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:
Apr. 27, 1999
Filed:
Nov. 13, 1997
Applicant:
Inventors:
Takeo Itou, Kumagaya, JP;
Hidemi Matsuda, Fukaya, JP;
Hisashi Chigusa, Urawa, JP;
Kazuo Sakai, Kawanishi, JP;
Masaru Fukuda, Osaka, JP;
Assignees:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Fuji Pigment Co., Ltd., Kawanishi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; G21F / ;
U.S. Cl.
CPC ...
313474 ; 313466 ; 313478 ; 313479 ; 430 25 ; 430 27 ; 523136 ;
Abstract
The pigment dispersion composition having a good dispersibility, a good transparence and an anti-coating properties, which contains 0.5 to 50 parts by weight of an inorganic pigment, at least one type of dispersant selected from the group consisting of a sodium salt, an ammonium salt and an amine salt of an acrylic resin, an acryl copolymer resin, a polycarbonic acid, a condensation product of aromatic formalin sulfonate, and water or a solvent miscible with water.