Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6523340 | Method and apparatus for diagnosing engine exhaust gas purification system | Nobuo Kurihara, Hiroshi Kimura, Yutaka Takaku | 2003-02-25 |
| 6520168 | Air-fuel ratio controller for engine | Yutaka Takaku | 2003-02-18 |
| 6502388 | Engine exhaust gas cleaning system | Yutaka Takaku, Shigeru Kawamoto, Shinji Nakagawa, Minoru Oosuga, Yoshihisa Fujii | 2003-01-07 |
| 6502541 | Control system for direct fuel injection engine | Matsuharu Abo, Yoshiyuki Tanabe, Koji Onishi, Hiroshi Fujii | 2003-01-07 |