Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4423293 | Microphone holding device | Masato Murayama | 1983-12-27 |
| 4392243 | Transceiver having interphone system | Shiro Ohhashi, Fumiyoshi Ubusawa, Shoji Iwasaki | 1983-07-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4423293 | Microphone holding device | Masato Murayama | 1983-12-27 |
| 4392243 | Transceiver having interphone system | Shiro Ohhashi, Fumiyoshi Ubusawa, Shoji Iwasaki | 1983-07-05 |