Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886141 | Four wheel drive vehicle | Tetsuji Muto, Tetsuro Hamada, Katsuhiko Masuda, Kazuhiko Shimada, Kazunori Shibuya | 1989-12-12 |
| 4878566 | Method and mechanism for selectively transmitting and interrupting delivery of power | Tetsuro Hamada, Katsuhiko Masuda, Kazunori Shibuya, Kazuhiko Shimada, Etsuo Fujii +1 more | 1989-11-07 |