Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870942 | Diagnosis device for exhaust gas recycling device of internal combustion engine | Norio Shibata, Hideaki Mizuno, Kouichi Satoya, Tatsuyoshi Kamohara, Kenichi Harada +3 more | 1989-10-03 |
| 4819601 | Diagnostic system of an air-fuel ratio control device | Kenichi Harada, Tatuyoshi Kamohara, Koichi Satoya, Takashi Kato | 1989-04-11 |