Hiroshi Sugai

Person

Sakura, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Motor driving control apparatus
- Patent number 5,200,678
- Issue date Apr 6, 1993
- Hitachi, Ltd.
- Mutuo Tokashiki
- G05 - CONTROLLING REGULATING
Information Patent Grant
Method and apparatus for detecting positions and/or speed of a movi...
- Patent number 5,019,773
- Issue date May 28, 1991
- Hitachi, Ltd.
- Yasuyuki Sugiura
- G01 - MEASURING TESTING
Information Patent Grant
Position/speed detection method and apparatus
- Patent number 4,922,175
- Issue date May 1, 1990
- Hitachi, Ltd.
- Yasuyuki Sugiura
- G01 - MEASURING TESTING
Information Patent Grant
Rotating speed measuring apparatus having a corrector for low and h...
- Patent number 4,808,933
- Issue date Feb 28, 1989
- Hitachi, Ltd.
- Sumio Kobayashi
- G01 - MEASURING TESTING
Information Patent Grant
Position correcting control system for servomechanism device
- Patent number 4,788,482
- Issue date Nov 29, 1988
- Hitachi, Ltd.
- Kyozo Tachibana
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Permanent magnet rotor with sinusoidal flux pattern
- Patent number 4,748,359
- Issue date May 31, 1988
- Hitachi, Ltd.
- Masataka Yahara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Rotational information output device
- Patent number 4,733,070
- Issue date Mar 22, 1988
- Hitachi, Ltd.
- Tadashi Ookawa
- G01 - MEASURING TESTING
Information Patent Grant
Control apparatus for AC motors
- Patent number 4,516,065
- Issue date May 7, 1985
- Hitachi, Ltd.
- Hisakazu Ninomiya
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Hiroshi Sugai

Person

Patents Grantslast 30 patents

Motor driving control apparatus

Method and apparatus for detecting positions and/or speed of a movi...

Position/speed detection method and apparatus

Rotating speed measuring apparatus having a corrector for low and h...

Position correcting control system for servomechanism device

Permanent magnet rotor with sinusoidal flux pattern

Rotational information output device

Control apparatus for AC motors