Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4276528 | Electric motor-driven timer | Isamu Ohara, Tsutomu Muranaka | 1981-06-30 |
| 4187484 | Timing device utilizing a unique clutch assembly | Isamu Ohara, Tsutomu Muranaka | 1980-02-05 |