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:
Mar. 31, 2015
Filed:
Aug. 12, 2013
Canon Kabushiki Kaisha, Tokyo, JP;
Masayuki Ikegami, Atsugi, JP;
Masashi Ogasawara, Machida, JP;
Tetsu Iwata, Yokohama, JP;
Takashi Saito, Kawasaki, JP;
Masashi Tsujimura, Kawasaki, JP;
Yojiro Kojima, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink containing a first coloring material and a second coloring material, the sum total of these contents being 6.0% by mass or less. The first coloring material is a black coloring material exhibiting a difference Δλof 20.0 or more between a maximum absorption wavelength in a 20.0% by mass aqueous solution of 1,2-hexanediol and a maximum absorption wavelength in water, the second coloring material is a specific coloring material exhibiting a difference Δλof 12.0 or less between a maximum absorption wavelength in a 20.0% by mass aqueous solution of 1,2-hexanediol and a maximum absorption wavelength in water, and the sum of the Δλand the Δλis 35.0 or less.