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:
Mar. 10, 2026
Filed:
Oct. 14, 2020
Applicant:
Tokuyama Corporation, Shunan, JP;
Inventors:
Masayuki Miyazaki, Shunan, JP;
Junji Takenaka, Shunan, JP;
Srinivas Venu, Shunan, JP;
Junji Momoda, Shunan, JP;
Katsuhiro Mori, Shunan, JP;
Assignee:
TOKUYAMA CORPORATION, Shunan, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 9/02 (2006.01); C07D 311/96 (2006.01); C07D 497/10 (2006.01); C07F 7/08 (2006.01); C09D 4/06 (2006.01); C09D 7/63 (2018.01); G02B 1/04 (2006.01); G02B 1/10 (2015.01); G02B 5/23 (2006.01); C08K 5/1545 (2006.01); C08K 5/357 (2006.01); C08K 5/378 (2006.01); C08K 5/46 (2006.01); C08K 5/5435 (2006.01); C08K 5/548 (2006.01);
U.S. Cl.
CPC ...
C09K 9/02 (2013.01); C07D 311/96 (2013.01); C07D 497/10 (2013.01); C07F 7/0812 (2013.01); C09D 4/06 (2013.01); C09D 7/63 (2018.01); G02B 1/041 (2013.01); G02B 1/10 (2013.01); G02B 5/23 (2013.01); C08K 5/1545 (2013.01); C08K 5/357 (2013.01); C08K 5/378 (2013.01); C08K 5/46 (2013.01); C08K 5/5435 (2013.01); C08K 5/548 (2013.01); C09K 2211/1018 (2013.01);
Abstract
A photochromic compound of the present invention comprises at least two monovalent photochromic basic structure groups PC including a T-type photochromic moiety, the photochromic basic structure groups being bonded to an organic group having a non-SO aromatic ring containing neither a sulfur atom nor an oxygen atom.