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:
Mar. 09, 2021
Filed:
Nov. 16, 2018
Hitachi, Ltd., Tokyo, JP;
Hironori Wakana, Tokyo, JP;
Masuyoshi Yamada, Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
There is provided a moisture detection element including: an insulating portion composed of an insulating material; a voltage-applied electrode to which a voltage is applied; a detection electrode configured to output a voltage signal corresponding to a current flowing through an electric path including water molecules adhering to the surface of the insulating portion in accordance with the voltage applied to the voltage-applied electrode; and a conductive film that is conductive and electrically insulated from the voltage-applied electrode and the detection electrode, in which the voltage-applied electrode, the detection electrode, and the conductive film are disposed on the insulating portion. When dew condensation is detected, a DC voltage is applied to the voltage-applied electrode.