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:
Mar. 17, 1992
Filed:
Apr. 04, 1990
Applicant:
Inventors:
Toshiaki Minami, Tokyo, JP;
Tadakazu Fukuchi, Tokyo, JP;
Toshio Kaneko, Tokyo, JP;
Fumio Fujimura, Tokyo, JP;
Kazuto Tsukinuki, Nakatsu, JP;
Kazumi Saeki, Natsu, JP;
Akira Shimada, Nakatsu, JP;
Assignees:
Jujo Paper Co., Ltd., Tokyo, JP;
Yoshitomi Pharmaceutical Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ;
U.S. Cl.
CPC ...
503216 ; 427150 ; 503217 ; 503221 ; 503225 ;
Abstract
A thermosensitive recording sheet comprising a support and a thermosensitive color developer layer thereon containing a basic leuco dye and an organic color developer, said layer containing a bis-phenyl sulfone compound selected from bis-(3-phenyl-4-hydroxyphenyl)sulfone and bis-(2-methyl-4-hydroxy-5-cyclohexylphenyl)sulfone as the organic color developer.