Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6830840 | Operation method for polymer electrolytic fuel cell | Osamu Sakai, Hideo Ohara, Junji Niikura, Hisaaki Gyoten, Toshihiro Matsumoto +1 more | 2004-12-14 |
| 6790552 | Polymer electrolyte fuel cell | Susumu Kobayashi, Masato Hosaka, Hikaru Murakami, Mikio Takezawa, Takayuki Onishi | 2004-09-14 |
| 6770396 | Polymer electrolyte fuel cell | Hiroki Kusakabe, Hideo Ohara, Susumu Kobayashi, Tatsuto Yamazaki, Nobuhiro Hase +1 more | 2004-08-03 |
| 6746793 | Polymer electrolyte fuel cell | Hisaaki Gyoten, Eiichi Yasumoto, Makoto Uchida, Yasushi Sugawara, Teruhisa Kanbara +6 more | 2004-06-08 |
| 6689504 | Fuel cell stack with separator of a laminate structure | Toshihiro Matsumoto, Hisaaki Gyoten, Hideo Ohara, Kazufumi Nishida, Teruhisa Kanbara | 2004-02-10 |