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. 14, 2020
Filed:
Jun. 11, 2018
Applicant:
Figaro Engineering Inc., Minoo-shi, JP;
Inventor:
Yoshihiro Yamamoto, Minoo, JP;
Assignee:
Figaro Engineering Inc., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/404 (2006.01); G01N 27/407 (2006.01); G01N 27/30 (2006.01); G01N 27/12 (2006.01); G01N 27/416 (2006.01);
U.S. Cl.
CPC ...
G01N 27/404 (2013.01); G01N 27/121 (2013.01); G01N 27/30 (2013.01); G01N 27/4078 (2013.01); G01N 27/416 (2013.01);
Abstract
The output of the electrochemical gas sensor is amplified, and the ambient temperature is measured by means of a temperature sensor. When the ambient temperature is above or equal to a predetermined temperature, a standard value is generated and stored and is increased when the output of the amplification circuit is larger than the standard value, and a gas is detected according to the difference between the output of said amplification circuit and the standard value.