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:
Jan. 08, 2013
Filed:
Jun. 30, 2010
Applicants:
Yukiko Mae, Tokyo, JP;
Mitsuhiro Okada, Tokyo, JP;
Inventors:
Yukiko Mae, Tokyo, JP;
Mitsuhiro Okada, Tokyo, JP;
Assignee:
Adeka Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 209/56 (2006.01); H01J 5/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical filter containing at least one naphtholactam derivative represented by general formula (I), wherein X is oxygen or sulfur; R, R, R, R, R, R, and Y are each hydrogen, halogen, nitro, cyano, aldehyde, carboxyl, hydroxyl, —NRR', organosilyl, optionally substituted C1-C30 alkyl, optionally substituted C6-C30 aryl, or optionally substituted C7-C30 arylalkyl; and R and R′ are each hydrogen, optionally substituted C1-C30 alkyl, or optionally substituted C6-C30 aryl.