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:
Jul. 16, 1985
Filed:
Jun. 06, 1984
Hideo Watanabe, Numazu, JP;
Nobuhiro Takigawa, Numazu, JP;
Minoru Hakiri, Numazu, JP;
Kanjirou Kawasaki, Numazu, JP;
Keishi Kubo, Yokohama, JP;
Ricoh Co., Ltd., Tokyo, JP;
Abstract
The heat sensitive transfer medium according to the present invention is characterized in that it comprises a transfer sheet having a transfer layer consisted essentially of a leuco-dye color former and a receiving sheet having a receiving layer consisted essentially of a developer for said leuco-dye and a binder and that said transfer layer further contains 0.01 to 1 part by weight of polyester resin which has a melting point of 50.degree. to 130.degree. C. and a repetition unit represented by the formula: ##STR1## together with 0.01 to 1 part by weight of a porous filler which has an oil absorption of 50 ml or more/100 g, respectively per part by weight of said leuco-dye.