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:
Jul. 24, 2018
Filed:
Oct. 21, 2014
Toyobo Co., Ltd., Osaka-shi, Osaka, JP;
Katsushige Marui, Iwakuni, JP;
Koji Tokunaga, Iwakuni, JP;
Yasuki Terashima, Iwakuni, JP;
Hajime Suenaga, Iwakuni, JP;
Atsuo Kumano, Iwakuni, JP;
TOYOBO CO., LTD., Osaka, JP;
Abstract
A hollow-fiber membrane element for forward osmosis which is a both open-ended hollow-fiber membrane element in which both ends of a wound hollow-fiber membrane body are opened, the wound hollow-fiber membrane body having hollow-fiber membranes arranged in an intersecting manner by winding the hollow-fiber membranes around a porous distribution pipe in a helical manner, wherein a) the number of winds per element length in a region from the outermost layer of the wound hollow-fiber membrane body to at least one eighth of the thickness of the wound hollow-fiber membrane body is 0.33 to 1.75, and b) the number of winds per element length in a region from the innermost layer of the wound hollow-fiber membrane body to at least one fourth of the thickness of the wound hollow-fiber membrane body is greater than 1.75.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile