Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6770396 | Polymer electrolyte fuel cell | Kazuhito Hatoh, Hiroki Kusakabe, Hideo Ohara, Susumu Kobayashi, Tatsuto Yamazaki +1 more | 2004-08-03 |
| 6740443 | Polymer electrolyte fuel cell | Tatsuto Yamazaki, Yoshiaki Yamamoto, Hiroki Kusakabe, Hideo Ohara, Nobuhiro Hase | 2004-05-25 |