Mitsuyuki Tsuyuki

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Kanagawa-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Spindle motor and magnetic disc device using thereof having radial...
- Patent number 6,771,460
- Issue date Aug 3, 2004
- Hitachi, Ltd.
- Katsutoshi Nii
- G11 - INFORMATION STORAGE
Information Patent Grant
Spindle motor and magnetic disc device with hydrodynamic bearings
- Patent number 6,680,814
- Issue date Jan 20, 2004
- Hitachi, Ltd.
- Katsutoshi Nii
- G11 - INFORMATION STORAGE
Information Patent Grant
Spindle motor and magnetic disc device with hydrodynamic bearing
- Patent number 6,469,866
- Issue date Oct 22, 2002
- Hitachi, Ltd.
- Katsutoshi Nii
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Spindle motor and magnetic disc device using thereof
- Publication number 20030011929
- Publication date Jan 16, 2003
- Katsutoshi Nii
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Spindle motor and magnetic disc device using thereof
- Publication number 20020196582
- Publication date Dec 26, 2002
- Katsutoshi Nii
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...