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. 02, 2008

Filed:

Aug. 25, 2005
Applicants:

Hidetoshi Oishi, Utsunomiya, JP;

Hirotoshi Inoue, Utsunomiya, JP;

Takashi Sasaki, Shioya-gun, JP;

Takashi Saito, Shioya-gun, JP;

Inventors:

Hidetoshi Oishi, Utsunomiya, JP;

Hirotoshi Inoue, Utsunomiya, JP;

Takashi Sasaki, Shioya-gun, JP;

Takashi Saito, Shioya-gun, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 25/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

A gas sensor includes a gas detection chamber into which a detection gas is introduced, a detecting element and a compensating element each disposed in the gas detection chamber, a detection device which detects the concentration of a detection target gas contained in the detection gas, in accordance with a difference in electrical resistance values between the detecting element and the compensating element, and a dehumidifying element which is provided in the gas detection chamber, and reversibly absorbs water contained in the detection gas and drains off the water absorbed in the dehumidifying element.


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