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Shigeyasu Nagai
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Kasugai-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Photochromic contact lens having excellent discoloring characteristic
Patent number
7,261,844
Issue date
Aug 28, 2007
Menicon Co., Ltd.
Sadayasu Tanikawa
G02 - OPTICS
Information
Patent Grant
Contact lens
Patent number
6,659,607
Issue date
Dec 9, 2003
Menicon Co., Ltd.
Kazuya Miyamura
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
Photochromic contact lens having excellent discoloring characteristic
Publication number
20050243273
Publication date
Nov 3, 2005
Menicon Co., Ltd.
Sadayasu Tanikawa
G02 - OPTICS
Information
Patent Application
Contact lens
Publication number
20020101563
Publication date
Aug 1, 2002
Menicon Co., Ltd.
Kazuya Miyamura
G02 - OPTICS