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:
Jun. 06, 2006
Filed:
Aug. 28, 2003
Applicant:
Masahiro Irie, Fukuoka, JP;
Inventor:
Masahiro Irie, Fukuoka, JP;
Assignee:
Japan Science and Technology Corporation, Kawaguchi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 409/00 (2006.01); C07F 2/00 (2006.01); C08G 75/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A photochromic material having a ring opening quantum yield of 10or lower which does not fade under ambient light is provided. The material comprises a compound belonging to the diheteroarylethene class. The compound has alkoxy group and aryl group on the heteroaryl group.