Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5222792 | Opening/closing device of a door member | Hiroshi Kamikubo | 1993-06-29 |
| 5064255 | Opening/closing device of a door member | Yoshio Inui, Masayoshi Osaka, Mitsuo Tanaka, Masao Miyamoto, Tooru Hasegawa +2 more | 1991-11-12 |