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:
Mar. 04, 2025
Filed:
Jan. 04, 2021
Nitto Denko Corporation, Ibaraki, JP;
Tomotsugu Miyabe, Osaka, JP;
Atsuhito Komoto, Osaka, JP;
NITTO DENKO CORPORATION, Osaka, JP;
Abstract
A separation membrane () of the present disclosure includes: a separation functional layer () composed of a polyamide containing, as a monomer unit, at least one selected from the group consisting of piperazine and a piperazine derivative; and a coating () covering the separation functional layer () and containing a polymer having a repeating unit represented by the following formula (1). In the formula (1), Nis a nitrogen atom constituting a quaternary ammonium cation, and Rand Rare each independently a substituent containing a carbon atom bonded to the nitrogen atom.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile