Title:
PRESSURE WAVE GENERATING ELEMENT AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/176637
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 fb having a metal coating at least partially provided to the surfaces thereof. The fibers fb are oriented along a predetermined direction (x direction). 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/JP2022/004290
Publication Date:
August 25, 2022
Filing Date:
February 03, 2022
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H04R23/00; H04R31/00
Foreign References:
| JP2005256215A | 2005-09-22 | |||
| JP2009296591A | 2009-12-17 | |||
| JPH11300274A | 1999-11-02 |
Other References:
ALIEV ALI E., MAYO NATHANAEL K., JUNG DE ANDRADE MONICA, ROBLES RAQUEL O., FANG SHAOLI, BAUGHMAN RAY H., ZHANG MEI, CHEN YONGSHENG: "Alternative Nanostructures for Thermophones", ACS NANO, AMERICAN CHEMICAL SOCIETY, US, vol. 9, no. 5, 26 May 2015 (2015-05-26), US , pages 4743 - 4756, XP055960277, ISSN: 1936-0851, DOI: 10.1021/nn507117a
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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