Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7975524 | Oxygen sensor inspection method and apparatus and oxygen sensor production method | Shoichi Sakai | 2011-07-12 |
| 7302828 | Oxygen sensor | Akira Uchikawa, Masao Tsukada, Shoichi Sakai, Keiji Mori | 2007-12-04 |
| 5006221 | Oxygen concentration-detecting apparatus | Akira Uchikawa, Satoshi Anbe, Tatsumasa Yamada, Tadao Suwa | 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, Tatsumasa Yamada, Tadao Suwa | 1988-09-27 |