Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879502 | Speed control apparatus and method for motors | Tunehiro Endo, Nobuaki KATO, Fumio Tajima | 1989-11-07 |
| 4855652 | Speed control apparatus for a brushless direct current motor | Koujirou Yamashita, Stunehiro Endo, Kunio Miyashita, Susumu Kashiwazaki | 1989-08-08 |