Title:
ELECTRET CAPACITOR SENSOR AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2024/090331
Kind Code:
A1
Abstract:
[Problem] To improve the sensitivity of an electret capacitor sensor. [Solution] This electret capacitor sensor 1000 includes: an insulating electrode 100 that includes a first electrode 110 and an insulating layer 120; and an electret electrode 200 that includes a second electrode 210 and an electret layer 220, the electret electrode 200 being positioned such that the electret layer 220 and the insulating layer 120 face each other. The insulating layer 120 includes a protrusion 122, and a bottom part 124 other than the protrusion 122, on a facing surface that faces the electret layer 220. The electret electrode 200 is formed to have an undulation that corresponds to the protrusion 122 and the bottom part 124 of the insulating layer 120.
Inventors:
KAGEYAMA KENSUKE (JP)
Application Number:
PCT/JP2023/037948
Publication Date:
May 02, 2024
Filing Date:
October 20, 2023
Export Citation:
Assignee:
NATIONAL UNIV CORPORATION SAITAMA UNIV (JP)
International Classes:
H04R19/01; H04R31/00
Domestic Patent References:
| WO2009125773A1 | 2009-10-15 |
Foreign References:
| JPS514331U | 1976-01-13 | |||
| JP2019537847A | 2019-12-26 | |||
| JP2008252847A | 2008-10-16 | |||
| JP2009028808A | 2009-02-12 | |||
| US20150110309A1 | 2015-04-23 | |||
| KR20180066577A | 2018-06-19 |
Attorney, Agent or Firm:
YANARI Takahiko (JP)
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