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. 26, 2002
Filed:
Feb. 03, 2000
Applicant:
Inventors:
Hiroshi Takahashi, Chiba, JP;
Nobuo Uotani, Chiba, JP;
Yuji Itoh, Chiba, JP;
Toshio Koshikawa, Chiba, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
C07D / ;
Abstract
An additive for inkjet printing, comprising a stabilized ascorbic acid derivative. Also disclosed are a recording solution, a method for preventing discoloration and fading of an image, and a recording sheet, each using the additive. The color change of an image can be prevented by incorporating the stabilized ascorbic acid derivative into an inkjet-printed image.