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. 24, 2010
Filed:
Dec. 27, 2005
Hifumi Egusa, Neyagawa, JP;
Shinji Shimada, Neyagawa, JP;
Nobuhisa Sudo, Neyagawa, JP;
Takashi Koizumi, Neyagawa, JP;
Makiko Nanke, Neyagawa, JP;
Hifumi Egusa, Neyagawa, JP;
Shinji Shimada, Neyagawa, JP;
Nobuhisa Sudo, Neyagawa, JP;
Takashi Koizumi, Neyagawa, JP;
Makiko Nanke, Neyagawa, JP;
Nippon Point Co., Ltd., Osaka, JP;
Abstract
A first pigment made of a coloring pigment having a primary average particle diameter of 200 nm or smaller or, or made of carbon black having an average particle diameter of a structure of 100 nm or smaller, and a second pigment made of barium sulfate having a primary average particle diameter of 55 nm or smaller are combined so that a value of (acid amount-base amount) of one pigment becomes positive, and a value of (acid amount-base amount) of other pigment becomes negative, and the combined first and second pigments are dispersed in a medium in the presence of a pigment dispersant.