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:
Oct. 12, 2021
Filed:
May. 29, 2019
Applicant:
Denso Corporation, Kariya, JP;
Inventors:
Junzo Yamaguchi, Kariya, JP;
Teruaki Kaifu, Kariya, JP;
Assignee:
DENSO CORPORATION, Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 33/00 (2006.01); G01N 27/00 (2006.01); G01N 27/04 (2006.01); G01N 27/22 (2006.01); G01N 27/12 (2006.01); F02P 5/04 (2006.01); F02D 41/28 (2006.01); F02D 41/22 (2006.01); F02D 41/18 (2006.01);
U.S. Cl.
CPC ...
G01N 33/007 (2013.01); F02P 5/04 (2013.01); G01N 27/00 (2013.01); G01N 27/04 (2013.01); G01N 27/12 (2013.01); G01N 27/22 (2013.01); G01N 33/0036 (2013.01); F02D 2200/0418 (2013.01);
Abstract
A humidity measurement device is configured to measure a humidity of a gas. The humidity measurement device includes: a second-order calculation part to calculate a second-order differential value by performing second-order differentiation by time on a humidity signal output from a humidity detection part; and an adherence determination part to determine whether a liquid has adhered to the humidity detection part based on the second-order differential value obtained by the second-order calculation part.