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:
Nov. 01, 2005
Filed:
Feb. 12, 2003
Takahisa Kato, Tokyo, JP;
Hidetaka Tsukada, Tokyo, JP;
Shoji Hizatate, Tokyo, JP;
Shigetoshi Hiraishi, Tokyo, JP;
Kiichiro Wakamatsu, Tokyo, JP;
Katsuya Shito, Tokyo, JP;
Makoto Ida, Tokyo, JP;
Takahisa Kato, Tokyo, JP;
Hidetaka Tsukada, Tokyo, JP;
Shoji Hizatate, Tokyo, JP;
Shigetoshi Hiraishi, Tokyo, JP;
Kiichiro Wakamatsu, Tokyo, JP;
Katsuya Shito, Tokyo, JP;
Makoto Ida, Tokyo, JP;
Mitsubishi Paper Mills Ltd., Tokyo, JP;
Abstract
Disclosed is a heat-sensitive recording material having excellent properties such as high color-forming sensitivity (excellent thermal response), a high formed color density, freedom from ground fogging and excellent retainability of recorded image. The heat-sensitive recording material has a heat-sensitive recording layer containing (1) at least two diphenylsulfone derivatives, (2) a combination of a diphenylsulfone derivative with a hydroxybenzoic acid derivative, (3) a combination of a diphenylsulfone derivative with a diphenyl ether derivative, (4) a combination of a diphenylsulfone derivative with salicylamide or a derivative thereof, or (5) a combination of 4,4'-dihydroxydiphenylsulfone, salicylanilide and dibenzyloxalate.