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:
Feb. 07, 1989
Filed:
Oct. 29, 1986
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01J / ;
U.S. Cl.
CPC ...
210688 ; 210739 ; 210746 ; 210 961 ; 2101951 ; 210263 ; 106 20 ; 106 22 ; 106 23 ; 346-11 ; 3461 / ;
Abstract
A system for purifying dye comprising a means for producing a dye solution and a means for treating the dye solution which captures metal ions in said dye solution by carrying out ion-exchange separation.