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Kenichi Kamata
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Kyoto, JP
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last 30 patents
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Patent Grant
Subsystem of producing dye base body used for dyeing of spectacle l...
Patent number
7,014,314
Issue date
Mar 21, 2006
Nidek Co., Ltd.
Kenichi Kamata
G02 - OPTICS
Information
Patent Grant
Method of dyeing plastic lens and a dyeing system used therein
Patent number
6,520,999
Issue date
Feb 18, 2003
Nidek Co., Ltd.
Kenichi Kamata
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...