Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11705847 | Drive device for AC motor, compressor drive device, and refrigeration cycle device | Kenji Takahashi, Yuki TANIYAMA, Hiroyuki Kamiko | 2023-07-18 |
| 8519652 | Control apparatus for electric rotating machine | Masato Ito, Yoshihiko Kimpara | 2013-08-27 |
| 7791911 | Inverter device which maintains voltage during input voltage drop | Satoshi Azuma | 2010-09-07 |
| 7436144 | Inverter apparatus | Manabu Yoshimura | 2008-10-14 |
| 7426122 | Power-converter control apparatus employing pulse width modulation and adjusting duration of a zero-voltage vector | Masahiro Kimata, Akira Imanaka | 2008-09-16 |
| 7161324 | Device for estimating pole position of synchronous motor | Akira Satake, Yoshihiko Kinpara | 2007-01-09 |
| 7042193 | Control apparatus for rotating machine | Yoshihiko Kinpara, Shinichi Furutani | 2006-05-09 |
| 6979975 | Rotation state detecting apparatus of a synchronous machine | Yoshihiko Kinpara | 2005-12-27 |
| 6933701 | Control apparatus for synchronous motor | Yoshihiko Kinpara | 2005-08-23 |
| 6825637 | System for controlling synchronous motor | Yoshihiko Kinpara | 2004-11-30 |
| 6791293 | Sensorless control device for synchronous electric motor | — | 2004-09-14 |
| 6400118 | Magnetic-pole position detecting apparatus for a synchronous motor | Yoshihiko Kinpara | 2002-06-04 |
| 6344725 | Method and apparatus for controlling a synchronous motor | Yoshihiko Kinpara, Naoki Nishiguchi, Katsushi Kobayashi | 2002-02-05 |
| 6335871 | Motor operation controller and insulation type bidirectional DC voltage converter | Hirofumi Kita, Masahiro Kimata, Yoshitaka Ohnishi | 2002-01-01 |
| 6259226 | Controller for AC motor | Tetsuaki Nagano, Tsutomu Kazama, Masanori Ozaki, Fumio Kumazaki | 2001-07-10 |
| 6066934 | Induction motor controller | Tetuaki Nagano, Akira Imanaka, Yasuhiro Shiraishi | 2000-05-23 |
| 5329088 | Electrical discharge power supply circuit | Toshiharu Adachi | 1994-07-12 |