Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5640847 | Catalyst deterioration diagnosis system for internal combustion engine | Yuki Nakajima | 1997-06-24 |
| 5119628 | Catalyst degradation diagnosing apparatus for air fuel ratio control system | Kohei Mitsuhashi, Masaaki Uchida, Yuki Nakajima | 1992-06-09 |
| 5050083 | System and method for controlling air/fuel mixture ratio for internal combustion engine | Masaaki Uchida, Fumio Yukawa, Kunifumi Sawamoto, Toyaki Nakagawa, Naoki Nakada | 1991-09-17 |
| 4924836 | Air/fuel ratio control system for internal combustion engine with correction coefficient learning feature | Masaaki Uchida, Hiromichi Miwa, Yoshihisa Kawamura | 1990-05-15 |