Inventor
YASOHARA MASAHIRO
JP24 patents
⚠️ This page may combine multiple inventors who share the name “YASOHARA MASAHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
20 patentsUS6812667B2Nov 2, 2004
Motor driver
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD45 citations92
US6512343B1Jan 28, 2003
Motor driver
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD45 citations92
US6040673AMar 21, 2000
Motor control apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations92
US5929576AJul 27, 1999
Protection apparatus for brushless motor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD44 citations92
US5703459ADec 30, 1997
Driver for an induction motor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD27 citations92
US4983894AJan 8, 1991
Brushless motor driving system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations92
US4900993AFeb 13, 1990
Driving apparatus for brushless motor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD34 citations92
US5402024AMar 28, 1995
Rotor for a permanent-magnet motor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations91
US5300866AApr 5, 1994
Drive apparatus and speed control apparatus for brushless motor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD30 citations91
US6271641B1Aug 7, 2001
Step motor driving device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD49 citations89
US5122715AJun 16, 1992
Drive device for a brushless motor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations73
US4970445ANov 13, 1990
Brushless motor drive device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations73
US4780651AOct 25, 1988
Speed control apparatus for a motor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations73
US6021058AFeb 1, 2000
PWM inverter with zero dead time and initial power supply capacitor charging
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations72
US6020715AFeb 1, 2000
Control device for a brushless motor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations71
US7218072B2May 15, 2007
Motor driving device, motor to be driven by the same device, and apparatus using the same motor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations63
US7129661B2Oct 31, 2006
Motor driver, motor driven by the motor driver, and apparatus employing the motor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63
US6710559B2Mar 23, 2004
Motor driving device for motor having multi-phase coils
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations61
US5859770AJan 12, 1999
Output circuit for PWM inverter with no floating state
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations61
US7362061B2Apr 22, 2008
Gate driver, motor driving device including the gate driver, and apparatus equipped with the motor driving device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations55