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:
Feb. 22, 2000
Filed:
Jul. 26, 1999
Koh Takeuchi, Shizuoka-ken, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
Disclosed in a heat-sensitive recording material comprising a substrate, a heat-sensitive recording layer disposed on the substrate and a protective layer disposed on the heat-sensitive recording layer, wherein the protective layer contains a pigment containing particles having an average particle diameter of 0.300 .mu.m or less in a portion of 50% by volume in the total volume of the particles as measured by a laser diffraction method and containing 3% or less of particles having a diameter of 1.0 .mu.m or more in a total amount of particles and the surface of the protective layer has a central line value Ra of a surface roughness of 0.3 .mu.m or less in a frequency component having a roughness pitch of 2 to 10 .mu.m of the surface roughness in the entire frequency range. The heat-sensitive recording material does not cause sticking or generation of noise during recording, has an excellent transparency, reduces wear of a thermal head even in recording using a high thermal energy and provides high quality images with stability for a long time.