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Shoji Kato
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Fukui, JP
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last 30 patents
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Patent Grant
Method for removing hard coat film from plastic lens
Patent number
6,179,931
Issue date
Jan 30, 2001
Asahi Lite Optical Co., Ltd.
Tadashi Kobayashi
G02 - OPTICS
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Patent Grant
Method of manufacturing plastic lenses
Patent number
5,922,251
Issue date
Jul 13, 1999
Asahi Lite Optical Co., Ltd.
Tadashi Kobayashi
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL