Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875450 | Ignition timing controlling device for an internal combustion engine | Haruhiko Yoshikawa | 1989-10-24 |
| 4868355 | Steering wheel segmented slip ring and contact pin assembly | Shuji Inui, Chikahisa Hayashi, Mitsuhiro Kikuta, Satoshi Ono, Yoshio Sano +2 more | 1989-09-19 |
| 4845986 | Liquid level indication device | Chikahisa Hayashi, Yoshikazu Hirose | 1989-07-11 |
| 4846128 | Ignition timing control system for internal combustion engine | Shizuo Yagi, Yoshiaki Hirosawa, Yorihisa Yamamoto, Haruhiko Yoshikawa, Kenichi Nakamura | 1989-07-11 |
| 4831878 | Structure for mounting liquid level meter | Chikahisa Hayashi, Yoshikazu Hirose, Tatsuya Terayama, Nobutsugu Miyazaki, Hideo Yamamoto | 1989-05-23 |