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. 29, 2016
Filed:
Dec. 22, 2011
Shinichi Chikura, Osaka, JP;
Toshimitsu Hamada, Osaka, JP;
Yasuhiro Uda, Osaka, JP;
Kazuhito Yoshida, Osaka, JP;
Shinichi Chikura, Osaka, JP;
Toshimitsu Hamada, Osaka, JP;
Yasuhiro Uda, Osaka, JP;
Kazuhito Yoshida, Osaka, JP;
NITTO DENKO CORPORATION, Osaka, JP;
Abstract
A spiral separation membrane element (A) includes: a wound body () including a separation membrane; a core tube () that penetrates the wound body () along the central axis of the wound body (); and a joining portion () that joins the wound body () to the core tube () at at least one end face () of the wound body (). The joining portion () has a holding portion () disposed inwardly of the end face () of the wound body () and an extending portion () formed integrally with the holding portion (). The spiral separation membrane element (A) further includes a restraining member (A) that secures the extending portion () to the core tube ().