Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841935 | Variable air induction control system for internal combustion engine | Akira Nagao, Toyohei Nakajima, Yukihiko Suzaki, Masao Jogen, Akira Tanaka | 1989-06-27 |
| 4796586 | Method of and apparatus for controlling ignition timing in internal combustion engine | Akira Tanaka, Akira Nagao, Yukihiko Suzaki, Toyohei Nakajima, Toshiyuki Mieno | 1989-01-10 |