Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6797419 | Electronic apparatus powered by fuel cell having oxygen density detector | Hideki Tanaka, Satoshi Kazama | 2004-09-28 |
| 6748551 | Communication control system | Naoki Furudate, Shinichi Sakamoto | 2004-06-08 |