YK

Yukio Kawabata

HI Hitachi: 15 patents #2,636 of 28,497Top 10%
HC Hitachi Haramachi Electronics Co.: 1 patents #22 of 64Top 35%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
Overall (All Time): #301,469 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
7388341 Control system for permanent magnet synchronous motor and module Kazuaki Tobari, Kiyoshi Sakamoto, Tsunehiro Endo, Yoshitaka Iwaji, Shigehisa Aoyagi 2008-06-17
7294988 Synchronous motor drive unit and a driving method thereof Toshiyuki Ajima, Hideki Miyazaki, Kiyoshi Sakamoto, Takao Yanai, Osamu Koizumi 2007-11-13
6828752 Driving equipment and semiconductor equipment for alternating-current motor Junnosuke Nakatsugawa, Hitoshi Ohura, Tsuyoshi Tanaka, Tunehiro Endo 2004-12-07
6657413 Driving equipment for synchronous motors Junnosuke Nakatsugawa, Tsunehiro Endo, Masashi Kitamura, Junya Kaneda 2003-12-02
6642681 Starting control method of and control apparatus for synchronous motor, and air conditioner, refrigerator, washing machine and vacuum cleaner each provided with the control apparatus Tsunehiro Endo, Makoto Ishii, Yuhachi Takakura, Toru Inoue 2003-11-04
6626002 Controller for PWM/PAM motor, air conditioner, and method of motor control Yasuo Notohara, Kazuo Tahara, Makoto Ishii, Yuhachi Takakura, Hiroshi Shinozaki 2003-09-30
6603280 Motor controller Yasuo Notohara, Kazuo Tahara, Makoto Ishii, Yuhachi Takakura 2003-08-05
6570358 Control apparatus for alternating-current motor Junnosuke Nakatsugawa, Tsunehiro Endo, Hiromi Inaba, Yoshitaka Iwaji, Hiroyuki Tomita +1 more 2003-05-27
6534948 Motor driving circuit, a method for driving a motor, and a semiconductor integrated circuit device Hitoshi Ohura, Tsuyoshi Tanaka 2003-03-18
6479956 Brushless motor control device and equipment using the control device Yasuo Notohara, Kazuo Tahara, Yuhachi Takakura, Makoto Ishii, Hiroshi Shinozaki 2002-11-12
6337548 Control apparatus of brushless motor and machine and apparatus using brushless motor Yasuo Notohara, Kazuo Tahara 2002-01-08
6198240 Motor controller Yasuo Notohara, Kazuo Tahara, Makoto Ishii, Yuhachi Takakura 2001-03-06
6191545 Control apparatus of brushless motor and machine and apparatus using brushless motor Yasuo Notohara, Kazuo Tahara 2001-02-20
6075328 PWM/PAM control mode switching type motor control apparatus, and motor drive and air-conditioner using the same Yasuo Notohara, Makoto Ishii, Hiroshi Shinozaki, Kouji Katou, Yuhachi Takakura 2000-06-13
5929591 Air conditioner Kouji Katou, Toru Inoue, Makoto Ishii, Yuhachi Takakura, Yasuo Notohara +4 more 1999-07-27
5249473 Automatically adjusting actuator unit 1993-10-05