Mitsuyuki Honbu

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Control method and device for AC motor
- Patent number 5,184,057
- Issue date Feb 2, 1993
- Hitachi, Ltd.
- Keijiro Sakai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Apparatus for controlling AC elevators
- Patent number 4,779,709
- Issue date Oct 25, 1988
- Hitachi, Ltd.
- Nobuo Mitsui
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Inverter device using gate turn-off thyristors
- Patent number 4,549,258
- Issue date Oct 22, 1985
- Hitachi, Ltd.
- Mitsuyuki Honbu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control system for induction motor using inverter for AC power supply
- Patent number 4,420,718
- Issue date Dec 13, 1983
- Hitachi, Ltd.
- Keijiro Sakai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Twelve-step current source inverter
- Patent number 4,276,589
- Issue date Jun 30, 1981
- Hitachi, Ltd.
- Tadashi Okawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Protective device of a current source inverter
- Patent number 4,188,663
- Issue date Feb 12, 1980
- Hitachi, Ltd.
- Tadashi Okawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER