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. 22, 2026
Filed:
Nov. 30, 2023
Ngk Insulators, Ltd., Nagoya-City, JP;
Ko Kobayashi, Nagoya-City, JP;
Katsuya Shimizu, Kasugai-City, JP;
Aya Miura, Kariya-City, JP;
Kenichi Noda, Nagoya-City, JP;
NGK INSULATORS, LTD., Nagoya-City, JP;
Abstract
A mixed gas separation method includes a step of supplying a mixed gas to the separation membrane and causing a gas with high permeability in the mixed gas to permeate through the separation membrane. In the step, when ΔP is a difference between a gas pressure on the primary side of the separation membrane, i.e., a feed pressure, and a gas pressure on the secondary side of the separation membrane, i.e., a permeate pressure, and A is a Joule-Thomson coefficient, a difference ΔT between a gas temperature on the primary side of the separation membrane, i.e., a feed temperature, and a gas temperature on the secondary side of the separation membrane, i.e., a permeate temperature, is made less than 90% of A·ΔP by setting the Nu number in the mixed gas to be greater than or equal to 2 and less than or equal to 10.