Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8941947 | Spindle motor and hard disk drive therewith | Hideaki SHOWA, Hironobu Tsuge | 2015-01-27 |
| 7262982 | Power conversion apparatus | — | 2007-08-28 |
| 6552462 | Reluctance type rotating machine with permanent magnets | Kazuto Sakai, Masanori Arata, Mikio Takabatake, Yoshio Hashidate, Yosuke Nakazawa +1 more | 2003-04-22 |
| 6342745 | Reluctance type rotating machine with permanent magnets | Kazuto Sakai, Masanori Arata, Mikio Takabatake, Yoshio Hashidate, Yosuke Nakazawa +1 more | 2002-01-29 |
| 6274960 | Reluctance type rotating machine with permanent magnets | Kazuto Sakai, Masanori Arata, Mikio Takabatake, Yoshio Hashidate, Yosuke Nakazawa +1 more | 2001-08-14 |
| 5502633 | Method and apparatus for controlling an inverter | Satoshi Miyazaki, Lazhar Ben-Brahim | 1996-03-26 |
| 5446363 | Method of controlling induction motor | Hajime Yamamoto | 1995-08-29 |
| 5361197 | Method and apparatus for controlling an inverter generating a plurality of phase voltages | Satoshi Miyazaki, Lazhar Ben-Brahim | 1994-11-01 |
| 5288956 | Self running type elevator system using linear motors | Toshio Kadokura | 1994-02-22 |
| 5250887 | Feedback controller | — | 1993-10-05 |
| 5111124 | Continuous deadbeat control system with feedback control | — | 1992-05-05 |
| 5057685 | Optical rotation detector including a disk having slits with concave and convex parts and method of manufacturing | Kozo Taira | 1991-10-15 |
| 4914365 | Control device for servo motor | Shin Murakami | 1990-04-03 |
| 4837492 | Apparatus for detecting revolution using a synchro | Kouzou Kawata | 1989-06-06 |
| 4755738 | Reactive power compensation apparatus | Takeo Shimamura, Hiroshi Uchino | 1988-07-05 |
| 4698581 | Reactive power compensation apparatus | Takeo Shimamura, Hiroshi Uchino | 1987-10-06 |
| 4675584 | Control system | — | 1987-06-23 |
| 4652989 | Frequency converter apparatus | Takeo Shimamura | 1987-03-24 |
| 4556885 | System for detecting position or speed | — | 1985-12-03 |
| 4555752 | AC Power converter with commutation circuit for reducing reactive power | — | 1985-11-26 |
| 4555755 | AC Current control system | Takeo Shimamura | 1985-11-26 |
| 4527120 | System for converting mechanical movement to a digital signal | — | 1985-07-02 |
| 4517636 | Inverter apparatus | Hiroshi Uchino, Kihei Nakajima | 1985-05-14 |
| 4475105 | System for detecting mechanical movement | — | 1984-10-02 |
| 4307346 | Phase detecting circuit | Syunichi Hirose | 1981-12-22 |