Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4283704 | Variable resistor | Takeshi Ohtani, Susumu Nishimura, Katsuhisa Osada | 1981-08-11 |
| 4200857 | Variable resistor | Mikio Sato | 1980-04-29 |
| 4196410 | Variable resistor | Masao Kasajima | 1980-04-01 |