Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4566803 | Power source off delay timer with liquid crystal display | Hiroshi Sato, Isao Nanba | 1986-01-28 |
| 4440503 | Electronic timer | Isao Arichi, Takuji Koh | 1984-04-03 |
| 4407588 | Electronic oscillation counting timer | Isao Arichi, Takuji Koh | 1983-10-04 |