Inventor
NOTOHARA YASUO
JP23 patents
⚠️ This page may combine multiple inventors who share the name “NOTOHARA YASUO”. 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
US6198240B1Mar 6, 2001
Motor controller
HITACHI LTD67 citations96
US5463299AOct 31, 1995
Current controller for controlling a current flowing in a load using a PWM inverter and method used thereby
HITACHI LTD81 citations95
US5359278AOct 25, 1994
Zero current switching circuit and converting apparatus using the same
HITACHI LTD41 citations93
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
US6479956B1Nov 12, 2002
Brushless motor control device and equipment using the control device
HITACHI LTD50 citations92
US6397611B1Jun 4, 2002
Air conditioner and brushless motor control unit
HITACHI LTD22 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
US6519959B2Feb 18, 2003
Air conditioner
HITACHI LTD17 citations84
US7075266B2Jul 11, 2006
Apparatus for controlling an a. c. motor
HITACHI LTD16 citations83
US9748887B2Aug 29, 2017
Permanent magnet synchronous motor and winding-switching motor driving device, and refrigeration air conditioner and electric vehicle using same
HITACHI LTD7 citations80
US5050057ASep 17, 1991
Power source apparatus
HITACHI LTD19 citations72