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Machida, JP
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last 30 patents
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Patent Grant
Magnetic disc
Patent number
5,846,628
Issue date
Dec 8, 1998
Mitsubishi Kasei Corporation
Toru Kuroe
C03 - GLASS MINERAL OR SLAG WOOL
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Patent Grant
Glass substrate having surface protrusions for use as a magnetic di...
Patent number
5,618,448
Issue date
Apr 8, 1997
Mitsubishi Kasei Corporation
Toru Kuroe
C03 - GLASS MINERAL OR SLAG WOOL