Inventor
DOUKEN TOMOHIKO
JP5 patents
Patents
5 patentsUS5631517AMay 20, 1997
Ultrasonic motor and driving for the ultrasonic motor
HITACHI LTD22 citations87
US5448140ASep 5, 1995
Image display apparatus with a deflection circuit having function for correcting rotational distortion
HITACHI LTD12 citations70
US5459378AOct 17, 1995
CRT display apparatus
HITACHI LTD5 citations62
US5793494AAug 11, 1998
CRT display device
HITACHI LTD6 citations58
US5767632AJun 16, 1998
CRT display device
HITACHI LTD6 citations53