Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870942 | Diagnosis device for exhaust gas recycling device of internal combustion engine | Norio Shibata, Hideaki Mizuno, Kouichi Satoya, Nobuki Uchitani, Tatsuyoshi Kamohara +3 more | 1989-10-03 |
| 4826787 | Method for adhesion of silicon or silicon dioxide plate | Masaaki Muto, Takashi Ito | 1989-05-02 |
| 4819601 | Diagnostic system of an air-fuel ratio control device | Kenichi Harada, Nobuki Uchitani, Tatuyoshi Kamohara, Koichi Satoya | 1989-04-11 |