Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887573 | Ignition timing adjusting apparatus for internal combustion engine | Yasuhiko Fujiwara, Toshiro Abe, Atsunori Hashimoto, Shinsuke Nakazawa, Takeshi Atago | 1989-12-19 |
| 4862855 | Control apparatus for internal combustion engine | Toshio Manaka, Akira Teragakiuchi, Masahide Sakamoto, Masakatsu Fujishita, Junji Miyake | 1989-09-05 |
| 4852537 | Ignition timing control apparatus for internal combustion engine | Takeshi Atago | 1989-08-01 |
| 4825833 | Engine control apparatus | Kenji Ikeura, Yoshihisa Kawamura, Seiji Suda | 1989-05-02 |
| 4799469 | Apparatus and method for controlling ignition timing for internal combustion engine | Takeshi Atago, Toshio Manaka | 1989-01-24 |