Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4755728 | Single-phase semiconductor electric motor and fan using the same | — | 1988-07-05 |
| 4712003 | Blind person guide device | Yuji Mitsuta | 1987-12-08 |
| 4698563 | Semiconductor electric motor having a rotary transformer to excite a rotor | — | 1987-10-06 |
| 4648710 | Blind guide device | Toshiyuki Kii, Yuji Mitsuta | 1987-03-10 |
| 4645991 | Apparatus for removing torque ripples in direct-current motors | Akihiro Nakajima | 1987-02-24 |
| 4612486 | Semiconductor electric motor having a rotary transformer to excite a rotor | Akihiro Nakajima | 1986-09-16 |
| 4583016 | Direct current motor | Manabu Shiraki, Kazuhito Egami | 1986-04-15 |
| 4546294 | Apparatus for removing torque ripples in a direct current motor | Akihiro Nakajima | 1985-10-08 |
| 4460933 | Mode changeover apparatus for magnetic recorder/player | — | 1984-07-17 |
| 4447751 | Direct current motor | Manabu Shiraki, Kazuhito Egami | 1984-05-08 |
| 4437029 | Direct current motor | Manabu Shiraki, Kazuhito Egami | 1984-03-13 |
| 4433362 | Remotely controllable illumination apparatus | — | 1984-02-21 |
| 4404485 | Direct current motor | Manabu Shiraki, Kazuhito Egami | 1983-09-13 |
| 4382214 | Direct current motor | Manabu Shiraki | 1983-05-03 |
| 4369388 | Direct current motor with non-superposed armature windings | Manabu Shiraki, Hideo Okada, Kazuhito Egami | 1983-01-18 |
| 4342884 | Piston unit | Hidenori Kanno | 1982-08-03 |
| 4315177 | Direct current motor with non-superposed armature windings | Manabu Shiraki, Kazuhito Egami | 1982-02-09 |
| 4315178 | Direct current motor with non-superposed armature windings | Manabu Shiraki, Kazuhito Egami | 1982-02-09 |
| RE30761 | Three-phase DC motor having non-superimposed armature coils | Manabu Shiraki | 1981-10-06 |
| 4290685 | Remote control device for camera | — | 1981-09-22 |
| 4243902 | Direct current motor with non-superposed armature windings | Manabu Shiraki, Kazuhito Egami | 1981-01-06 |
| 4227107 | Direct current motor with double layer armature windings | Manabu Shiraki, Kazuhito Egami | 1980-10-07 |
| 4224650 | Cartridge ejecting apparatus for magnetic tape players | Hidenori Kanno | 1980-09-23 |
| 4197475 | Direct current motor with double layer armature windings | Manabu Shiraki, Kazuhito Egami | 1980-04-08 |
| 4187522 | Magnetic tape player comprising electromagnetic latch device | Hidenori Kanno | 1980-02-05 |