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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical film for eyewear, and functional film for eyewear, optical...
Patent number
11,022,732
Issue date
Jun 1, 2021
Nippon Kayaku Kabushiki Kaisha
Saki Abe
G02 - OPTICS
Information
Patent Grant
Optical film for eyewear, and optical laminate and eyewear using th...
Patent number
10,942,374
Issue date
Mar 9, 2021
Nippon Kayaku Kabushiki Kaisha
Yoshiyuki Yahagi
G02 - OPTICS
Information
Patent Grant
Optical film for eyewear with light control, light reflection, and...
Patent number
10,866,435
Issue date
Dec 15, 2020
Nippon Kayaku Kabushiki Kaisha
Yoshiyuki Yahagi
B32 - LAYERED PRODUCTS
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL FILM FOR EYEWEAR, AND OPTICAL LAMINATE AND EYEWEAR USING TH...
Publication number
20190049754
Publication date
Feb 14, 2019
Nippon Kayaku Kabushiki-Kaisha
Yoshiyuki YAHAGI
G02 - OPTICS
Information
Patent Application
OPTICAL FILM FOR EYEWEAR, AND OPTICAL LAMINATE AND EYEWEAR USING TH...
Publication number
20190033620
Publication date
Jan 31, 2019
Nippon Kayaku Kabushiki-Kaisha
Yoshiyuki YAHAGI
G02 - OPTICS
Information
Patent Application
OPTICAL FILM FOR EYEWEAR, AND FUNCTIONAL FILM FOR EYEWEAR, OPTICAL...
Publication number
20180267219
Publication date
Sep 20, 2018
Nippon Kayaku Kabushiki-Kaisha
Saki ABE
G02 - OPTICS