Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4947818 | Internal combustion engine with device for warning of malfunction in an air-fuel ratio control system | Tadashi Sugino, Toshio Suematsu, Satomu Nishimura | 1990-08-14 |
| 4870942 | Diagnosis device for exhaust gas recycling device of internal combustion engine | Norio Shibata, Hideaki Mizuno, Kouichi Satoya, Nobuki Uchitani, Kenichi Harada +3 more | 1989-10-03 |
| 4472321 | Altitude compensation apparatus for carburetor | Hidemi Oonaka | 1984-09-18 |