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:
Apr. 02, 2024
Filed:
Oct. 17, 2019
Toyobo Co., Ltd., Osaka, JP;
Takahito Nakao, Osaka, JP;
Hidehiko Sakurai, Osaka, JP;
TOYOBO MC CORPORATION, Osaka, JP;
Abstract
A hollow fiber membrane element, comprising: a core tube comprising a side face having a plurality of pores; and a hollow fiber membrane group consisting of a plurality of hollow fiber membranes disposed around the core tube, the hollow fiber membrane element being a both open-ended type hollow fiber membrane element in which both ends of the core tube and the plurality of hollow fiber membranes are open. The hollow fiber membrane group includes a first hollow fiber membrane layer composed of a plurality of first hollow fiber membranes disposed so as to surround the core tube and a second hollow fiber membrane layer composed of a plurality of second hollow fiber membranes disposed so as to surround the first hollow fiber membrane layer, and a permeability coefficient of the plurality of first hollow fiber membranes is smaller than a permeability coefficient of the plurality of second hollow fiber membranes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile