Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6023401 | Abnormality detecting device for exhaust secondary air supplying system | Akira Hashimoto, Toshikazu Oketani, Yoshitaka Hibino, Masaaki Tomii, Hiroyuki Sugiura | 2000-02-08 |
| 5881552 | Control system for internal combustion engines and control system for vehicles | Yoichi Iwata, Akira Katoh, Toshikazu Oketani, Tetsu Teshirogi, Naoki Iida +1 more | 1999-03-16 |