Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5877820 | Optical transmission of signals | Toshikatsu Yamamuro, Tadashi Ezaki | 1999-03-02 |
| 5621659 | Central control device and operation devices | Kazutoshi Matsumoto, Hatsuhiko Shinoda, Yosuke Yukihira | 1997-04-15 |