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:
Nov. 23, 1999
Filed:
Feb. 12, 1998
Applicant:
Inventors:
Shigeru Miyazaki, Yokohama, JP;
Yoji Takeuchi, Yokohama, JP;
Assignee:
Mitsubishi Pencil Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D / ; C09D / ; C09D / ; C09D / ;
U.S. Cl.
CPC ...
523161 ; 106 3113 ; 106 316 ; 106 3164 ; 106 3169 ; 106 317 ; 106 3189 ;
Abstract
A pseudo-plastic aqueous ink for a ball point pen contains at least a pigment, a dispersant, water, a polar solvent and a thickener and further contains 0.05 to 7% by weight of the silicone base surfactant or 0.05 to 5% by weight of a silicone base surfactant and 0.05 to 5% by weight of sodium dialkyl sulfosuccinate based on the whole amount of the ink.