Yoshihiro Sato

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Disk drive device
- Patent number 6,510,122
- Issue date Jan 21, 2003
- Hitachi, Ltd.
- Yoshiaki Yamauchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Disc device having disc in balance correcting arrangements
- Patent number 6,198,715
- Issue date Mar 6, 2001
- Hitachi, Ltd.
- Takashi Kouno
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Oil retaining bearing unit and motor having oil retaining bearing unit
- Patent number 5,810,481
- Issue date Sep 22, 1998
- Hitachi, Ltd.
- Katsutoshi Nii
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Magnetic recording medium, process for producing magnetic recording...
- Patent number 5,500,296
- Issue date Mar 19, 1996
- Hitachi, Ltd.
- Youichi Inoue
- G11 - INFORMATION STORAGE