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. 31, 2006
Filed:
Mar. 05, 2004
Hiroyuki Oyachi, Handa, JP;
Hitoshi Yonekawa, Chita-gun, JP;
Nobuhiro Aoki, Nagoya, JP;
Naoki Murata, Chita-gun, JP;
Hiroyuki Oyachi, Handa, JP;
Hitoshi Yonekawa, Chita-gun, JP;
Nobuhiro Aoki, Nagoya, JP;
Naoki Murata, Chita-gun, JP;
NGK Insulators, Ltd., , JP;
Abstract
A filtering method including the steps of preparing a water purifying apparatuswith a cell structurehaving units for constituting cell structure, and a cap portion, and making raw water flow into cellsfrom one end, and filtered by a partition wallsto take out filtrate water from the side of an outer peripheral surface. The cell structureis so constructed that the ratio of maximum value to minimum value in water permeability among the partition wallsprovided therein is within a range from of 110 to 300% in terms of percentage, and the cellslocated on the side of an outer peripheryof the cell structurehave a greater water permeability.