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. 30, 2013
Filed:
Mar. 23, 2011
Shigemi Wakabayashi, Shiojiri, JP;
Kazuhiko Kitamura, Matsumoto, JP;
Yasuhiro Oki, Matsumoto, JP;
Motoki Masuda, Shiojiri, JP;
Shigemi Wakabayashi, Shiojiri, JP;
Kazuhiko Kitamura, Matsumoto, JP;
Yasuhiro Oki, Matsumoto, JP;
Motoki Masuda, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An ink composition contains a particular anthrapyridone dye and a particular copper phthalocyanine dye. The hue angle in the L*a*b* color system calculated from spectral characteristics of a 1,000-fold diluted solution of the ink composition in water is 270° to 360°. The content of the anthrapyridone dye is higher than the content of the copper phthalocyanine dye.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile