Title:
MOISTURE DETECTION SENSOR
Document Type and Number:
WIPO Patent Application WO/2021/230263
Kind Code:
A1
Abstract:
This moisture detection sensor (10) comprises a substrate (20) and a porous body (30). The substrate (20) has a main surface (201) and a main surface (202) and has an insulating property. The porous body (30) is disposed on the substrate (20) and has permittivity varying according to the amount of contained moisture. The porous body (30) comprises: a first portion (31) disposed on the main surface (201) side; a third portion (33) disposed on the main surface (202) side; and a second portion (341) and a second portion (342) that are respectively disposed in a recess section (61) and a recess section (62) of the substrate (20). The area of the third portion (33) is greater than the area of the second portion (341) and the area of the second portion (342).
Inventors:
HARA TETSUZO (JP)
ISHII MASAHIRO (JP)
ISHII MASAHIRO (JP)
Application Number:
PCT/JP2021/017964
Publication Date:
November 18, 2021
Filing Date:
May 12, 2021
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
G01N27/22
Domestic Patent References:
| WO2017150107A1 | 2017-09-08 | |||
| WO2018062379A1 | 2018-04-05 |
Foreign References:
| JP2013057574A | 2013-03-28 | |||
| US20150129538A1 | 2015-05-14 | |||
| JP2008032550A | 2008-02-14 |
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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