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Kenji Tomita
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Oyama-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Abrasive composition for polishing magnetic recording disk substrates
Patent number
6,478,835
Issue date
Nov 12, 2002
Showa Denko K.K.
Norihiko Miyata
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Patent Grant
Magnetic hard disc substrate and process for manufacturing the same
Patent number
6,426,155
Issue date
Jul 30, 2002
Showa Denko K.K.
Kiyoshi Tada
G11 - INFORMATION STORAGE
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Patent Grant
Magnetic hard disc substrate and process for manufacturing the same
Patent number
6,123,603
Issue date
Sep 26, 2000
Showa Aluminum Corporation
Kiyoshi Tada
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
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Patent Application
Abrasive composition for polishing magnetic recording disk substrates
Publication number
20020002797
Publication date
Jan 10, 2002
Norihiko Miyata
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...