Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5833563 | Automatic hydraulic tensioner | Toshio Takeda, Katsumi Hirabayashi, Shinji Kazaoka | 1998-11-10 |
| 5630767 | Auto-tensioner | Katsumi Hirabayashi | 1997-05-20 |
| 5104359 | Tensioner with reduced rattling | Eiji Shirai, Yoshio Okabe | 1992-04-14 |
| 4925436 | Tensioner | Masaharu Hayashi, Hisashi Kodama, Yoshio Okabe, Eiji Shirai | 1990-05-15 |
| 4911680 | Hermetically sealed autotensioner | Hisashi Kodama, Yoshio Okabe | 1990-03-27 |
| 4858572 | Device for adjusting an angular phase difference between two elements | Eiji Shirai, Yoshio Okabe | 1989-08-22 |
| 4798563 | Self-contained type automatic belt tensioner | Yoshio Okabe, Makoto Ishikawa, Tamotsu Kamiya, Tomiaki Atsumi | 1989-01-17 |
| 4790796 | Free piston type auto-tensioner | Yoshio Okabe, Eiji Shirai | 1988-12-13 |
| 4770137 | Cylinder control device for variable-cylindered engine | Yoshio Okabe | 1988-09-13 |
| 4615307 | Hydraulic valve lifter for variable displacement engine | Hisashi Kodama | 1986-10-07 |