Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4286159 | Detector coupling mechanism | Shinichi Aizawa, Hiroshi Sawa | 1981-08-25 |
| 4247848 | Fire detector with a monitor circuit | Yukio Yamauchi | 1981-01-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4286159 | Detector coupling mechanism | Shinichi Aizawa, Hiroshi Sawa | 1981-08-25 |
| 4247848 | Fire detector with a monitor circuit | Yukio Yamauchi | 1981-01-27 |