Emi Mangyo

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Kokubunji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic recording system and magnetic recording medium used therefor
- Patent number 6,177,208
- Issue date Jan 23, 2001
- Hitachi, Ltd.
- Tomoo Yamamoto
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic recording system and magnetic recording medium used therefor
- Patent number 5,919,581
- Issue date Jul 6, 1999
- Hitachi, Ltd.
- Tomoo Yamamoto
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Multi-layered magnetic recording medium and magnetic recording syst...
- Patent number 5,723,198
- Issue date Mar 3, 1998
- Hitachi, Ltd.
- Yuzuru Hosoe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium containing heavy rare gas atoms, and a ma...
- Patent number 5,650,889
- Issue date Jul 22, 1997
- Hitachi, Ltd.
- Tomoo Yamamoto
- G11 - INFORMATION STORAGE