Akira Ishikawa

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Menlo Park, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic recording media and magnetic recording system using the same
- Patent number 6,057,021
- Issue date May 2, 2000
- Hitachi, Ltd.
- Akira Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording media and magnetic recording system using the same
- Patent number 5,750,230
- Issue date May 12, 1998
- Hitachi, Ltd.
- Akira Ishikawa
- G11 - INFORMATION STORAGE
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