Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8419298 | Drive mechanism, blade drive mechanism and optical device | Hisashi Kawamoto | 2013-04-16 |
| 5065153 | Contention control system | Eizo Tomita | 1991-11-12 |
| 5025891 | Escape for a building | Hiromitsu Naka, Shouzi Naka | 1991-06-25 |