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:
Jan. 13, 2009
Filed:
Jul. 16, 2004
Mizuho Shimoyama, Tokyo, JP;
Kaoru Hamada, Tokyo, JP;
Seiki Yoneshige, Tokyo, JP;
Kenji Hirai, Tokyo, JP;
Mizuho Shimoyama, Tokyo, JP;
Kaoru Hamada, Tokyo, JP;
Seiki Yoneshige, Tokyo, JP;
Kenji Hirai, Tokyo, JP;
Nippon Paper Industries Co., Ltd., Tokyo, JP;
Abstract
Provision of a thermally sensitive recording medium made up of an undercoating layer containing a pigment and a binder as main components and a thermally sensitive color-developing layer containing a colorless or pale-colored basic leuco dye and a color-developing agent which develops a color by reacting with said basic leuco dye as main components on a substrate, wherein the undercoating layer contains a water-retention agent and a pigment whose oil-absorbing capacity prescribed by JIS K 5105 is from 80 cc/100 g to 120 cc/100 g as a pigment. Further, the solids concentration of a coating for the undercoating layer is from 25% to 45% and the dynamic water-retention capacity, which is Water retention measured with AA-GWR, is 350 g/mor less.