Inventor
SUGIURA YASUYUKI
JP24 patents
⚠️ This page may combine multiple inventors who share the name “SUGIURA YASUYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
11 patentsUS4511827AApr 16, 1985
Apparatus for driving a polyphase brushless motor with a suppressed torque ripple
HITACHI LTD60 citations96
US6567282B1May 20, 2003
Apparatus and method of sensorless control for synchronous generator
HITACHI LTD26 citations92
US5019773AMay 28, 1991
Method and apparatus for detecting positions and/or speed of a moving body using two phase signals
HITACHI LTD33 citations92
US4621224ANov 4, 1986
Position/speed detection method and apparatus
HITACHI LTD21 citations82
US4922175AMay 1, 1990
Position/speed detection method and apparatus
HITACHI LTD14 citations74
US4628314ADec 9, 1986
Method and apparatus for detecting position and velocity of moving body
HITACHI LTD14 citations74
US4488103ADec 11, 1984
Motor control method and control apparatus therefor
HITACHI LTD16 citations74
US6720753B2Apr 13, 2004
Power generation system using synchronous generator
HITACHI LTD12 citations73
US4367520AJan 4, 1983
Method and apparatus for controlling pulse width modulation inverter circuit
HITACHI LTD9 citations73
US4012679AMar 15, 1977
Method and apparatus for controlling the operation of synchronous motor
HITACHI LTD18 citations73
US3997825ADec 14, 1976
Method and apparatus for controlling synchronous motor
HITACHI LTD17 citations71
TOSHIBA KK
7 patentsUS5312698AMay 17, 1994
Aluminum nitride substrate and method for producing same
TOSHIBA KK28 citations92
US5165983ANov 24, 1992
Method for production of aluminum nitride ceramic plate
TOSHIBA KK26 citations92
US4704320ANov 3, 1987
Substrate structure
TOSHIBA KK38 citations90
US5164246ANov 17, 1992
Highly thermoconductive ceramic
TOSHIBA KK19 citations78
US5637406AJun 10, 1997
Metallized aluminum nitride substrate
TOSHIBA KK16 citations73
US4863658ASep 5, 1989
Aluminum nitride ceramic substrate for copper and method for production thereof
TOSHIBA KK11 citations66
US5258218ANov 2, 1993
Aluminum nitride substrate and method for producing same
TOSHIBA KK0 citations52