Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6879234 | Semiconductor integrated circuit | Masayuki Furumiya, Ryota Yamamoto, Hiroaki Ohkubo, Yasutaka Nakashiba | 2005-04-12 |
| 5315219 | Driving circuit for direct-current (DC) motor | — | 1994-05-24 |
| 4725876 | Semiconductor device having at least two resistors with high resistance values | — | 1988-02-16 |
| 4345189 | Motor rotation speed control circuit | Hirokazu Kukaya | 1982-08-17 |
| 4227127 | Motor speed control circuit having improved starting characteristics | Hirokazu Fukaya | 1980-10-07 |