Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886142 | Hydraulic four-wheel drive system | Kojiro Yamaoka, Toshiro Azuma, Ryota Ohashi | 1989-12-12 |
| 4881612 | Steering apparatus for a vehicle | Shigenori Sakikawa, Toshiaki Okanishi | 1989-11-21 |
| 4838105 | Reversing gear assembly for yachts | Kazuhiko Ohtsuki, Gen Yoshii | 1989-06-13 |