Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5544004 | Pin-board matrix switch | Shuichiro Inagaki, Tadashi Hirono | 1996-08-06 |
| 5204921 | Automated optical main distributing frame system | Tsuneo Kanai, Kunihiko Sasakura, Syuichirou Inagaki, Shigeru Umemura, Hirobumi Kimura +3 more | 1993-04-20 |
| 5017145 | Matrix switching device and method of manufacturing the same | Tsuneo Kanai, Yasuo Kumakura, Shigeru Umemura, Shuichiro Inagaki | 1991-05-21 |