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. 08, 1986
Filed:
Oct. 31, 1984
Yasumasa Yokoyama, Yokohama, JP;
Tomoko Komori, Machida, JP;
Tsuyoshi Eida, Ichikawa, JP;
Shoji Koike, Yokohama, JP;
Masatsune Kobayashi, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A recording liquid containing as a coloring component a copper phthalocyanine dye having at least one alkali metal sulfonate substituent is provided. The recording liquid is characterized in that the ratio of the integrated peak areas (A/B) in a liquid chromatogram of said dye is at least 1/6, wherein, provided that the retention time of the main peak is taken as 1.00, A and B represent the integrated peak area of the relative retention time of from 0 to 0.80 and that of from 0.85 to 4.00, respectively.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile