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Grace S. Lim
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San Jose, CA, US
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last 30 patents
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Patent Grant
Multilayered vertical magnetic recording medium
Patent number
4,749,628
Issue date
Jun 7, 1988
International Business Machines Corporation
Richard H. Ahlert
G11 - INFORMATION STORAGE
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Patent Grant
Magnetic recording medium with an underlayer and a cobalt-based mag...
Patent number
4,654,276
Issue date
Mar 31, 1987
International Business Machines Corporation
Richard H. Ahlert
G11 - INFORMATION STORAGE