Title:
PRESSURE WAVE GENERATING ELEMENT AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/176651
Kind Code:
A1
Abstract:
This pressure wave generating element comprises a support body 10 and a fiber layer 20 that is provided upon the support body 10 and that generates heat from the application of electric current. The fiber layer 20 includes fibers having a metal coating at least partially provided to the surfaces thereof. The fiber layer 20 is formed from a fiber film having an average pore size in the range of 0.1-1.0 μm. As a result of this configuration, a pressure wave generating element having improved sound pressure and suitable electrical resistance is obtained.
Inventors:
FUKAMACHI KOHEI (JP)
Application Number:
PCT/JP2022/004504
Publication Date:
August 25, 2022
Filing Date:
February 04, 2022
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H04R23/00; H04R31/00
Domestic Patent References:
| WO2021039169A1 | 2021-03-04 |
Foreign References:
| JP2018133625A | 2018-08-23 |
Other References:
ALI E. ALIEV, NATHANAEL K. MAYO, MONICA JUNG DE ANDRADE, RAQUEL O. ROBLES, SHAOLI FANG, RAY H. BAUGHMAN, MEI ZHANG, YONGSHENG CHEN: "Alternative Nanostructures for Thermophones", ACS NANO, AMERICAN CHEMICAL SOCIETY, US, vol. 9, no. 5, 26 May 2015 (2015-05-26), US , pages 4743 - 4756, XP055288614, ISSN: 1936-0851, DOI: 10.1021/nn507117a
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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