Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6815109 | Fuel cell system | Takafumi Okamoto, Shuji Sato | 2004-11-09 |
| 6776032 | Misfire deciding method and misfire deciding system for internal combustion engines | Masayoshi Matsui | 2004-08-17 |
| 6713203 | Fuel cell | Shuji Sato | 2004-03-30 |