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:
Jun. 11, 2002
Filed:
Sep. 07, 2000
Applicant:
Inventors:
Assignee:
Kurita Water Industries Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25B 1/300 ; B01D 6/148 ;
U.S. Cl.
CPC ...
C25B 1/300 ; B01D 6/148 ;
Abstract
The electrodeionization apparatus is improved in concentration polarization of the ingredients including ions in the concentrating compartment so as to obtain the produced water with high purity. The electrodeionization apparatus has a spacer composed of a mesh and a frame-shaped gaskets superposed on the periphery of the mesh. The mesh has a thickness of 0.2 to 0.5 mm and the gaskets have thicknesses of equal to or less than 0.1 mm.