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.

Date of Patent:
Oct. 14, 2025

Filed:

May. 16, 2023
Applicants:

Sintokogio, Ltd., Nagoya, JP;

National University Corporation Toyohashi University of Technology, Toyohashi, JP;

Inventors:

Manase Mizutani, Nagoya, JP;

Toshihiko Noda, Toyohashi, JP;

Kazuaki Sawada, Toyohashi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/21 (2006.01);
U.S. Cl.
CPC ...
G01N 21/21 (2013.01);
Abstract

A gas measuring device includes a gas chamber into which a sample gas containing a target gas is introduced, a gas detection unit configured to detect the target gas contained in the sample gas introduced into the gas chamber, an irradiation unit configured to apply polarized light to the sample gas introduced into the gas chamber using a polarizer, an optical rotation measurement unit configured to measure optical rotation between the polarized light applied from the irradiation unit to the sample gas and the polarized light that has been transmitted through the sample gas using an analyzer, and an output unit configured to output information on the target gas detected by the gas detection unit and information on the optical rotation of the polarized light detected by the optical rotation measurement unit in association with each other.


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