Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873793 | Numerically controlled machine tool | Toshio Tsujiuchi, Takao Yoneda, Nobuhiro Ishihara, Toshio Maruyama, Norio Ohta | 1989-10-17 |
| 4821604 | Four-wheel drive system | — | 1989-04-18 |
| 4817751 | A driving force distribution transmission for vehicles with four-wheel drive | Keiichi Nakamura, Masaji Yamamoto, Shigeo Tanooka, Toshifumi Sakai | 1989-04-04 |