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:
Jul. 12, 1994
Filed:
Mar. 08, 1993
Masato Tanaka, Nishinomiya, JP;
Tomoharu Shiozaki, Amagasaki, JP;
Shigeru Oda, Ibaraki, JP;
Toranosuke Saito, Ibaraki, JP;
Kanzaki Paper Manufacturing Co., Ltd., Tokyo, JP;
Sanko Kaihatsu Kagaku Kenkyusho, Osaka, JP;
Abstract
The present invention provides a color developer composition characterized in that the composition contains a color developer comprising as its main component a nucleus-substituted salicylic acid salt represented by the formula (1) given below, and at least one amide compound selected from the group consisting of the compounds of represented by the formula (2) and formula (3) given below. ##STR1## wherein R.sub.1 to R.sub.10 are as defined in the specification.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile