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Hideaki Niimi
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Ibaraki, JP
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last 30 patents
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Patent Grant
Magnetic recording medium and method for producing the same
Patent number
5,073,449
Issue date
Dec 17, 1991
Hitachi Maxell Ltd.
Hideaki Niimi
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of making a magnetic recording medium
Patent number
5,000,984
Issue date
Mar 19, 1991
Hitachi Maxell, Ltd.
Kunio Wakai
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Arrangement for preventing entrance of harmful particles for use in...
Patent number
4,933,797
Issue date
Jun 12, 1990
Hitachi Maxell Ltd.
Hikaru Mizutani
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and production thereof
Patent number
4,855,175
Issue date
Aug 8, 1989
Hitachi Maxell, Ltd.
Kunio Wakai
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...