YK

Yukio Kawabata

HI Hitachi: 6 patents #133 of 4,225Top 4%
HC Hitachi Haramachi Electronics Co.: 1 patents #1 of 6Top 20%
Overall (2003): #4,750 of 273,478Top 2%
6
Patents 2003

Issued Patents 2003

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
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