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:
Sep. 25, 2012
Filed:
Feb. 04, 2010
Hiroshi Kakikawa, Fujisawa, JP;
Masako Udagawa, Kawasaki, JP;
Shuichi Okazaki, Fujisawa, JP;
Yuuhei Shimizu, Kawasaki, JP;
Hideyuki Takai, Yokohama, JP;
Shinichi Hakamada, Kawasaki, JP;
Kouhei Nakagawa, Kawasaki, JP;
Hideki Takayama, Fujisawa, JP;
Hiroshi Kakikawa, Fujisawa, JP;
Masako Udagawa, Kawasaki, JP;
Shuichi Okazaki, Fujisawa, JP;
Yuuhei Shimizu, Kawasaki, JP;
Hideyuki Takai, Yokohama, JP;
Shinichi Hakamada, Kawasaki, JP;
Kouhei Nakagawa, Kawasaki, JP;
Hideki Takayama, Fujisawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink contains at least a pigment, wherein the pigment is a solid solution of C.I. Pigment Red 202 and C.I. Pigment Violet 19, and a primary particle diameter D (nm) of the pigment and a 50%-cumulative diameter D(nm) in particle diameter distribution of the pigment satisfy a relation of D×0.95≦(=<)D≦(=<)130, and a 90%-cumulative diameter D(nm) in particle diameter distribution of the pigment and the 50%-cumulative diameter D(nm) satisfy a relation of 1.5≦(=<)D/D≦(=<)2.2.