Inventor
SUGAI HIROSHI
22 patents
⚠️ This page may combine multiple inventors who share the name “SUGAI HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
8 patentsUS5019773AMay 28, 1991
Method and apparatus for detecting positions and/or speed of a moving body using two phase signals
HITACHI LTD33 citations92
US4788482ANov 29, 1988
Position correcting control system for servomechanism device
HITACHI LTD25 citations92
US4748359AMay 31, 1988
Permanent magnet rotor with sinusoidal flux pattern
HITACHI LTD70 citations90
US4922175AMay 1, 1990
Position/speed detection method and apparatus
HITACHI LTD14 citations74
US4808933AFeb 28, 1989
Rotating speed measuring apparatus having a corrector for low and high speeds using angle and frequency transducers
HITACHI LTD8 citations73
US4516065AMay 7, 1985
Control apparatus for AC motors
HITACHI LTD18 citations72
US5200678AApr 6, 1993
Motor driving control apparatus
HITACHI LTD9 citations69
US4733070AMar 22, 1988
Rotational information output device
HITACHI LTD5 citations57
MORITA MFG
4 patentsUS4218216AAug 19, 1980
Method of lubricating dental hand-piece and small-sized oiler for use therein
MORITA MFG26 citations81
US4326846AApr 27, 1982
Dental handpiece
MORITA MFG16 citations73
US4209293AJun 24, 1980
Air bearing for a dental handpiece
MORITA MFG13 citations73
US4189836AFeb 26, 1980
Chuck for dental hand-piece
MORITA MFG1 citations51