Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11251449 | Redox flow battery system | — | 2022-02-15 |
| 10363588 | Extrusion apparatus | Tomohiro Hayashi, Yoshiyuki Futamata | 2019-07-30 |
| 9640813 | Cell frame, cell stack, and redox flow battery | Keiji Yano, Takahiro Kumamoto | 2017-05-02 |
| 9136911 | Power line communication device, power supply circuit with communication function, electric appliance, and control and monitoring system | Takashi Hikihara, Tsuguhiro Takuno, Kenichi Hirotsu, Takefumi Shimoguchi, Takashi Tsuno +1 more | 2015-09-15 |
| 7196267 | Electrically insulating resin composition and a DC electric wire or cable both coated therewith | Yoitsu Sekiguchi, Ken-ichi Hirotsu, Tsuyoshi Uozumi, Hirofumi Hirota | 2007-03-27 |
| 6915045 | Optical waveguide type grating element, production method thereof, multiplexer/demultiplexer module, and optical transmission system | Ken Hashimoto, Manabu Shiozaki, Akira Inoue | 2005-07-05 |
| 6898002 | Optical device, optical module, optical amplifier, and optical transmission system | Masayuki Shigematsu, Kenichiro Takahashi, Tomomi Sano, Akira Inoue | 2005-05-24 |
| 6804437 | Diffraction grating device manufacturing method, diffraction grating device manufacturing apparatus, and diffraction grating device | Kiyotaka Murashima, Ken Hashimoto, Akira Inoue, Masaki Ohmura, Masakazu Shigehara | 2004-10-12 |
| 6597849 | Optical fiber and optical component including the same | Shinji Ishikawa, Ken Hashimoto | 2003-07-22 |