Issued Patents All Time
Showing 25 most recent of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6963154 | Permanent magnet type electric rotating machine and hybrid electric vehicle using it | Yutaka Matsunobu, Fumio Tajima, Shouichi Kawamata, Osamu Koizumi | 2005-11-08 |
| 6935012 | Dynamo electric machine and method of manufacturing the same | Takashi Yasuhara, Toshiaki Ueda, Yasuhiko Kimura, Suetaro Shibukawa | 2005-08-30 |
| 6791227 | Dynamo electric machine and method of manufacturing the same | Takashi Yasuhara, Toshiaki Ueda, Yasuhiko Kimura, Suetaro Shibukawa | 2004-09-14 |
| 6555988 | Motor control device | Ryoso Masaki, Satoru Kaneko, Mitsuyuki Hombu, Yoshimi Sakurai | 2003-04-29 |
| 6429565 | Permanent magnet type electric rotating machine and hybrid electric vehicle using it | Yutaka Matsunobu, Fumio Tajima, Shouichi Kawamata, Osamu Koizumi | 2002-08-06 |
| 6373219 | Motor control system and motor control method | Hiroshi Katayama, Yasuo Morooka | 2002-04-16 |
| 6320349 | Method of estimating field pole position of synchronous motor, motor controller, and electric vehicle | Satoru Kaneko, Ryoso Masaki, Yuusuke Takamoto, Taizou Miyazaki | 2001-11-20 |
| 6255798 | Control apparatus for electric vehicle | Ryoso Masaki, Yuusuke Takamoto, Eiichi Ohtsu, Hiroyuki Yamada | 2001-07-03 |
| 6236172 | Driving system for electric vehicle | Hiroshi Katada, Suetaro Shibukawa, Nobunori Matsudaira, Shotaro Naito | 2001-05-22 |
| 6198256 | Control apparatus for a synchronous generator system and a hybrid-type electric vehicle using it | Taizou Miyazaki, Ryoso Masaki, Satoru Kaneko, Kazuyoshi Sasazawa, Nobunori Matsudaira | 2001-03-06 |
| 6154002 | Control apparatus for permanent magnet electric motor used in electric motor vehicle | Katsuyuki Izumisawa, Toshisada Mitsui | 2000-11-28 |
| 6072288 | Control apparatus for permanent magnet electric motor used in electric motor vehicle in which a predetermined magnetic pole location signal pulse is supplied upon starting | Katsuyuki Izumisawa, Toshisada Mitsui | 2000-06-06 |
| 6008617 | Motor control device for high frequency AC driven motor | Satoru Kaneko, Ryoso Masaki, Yuusuke Takamoto | 1999-12-28 |
| 5994881 | Control apparatus for a synchronous generator system and a hybrid-type electric vehicle using it | Taizou Miyazaki, Ryoso Masaki, Satoru Kaneko, Kazuyoshi Sasazawa, Nobunori Matsudaira | 1999-11-30 |
| 5994870 | Method of estimating field pole position of synchronous motor, motor controlled, and electric vehicle | Satoru Kaneko, Ryoso Masaki, Yuusuke Takamoto, Taizou Miyazaki | 1999-11-30 |
| 5920161 | Driving system for permanent magnet type synchronous machine suitable for electric vehicle and driving control method using the same | Kazuyoshi Sasazawa, Nobunori Matsudaira | 1999-07-06 |
| 5914582 | Permanent magnet synchronous motor controller and electric vehicle controller | Yuusuke Takamoto, Ryoso Masaki, Hiroshi Katada | 1999-06-22 |
| 5877601 | Control system for electric vehicle and control method therefor in which an inverter relay is controlled at the time of its re-closing after being disconnected | Hiroshi Katada, Nobunori Matsudaira, Eiichi Ohtsu, Ryoso Masaki | 1999-03-02 |
| 5877607 | Electric motor controller capable of performing stable current control during load disturbance and/or a regenerating mode | Ryoso Masaki, Yuusuke Takamoto, Taizou Miyazaki, Satoru Kaneko | 1999-03-02 |
| 5841263 | Frequency dependent current control system for an AC motor | Satoru Kaneko, Ryoso Masaki, Yuusuke Takamoto | 1998-11-24 |
| 5726890 | Control apparatus for electric vehicle | Yuusuke Takamoto, Ryoso Masaki, Satoru Kaneko | 1998-03-10 |
| 5677604 | Control system and control method for electric automobile | Ryoso Masaki, Nobuyoshi Mutoh, Satoru Kaneko | 1997-10-14 |
| 5661380 | Method and apparatus for operating an electric vehicle drive system during periods of sensor malfunction | Shigeyuki Yoshihara, Hiroyuki Yamada, Nobunori Matsudaira | 1997-08-26 |
| 5659235 | Drive controller and control method for electric vehicle | Hiroyuki Yamada, Nobunori Matsudaira | 1997-08-19 |
| 5650700 | Electric vehicle torque controller | Nobuyoshi Mutoh, Taizou Miyazaki, Ryoso Masaki, Tsutomu Ohmae | 1997-07-22 |