Sumio Kobayashi

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Funabashi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Motor driving apparatus including a modularized current control cir...
- Patent number 6,194,856
- Issue date Feb 27, 2001
- Hitachi, Ltd.
- Sumio Kobayashi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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
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
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 induction motor
- Patent number 4,532,464
- Issue date Jul 30, 1985
- Hitachi, Ltd.
- Sadayuki Igarashi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER