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:
Jun. 29, 1999
Filed:
Apr. 18, 1997
Tatsuya Morimitsu, Tokyo, JP;
Kenjiro Kuroda, Tokyo, JP;
Osamu Ito, Tokyo, JP;
Takashi Morishima, Yokohama, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Toppan Printing Co., Ltd., Tokyo, JP;
Abstract
A thermal dye transfer sheet having a dye layer provided on at least one side of a substrate, which is used for thermal dye transfer recording system carrying out recording by transferring a dye or dyes in the dye layer to a dye-receiving material by heating means, wherein the dye layer contains a pyrazolonemethine type dye of the following formula: ##STR1## wherein R.sup.1 and R.sup.2 can be respectively independently selected and are a lower alkyl group which may be substituted, a lower alkenyl group which may be substituted or an aryl group which may be substituted; and