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:
Sep. 24, 2024

Filed:

Mar. 25, 2022
Applicant:

Asahi Kasei Microdevices Corporation, Tokyo, JP;

Inventors:

Takaaki Furuya, Tokyo, JP;

Shota Isshiki, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/3504 (2014.01);
U.S. Cl.
CPC ...
G01N 21/3504 (2013.01); G01N 2201/062 (2013.01);
Abstract

A gas detection devicecomprises: a light emitterconfigured to emit light of a wavelength band including a wavelength absorbed by a detection target gas; a light detectorhaving sensitivity to the wavelength band; a package; a light guideconfigured to guide the light to the light detector; a jointjoining the packageand the light guide; and a heat insulatorlocated in a gap between the packageand the light guide, wherein part of a surface of the packagefacing the light guidehas a proximity region D where a distance between the packageand the light guideis 500 μm or less, and at least part of the heat insulatorand at least part of the jointare located adjacent to each other in part of the proximity region D.


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