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:
Apr. 02, 2024
Filed:
Aug. 10, 2018
Applicant:
Sanko Co., Ltd., Kurume, JP;
Inventors:
Ryoichi Kinishi, Ibaraki, JP;
Yoshimi Ishibashi, Ibaraki, JP;
Assignee:
SANKO CO., LTD., Fukuoka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41M 5/20 (2006.01); B41M 5/24 (2006.01); B41M 5/323 (2006.01); C07C 303/28 (2006.01); C07C 303/30 (2006.01); C07C 309/76 (2006.01);
U.S. Cl.
CPC ...
C07C 309/76 (2013.01); B41M 5/323 (2013.01); C07C 303/28 (2013.01); C07C 303/30 (2013.01);
Abstract
The present invention relates to an N,N′-diurea derivative represented by the following general formula (1) and a method for producing the same. In addition, the present invention relates to a thermosensitive recording material in which a thermosensitive recording layer including a basic dye which is colorless or lightly colored at room temperature and a developer capable of developing color upon contact with the basic dye by heating is provided on a base sheet, wherein the developer is the N,N′-diurea derivative represented by the following general formula (1):