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Masahiro Kikkawa
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Miyagi, JP
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last 30 patents
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Patent Grant
Method for producing magneto-optical recording medium
Patent number
5,741,541
Issue date
Apr 21, 1998
Sony Corporation
Etsuro Ikeda
G11 - INFORMATION STORAGE
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Patent Grant
Magneto-optical recording medium having a rave earth-transition met...
Patent number
5,585,197
Issue date
Dec 17, 1996
Sony Corporation
Etsuro Ikeda
G11 - INFORMATION STORAGE
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Patent Grant
Magnetic head
Patent number
5,475,551
Issue date
Dec 12, 1995
Sony Corporation
Junichi Honda
G11 - INFORMATION STORAGE