Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889353 | Direction-dependent power transmission system | Tetsuro Hamada, Kazuhiko Shimada, Kazunori Shibuya | 1989-12-26 |
| 4886141 | Four wheel drive vehicle | Hiroshi Ikegami, Tetsuji Muto, Tetsuro Hamada, Kazuhiko Shimada, Kazunori Shibuya | 1989-12-12 |
| 4878566 | Method and mechanism for selectively transmitting and interrupting delivery of power | Tetsuro Hamada, Kazunori Shibuya, Kazuhiko Shimada, Etsuo Fujii, Hiroshi Ikegami +1 more | 1989-11-07 |
| 4848507 | Torque-dependent power transmission system | Kazuhiko Shimada, Tetsuro Hamada, Kazunori Shibuya | 1989-07-18 |
| 4848506 | Drive power transmission device | Kazuhiko Shimada, Tetsurou Hamada, Kazunori Shibuya | 1989-07-18 |
| 4829849 | Power transmission system for vehicles | Tetsuro Hamada, Kazunori Shibuya, Kazuhiko Shimada | 1989-05-16 |
| 4825724 | Differential gear | Kazunori Shibuya, Tetsuro Hamada, Kazuhiko Shimada | 1989-05-02 |