Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870586 | Air-fuel ratio control system for an internal combustion engine with an engine load responsive correction operation | Masahiko Asakura, Takanori Shiina, Masahiro Ueda, Shinichi Kubota, Tomohiko Kawanabe +1 more | 1989-09-26 |
| 4842711 | Device for detecting air-fuel ratio of engine | Masahiko Asakura, Tomohiko Kawanabe | 1989-06-27 |
| 4843550 | Method of indicating a shift operation of a manual gearbox of a vehicle | Tomohiko Kawanabe, Masahiko Asakura, Shin'ichi Kubota, Yukihiro Matsumoto, Yasuhisa Arai +1 more | 1989-06-27 |
| 4808269 | Method for controlling an oxygen concentration sensing device | Tomohiko Kawanabe, Masahiko Asakura, Hiroshi Hasebe, Tessho Yamada | 1989-02-28 |