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Tokyo, JP
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last 30 patents
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Patent Grant
Method for forming a hard carbon thin film on article and applicati...
Patent number
4,772,513
Issue date
Sep 20, 1988
Trio Kabushiki Kaisha
Masakatsu Sakamoto
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method for forming a hard carbon thin film on article and applicati...
Patent number
4,725,345
Issue date
Feb 16, 1988
Kabushiki Kaisha Kenwood
Masakatsu Sakamoto
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...