Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8044618 | Control apparatus for AC motor | Junnosuke Nakatsugawa, Yoshitaka Iwaji, Kiyoshi Sakamoto | 2011-10-25 |
| 7919941 | Semiconductor power converter | Shigehisa Aoyagi, Yoshitaka Iwaji, Kiyoshi Sakamoto, Donsheng Li | 2011-04-05 |
| 7825620 | Controller and constant measuring apparatus for AC motor | Junnosuke Nakatsugawa, Yoshitaka Iwaji | 2010-11-02 |
| 7821223 | Vector controller for a permanent magnet motor and inverter module | Tsunehiro Endo, Kiyoshi Sakamoto, Daisuke Maeda, Shigehisa Aoyagi | 2010-10-26 |
| 7808202 | Beat-less controller for permanent magnet motor | Yoshitaka Iwaji, Kiyoshi Sakamoto, Hajime Uematsu, Masakazu Hase | 2010-10-05 |
| 7791295 | Field weakening control apparatus for permanent magnet motor and electric power steering using same | Kentaro Oi, Yoshitaka Iwaji, Mitsuo Sasaki, Tatsuo Matsumura | 2010-09-07 |
| 7719226 | Highly responsive permanent magnet motor controller | Yoshitaka Iwaji, Daigo Kaneko, Hajime Uematsu, Masakazu Hase | 2010-05-18 |
| 7619385 | Motor controller, washing machine, air conditioner and electric oil pump | Takahiro Suzuki, Tsunehiro Endo, Daigo Kaneko, Daisuke Maeda, Akira Yamazaki | 2009-11-17 |
| 7602138 | Driving apparatus and driving system for electric motor | Daigo Kaneko, Takahiro Suzuki, Tsunehiro Endo, Hajime Uematsu | 2009-10-13 |
| 7560896 | Vector control apparatus for permanent magnet motor | Kentaro Ohi, Yoshitaka Iwaji | 2009-07-14 |
| 7528568 | Vector controller for permanent magnet synchronous motor | Tsunehiro Endo, Yoshiki Ito | 2009-05-05 |
| 7521887 | Vector controller for a permanent magnet synchronous motor, inverter module, and permanent magnet synchronous motor constant display system | Tsunehiro Endo | 2009-04-21 |
| 7443120 | Field weakening vector controller for permanent magnet synchronous motor and control module | Daisuke Maeda, Tsunehiro Endo | 2008-10-28 |
| 7388341 | Control system for permanent magnet synchronous motor and module | Kiyoshi Sakamoto, Tsunehiro Endo, Yoshitaka Iwaji, Yukio Kawabata, Shigehisa Aoyagi | 2008-06-17 |
| 7148651 | Apparatus and method for controlling AC motor and module therefor | Tsunehiro Endo, Hidefumi Shirahama, Yoshiki Itou | 2006-12-12 |
| 7075266 | Apparatus for controlling an a. c. motor | Tsunehiro Endou, Yoshitaka Iwaji, Hidefumi Shirahama, Yasuo Notohara | 2006-07-11 |
| 6954050 | Control method and control device of permanent-magnet type synchronous motor | Tsunehiro Endo, Hidefumi Shirahama, Yoshiyuki Taguchi, Tomofumi Okubo | 2005-10-11 |
| 6670786 | Apparatus for controlling an induction motor | Toshiaki Okuyama | 2003-12-30 |
| 6344726 | Method of controlling an induction motor | Toshiaki Okuyama | 2002-02-05 |
| 5016158 | Parallel multi-inverter system and motor drive system using the same | Takayuki Matsui, Toshiaki Okuyama, Yuzuru Kubota, Junichi Takahashi | 1991-05-14 |
| 4869334 | Electric motor-driven power steering apparatus | Katsuji Marumoto, Tsutomu Ohmae, Toshiyuki Koterazawa | 1989-09-26 |