Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4955128 | Method for inserting rotor of electric motor | Masatoyo Sogabe | 1990-09-11 |
| 4714852 | Permanent-magnet field synchronous motor | Shigeki Kawada, Yoichi Amemiya, Masatoyo Sogabe | 1987-12-22 |