The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2014
Filed:
Mar. 30, 2012
Applicant:
Tomofumi Ohnishi, Shinjuku-ku, JP;
Inventor:
Tomofumi Ohnishi, Shinjuku-ku, JP;
Assignee:
Hoya Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/00 (2006.01); C08K 5/3492 (2006.01); G03C 1/73 (2006.01); G02B 1/04 (2006.01); G02C 7/10 (2006.01); G02B 5/23 (2006.01);
U.S. Cl.
CPC ...
G02B 1/041 (2013.01); C08K 5/34926 (2013.01); G03C 1/73 (2013.01); G02C 7/102 (2013.01); G02B 5/23 (2013.01); G03C 1/733 (2013.01);
Abstract
The present invention relates to a photochromic lens, which comprises a photochromic layer comprising a photochromic dye and a resin component, and an organic hardcoat layer in this order, wherein the resin component is an acrylic resin, and the photochromic layer further comprises a piperidine ring-containing compound having a molecular weight of equal to or greater than 1,000.
Quick Actions:
Ohnishi, Tomofumi. (2014). Photochromic lens (U.S. Patent No. 8902487). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8902487
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile