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:
Sep. 28, 1993
Filed:
Apr. 16, 1992
Applicant:
Inventors:
Tsukasa Ohyama, Fukuoka, JP;
Kazuhiko Murayama, Fukuoka, JP;
Yoriaki Matsuzaki, Fukuoka, JP;
Susumu Kasamatsu, Fukuoka, JP;
Keisuke Takuma, Fukuoka, JP;
Kimitoshi Kato, Fukuoka, JP;
Assignee:
Mitsui Toatsu Chemicals, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
548159 ; 548204 ; 548217 ; 548236 ; 5483051 ; 549399 ;
Abstract
A novel 4-carbonyl-substituted coumarin compound which is substituted with a carbonyl group in the position-4 of a 7-alkylaminocoumarin derivative and has photosensitivity in the visible region.