Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10064316 | Vehicular power conversion device | Yoshitaka Ono, Yu Taketomi | 2018-08-28 |
| 9806691 | Filter device and electric-vehicle drive controller | Ryo Yokozutsumi, Takushi Jimichi, Tsuguhiro Takuno, Yudai Yoneoka | 2017-10-31 |
| 9764750 | Apparatus and method of reducing slip/slide of railcar | Yuta Yoshimatsu, Takafumi Okamoto, Katsuya Ihara, Shuhei Matsumoto, Satoru Dairiki | 2017-09-19 |
| 9271432 | Power conversion device with reduced noise source current, reduced high frequency current and reduced resonance current | Ryo Yokozutsumi, Takushi Jimichi, Satoshi Azuma, Yasuhiro Shiraki | 2016-02-23 |
| 9178450 | Control device and control method for electric motor, and motor and vehicle driving system to which the control device and control method are applied | Ryo Yokozutsumi | 2015-11-03 |
| 8988909 | Power conversion device | — | 2015-03-24 |
| 8225854 | Heat sink and cooling unit using the same | Shigetoshi Ippoushi, Akira Yamada, Takeshi Tanaka, Kazuyoshi Toya, Hideo Okayama | 2012-07-24 |
| 8107241 | Electric power conversion apparatus including cooling units | Tetsuya Takahashi, Kazuyoshi Toya, Yasushi Nakayama, Shigetoshi Ipposhi, Kenichi Hayashi | 2012-01-31 |
| 7881086 | Power conversion device and fabricating method for the same | Yasushi Nakayama, Takeshi Oi, Kazuyoshi Toya | 2011-02-01 |
| 6583976 | Power semiconductor device | Takeshi Tanaka | 2003-06-24 |