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:
Aug. 20, 2002
Filed:
Aug. 31, 2001
Masao Kato, Tochigi, JP;
Nobuyuki Matsumoto, Tokyo, JP;
Fumihiro Gotoh, Kanagawa, JP;
Akitoshi Yamada, Kanagawa, JP;
Tetsuya Suwa, Kanagawa, JP;
Yoichi Takada, Kanagawa, JP;
Noriyasu Asaki, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A reactive color ink that contains a metal ion and exhibits mutual reactivity with a blank ink is applied in an area including a print area, which has been formed by applying the blank ink on a recording medium, and an area surrounding the print area, a distance between an edge of the print area and an outer edge of the surrounding area being up to four pixels. This ink application is performed so that a value at least equal to 0.01 is obtained from a calculation where a metal ion concentration % by weight in the reactive color ink applied in the area including the print area and the surrounding area is multiplied by a print duty % of the reactive color ink applied in the area including the print area and the surrounding area.