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Patents Grantslast 30 patents

Information Patent Grant
Motor, a printer having such a motor and a disk drive system having...
- Patent number 5,574,322
- Issue date Nov 12, 1996
- Hitachi, Ltd.
- Katsutoshi Nii
- G02 - OPTICS
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
Vertical motor, method of manufacturing same, polygon mirror motor...
- Patent number 5,417,507
- Issue date May 23, 1995
- Hitachi, Ltd.
- Satosi Uno
- G02 - OPTICS
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
Magnetic fluid bearing apparatus and motor having magnetic fluid be...
- Patent number 5,108,198
- Issue date Apr 28, 1992
- Hitachi, Ltd.
- Katsutoshi Nii
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...