Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7380797 | Wheel support bearing assembly | Kazunari Yamamoto, Hiedeo Shinagawa | 2008-06-03 |
| 6083131 | Hydraulic autotensioner | Yoshikazu Hida | 2000-07-04 |
| 6036612 | Hydraulic autotensioner unit having an external spring encircling an actuator cylinder | Yoshikazu Hida | 2000-03-14 |
| 5702317 | Autotensioner | Kazuki Kawashima, Yoshikazu Hida | 1997-12-30 |
| 5032094 | Tilt-trim system for outboard motors | — | 1991-07-16 |