• 442 Citations
  • 12 h-Index
20032020

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2020

An Efficient Ultra-Flexible Photo-Charging System Integrating Organic Photovoltaics and Supercapacitors

Liu, R., Takakuwa, M., Li, A., Inoue, D., Hashizume, D., Yu, K., Umezu, S., Fukuda, K. & Someya, T., 2020 May 1, In : Advanced Energy Materials. 10, 20, 2000523.

Research output: Contribution to journalArticle

1 Citation (Scopus)

A single-phase brookite TiO2 nanoparticle bridge enhances the stability of perovskite solar cells

Shahiduzzaman, M., Kulkarni, A., Visal, S., Wang, L., Nakano, M., Karakawa, M., Takahashi, K., Umezu, S., Masuda, A., Iwamori, S., Isomura, M., Miyasaka, T., Tomita, K. & Taima, T., 2020 Apr, In : Sustainable Energy and Fuels. 4, 4, p. 2009-2017 9 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Groove fabrication on surface of soft gelatin gel utilizing micro-electrical discharge machining (Micro-EDM)

Tamura, T., Akiyama, R., Tanaka, R. I., Kawamoto, H. & Umezu, S., 2020 Jul, In : Journal of Food Engineering. 277, 109919.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Nanograting Structured Ultrathin Substrate for Ultraflexible Organic Photovoltaics

Takakuwa, M., Heo, S. W., Fukuda, K., Tajima, K., Park, S., Umezu, S. & Someya, T., 2020 Mar 1, In : Small Methods. 4, 3, 1900762.

Research output: Contribution to journalArticle

1 Citation (Scopus)

PD-L1/L2 protein levels rapidly increase on monocytes via trogocytosis from tumor cells in classical Hodgkin lymphoma

Kawashima, M., Carreras, J., Higuchi, H., Kotaki, R., Hoshina, T., Okuyama, K., Suzuki, N., Kakizaki, M., Miyatake, Y., Ando, K., Nakayama, M., Umezu, S., Horie, R., Higuchi, Y., Katagiri, K., Goyama, S., Kitamura, T., Chamoto, K., Yano, S., Nakamura, N. & 1 others, Kotani, A., 2020, (Accepted/In press) In : Leukemia.

Research output: Contribution to journalArticle

Printing support hydrogels for creating vascular-like structures in stacked cell sheets

Tanaka, R. I., Sakaguchi, K. & Umezu, S., 2020 May 1, In : Artificial Life and Robotics. 25, 2, p. 199-203 5 p.

Research output: Contribution to journalArticle

2019

Attempts on pico-precision machining via combination of ELID-grinding and polishing

Ohmori, H., Kim, Y., Uehara, Y., Kasuga, H., Ono-Kato, T., Lin, W., Kurokawa, S. & Umezu, S., 2019 Jan 1, In : Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering. 85, 4, p. 304-309 6 p.

Research output: Contribution to journalArticle

Development of a high-precision viscous chocolate printer utilizing electrostatic inkjet printing

Suzuki, Y., Takagishi, K. & Umezu, S., 2019 Feb 1, In : Journal of Food Process Engineering. 42, 1, e12934.

Research output: Contribution to journalArticle

2 Citations (Scopus)

High Operation Stability of Ultraflexible Organic Solar Cells with Ultraviolet-Filtering Substrates

Kimura, H., Fukuda, K., Jinno, H., Park, S., Saito, M., Osaka, I., Takimiya, K., Umezu, S. & Someya, T., 2019 May 10, In : Advanced Materials. 31, 19, 1808033.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Low-Temperature-Processed Brookite-Based TiO2 Heterophase Junction Enhances Performance of Planar Perovskite Solar Cells

Shahiduzzaman, M., Visal, S., Kuniyoshi, M., Kaneko, T., Umezu, S., Katsumata, T., Iwamori, S., Kakihana, M., Taima, T., Isomura, M. & Tomita, K., 2019 Jan 9, In : Nano Letters. 19, 1, p. 598-604 7 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)

New thermal protection system using high-temperature carbon fibre-reinforced plastic sandwich panel

Kubota, Y., Miyamoto, O., Aoki, T., Ishida, Y., Ogasawara, T. & Umezu, S., 2019 Jan 1, In : Acta Astronautica.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Oblique Electrostatic Inkjet-Deposited TiO2 Electron Transport Layers for Efficient Planar Perovskite Solar Cells

Shahiduzzaman, M., Sakuma, T., Kaneko, T., Tomita, K., Isomura, M., Taima, T., Umezu, S. & Iwamori, S., 2019 Dec 1, In : Scientific reports. 9, 1, 19494.

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)
2018

Durable Ultraflexible Organic Photovoltaics with Novel Metal-Oxide-Free Cathode

Jiang, Z., Fukuda, K., Huang, W., Park, S., Nur, R., Nayeem, M. O. G., Yu, K., Inoue, D., Saito, M., Kimura, H., Yokota, T., Umezu, S., Hashizume, D., Osaka, I., Takimiya, K. & Someya, T., 2018 Jan 1, (Accepted/In press) In : Advanced Functional Materials. 1808378.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Simple action potential measurement of cardiac cell sheet utilizing electronic sheet

Ohya, T., Nakazono, K., Kikuchi, T., Sasaki, D., Sakaguchi, K., Shimizu, T., Fukuda, K., Someya, T. & Umezu, S., 2018 Mar 21, (Accepted/In press) In : Artificial Life and Robotics. p. 1-7 7 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

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

Takagishi, K., Suzuki, Y. & Umezu, S., 2018 Jan 1, In : Journal of Food Engineering. 216, p. 138-143 6 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Thermally stable, highly efficient, ultraflexible organic photovoltaics

Xu, X., Fukuda, K., Karki, A., Park, S., Kimura, H., Jinno, H., Watanabe, N., Yamamoto, S., Shimomura, S., Kitazawa, D., Yokota, T., Umezu, S., Nguyen, T. Q. & Someya, T., 2018 May 1, In : Proceedings of the National Academy of Sciences of the United States of America. 115, 18, p. 4589-4594 6 p.

Research output: Contribution to journalArticle

39 Citations (Scopus)

Ultraflexible near-infrared organic photodetectors for conformal photoplethysmogram sensors

Park, S., Fukuda, K., Wang, M., Lee, C., Yokota, T., Jin, H., Jinno, H., Kimura, H., Zalar, P., Matsuhisa, N., Umezu, S., Bazan, G. C. & Someya, T., 2018, In : Advanced Materials. 30, 34, 1802359.

Research output: Contribution to journalArticle

42 Citations (Scopus)
2017

Development of the Improving Process for the 3D Printed Structure

Takagishi, K. & Umezu, S., 2017 Jan 5, In : Scientific Reports. 7, 39852.

Research output: Contribution to journalArticle

22 Citations (Scopus)

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

Sakaguchi, K., Arai, T., Shimizu, T. & Umezu, S., 2017 May 1, In : Japanese Journal of Applied Physics. 56, 5, 05EB06.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Fundamental characteristics of printed gelatin utilizing micro 3D printer

Tanaka, R. I., Sakaguchi, K. & Umezu, S., 2017 Jan 25, (Accepted/In press) In : Artificial Life and Robotics. p. 1-5 5 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)
2016

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

Jitsukawa, T., Adachi, H., Abe, T., Yamakawa, H. & Umezu, S., 2016 Nov 21, (Accepted/In press) In : Artificial Life and Robotics. p. 1-6 6 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Fabrication of micro-gelatin fiber utilizing coacervation method

Arai, T., Tanaka, R., Sakaguchi, K. & Umezu, S., 2016 Dec 23, (Accepted/In press) In : Artificial Life and Robotics. p. 1-6 6 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

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

Umezu, S., 2016 Jan 29, (Accepted/In press) In : Artificial Life and Robotics. p. 1-4 4 p.

Research output: Contribution to journalArticle

2014

Characteristics on micro-biofabrication by patterning with electrostatically injected droplet

Umezu, S. & Ohmori, H., 2014, In : CIRP Annals - Manufacturing Technology. 63, 1, p. 221-224 4 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)

Precision printing of gelatin utilizing electrostatic inkjet

Umezu, S., 2014 May, In : Japanese journal of applied physics. 53, 5 SPEC. ISSUE 3, 05HC01.

Research output: Contribution to journalArticle

12 Citations (Scopus)

Spray-coated Pt counter electrode of dye-sensitized solar cell utilizing electrostatic inkjet printing

Umezu, S., Kosugi, K., Kunugi, Y. & Shimoyama, Y., 2014 May, In : Japanese journal of applied physics. 53, 5 SPEC. ISSUE 3, 05HA08.

Research output: Contribution to journalArticle

5 Citations (Scopus)
2013

Dye-sensitized solar cell utilizing electrostatic inkjet

Umezu, S., Kunugi, Y. & Ohmori, H., 2013 May 1, In : Japanese journal of applied physics. 52, 5 PART 2, 05DC23.

Research output: Contribution to journalArticle

14 Citations (Scopus)

Fabrication of dye-sensitized solar cells using electrostatic inkjet printing

Kunugi, Y., Shimoyama, Y. & Umezu, S., 2013 Aug 27, In : Journal of Photopolymer Science and Technology. 26, 3, p. 383-385 3 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Fundamental characteristics of bioprint on calcium alginate gel

Umezu, S., Hatta, T. & Ohmori, H., 2013 May 1, In : Japanese journal of applied physics. 52, 5 PART 2, 05DB20.

Research output: Contribution to journalArticle

15 Citations (Scopus)
2012

Biocell print utilizing patterning with electrostatically injected droplet (PELID) method

Umezu, S., 2012 Oct 1, In : Artificial Life and Robotics. 17, 1, p. 59-62 4 p.

Research output: Contribution to journalArticle

12 Citations (Scopus)
2011

Fundamental characteristics of printed cell structures utilizing electrostatic inkjet phenomena

Umezu, S., Kitajima, T., Ohmori, H. & Ito, Y., 2011 Apr 1, In : Sensors and Actuators, A: Physical. 166, 2, p. 251-255 5 p.

Research output: Contribution to journalArticle

29 Citations (Scopus)
2008

Electrostatic micro-ozone fan that utilizes ionic wind induced in pin-to-plate corona discharge system

Kawamoto, H. & Umezu, S., 2008 Jul 1, In : Journal of Electrostatics. 66, 7-8, p. 445-454 10 p.

Research output: Contribution to journalArticle

26 Citations (Scopus)
2007

An ozone fan utilizing pin-to-plate corona discharge field

Kawamoto, H., Masunari, Y. & Umezu, S., 2007 Oct, In : Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 73, 10, p. 2116-2121 6 p.

Research output: Contribution to journalArticle

Open Access

Development of electrostatic paper separation and feed mechanism

Kawamoto, H. & Umezu, S., 2007 Jun 1, In : Journal of Electrostatics. 65, 7, p. 438-444 7 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Force at spark discharge in pin-to-plate system

Kawamoto, H. & Umezu, S., 2007 Feb 1, In : Journal of Electrostatics. 65, 2, p. 75-81 7 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)
Open Access
1 Citation (Scopus)
2006

Classification of particle size utilizing traveling wave field

Kawamoto, H., Okada, Y., Kashima, T. & Umezu, S., 2006 Nov, In : Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C. 72, 11, p. 3509-3516 8 p.

Research output: Contribution to journalArticle

Open Access

Flow distribution and pressure of air due to ionic wind in pin-to-plate corona discharge system

Kawamoto, H., Yasuda, H. & Umezu, S., 2006 Jun 1, In : Journal of Electrostatics. 64, 6, p. 400-407 8 p.

Research output: Contribution to journalArticle

41 Citations (Scopus)
2005

Electrohydrodynamic deformation of water surface in a metal pin to water plate corona discharge system

Kawamoto, H. & Umezu, S., 2005 Mar 21, In : Journal of Physics D: Applied Physics. 38, 6, p. 887-894 8 p.

Research output: Contribution to journalArticle

46 Citations (Scopus)

Fundamental investigation on electrostatic ink jet phenomena in pin-to-plate discharge system

Kawamoto, H., Umezu, S. & Koizumi, R., 2005 Jan 1, In : Journal of Imaging Science and Technology. 49, 1, p. 19-27 9 p.

Research output: Contribution to journalArticle

36 Citations (Scopus)

Micro electrostatic driving mechanisms utilizing slanted-fiber sheet and slanted-plates

Umezu, S., Shiraishi, J., Kawamoto, H. & Itoh, Y., 2005 Jun, In : Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C. 71, 6, p. 1884-1891 8 p.

Research output: Contribution to journalArticle

Open Access

Paper separation and feed mechanism utilizing electrostatic force

Umezu, S., Shiraishi, J., Nishimura, H. & Kawamoto, H., 2005 Apr, In : Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C. 71, 4, p. 1361-1367 7 p.

Research output: Contribution to journalArticle

2004

Force at spark discharge in pin-to-plate gas discharge system

Umezu, S., Sogabe, H. & Kawamoto, H., 2004 Apr 1, In : Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C. 70, 4, p. 1149-1154 6 p.

Research output: Contribution to journalArticle

Ionic wind in pin-to-plate corona discharge system

Kawamoto, H., Yasuda, H. & Umezu, S., 2004 Jan 1, In : Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C. 70, 1, p. 169-175 7 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)
2003

Electrohydrostatics in pin-to-plate gas discharge system

Kawamoto, H., Umezu, S., Koizumi, R. & Shiraishi, J., 2003 Feb, In : Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C. 69, 2, p. 328-334 7 p.

Research output: Contribution to journalArticle

Open Access