Kosho Ishizaki

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Sealed magnetic fluid bearing for polygon mirror drive motor
- Patent number 5,493,161
- Issue date Feb 20, 1996
- Hitachi, Ltd.
- Satosi Uno
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Sealed magnetic fluid bearing for polygon mirror drive motor
- Patent number 5,325,006
- Issue date Jun 28, 1994
- Hitachi, Ltd.
- Satosi Uno
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Low-speed high-torque motor
- Patent number 4,890,024
- Issue date Dec 26, 1989
- Hitachi, Ltd.
- Ichiro Hashimoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method of and an apparatus for controlling a plurality of DC motors
- Patent number 4,644,232
- Issue date Feb 17, 1987
- Hitachi, Ltd.
- Yuukou Nojiri
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER