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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.:

US 12544720 B1

PDFFull Text
Date of Patent:
Feb. 10, 2026

Filed:

Jan. 25, 2021

Method for producing gas separation membrane, and gas separation membrane

Applicants:

Takagi Co., Ltd., Kitakyushu, JP;

Shinshu University, Matsumoto, JP;

Inventors:

Toshio Takagi, Kitakyushu, JP;

Yasushi Shimizu, Kitakyushu, JP;

Katsuyuki Murata, Kitakyushu, JP;

Katsumi Kaneko, Nagano, JP;

Radovan Kukobat, Nagano, JP;

Assignees:

TAKAGI Co., Ltd., Kitakyushu, JP;

Shinshu University, Matsumoto, JP;

Attorney:

Studebaker Brackett PLLC

Primary Examiner:

Anthony R Shumate

Int. Cl.
CPC ...
B01D 53/22 (2006.01); B01D 67/00 (2006.01); B01D 69/02 (2006.01); B01D 69/10 (2006.01); B01D 71/02 (2006.01);
U.S. Cl.
CPC ...
B01D 67/0055 (2013.01); B01D 53/228 (2013.01); B01D 67/0083 (2013.01); B01D 69/02 (2013.01); B01D 69/10 (2013.01); B01D 71/02 (2013.01); B01D 71/0211 (2022.08); B01D 71/0281 (2022.08); B01D 2323/081 (2022.08); B01D 2323/10 (2013.01); B01D 2323/21819 (2022.08); B01D 2325/02831 (2022.08); B01D 2325/04 (2013.01);
Abstract

A method for producing a gas separation membrane includes a step of leaving a dispersion liquid to stand still, the dispersion liquid being obtained by mixing zeolite microcrystalline bodies formed from MFI zeolite and graphene oxide with pure water, and covering the periphery of the zeolite microcrystalline bodies with the graphene oxide; a step of drying the dispersion liquid after being left to stand to obtain a powder; a step of subjecting the powder to a reduction treatment of the graphene oxide by means of heating; and a step of pressure-forming the powder after the reduction treatment so as to be formed into a membrane form.

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Takagi, Toshio. (2026). Method for producing gas separation membrane, and gas separation membrane (U.S. Patent No. 12544720). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12544720

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