Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871934 | Induction motor | Kiyokazu Okamoto, Tetsuo Endo, Yoshiharu Suzuki | 1989-10-03 |
| 4868438 | Three-phase induction motor | Kiyokazu Okamoto, Hiroshi Iijima, Tetsuo Endo | 1989-09-19 |