Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4422816 | Shiftable article storage device | Han-Ichiro Naito, Tsuneo Yamaguchi | 1983-12-27 |
| 4412772 | Shiftable article storage device | Han-Ichiro Naito, Tsuneo Yamaguchi | 1983-11-01 |
| 4256355 | Locking and unlocking device for manually movable wheeled storage rack or the like | Tsuneo Yamaguchi | 1981-03-17 |