Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871934 | Induction motor | Kiyokazu Okamoto, Yukio Miyamoto, Yoshiharu Suzuki | 1989-10-03 |
| 4868438 | Three-phase induction motor | Kiyokazu Okamoto, Hiroshi Iijima, Yukio Miyamoto | 1989-09-19 |
| 4841120 | Thermal head | Masamori Yagino, Masato Taniguchi, Yoshitomo Ito, Toshimitsu Takano, Wataru Ishikawa +1 more | 1989-06-20 |