Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12103594 | Vehicle | Hyuga Atsumi | 2024-10-01 |
| 7572537 | Fuel cell and separator for the same | Hitoshi Hamada, Shigeyuki Kawatsu, Seiji Mizuno, Joji Yoshimura | 2009-08-11 |
| 7476457 | Fuel cells system and method of controlling cells | — | 2009-01-13 |
| 7138200 | Fuel cell and separator for the same | Hitoshi Hamada, Shigeyuki Kawatsu, Seiji Mizuno, Joji Yoshimura | 2006-11-21 |
| 7087151 | Hydrogen sensor for use in battery overcharge/overdischarge detector and hydrogen leakage detector | Keigo Mizutani, Kazuhiko Yoshida, Hidetaka Hayashi, Kazuo Tojima | 2006-08-08 |
| 7060116 | Method of binding a plurality of sealed battery cells | Shuhei Marukawa, Ko Watanabe, Toyohiko Eto, Tomokazu Yamauchi, Takahiko Miki | 2006-06-13 |
| 6893771 | Battery assembly | Naoto Arai, Shinji Hamada, Munehisa Ikoma, Tomokazu Yamauchi | 2005-05-17 |
| 6656618 | Fuel cells system and method of controlling cells | — | 2003-12-02 |
| 6602636 | Battery module | Akihiro Taniguchi, Shinji Hamada, Noriyuki Fujioka, Toyohiko Eto, Munehisa Ikoma +3 more | 2003-08-05 |
| 6573685 | Method of replacing secondary battery | Toshiaki Nakanishi, Hiromichi Kuno, Tadao Kimura, Yozoh Ogino, Sadao Mizuno +4 more | 2003-06-03 |
| 6501250 | Device and method for controlling input/output of secondary battery | Seiji Bito, Yusai Murakami, Toshiaki Nakanishi, Kiwamu Inui, Kunio Kanamaru +2 more | 2002-12-31 |
| 6277511 | Fuel cell | Hitoshi Hamada | 2001-08-21 |
| 6255008 | Fuel cell system capable of reducing electric power loss | — | 2001-07-03 |
| 6245453 | Fuel cell and separator for the same | Hitoshi Hamada, Shigeyuki Kawatsu, Seiji Mizuno, Joji Yoshimura | 2001-06-12 |
| 5718984 | Method of recovering electrolyte membrane from fuel cell and apparatus for the same | Shigeyuki Kawatsu | 1998-02-17 |