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:
Dec. 06, 2016
Filed:
Aug. 13, 2010
Hirokazu Fujimura, Tokyo, JP;
Masatoshi Hashino, Tokyo, JP;
Noboru Kubota, Tokyo, JP;
Hideto Matsuyama, Kobe, JP;
Hirokazu Fujimura, Tokyo, JP;
Masatoshi Hashino, Tokyo, JP;
Noboru Kubota, Tokyo, JP;
Hideto Matsuyama, Kobe, JP;
ASAHI KASEI CHEMICALS CORPORATION, Tokyo, JP;
Abstract
A porous hollow fiber membrane that is suitable for treatment of liquid containing an inorganic substance and/or an organic substance, is obtained at a low cost performance, and has high water permeability performance, fretting resistance, and drying resistance. A deformed porous hollow fiber membrane according to the present invention is composed of a thermoplastic resin and includes a continuous asperity provided on the periphery in the longitudinal direction of the membrane, in which the periphery of the hollow fiber membrane in the circumferential direction includes continuous projected and depressed parts.