Inventor
KAWABATA YUKIO
JP16 patents
⚠️ This page may combine multiple inventors who share the name “KAWABATA YUKIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
15 patentsUS6191545B1Feb 20, 2001
Control apparatus of brushless motor and machine and apparatus using brushless motor
HITACHI LTD94 citations98
US7294988B2Nov 13, 2007
Synchronous motor drive unit and a driving method thereof
HITACHI LTD88 citations97
US6198240B1Mar 6, 2001
Motor controller
HITACHI LTD67 citations96
US6828752B2Dec 7, 2004
Driving equipment and semiconductor equipment for alternating-current motor
HITACHI LTD42 citations92
US6657413B2Dec 2, 2003
Driving equipment for synchronous motors
HITACHI LTD21 citations92
US6642681B2Nov 4, 2003
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
HITACHI LTD51 citations92
US6626002B1Sep 30, 2003
Controller for PWM/PAM motor, air conditioner, and method of motor control
HITACHI LTD33 citations92
US6603280B2Aug 5, 2003
Motor controller
HITACHI LTD29 citations92
US6570358B2May 27, 2003
Control apparatus for alternating-current motor
HITACHI LTD34 citations92
US6534948B2Mar 18, 2003
Motor driving circuit, a method for driving a motor, and a semiconductor integrated circuit device
HITACHI LTD42 citations92
US6479956B1Nov 12, 2002
Brushless motor control device and equipment using the control device
HITACHI LTD50 citations92
US6337548B2Jan 8, 2002
Control apparatus of brushless motor and machine and apparatus using brushless motor
HITACHI LTD37 citations92
US6075328AJun 13, 2000
PWM/PAM control mode switching type motor control apparatus, and motor drive and air-conditioner using the same
HITACHI LTD50 citations92
US5929591AJul 27, 1999
Air conditioner
HITACHI LTD26 citations89
US7388341B2Jun 17, 2008
Control system for permanent magnet synchronous motor and module
HITACHI LTD8 citations74