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:
Jan. 18, 2005
Filed:
Jun. 04, 2001
Applicants:
Tsuyoshi Kanke, Kanagawa, JP;
Takao Yamamoto, Kanagawa, JP;
Kumiko Mafune, Kanagawa, JP;
Hisashi Teraoka, Shizuoka, JP;
Yuko Yakushigawa, Kanagawa, JP;
Inventors:
Tsuyoshi Kanke, Kanagawa, JP;
Takao Yamamoto, Kanagawa, JP;
Kumiko Mafune, Kanagawa, JP;
Hisashi Teraoka, Shizuoka, JP;
Yuko Yakushigawa, Kanagawa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 1100 ; C09D 1102 ; C07C24502 ; C09B 29033 ; C07D22122 ;
U.S. Cl.
CPC ...
Abstract
Magenta ink exhibiting excellent coloration on various recording materials is provided according to the present invention. The magenta ink can realize high image densities and can produce images having superior light resistance. The magenta ink contains first and second coloring materials represented by the following general formulae 1 and 2, respectively, and a water-based medium