Name

UMEZU, Shinjiro

Official Title

Professor

Affiliation

(School of Creative Science and Engineering)

Contact Information

Mail Address

Mail Address
umeshin@waseda.jp
Mail Address(Others)
umezu@riken.jp

URL

Web Page URL

http://www.umeshin.mmech.waseda.ac.jp/en/

http://www.umeshin.mmech.waseda.ac.jp

Grant-in-aids for Scientific Researcher Number
70373032

Sub-affiliation

Sub-affiliation

Faculty of Science and Engineering(Graduate School of Creative Science and Engineering)

Affiliated Institutes

次世代ロボット研究機構

運営委員 2018-2018

次世代ロボット研究機構

研究所員 2015-

理工学術院総合研究所(理工学研究所)

兼任研究員 2018-

自動車用新材料および新製造プロセス研究所

研究所員 2016-2019

自動車用新材料および新製造プロセス研究所

研究所員 2019-

Educational background・Degree

Educational background

-2006 Waseda UNIV. Graduate School, Division of Engineering Mechanical Eng.

Interview Guide

Category
Engineering

Research Field

Grants-in-Aid for Scientific Research classification

Engineering / Mechanical engineering / Intelligent mechanics/Mechanical systems

Technology Seeds

Paper

The high precision drawing method of chocolate utilizing electrostatic ink-jet printer

Takagishi, Kensuke; Suzuki, Yuya; Umezu, Shinjiro

Journal of Food Engineering 216p.138 - 1432018/01-2018/01

DOIScopus

Detail

ISSN:02608774

Outline:© 2017 Elsevier Ltd The objective of this study is to develop 3D food printer that can improve taste by means of creating food texture and can grant artistry which pastry chef perform by utilizing electrostatic inkjet printer high precision printing. There is a previous 3D food printer which utilizes Fused Deposition Modeling (FDM) to print chocolate. This method is to melt the material by heat and then print the material layer by layer to shape. It can only represent a rough image of the object since its print precision is rough. Furthermore, the material it can use is limited. Therefore in this study, we utilize electrostatic inkjet printing technology. By utilizing electrostatic inkjet printing, it not only enables high precision printing and grants food artistry but it also optimizes inner structure. High precision food printing is one of the important element to create food texture. We manufactured the electrostatic inkjet chocolate 3D printer and investigated its basic property. Utilized electrostatic inkjet chocolate 3D printer to print chocolate on the edible film and transfer it to a complex free surface.

Fundamental characteristics of printed gelatin utilizing micro 3D printer

Tanaka, Ryu ichiro; Sakaguchi, Katsuhisa; Umezu, Shinjiro; Umezu, Shinjiro

Artificial Life and Robotics 22(3) p.316 - 3202017/09-2017/09

DOIScopus

Detail

ISSN:14335298

Outline:© 2017, ISAROB. Gelatin is useful for biofabrication, because it can be used for cell scaffolds and it has unique properties. Therefore, we attempted to fabricate biodevices of gelatin utilizing micro 3D printer which is able to print with high precision. However, it has been difficult to fabricate 3D structure of gelatin utilizing 3D printer, because a printed gelatin droplet on the metal plate electrode would spread before solidification. To clear this problem, we developed a new experimental set-up with a peltier device that can control temperature of the impact point. At an impact point temperature of 80 °C, the spreading of printed gelatin droplets was prevented. Therefore, we were able to print a ball gelatin. In addition, we were able to print a narrower gelatin line than at an impact point temperature of 20 °C.

Bio-inspired wing-folding mechanism of micro air vehicle (MAV)

Jitsukawa, Tomohiro; Adachi, Hisaya; Abe, Takamichi; Yamakawa, Hiroshi; Umezu, Shinjiro

Artificial Life and Robotics 22(2) p.203 - 2082017/06-2017/06

DOIScopus

Detail

ISSN:14335298

Outline:© 2016, ISAROB. Over the past few years, many researchers have shown an interest in micro air vehicle (MAV), since it can be used for rescue mission and investigation of danger zone which is difficult for human being to enter. In recent years, many researchers try to develop high-performance MAVs, but a little attention has been given to the wing-folding mechanism of wings. When the bird and the flying insects land, they usually fold their wings. If they do not fold their wings, their movement area is limited. In this paper, we focused on the artificial wing-folding mechanism. We designed a new artificial wing that has link mechanism. With the wing-folding mechanism, the wing span was reduced to 15%. In addition, we set feathers separately on the end of wings like those of real birds. The wings make thrust force by the change of the shape of the feathers. However, the wings could not produce enough lift force to lift it. Therefore, we have come to the conclusion that it is necessary to optimize the wings design to get stronger lift force by flapping.

Fabrication of micro-gelatin fiber utilizing coacervation method

Arai, Takafumi; Tanaka, Ryuichiro; Sakaguchi, Katsuhisa; Umezu, Shinjiro

Artificial Life and Robotics 22(2) p.197 - 2022017/06-2017/06

DOIScopus

Detail

ISSN:14335298

Outline:© 2016, ISAROB. Biotechnology has drastically been advanced by the development of iPS and ES cells, which are representative forms induced pluripotent stem cells. In the micro/nano bio field, the development of cells and Taylor-made medicine for a potential treatment of incurable diseases has been a center of attention. The melting point of gelatin is between 25 and 33 °C, and the sol–gel transition occurs in low temperature. This makes the deformation of this useful biomaterial easy. The examples of gelatin fiber applications are suture threads, blood vessel prosthesis, cell-growth-based materials, filter materials, and many others. Because the cell size differs depending on the species and applications, it is essential to fabricate gelatin fibers of different diameters. In this paper, we have developed a fabrication method for gelatin fibers the coacervation method. We fabricated narrow gelatin fibers having a diameter over 10 μm.

Fabrication of micro-alginate gel tubes utilizing micro-gelatin fibers

Sakaguchi, Katsuhisa; Arai, Takafumi; Shimizu, Tatsuya; Umezu, Shinjiro

Japanese Journal of Applied Physics 56(5) 2017/05-2017/05

DOIScopus

Detail

ISSN:00214922

Outline:© 2017 The Japan Society of Applied Physics. Tissues engineered utilizing biofabrication techniques have recently been the focus of much attention, because these bioengineered tissues have great potential to improve the quality of life of patients with various hard-to-treat diseases. Most tissues contain micro-tubular structures including blood vessels, lymphatic vessels, and bile canaliculus. Therefore, we bioengineered a micro diameter tube using alginate gel to coat the core gelatin gel. Micro-gelatin fibers were fabricated by the coacervation method and then coated with a very thin alginate gel layer by dipping. A micro diameter alginate tube was produced by dissolving the core gelatin gel. Consequently, these procedures led to the formation of micro-alginate gel tubes of various shapes and sizes. This biofabrication technique should contribute to tissue engineering research fields.

Fabrication of micro-alginate gel tubes utilizing micro-gelatin fibers

Sakaguchi Katsuhisa;Arai Takafumi;Shimizu Tatsuya;Umezu Shinjiro

Jpn. J. Appl. Phys. 56(5) 2017/04-2017/04

CiNii

Detail

ISSN:0021-4922

Outline:Tissues engineered utilizing biofabrication techniques have recently been the focus of much attention, because these bioengineered tissues have great potential to improve the quality of life of patients with various hard-to-treat diseases. Most tissues contain micro-tubular structures including blood vessels, lymphatic vessels, and bile canaliculus. Therefore, we bioengineered a micro diameter tube using alginate gel to coat the core gelatin gel. Micro-gelatin fibers were fabricated by the coacervation method and then coated with a very thin alginate gel layer by dipping. A micro diameter alginate tube was produced by dissolving the core gelatin gel. Consequently, these procedures led to the formation of micro-alginate gel tubes of various shapes and sizes. This biofabrication technique should contribute to tissue engineering research fields.

Development of the Improving Process for the 3D Printed Structure

Takagishi, Kensuke; Umezu, Shinjiro

Scientific Reports 72017/01-2017/01

DOIScopus

Detail

Outline:© The Author(s) 2017.The authors focus on the Fused Deposition Modeling (FDM) 3D printer because the FDM 3D printer can print the utility resin material. It can print with low cost and therefore it is the most suitable for home 3D printer. The FDM 3D printer has the problem that it produces layer grooves on the surface of the 3D printed structure. Therefore the authors developed the 3D-Chemical Melting Finishing (3D-CMF) for removing layer grooves. In this method, a pen-style device is filled with a chemical able to dissolve the materials used for building 3D printed structures. By controlling the behavior of this pen-style device, the convex parts of layer grooves on the surface of the 3D printed structure are dissolved, which, in turn, fills the concave parts. In this study it proves the superiority of the 3D-CMF than conventional processing for the 3D printed structure. It proves utilizing the evaluation of the safety, selectively and stability. It confirms the improving of the 3D-CMF and it is confirmed utilizing the data of the surface roughness precision and the observation of the internal state and the evaluation of the mechanical characteristics.

Development of the Improving Process for the 3D Printed Structure

Takagishi, Kensuke;Umezu, Shinjiro

SCIENTIFIC REPORTS 72017-2017

DOIWoS

Detail

ISSN:2045-2322

High strengthening of 3D printed structure utilizing chemical Melting finishing

TAKAGISHI Kensuke;UMEZU Shinjiro

The Proceedings of the Conference on Information, Intelligence and Precision Equipment : IIP 2017(0) p.PH - 52017-2017

CiNii

Detail

Outline:When the 3D printed structures were printed utilizing FDM 3D printer the layer grooves were generated on the structures. The layer grooves make the 3D printed structures strength decrease. Therefore authors already devised the 3D-CMF (Chemical Melting Finishing). The 3D-CMF is the method that dissolve the convex part of the layer grooves and filled in the concave part of the layer grooves and smoothen the layer grooves.3D-CMF reduces the cause of breaking of the 3D printed structures, which is considered to increase the strength. In this paper, we investigated the fundamental characteristics of the 3D-CMF and demonstrate of the change of the strength of the 3D printed structures.

Attempt of the inner structure grinding wheel by PELID and 3D Printer.

Yamada Nozomu;Itoh Nobuhide;Mashiko Yuki;Omori Hitoshi;Umezu Shinjiro;Inazawa Katsufumi

Proceedings of JSPE Semestrial Meeting 2017(0) p.381 - 3822017-2017

CiNii

Developing patterning technology of biomaterial gels utilizing "Micro bio 3D printer"

Transactions of Japanese Society for Medical and Biological Engineering 55(3) p.203 - 2032017-2017

CiNii

Detail

Outline:

Bio-printing technologies have been developing for fabricating 3D scaffolds, and complex cell tissues. In this research, we have been developing the micro bio 3D printer. A syringe with a taper nozzle was mounted perpendicular to the stage. The syringe was filled with the biomaterial ink. When the high voltage was applied to the ink in the syringe, small droplets were ejected by the strong electrostatic force. We can print high viscosity ink precisely because of electrostatic force and We can print any patterns of biomaterial gels by moving XYZ stage. For fabricating artificial cell tissues, high precision printing technology of biomaterials was needed, but it is difficult utilizing commercial inkjet. On the other hand, by utilizing micro 3D printer, it is possible to print biomaterial gels precisely. In this research, we developed patterning technology of biomaterial gels utilizing micro bio 3D printer.

H-2-3 Construction of laminated grinding wheel production system using PELID

Tsukada Namiki;Itoh Nobuhide;Ohmori Hitoshi;Kato Teruko;Umezu Shinjiro

Conference on Information, Intelligence and Precision Equipment : IIP 2016p."H - 2-3-1"-"H-2-3-2"2016/03-2016/03

CiNii

Detail

Outline:In grinding, it is effective to use micro-particle grinding wheels to create high quality ground surfaces. However, the finer the abrasives used, the more problematic will the aggregateing of the abrasives be during the fabrication of the wheel. In this study, we aimed to resolve this problem by applying PELID to e venly disperse the microabrasives while laminating the grinding wheel. As a result of investigations, it was found that the microabrasives can be evenly dispersed over conductive substrates by PELID, but dispersion onto nonconductive substrates is uneven due to the charge-up of the substrate. Based on these findings, we proposed a new twin-nozzle PELID method, carried out experiments on dispersion on nonconductive substrates.

H-2-4 Attempt of abrasive arrangement control by PELID and 3D-printer

YAMAMOTO Daiki;ITOH Nobuhide;OHMORI Hitoshi;UMEZU Shinjiro;INAZAWA Katsufumi

Conference on Information, Intelligence and Precision Equipment : IIP 2016p."H - 2-4-1"-"H-2-4-2"2016/03-2016/03

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Detail

Outline:In recent years, competition in the manufacturing industry is growing increasingly intense every year on a global-scale. For this reason, Higher performance and miniaturization of products, weight reduction are important challenges to companies. The same demands are also made to tools essential to manufacturing such as grinding wheels. To meet these demands, the authors are developing a system which combines 3D printing and PELID to build grinding wheels , ELID for improving the wheel surface to provide the required grinding wheel performance, PELID(Patterning with Electrostatically Injected Droplet) which is a liquid ejection technique for controlling the distribution of abrasives in the grinding wheel. This report discusses the results of reviewing the system for fabricating grinding wheels.

H-3-2 Fabrication of micro gelatin fibers utilizing a PTFE mold

TANAKA Ryu-ichiro;UEHARA Yoshihiro;SAKAGUCHI Katsuhisa;UMEZU Shinjiro

Conference on Information, Intelligence and Precision Equipment : IIP 2016p."H - 3-2-1"-"H-3-2-2"2016/03-2016/03

CiNii

Detail

Outline:Gelatin is useful biomaterials for biofabrication. The property of gelatin is unique. The state is changed to sol or gel by temperature. Utilizing the property of gelatin, we are able to fabricate cave for artificial Vessels in biodevices. Therefore, micro gelatin fibers are useful devices for fabrication of artifical vessles. In this paper, we made a mold for fabrication of micro gelatin fibers. We used PTFE for molds, because it has non-adhesive. Then, we made micro gelatin fibers which were 20〜100 μm in width utilizing the mold. Machining marks of the mold were transcribed on the surface of micro gelatin fibers. We are able to fabricate cave with arbitrary shape for artificial vessels utilizing micro gelatin fibers.

H-3-4 Mechanism Development of Improving Surface Roughness 3D Printed Products

Takagishi Kensuke;Umezu Shinjiro

Conference on Information, Intelligence and Precision Equipment : IIP 2016p."H - 3-4-1"-"H-3-4-4"2016/03-2016/03

CiNii

Detail

Outline:Grooves were generated on the surface of the molding when 3D structures printed. The grooves were difficult to remove by the abrasive finishing process because the grooves exist inside of the printed structures. When the printed surface was melted and reformed utilizing chemical melting finishing process, the grooves will be disappeared and smooth surface will be appeared. 3D-Chemical Melting Finishing Process can selective surface treatment. In this paper, we investigated the fundamental characteristics of the 3D-Chemical Melting Finishing Process.

H-3-5 Structual control of titanium dioxide thin films and evaluation the stacking films for dye-sentitized solar cell using electrostatic inkjet method

Nakamura Yuki;Takamori Kengo;Mizuno Maho;Kunugi Yoshihito;Iwamori Satoru;Umezu Shinjiro

Conference on Information, Intelligence and Precision Equipment : IIP 2016p."H - 3-5-1"-"H-3-5-2"2016/03-2016/03

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Detail

Outline:Dye-sensitized Solar Cell (DSC) is one of the noteworthy devices due to its superior decoration and low cost process. However, there is a drawback in low conversion efficiency. Therefore we have studied fabrication method of the TiO_2 films for the improvement of the conversion efficiency. In this paper, we report on a method how to improve the conversion efficiency due to optimizing TiO_2 layers using the electrostatic inkjet. It was found that density of the TiO_2 layer is controlled by changing gap length between the two electrode by a scanning electron microscope of the inside and interface of TiO_2 layers. Further, the conversion efficiency of the cell was slightly enhanced by the stack of the two different density layers.

H-3-6 Bio-inspired wing folding mechanism of micro air vehicle

ADACHI Hisaya;JITSUKAWA Tomohiro;ABE Takamichi;YAMAKAWA Hiroshi;UMEZU Shinjiro

Conference on Information, Intelligence and Precision Equipment : IIP 2016p."H - 3-6-1"-"H-3-6-3"2016/03-2016/03

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Detail

Outline:Because of the recent development science and technology, Micro Air Vehicle (MAV) has been advanced to the investigation, such as a disaster site. These aircraft have spread, in this condition there is a possibility of contact with an obstacle when moving on the ground. For damage to the power source is fatal to MAV, we consider that the development of the folding mechanism is an urgent need, in the present study was carried out its development.

Flow control for cell growth by movement of magnetic particles utilizing electromagnetic force

Umezu, Shinjiro

Artificial Life and Robotics 21(1) p.1 - 42016/03-2016/03

DOIScopus

Detail

ISSN:14335298

Outline:© 2016, ISAROB.Three-dimensional (3D) cell structures are required to fabricate artificial organ. Inkjet technology is applied for fabrication of 3D cell structures in order to fabricate artificial organ and investigate biochemical characteristics of cells in 3D cell structures. Usually cells located inside 3D cell structures get nutrition via blood vessels. In case that there are no blood vessels in the 3D cell structures, cells located inside the 3D cell structures will die of nutrition shortage. So, blood vessels are essential to fabricate 3D cell structures. When the amount and flow of nutrition is controlled, growth speed of cells will be changed. We control the flow around the cells utilizing magnetic particles and magnetic force. The magnetic particles are installed in the dish that is filled with medium, nutrition and living cells. When the magnetic particles are trapped and transported by magnetic force, the cell growth will be controlled. In this paper, we challenge to control the flow utilizing magnetic particles and magnetic force.

Attempt of the abrasive grains uniformly dispersed resin grinding wheel by PELID and 3D Printer.

Yamada Nozomu;Itoh Nobuhide;Mashiko Yuki;Omori Hitoshi;Umezu Shinjiro;Inazawa Katsufumi

Proceedings of JSPE Semestrial Meeting 2016(0) p.337 - 3382016-2016

CiNii

Manufacture of laminated grinding wheel with a twin nozzle PELID

Tsukada Namiki;Itoh Nobuhide;Ohmori Hitoshi;Kato Teruko;Umezu Shinjiro

Proceedings of JSPE Semestrial Meeting 2016(0) p.335 - 3362016-2016

CiNii

Development of ELID grinding wheel using PELID and nano- diamond

Ohno Ryouhei;Ito Nobuhide;Inazawa Katsufumi;Omori Hitoshi;Kato Teruko;Umezu Shinjiro

Proceedings of JSPE Semestrial Meeting 2016(0) p.339 - 3402016-2016

CiNii

Construction of the grinding wheel production system Using PELID method

Tsukada Namiki;Itoh Nobuhide;Ohmori Hitoshi;Kato Teruko;Umezu Shinjiro

Proceedings of JSPE Semestrial Meeting 2016(0) p.427 - 4282016-2016

CiNii

Detail

Outline:Using a microabrasive is the effective means to improve the surface roughness in the machining of the fixed abrasive grinding wheel. However, the microabrasive is easy aggregation and may not be effective. Therefore, we use PELID(Patterning with Electrostatically-Injected Droplet) method for dispersing the microabrasive and have attempted manufacture of the wheel. In this study, we report on the wheel of the basic characteristics that were constructed and production of the grinding wheel fabrication using PELID method.

ELID grinding wheel fabrication technology applying PELID and 3D printer

Yamamoto Daiki;itoh Nobuhide;Ohmori Hitoshi;Umezu Shinjiro

Journal of the Japan Society for Abrasive Technology 60(5) p.267 - 2682016-2016

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Detail

Outline:To realize on-demand manufacturing techniques, we have developed a new hybrid system that combines a 3D printer and liquid droplet abrasive technology PELID. Grinding wheels were built using this system and examined by grinding experiments. During the experiments, we found that the injection of abrasives into the grinding wheels can be controlled by combining ELID, and that the grinding wheels improve the surface roughness of the work. These results confirm that the new system is able to build ELID grinding wheels.

Spining of Micro gelatin fibers for fabrication of biodevices with cave

Tanaka Ryu-Ichiro;Arai Takafumi;Uehara Yoshihiro;Sakaguchi Katsuhisa;Umezu Shinjiro

Transactions of Japanese Society for Medical and Biological Engineering 54(27) p.S165 - S1652016-2016

CiNii

Detail

Outline:

Gelatin has unique properties. The form is changed by temperature. In addition, the melting point is around 37 degree C. For these reasons, gelatin is useful for biofabrication. We are able to fabricate biodevices of biomaterials with cave utilizing gelatin. In this study, we spun gelatin fibers utilizing three methods. We were able to fabricate micro gelatin fibers which diameter was 20~200 μm. Each methods have merits and demerits. Therefore, utilizing three methods, we were able to fabricate complex structures of micro gelatin fibers.

Medical Applications Utilizing 3D Printer

UMEZU Shinjiro;NAKAMURA Makoto

DENSHI SHASHIN GAKKAISHI (Electrophotography) 54(4) p.326 - 3312015-2015

CiNii

Detail

ISSN:1344-4425

Outline:In order to fabricate 3D complicated tissues and functional organs artificially, various manufacturing technologies have been developed in tissue engineering field, such as conventional scaffold based approaches, cell culture in designed molds, cell sheet technology that is the laminating of the cell sheets. Recently, cell spheroids and cell fibers have been produced by culturing cells in micro-scaled wells and by using micro fluidic devices fabricated by MEMS. Those are supposed to be useful biological parts to assemble large tissues. Such manufacturing-based approaches are called biofabrication, biomanufacturing and bioassembling. Among those promising technologies, in recent days, bio 3D printer has been focused most highly. It is because 3D printer technology has a big potential to position several biological materials including living cells precisely in 3D space based on the 3D CAD data, as the printing technologies have enabled to print several materials precisely in 2D. In this paper, we introduce several kinds of bio 3D printers.

Precision printing of gelatin utilizing electrostatic inkjet

Umezu, Shinjiro

JAPANESE JOURNAL OF APPLIED PHYSICS 53(5) 2014-2014

DOIWoS

Detail

ISSN:0021-4922

Characteristics on micro-biofabrication by patterning with electrostatically injected droplet

Umezu, Shinjiro;Ohmori, Hitoshi

CIRP ANNALS-MANUFACTURING TECHNOLOGY 63(1) p.221 - 2242014-2014

DOIWoS

Detail

ISSN:0007-8506

Patent

Reference Number:338

シート分離機構(日本)

川本 広行, 梅津 信二郎

2003-353060、2005-119756

Reference Number:2031

センサフィルム及び積層体(日本)

梅津 信二郎, 大矢 貴史

2018- 93864、2019-200087

Reference Number:2057

人工血管ユニットの製造方法及び人工血管ユニット(日本)

梅津 信二郎, 坂口 勝久, 秋元 渓

2018-095023、2019-198493

Reference Number:2067

心電モニタリングシステム(日本)

梅津 信二郎, 廣瀬 佳代, 藤枝 俊宣

2018-101096、2019-202097

Reference Number:2228

細胞を配向させる細胞培養基材、及びその製造方法(日本)

山中 文登, 梅津 信二郎

2020- 25572

Reference Number:2388

施術用袋状体(日本)

梅津 信二郎

2020-165492

Research Grants & Projects

Grant-in-aids for Scientific Research Adoption Situation

Research Classification:

Development of Dye-Sensitized Solar Cell Utilizing Micro Digital Fabrication

2013/-0-2016/-0

Allocation Class:¥5330000

Research Classification:

Fabrication of 3D Cell Structures Utilizing Micro Bio-Digital Fabrication Method

2011/-0-2013/-0

Allocation Class:¥4550000

Research Classification:

Development of Circuit Drawing and 3D Structure Utilizing Electrostatic Inkjet Phenomena

Allocation Class:¥3250000

Research Classification:

Development of Smart Electronics Sheet Within Cardiac Cell Sheet

2018/-0-2020/-0

Allocation Class:¥6240000

Research Classification:

3D Cell Structure Utilizing Micro 3D Printer and Cell Sheet

2016/-0-2018/-0

Allocation Class:¥3640000

Research Classification:

Fabrication of TPB microstructure of SOFC by using 3D printers

2016/-0-2017/-0

Allocation Class:¥3640000

Research Classification:

Development of innovative Micro 3D Printer

2016/-0-2019/-0

Allocation Class:¥14820000

Research Classification:

Precision Evaluation of Cardiac Toxicity Utilizing Cyber-Physical System

2019/-0-2022/-0

Allocation Class:¥17680000

Research Classification:

Development of a minimally invasive electronic sheet for ex vivo monitoring of artificial cardiomyocyte tissue

2020/-0-2022/-0

Allocation Class:¥6370000

Research Classification:

Development of advanced AI system for high accurate diagnosis of cerebral infarction and myocardial infarction

2020/-0-2023/-0

Allocation Class:¥18330000

On-campus Research System

Special Research Project

高精度3Dプリンタの開発とこれを用いた人工生体組織の作製

2014

Research Results Outline:3Dプリンタは、金属やプラスチックから構成される立体造形物の作製技術に応用されており、革新的な製造技術として強く期待されている。また、インクジェット型3Dプリンタは、金属やプラスチックから構成される立体造形物の作製技術に応用されており、革新的な製造技術として強く期待されている。また、インクジェット型の3Dプリンタは、通常のプリンタと同じように操作できることから、ユザーフレンドリーであり、さらなる...3Dプリンタは、金属やプラスチックから構成される立体造形物の作製技術に応用されており、革新的な製造技術として強く期待されている。また、インクジェット型の3Dプリンタは、通常のプリンタと同じように操作できることから、ユザーフレンドリーであり、さらなる発展が期待できる。これまで申請者らは、細胞やゼラチン、コラーゲン、アルギン酸ゲルなどの様々なバイオマテリアルの3Dパターニングが可能なことを実証している。本研究では、このマイクロ3Dプリンタのインクジェットモジュールに温度可変な機構を取り付けることによって、吐出する高分子液体の温度を変え、粘性を下げることによって、より微細なパターニングを可能にした。

マイクロフードプリンタによるデコレーション

2016

Research Results Outline: 実際に食品を製造する際に必要となる描画パターンを開発した高精度マイクロ3Dフードプリンタを用いて複数のサンプルを作製した。本研究で作製した描画パター 実際に食品を製造する際に必要となる描画パターンを開発した高精度マイクロ3Dフードプリンタを用いて複数のサンプルを作製した。本研究で作製した描画パターンは消費者の感覚器が認識可能である50μm以下の精度での描画がなされていることが確認された。またこ... 実際に食品を製造する際に必要となる描画パターンを開発した高精度マイクロ3Dフードプリンタを用いて複数のサンプルを作製した。本研究で作製した描画パターンは消費者の感覚器が認識可能である50μm以下の精度での描画がなされていることが確認された。またこれらの描画パターンを組み合わせることで、より複雑なパターンを50μm以下の精度で描画することが可能であることを確認した。このことから本研究で開発をした高精度マイクロ3Dフードプリンタを用いることで、消費者が満足しうる食品の製造が可能であることが実証された。

放電場を利用したマイクロ駆動機構

2004

Research Results Outline:バイオテクノロジーやマルチメディアへの寄与を目指して,様々なマイクロマシンが提案されている.これまで放電場では短絡によって静電気力が作用しないと考えらバイオテクノロジーやマルチメディアへの寄与を目指して,様々なマイクロマシンが提案されている.これまで放電場では短絡によって静電気力が作用しないと考えられていたが,我々の針対平板電極系放電場に関する研究によって,コロナ放電場ではイオン風の反力に起因す...バイオテクノロジーやマルチメディアへの寄与を目指して,様々なマイクロマシンが提案されている.これまで放電場では短絡によって静電気力が作用しないと考えられていたが,我々の針対平板電極系放電場に関する研究によって,コロナ放電場ではイオン風の反力に起因する100 Nオーダの電極が反発する方向の力が生じることがわかっている.本研究では,この針対平板電極系放電場のイオン風を利用した駆動機構・送風機構を作成し,以下のことを明らかにした.○駆動機構1.本駆動機構は,傾けた針電極と対向平板電極から構成される単純な構造である.2.機構の駆動速度や方向を針電極の傾きや印加電圧で単純にコントロールできる.3.並進駆動だけでなく,逆方向に針電極を設置することで回転駆動も可能である.4.また,イオン風の反力を利用した浮上機構を作成可能なことを実証した.○送風機構1.小型で,騒音がないマイクロファンを作成した.2.スポット冷却が可能で,10度程度の冷却が可能であり,0.数%の冷却効率であった.3.針電極と平板電極の位置,印加電圧によって,冷却のスポット径や冷却温度をコントロールできる. その他には,1.針電極の代わりに液体を満たしたチューブを使用することで,液滴が吐出することがわかっている.この現象を回路の配線を描くことに利用した結果,100 mオーダのラインが描けた.2.摩擦係数に異方性があるシートの上面に交番的な静電力を作用させると,並進駆動する機構の作成し,特性を把握した結果,印加電圧や印加周波数によって,駆動速度・駆動方向が変わることがわかった.また,駆動メカニズムを計算によって検証した結果,実験結果が概ね妥当だった.3.静電力を利用して,粒径の異なる粒子を分離する機構を試作し,特性を把握した結果,印加電圧が高いほど,分離される粒径が大きくなった.

Lecture Course

Course TitleSchoolYearTerm
Basic Experiments in Science and Engineering 2A SougoukikaiSchool of Creative Science and Engineering2020spring semester
Material MechanicsSchool of Creative Science and Engineering2020spring semester
Material Mechanics [S Grade]School of Creative Science and Engineering2020spring semester
Design EngineeringSchool of Creative Science and Engineering2020fall semester
Design Engineering [S Grade]School of Creative Science and Engineering2020fall semester
Advanced Material MechanicsSchool of Creative Science and Engineering2020fall semester
Advanced Material Mechanics [S Grade]School of Creative Science and Engineering2020fall semester
Mechanical Drawing and Design Fundamentals (Japanese)School of Creative Science and Engineering2020fall semester
Mechanical Drawing and Design Fund.School of Creative Science and Engineering2020fall semester
Mechanical Drawing and Design Fund. [S Grade]School of Creative Science and Engineering2020fall semester
Mechanical Engineering Laboratory Fundamentals (Japanese)School of Creative Science and Engineering2020spring semester
Mechanical Engineering Laboratory Fund.School of Creative Science and Engineering2020spring semester
Mechanical Engineering Laboratory Fund. [S Grade]School of Creative Science and Engineering2020spring semester
Mechanical Engineering Laboratory Advanced (Japanese)School of Creative Science and Engineering2020fall semester
Mechanical Engineering Laboratory Adv.School of Creative Science and Engineering2020fall semester
Mechanical Engineering Laboratory Adv. [S Grade]School of Creative Science and Engineering2020fall semester
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Seminar [S Grade]School of Creative Science and Engineering2020full year
Engineering PracticeSchool of Creative Science and Engineering2020full year
Engineering Practice [S Grade]School of Creative Science and Engineering2020full year
Graduation ThesisSchool of Creative Science and Engineering2020full year
Graduation Thesis [S Grade]School of Creative Science and Engineering2020full year
Micro-nano MachineSchool of Creative Science and Engineering2020fall semester
Graduation Thesis ASchool of Creative Science and Engineering2020fall semester
Graduation Thesis A [S Grade]School of Creative Science and Engineering2020fall semester
Graduation Thesis BSchool of Creative Science and Engineering2020spring semester
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Mechanical Engineering Laboratory ASchool of Creative Science and Engineering2020spring semester
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Seminar CSchool of Creative Science and Engineering2020spring semester
Engineering Practice CSchool of Creative Science and Engineering2020spring semester
Material Mechanics FundamentalsSchool of Creative Science and Engineering2020fall semester
Material Mechanics for Mechanical Design ASchool of Creative Science and Engineering2020fall semester
Material Mechanics Fundamentals [S Grade]School of Creative Science and Engineering2020fall semester
Seminar ASchool of Creative Science and Engineering2020spring semester
Seminar ASchool of Creative Science and Engineering2020spring semester
Engineering Practice ASchool of Creative Science and Engineering2020spring semester
Engineering Practice ASchool of Creative Science and Engineering2020spring semester
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Seminar BSchool of Creative Science and Engineering2020fall semester
Engineering Practice BSchool of Creative Science and Engineering2020fall semester
Engineering Practice BSchool of Creative Science and Engineering2020fall semester
Material Mechanics AdvancedSchool of Creative Science and Engineering2020spring semester
Material Mechanics for Mechanical Design BSchool of Creative Science and Engineering2020spring semester
Micro/Nano MachineSchool of Creative Science and Engineering2020fall semester
Design EngineeringGraduate School of Fundamental Science and Engineering2020fall semester
Design EngineeringGraduate School of Creative Science and Engineering2020fall semester
Design EngineeringGraduate School of Advanced Science and Engineering2020fall semester
Master's Thesis (Department of Modern Mechanical Engineering)Graduate School of Creative Science and Engineering2020full year
Research on Technology on Micro/Nano FabricationGraduate School of Creative Science and Engineering2020full year
Research on Micro / Nano FabricationGraduate School of Creative Science and Engineering2020full year
Research on Sophisticated Heat ProtectionGraduate School of Creative Science and Engineering2020full year
Design and Co-creation Practice AGraduate School of Creative Science and Engineering2020spring semester
Design and Co-creation Practice BGraduate School of Creative Science and Engineering2020fall semester
Micro / Nano FabricationGraduate School of Creative Science and Engineering2020fall semester
Seminar on Technology on Micro/Nano Fabrication AGraduate School of Creative Science and Engineering2020spring semester
Seminar on Micro / Nano Fabrication AGraduate School of Creative Science and Engineering2020spring semester
Seminar on Technology on Micro/Nano Fabrication BGraduate School of Creative Science and Engineering2020fall semester
Seminar on Micro / Nano Fabrication BGraduate School of Creative Science and Engineering2020fall semester
Seminar on Technology on Micro/Nano Fabrication CGraduate School of Creative Science and Engineering2020spring semester
Seminar on Micro / Nano Fabrication CGraduate School of Creative Science and Engineering2020spring semester
Seminar on Technology on Micro/Nano Fabrication DGraduate School of Creative Science and Engineering2020fall semester
Seminar on Micro / Nano Fabrication DGraduate School of Creative Science and Engineering2020fall semester
Seminar on Sophisticated Heat Protection AGraduate School of Creative Science and Engineering2020spring semester
Seminar on Sophisticated Heat Protection BGraduate School of Creative Science and Engineering2020fall semester
Seminar on Sophisticated Heat Protection CGraduate School of Creative Science and Engineering2020spring semester
Seminar on Sophisticated Heat Protection DGraduate School of Creative Science and Engineering2020fall semester
Master's Thesis (Department of Modern Mechanical Engineering)Graduate School of Creative Science and Engineering2020full year
Research on Micro / Nano FabricationGraduate School of Creative Science and Engineering2020full year
Research on Sophisticated Heat ProtectionGraduate School of Creative Science and Engineering2020full year
Master's Thesis (Department of Integrative Bioscience and Biomedical Engineering)Graduate School of Advanced Science and Engineering2020full year
Research on Regenerative Medical Engineering and its ApplicationGraduate School of Advanced Science and Engineering2020full year
Research on Regenerative Medical Engineering and its ApplicationGraduate School of Advanced Science and Engineering2020full year
Seminar on Regenerative Medical Engineering AGraduate School of Advanced Science and Engineering2020spring semester
Seminar on Regenerative Medical Engineering AGraduate School of Advanced Science and Engineering2020spring semester
Seminar on Regenerative Medical Engineering BGraduate School of Advanced Science and Engineering2020fall semester
Seminar on Regenerative Medical Engineering BGraduate School of Advanced Science and Engineering2020fall semester
Seminar on Regenerative Medical Engineering CGraduate School of Advanced Science and Engineering2020spring semester
Seminar on Regenerative Medical Engineering CGraduate School of Advanced Science and Engineering2020spring semester
Seminar on Regenerative Medical Engineering DGraduate School of Advanced Science and Engineering2020fall semester
Seminar on Regenerative Medical Engineering DGraduate School of Advanced Science and Engineering2020fall semester
Master's Thesis (Department of Integrative Bioscience and Biomedical Engineering)Graduate School of Advanced Science and Engineering2020full year
Research on Regenerative Medical Engineering and its ApplicationGraduate School of Advanced Science and Engineering2020full year