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Title:
MOISTURE DETECTION SENSOR
Document Type and Number:
WIPO Patent Application WO/2022/149320
Kind Code:
A1
Abstract:
In this invention, sensing electrodes (31, 32) are placed on a first main surface (201) of a substrate (20) and obtain a capacitance that varies according to the moisture included in soil (90). Wiring electrodes (411, 412) are placed on the first main surface (201) of the substrate (20) and are connected to the sensing electrode (31). The wiring electrodes (411, 412) are placed to one side end (S21) side of the sensing electrode placement area where the sensing electrodes (31, 32) are placed on the first main surface (201). The wiring electrode (412) and wiring electrode (411) are placed in the order listed from the sensing electrode placement area side. The wiring electrode (411) is wider than the wiring electrode (412).

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Inventors:
TAKEUCHI MASAKI (JP)
HARA TETSUZO (JP)
Application Number:
PCT/JP2021/036926
Publication Date:
July 14, 2022
Filing Date:
October 06, 2021
Export Citation:
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Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
G01N27/22
Domestic Patent References:
WO2011158812A12011-12-22
WO2021193217A12021-09-30
Foreign References:
JP2017151042A2017-08-31
JP3215629U2018-04-05
JP2016038697A2016-03-22
US20160139021A12016-05-19
CN206832735U2018-01-02
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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