Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5006221 | Oxygen concentration-detecting apparatus | Akira Uchikawa, Satoshi Anbe, Masami Kawashima, Tatsumasa Yamada | 1991-04-09 |
| 4773376 | Oxygen gas concentration-detecting apparatus and air-fuel ratio-controlling apparatus using same in internal combustion engine | Akira Uchikawa, Satoshi Anbe, Masami Kawashima, Tatsumasa Yamada | 1988-09-27 |