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:
Nov. 10, 1998
Filed:
Jun. 28, 1996
Masanobu Hida, Miyagi, JP;
Kengo Ito, Miyagi, JP;
Yoshio Fujiwara, Tochigi, JP;
Nobuo Suzuki, Tokyo, JP;
Hiroyoshi Yamaga, Tokyo, JP;
Junichi Hagiwara, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Hodogaya Chemical Co., Ltd., Kanagawa, JP;
Abstract
Disclosed are diazahemicyanine hydrophobic cationic dyes represented by the formula (1): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are lower alkyl groups having not more than 5 carbon atoms, R.sup.5 is a lower alkyl group having not more than 5 carbon atoms or a lower alkoxy lower alkyl group having not more than 6 carbon atoms, and Z.sup.- is a counter ion having a hydrophobic organic group, and a thermal transfer ink ribbon having a substrate and and ink layer laminated thereon containing said cationic dye.