Issued Patents All Time
Showing 26–45 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8643316 | Power conversion device | Sho Kato | 2014-02-04 |
| 8593094 | Power conversion apparatus of electric vehicle | Keita Hatanaka | 2013-11-26 |
| 8547713 | Power conversion system | Takahiko Kobayashi, Keita Hatanaka | 2013-10-01 |
| 8542502 | Electrical power conversion apparatus | Keita Hatanaka | 2013-09-24 |
| 8488344 | Electrical power conversion apparatus including a control microprocessor for eliminating or curbing a beat phenomenon | Takahiko Kobayashi, Keita Hatanaka | 2013-07-16 |
| 8279641 | Electric power conversion apparatus having frequency fixing unit to control beat phenomenon | Syoichi Kawamoto, Daisuke Ito, Hidetoshi Kitanaka, Keita Hatanaka, Hisanori Yamasaki +1 more | 2012-10-02 |
| 8154240 | Control apparatus for electric railcar | Hideto Negoro | 2012-04-10 |
| 8045345 | Power converting apparatus | — | 2011-10-25 |
| 8022659 | Control apparatus for AC rotary machine and control method for AC rotary machine | Hiroyuki Kayano, Tsuneyasu Kakizaki | 2011-09-20 |
| 8022660 | Control apparatus for AC rotary machine | Yoshihiko Kinpara, Kiyoshi Eguchi, Keita Hatanaka, Mitsuo Kashima, Kouichi Arisawa | 2011-09-20 |
| 7990099 | Power converting device for electric train | Keita Hatanaka | 2011-08-02 |
| 7982421 | Electric vehicle controller | Hideto Negoro | 2011-07-19 |
| 7960926 | Controller for AC rotary machine | Keita Hatanaka, Hideto Negoro | 2011-06-14 |
| 7852022 | Control apparatus for electric car | Tsuneyasu Kakizaki | 2010-12-14 |
| 7808195 | Control apparatus for electric train | Hidetoshi Kitanaka | 2010-10-05 |
| 7411370 | Vector controller of induction motor | — | 2008-08-12 |
| 7403799 | Base station and call search method used for the same | — | 2008-07-22 |
| 7236467 | CDMA communication system with pilot power control unit | — | 2007-06-26 |
| 6917599 | Transmission power control system in mobile communication system | — | 2005-07-12 |
| 4631811 | Locking device for electronic parts | Tatsuo Shirouzu, Nobuhiro Sakata, Saburo Inagaki | 1986-12-30 |