Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833769 | Method of manufacturing armature of electric rotary machine | Yasuaki Watanabe | 1989-05-30 |
| 4823037 | DC Electric motor having field poles of permanent magnet | Toshimi Abukawa, Kazuo Tahara, Noriyoshi Takahashi | 1989-04-18 |