Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890024 | Low-speed high-torque motor | Ichiro Hashimoto, Kosho Ishizaki, Hiroshi Hayashida | 1989-12-26 |
| 4880474 | Method and apparatus for operating vacuum cleaner | Haruo Koharagi, Kazuo Tahara, Tsunehiro Endo, Yoshitaro Ishii, Fumio Jyoraku +5 more | 1989-11-14 |
| 4874053 | Torque detecting apparatus | Hiroshi Kimura, Shotaro Naito, Yasuo Noto, Noboru Sugiura, Tadashi Takahashi +5 more | 1989-10-17 |
| 4857786 | Structure of stepping motor and method of driving the stepping motor | Hideki Nihei, Kouichi Saitoh, Seizi Yamashita | 1989-08-15 |
| 4855652 | Speed control apparatus for a brushless direct current motor | Koujirou Yamashita, Stunehiro Endo, Susumu Kashiwazaki, Kenichi Iizuka | 1989-08-08 |
| 4818939 | Apparatus for magnetically detecting position or speed or moving body utilizing bridge circuit with series connected MR elements | Tadashi Takahashi, Seizi Yamashita, Syooichi Kawamata | 1989-04-04 |