Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8223517 | Power converting apparatus with main converter and sub-converter | Yukimori Kishida, Akihiko Iwata, Shinichi Ogusa, Akira Imanaka | 2012-07-17 |
| 8138693 | Vibration isolation control system | Kei Terada, Kiyoshi Maekawa, Emiko Hayasaka | 2012-03-20 |
| 7671553 | Servo controller | Kei Terada, Kazutaka Takahashi, Takashi Isoda | 2010-03-02 |
| 7560890 | Position controller and controlling method therefor | Kei Terada, Masahiko Yoshida, Hidetoshi Ikeda | 2009-07-14 |
| 7511448 | Motor control device | Kei Terada, Yasunobu Harada, Kazutaka Takahashi | 2009-03-31 |
| 6809492 | Speed control device for AC electric motor | Masaya Harakawa | 2004-10-26 |
| 6259226 | Controller for AC motor | Toshiyuki Kaitani, Tsutomu Kazama, Masanori Ozaki, Fumio Kumazaki | 2001-07-10 |
| 5886491 | Position control unit for electric motor | Masahiko Yoshida, Fumio Kumazaki | 1999-03-23 |
| 5652491 | Position controller for an electric motor | Yasushi Ikawa, Masanori Ozaki, Shizuo Kumekawa, Fumio Kumazaki | 1997-07-29 |
| 5646492 | Electric motor controller having independent responses to instructions and external disturbances | Seisuke Tsutsumi | 1997-07-08 |
| 5432422 | Method and apparatus for controlling the positioning and reducing vibration in a machine tool system | Yasuhiko Iwai, Masato Koyama | 1995-07-11 |
| 5428285 | Position controller for controlling an electric motor | Masato Koyama | 1995-06-27 |
| 5404418 | Closed-loop feedback control system having an adaptive filter | — | 1995-04-04 |
| 5160878 | Induction motor controller providing temperature compensation | — | 1992-11-03 |