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. 26, 2000
Filed:
Mar. 11, 1999
Applicant:
Inventors:
Noritaka Nakayama, Hino, JP;
Satomi Kawasaki, Hino, JP;
Assignee:
Konica Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ; G03C / ; G03C / ; G03C / ;
U.S. Cl.
CPC ...
430292 ; 43027018 ; 43027015 ; 430334 ; 430339 ; 430346 ; 430962 ;
Abstract
A photo-decoloring dye represented by the following Formula (1), ##STR1## wherein Z.sub.1, Z.sub.2 and Z.sub.3 each represents a carbon atom or a nitrogen atom, R.sub.1, R.sub.2 and R.sub.3 each represents a hydrogen atom and substituents, Z.sub.2 and Z.sub.3 may form a condensed ring, Z represents N or CH, X+ represents an organic cation, m represents an integer of 0 to 4, n represents an integer of 0 to 3.