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. 24, 1996
Filed:
Apr. 14, 1995
Applicant:
Inventors:
Mansuke Matsumoto, Kawanishi, JP;
Nobuaki Sasaki, Souraku-gun, JP;
Bunji Sawano, Osaka-fu, JP;
Kiyoharu Hasegawa, Yokohama, JP;
Kazuyoshi Kikkawa, Kamakura, JP;
Assignees:
Mitsui Toatsu Chemicals, Inc., Toyko, JP;
Yamamoto Chemicals, Inc., Yao, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548471 ; 544405 ;
Abstract
A carboxylate is herein disclosed which is represented by the formula (1) or (2) ##STR1## wherein a ring X is an aromatic residue which may have a substituent; the other substitutents are as defined herein. A heat-sensitive recording material comprising this carboxylate is excellent in the stability of the color image and can provide an optically character-readable sharp color image.