Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4745320 | Induction motor | Shigeaki Oyama, Kosei Nakamura, Yoshiyuki Hayashi | 1988-05-17 |
| 4465948 | Device for cooling a reversible motor | Shigeaki Oyama, Kosei Nakamura, Yoshiyuki Hayashi | 1984-08-14 |