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:
Oct. 14, 2008
Filed:
Aug. 11, 2004
Hiroshi Tomioka, Tokyo, JP;
Hiroyuki Takuhara, Tokyo, JP;
Tsuyoshi Kanke, Kanagawa, JP;
Shin-ichi Tochihara, Kanagawa, JP;
Shohei Tsutsumi, New York, NY (US);
Hiroshi Tomioka, Tokyo, JP;
Hiroyuki Takuhara, Tokyo, JP;
Tsuyoshi Kanke, Kanagawa, JP;
Shin-ichi Tochihara, Kanagawa, JP;
Shohei Tsutsumi, New York, NY (US);
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
If an ink for a particular color (for example, red) having an excellent color developing characteristic is used in addition to inks for three primary colors of subtractive color mixture, the high color reproducibility is to be maintained for a long period. To accomplish this, at least one (for example, a yellow ink) of the inks of two colors between which the hue angle of red, included in the three primary colors, is sandwiched is applied to an area of a printing medium to which a red ink is applied so that the inks overlap each other. Thus, the yellow ink, having a high weatherability, is applied to an area on the printing medium to which only the red ink, having a low weatherability, is otherwise applied. It is therefore possible to improve the weatherability while maintaining the color developing characteristic at a high level.