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:
Nov. 13, 2007
Filed:
Mar. 24, 2005
Satoshi Takeda, Tokyo, JP;
Masumi Kobayashi, Toyohashi, JP;
Shinya Sueyoshi, Toyohashi, JP;
Masatoshi Kamata, Otake, JP;
Ikuo Kinoshita, Toyohashi, JP;
Yoshihito Nakahara, Toyohashi, JP;
Satoshi Takeda, Tokyo, JP;
Masumi Kobayashi, Toyohashi, JP;
Shinya Sueyoshi, Toyohashi, JP;
Masatoshi Kamata, Otake, JP;
Ikuo Kinoshita, Toyohashi, JP;
Yoshihito Nakahara, Toyohashi, JP;
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Abstract
A hollow fiber membrane module using a sheet-form hollow fiber membrane having excellent cleaning properties in which the pressure resistance of a hollow fiber membrane anchor section does not deteriorate, even when the membrane area increases; a hollow fiber membrane module unit using the module; a membrane filtration device using the unit; and an operation method therefor are provided. The hollow fiber membrane module comprises sheet-form hollow fiber membranes and an anchoring member which anchors the sheet-form hollow fiber membranes in a roughly parallel manner while maintaining in an open state at least one end portion of the sheet-form hollow fiber membranes. The shape of an end face of a side of the anchoring member from which the hollow fiber membranes are exposed is roughly rectangular, and the shape of an end face of a side of the anchoring member toward which the hollow fiber membranes open is roughly circular.