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. 20, 2001
Filed:
Oct. 23, 1997
Applicant:
Inventors:
Hiroe Niimura, Nagano, JP;
Toshio Kumagai, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/165 ; B41J 2/17 ; G01D 1/100 ;
U.S. Cl.
CPC ...
B41J 2/165 ; B41J 2/17 ; G01D 1/100 ;
Abstract
An ink coagulating agent of metal salt is provided in a waste ink tank. The coagulating agent is dissolved in aqueous solvent to be a metal salt solution. Absorbers of a porous material are impregnated with the metal salt solution and disposed in the waste ink tank.