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.

Date of Patent:
Nov. 10, 1998

Filed:

Nov. 29, 1996
Applicant:
Inventors:

Hiroyuki Uemura, Mishima, JP;

Hiroki Kuboyama, Mishima, JP;

Chiharu Nogawa, Numazu, JP;

Keishi Taniguchi, Susono, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ; B41M / ;
U.S. Cl.
CPC ...
503227 ; 428195 ; 428447 ; 428913 ; 428914 ;
Abstract

A sublimation thermal image transfer recording medium has a substrate, a dye-containing layer formed on the substrate, containing a sublimable dye, and a top layer formed on the dye-containing layer, with the softening temperature of the top layer being at least 200.degree. C. which is measured in accordance with Japanese Industrial Standards JIS-K7196, and the coefficient of friction thereof being 0.2 or less which is measured in accordance with ASTM-D1894. In addition, there is provided a sublimation thermal image transfer recording method which includes the step of superimposing an image receiving sheet having a dye image receiving layer on the above-mentioned sublimation thermal image transfer recording medium, with imagewise application of heat thereto, with the dyeability of the top layer of the recording medium being controlled to be lower than that of the dye image receiving layer of the image receiving sheet.


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