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Research Output 2003 2019

  • 348 Citations
  • 11 h-Index
  • 40 Article
  • 26 Conference contribution
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

Polishing
Machining

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 Jan 1, In : Advanced Materials. 1808033.

Research output: Contribution to journalArticle

Substrates
Polyimides
Conversion efficiency
Textiles
Skin
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

Tin oxides
Fluorine
Titanium dioxide
solar cells
anatase
1 Citation (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

Carbon fiber reinforced plastics
Thermal insulation
Rigidity
Shear strength
Temperature
2018
1 Citation (Scopus)

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

Suzuki, Y., Takagishi, K. & Umezu, S., 2018 Jan 1, (Accepted/In press) In : Journal of Food Process Engineering. e12934.

Research output: Contribution to journalArticle

Electrostatic printing
printers
Printing
chocolate
Static Electricity
1 Citation (Scopus)

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

Oxides
Conversion efficiency
metal oxides
Cathodes
cathodes

Highly Efficient Planar Perovskite Solar Cells Exploiting a Compact TiO/Anatase TiO Single Crystalline Nanoparticles Electron Transport Bilayer

Shahiduzzaman, M., Ashikawa, H., Kuniyoshi, M., Kaneko, T., Umezu, S., Katsumata, T., Iwamori, S., Taima, T., Kakihana, M., Isomura, M. & Tomita, K., 2018 Nov 26, 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC. Institute of Electrical and Electronics Engineers Inc., p. 512-517 6 p. 8548216

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Spray pyrolysis
Spin coating
Titanium dioxide
Nanoparticles
Crystalline materials

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

Flexible electronics
Action Potentials
Biocompatibility
Silver
Thick films
3 Citations (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

printers
air transportation
Ink
chocolate
Printing
20 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

Thermodynamic stability
Fullerenes
Thiophenes
Microstructure
Thermal stress
23 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 Jan 1, (Accepted/In press) In : Advanced Materials.

Research output: Contribution to journalArticle

Photodetectors
Skin
Infrared radiation
Optoelectronic devices
Sensors
2017
15 Citations (Scopus)

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

3D printers
Melting
Resins
Surface roughness
Processing

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

Alginate
gelatins
Gels
gels
tubes
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

3D printers
Gelatin
Plate metal
Temperature control
Scaffolds

Thermal response and recession resistance of new thermal protection system using high-temperature CFRP sandwich panel

Miyamoto, O., Kubota, Y., Aoki, T., Ishida, Y., Ogasawara, T. & Umezu, S., 2017 Jan 1, 68th International Astronautical Congress, IAC 2017: Unlocking Imagination, Fostering Innovation and Strengthening Security. International Astronautical Federation, IAF, Vol. 12. p. 7941-7947 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

recession
thermal protection
carbon fiber reinforced plastics
Carbon fiber reinforced plastics
weight reduction
2016
2 Citations (Scopus)

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

Micro air vehicle (MAV)
Feathers
Birds
Air
Research Personnel

Control of titania layer of Dye-Sensitized Solar Cell (DSC)

Nakamura, Y., Takamori, K., Kunugi, Y., Iwamori, S. & Umezu, S., 2016, 32nd International Conference on Digital Printing Technologies, NIP 2016 - Technical Program and Proceedings. Society for Imaging Science and Technology, p. 370-373 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Titanium
Fabrication
Dye-sensitized solar cells
Electrostatics
Nozzles
1 Citation (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

Gelatin
Fabrication
Fibers
Blood vessel prostheses
Bioelectric potentials

Finishing processes of Fused Deposition Modeling (FDM) 3D printer

Takagishi, K. & Umezu, S., 2016, 32nd International Conference on Digital Printing Technologies, NIP 2016 - Technical Program and Proceedings. Society for Imaging Science and Technology, p. 10-13 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3D printers
Processing
Surface roughness

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

Electromagnetic Phenomena
Cell growth
Nutrition
Flow control
Cell Movement
2015
2 Citations (Scopus)

Fabrication and mechanical properties of C/C-HfC-SiC composites

Yano, Y., Wada, K., Aoki, T., Ogasawara, T. & Umezu, S., 2015, Key Engineering Materials. Trans Tech Publications Ltd, Vol. 625. p. 657-661 5 p. (Key Engineering Materials; vol. 625).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hafnium
Fabrication
Mechanical properties
Composite materials
Oxidation resistance
1 Citation (Scopus)

Fabrication of comb shape of leading edge wing of dragonfly

Umezu, S., Tanabe, N. & Hashimoto, H., 2015, Key Engineering Materials. Trans Tech Publications Ltd, Vol. 625. p. 182-186 5 p. (Key Engineering Materials; vol. 625).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fabrication
Micro air vehicle (MAV)
Cones
Aerodynamics
Microstructure

Fundamental characteristics on nano porous titania layer of dye-sensitized solar cell (DSC) utilizing electrostatic 3D printer

Ogawa, M., Kunugi, Y., Iwamor, S. & Umezu, S., 2015, International Conference on Digital Printing Technologies. Society for Imaging Science and Technology, Vol. 2015-January. p. 201-203 3 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3D printers
Electrostatics
Titanium
Nozzles
Printers (computer)
2014
9 Citations (Scopus)

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

Scaffolds
Printing
Artificial organs
Blood vessels
Biomaterials
11 Citations (Scopus)

Precision printing of gelatin utilizing electrostatic inkjet

Umezu, S., 2014, In : Japanese Journal of Applied Physics. 53, 5 SPEC. ISSUE 3, 05HC01.

Research output: Contribution to journalArticle

gelatins
Biomaterials
printing
Printing
Electrostatics
5 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, In : Japanese Journal of Applied Physics. 53, 5 SPEC. ISSUE 3, 05HA08.

Research output: Contribution to journalArticle

Electrostatic printing
printing
sprayers
counters
solar cells
2013
12 Citations (Scopus)

Dye-sensitized solar cell utilizing electrostatic inkjet

Umezu, S., Kunugi, Y. & Ohmori, H., 2013 May, In : Japanese Journal of Applied Physics. 52, 5 PART 2, 05DC23.

Research output: Contribution to journalArticle

Electrostatics
titanium
Titanium
solar cells
dyes
3 Citations (Scopus)

Fabrication of dye-sensitized solar cells using electrostatic inkjet printing

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

Research output: Contribution to journalArticle

Electrostatic printing
Fabrication
Dye-sensitized solar cells
15 Citations (Scopus)

Fundamental characteristics of bioprint on calcium alginate gel

Umezu, S., Hatta, T. & Ohmori, H., 2013 May, In : Japanese Journal of Applied Physics. 52, 5 PART 2, 05DB20.

Research output: Contribution to journalArticle

Alginate
calcium
Calcium
Gels
gels

Optimization of titania thickness of dye-sensitized solar cell(DSC) utilizing patterning with electrostatically-injected droplet (PELID) method

Kosugi, K., Shimoyama, Y., Umezu, S., Kunugi, Y. & Ohmorri, H., 2013, International Conference on Digital Printing Technologies. p. 36-39 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Titanium
Tin oxides
Fluorine
Glass
Fabrication

Robot arm printer of electrostatic inkjet

Kawata, S. & Umezu, S., 2013, International Conference on Digital Printing Technologies. p. 190-193 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electrostatics
Robots
Environmental technology
Biotechnology
Printing
2012
12 Citations (Scopus)

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

Umezu, S., 2012, (Accepted/In press) In : Artificial Life and Robotics. p. 1-4 4 p.

Research output: Contribution to journalArticle

Collagen
Artificial organs
Scaffolds (biology)
Tissue engineering
Scaffolds

Core technologies on roll-to-roll printed electronics

Hashimoto, H. & Umezu, S., 2012 Aug, In : Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering. 78, 8, p. 674-677 4 p.

Research output: Contribution to journalArticle

Electronic equipment

Digital fabrication of 3D bio devices utilizing PELID (Patterning with Electrostatically-Injected Droplet) method

Umezu, S., Hatta, T. & Ohmori, H., 2012, International Conference on Digital Printing Technologies. p. 338-340 3 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Caves
Fabrication
Scaffolds
Printing
Liquids

Fabrication of artifical biomimetic wing of dragonfly and its aerodynamic effect

Umezu, S., Hashimoto, H. & Ohmori, H., 2012, Proceedings of the 12th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2012. euspen, Vol. 2. p. 473-476 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

biomimetics
Biomimetics
aerodynamics
wings
Aerodynamics
2011

Fabrication of dye-sensitised solar cell utilizing PELID (Patterning with Electrostatically-Injected Droplet) method

Umezu, S., Kunugi, Y., Ohmori, H., Yano, Y., Fukasawa, A., Tokunaga, S. & Ishii, A., 2011, Proceedings of the 11th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2011. euspen, Vol. 2. p. 522-525 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fluorine
tin oxides
solar cells
dyes
fluorine
29 Citations (Scopus)

Fundamental characteristics of printed cell structures utilizing electrostatic inkjet phenomena

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

Research output: Contribution to journalArticle

Electrostatics
electrostatics
Liquids
cells
Electric potential

Fundamental characteristics on patterning TiO 2 of dye-sensitized solar cell utilizing PELID (Patterning with Electrostatically-Injected Droplet) method

Umezu, S., Kunugi, Y., Yukimoto, T., Fukasawa, A. & Ohmori, H., 2011, International Conference on Digital Printing Technologies. p. 659-661 3 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Titanium
Tin oxides
Fluorine
Glass
Fabrication
2010

Fabrication of solar cell utilizing digital fabrication technology

Umezu, S., Kunugi, Y., Yuya, Y., Fukasawa, A., Tokunaga, S., Ishii, A., Azetsu, A. & Ohmori, H., 2010, Conference on Optoelectronic and Microelectronic Materials and Devices, Proceedings, COMMAD. p. 123-124 2 p. 5699693

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Solar cells
Fabrication
Glass
Liquids

Gelatin patterning utilizing Electrostatically-Injected Droplet (ELID) method

Umezu, S., Kawanishi, M., Katsumi, Y., Kitajima, T., Sakuragi, M., Ohmori, H. & Ito, Y., 2010, International Conference on Digital Printing Technologies. p. 561-563 3 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Scaffolds
Cells
Capillary tubes
Plate metal
Electric potential

Precision micro-fabrication by gelatin patterning with electrostatically-injected droplet (ELID) method

Umezu, S., Kawanishi, M., Ohmori, H., Kitajima, T. & Ito, Y., 2010, Proceedings of the 10th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2010. euspen, Vol. 2. p. 404-407 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Microfabrication
gelatins
Gelatin
fabrication
Liquids
2009
3 Citations (Scopus)

Fabrication of living cell structure utilizing electrostatic inkjet phenomena

Umezu, S., Kitajima, T., Murase, H., Ohmori, H., KatahiraK. & Ito, Y., 2009, Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS). p. 419-422 4 p. 4805408

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electrostatics
Cells
electrostatics
Fabrication
fabrication

Fundamental characteristics of printed cell structures utilizing micro-drop injection

Umezu, S., Kitajima, T., Ohmori, H. & Ito, Y., 2009, International Conference on Digital Printing Technologies. p. 407-410 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Printing
Liquids
Cells
Capillary tubes
Plate metal

Manufacture of cell fusion device utilizing mechanical fabrication and FIB fabrication

Umezu, S., Naruse, T., Gong, J. S., Ohmori, H., Ito, Y. & Katahira, K., 2009, Proceedings of the 9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009. euspen, Vol. 1. p. 297-300 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

mechanical devices
Focused ion beams
Fusion reactions
fusion
ion beams
2008
23 Citations (Scopus)
electric corona
Ozone
Static Electricity
fans
ozone
4 Citations (Scopus)

New fabrication techniques utilizing electrostatic inkjet phenomena

Umezu, S., Katahira, K., Ohmori, H. & Kawamoto, H., 2008, Proceedings of the 10th Anniversary International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2008. euspen, Vol. 2. p. 443-447 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

metal plates
Electrostatics
Plate metal
electrostatics
Fabrication

New micro fabrication techniques utilizing electrostatic inkjet phenomena

Umezu, S., Katahira, K. & Ohmori, H., 2008, International Conference on Digital Printing Technologies. p. 287-290 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Microfabrication
Electrostatics
Capillary tubes
Plate metal
Electrodes
2007
electric corona
fans
Ozone
ozone
Fans
6 Citations (Scopus)

Development of electrostatic paper separation and feed mechanism

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

Research output: Contribution to journalArticle

Static Electricity
rollers
Electrostatics
Electrodes
electrostatics
3 Citations (Scopus)

Force at spark discharge in pin-to-plate system

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

Research output: Contribution to journalArticle

electric sparks
Vibration
Electric sparks
sparks
vibration