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:
Aug. 21, 2007
Filed:
May. 30, 2003
Hirofumi Morikawa, Kusatsu, JP;
Shin-ichi Minegishi, Otsu, JP;
Shuji Furuno, Kyoto, JP;
Toshyuki Ishizaki, Gamo-gun, JP;
Masahiro Henmi, Otsu, JP;
Hirofumi Morikawa, Kusatsu, JP;
Shin-ichi Minegishi, Otsu, JP;
Shuji Furuno, Kyoto, JP;
Toshyuki Ishizaki, Gamo-gun, JP;
Masahiro Henmi, Otsu, JP;
Toray Industries, Inc., Tokyo, JP;
Abstract
The object of the present invention is to provide a porous membrane having a high strength and excellent water permeability and rejection properties. The porous membrane of the present invention has both a three-dimensional network structure and a spherical structure. The porous membrane of the present invention is suitably used for water treatment membranes, battery separators, charged membranes, fuel cells, blood purification membranes, and the like.