Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6830840 | Operation method for polymer electrolytic fuel cell | Kazuhito Hatoh, Osamu Sakai, Hideo Ohara, Junji Niikura, Hisaaki Gyoten +1 more | 2004-12-14 |
| 6818339 | Polymer electrolyte type fuel cell | Yasushi Sugawara, Hisaaki Gyoten, Makoto Uchida, Eiichi Yasumoto, Junji Morita +6 more | 2004-11-16 |
| 6746793 | Polymer electrolyte fuel cell | Hisaaki Gyoten, Eiichi Yasumoto, Kazuhito Hatoh, Makoto Uchida, Yasushi Sugawara +6 more | 2004-06-08 |
| 6713213 | Non-aqueous electrolyte secondary battery with an organic magnesium electrolyte compound | Shuji Ito, Osamu Yamamoto, Hiromu Matsuda | 2004-03-30 |
| 6689504 | Fuel cell stack with separator of a laminate structure | Toshihiro Matsumoto, Kazuhito Hatoh, Hisaaki Gyoten, Hideo Ohara, Kazufumi Nishida | 2004-02-10 |