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:
Jan. 11, 2000
Filed:
Sep. 25, 1997
Applicant:
Inventors:
Shoji Saibara, Toride, JP;
Sachie Kawadu, Toride, JP;
Shigeo Aoyama, Ibaraki, JP;
Yuichi Sakurai, Toride, JP;
Assignee:
Hitachi Maxell, Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09D / ;
U.S. Cl.
CPC ...
106 3186 ; 106 3189 ;
Abstract
A pigment ink for ink-jet recording comprises a pigment, a polyethylene oxide-containing dispersing agent, a water-soluble organic solvent, polyethylene oxide, and water. In place of polyethylene oxide, it is possible to use a water-soluble compound having a structure in which two or three hydroxyl groups are joined to a hydrocarbon having a number of carbons of 4 to 6. The ink does not cause any head clogging, and it is excellent in printing quality.