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:
Jul. 15, 2025
Filed:
Feb. 26, 2021
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventor:
Atsuo Nakao, Nara, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 33/00 (2006.01); G01N 1/34 (2006.01); G01N 27/12 (2006.01);
U.S. Cl.
CPC ...
G01N 33/007 (2013.01); G01N 1/34 (2013.01); G01N 27/121 (2013.01); G01N 33/0072 (2024.05);
Abstract
A gas detection system includes a gas sensor, and a filter unit. The gas sensor is configured to detect detection target molecules. The filter unit is disposed at a reference gas supply passage. The reference gas supply passage connects a reference gas inlet port from which a reference gas is introduced, and a sensor chamber in which the gas sensor is housed. The filter unit includes at least a first filter configured to reduce the detection target molecules in the reference gas, and a second filter configured to reduce moisture in the reference gas. Each of the first filter and the second filter has a separation membrane including hollow fibers.