Sigeru Sano

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Fuji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic disk including protective layer having surface with protru...
- Patent number 6,303,205
- Issue date Oct 16, 2001
- Hitachi, Ltd.
- Hideaki Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk including protective layer having surface with magnet...
- Patent number 5,930,073
- Issue date Jul 27, 1999
- Hitachi, Ltd.
- Hideaki Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk including protective layer having surface with protus...
- Patent number 5,504,646
- Issue date Apr 2, 1996
- Hitachi, Ltd.
- Hideaki Tanaka
- G11 - INFORMATION STORAGE