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:
Sep. 08, 2026
Filed:
Nov. 01, 2021
Ngk Insulators, Ltd., Nagoya-City, JP;
Kenichi Noda, Nagoya-City, JP;
Naoto Kinoshita, Nagoya-City, JP;
Ryotaro Yoshimura, Kasugai-City, JP;
NGK INSULATORS, LTD., Nagoya-City, JP;
Abstract
A zeolite membrane complex includes a porous support and a zeolite membrane formed on the support. The zeolite membrane contains Al, P, and a tetravalent element. The composition of the zeolite membrane measured by X-ray photoelectron spectroscopy is such that the molar ratio of the tetravalent element to Al is higher than or equal to 0.01 and lower than or equal to 0.5, the molar ratio of P to Al is higher than or equal to 0.5 and lower than 1.0, and the total molar ratio of P and the tetravalent element to Al is higher than or equal to 0.9 and lower than or equal to 1.3. The zeolite membrane contains a zeolite crystal with an accessible volume higher than or equal to 450 Å.