Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810842 | Frame assembly for mounting wiring devices to panel | Toshiyuki Masuda, Osamu Yamada | 1989-03-07 |
| 4780872 | Remote supervisory and controlling system | Toshiyuki Masuda, Osamu Yamada, Akihiko Hamada | 1988-10-25 |