Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416097 | Gallium arsenide single crystal substrate and method of manufacturing same | Makoto Kiyama, Yoshihiro Saito, Yutaka HOSHINA | 2025-09-16 |
| 5257852 | Damper device for an automatic folding chair | Ken Tsuneki, Kazuyosh Ohshima | 1993-11-02 |
| 5175891 | Device for fixing a toilet seat and a toilet lid | Kazuyoshi Ohshima | 1993-01-05 |
| 5109571 | Door hinge with movable and fixed cams | Kazuyoshi Ohshima | 1992-05-05 |
| 5011029 | Coat lift hanger | Seiji Sugasawara, Ken Tsuneki, Kazuyoshi Ohshima, Tatsuya Hayakawa, Seiichiro Tamura | 1991-04-30 |