Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889085 | Valve operating device for internal combustion engine | Yoshihiro Fujiyoshi, Takatoshi Aoki, Yasuhiro Urata | 1989-12-26 |
| 4885944 | Torque sensor | Hideo Matsuki | 1989-12-12 |
| 4870930 | Engine valve control apparatus | — | 1989-10-03 |
| 4817444 | Torque sensor | Tsuneo Takahashi, Masayuki Nishiguchi | 1989-04-04 |