Koiwai; Yutaka
Patent Applications and Registrations
Patent applications and USPTO patent grants for Koiwai; Yutaka.The latest application filed is for "driving circuit for dc motor".
- Koiwai; Yutaka - Tokyo JP
| Patent | Date |
|---|---|
| Driving circuit for DC motor Grant 4,362,976 - Fujioka , et al. December 7, 1 | 1982-12-07 |
| Induction motor drive apparatus Grant 4,327,315 - Kawada , et al. April 27, 1 | 1982-04-27 |
| Induction motor drive apparatus Grant 4,322,671 - Kawada , et al. March 30, 1 | 1982-03-30 |
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