Title:
PRESSURE WAVE GENERATING ELEMENT AND MANUFACTURING METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2021/039589
Kind Code:
A1
Abstract:
Provided is a pressure wave generating element with improved sound pressure and suitable electrical resistance. The pressure wave generating element comprises a supporting body 10 and a heat generating element film 22 that is provided above the support body 10 and generates heat by way of electric current. The heat generating element film 22 has a metal porous structure.
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Inventors:
GOTO MASATO (JP)
Application Number:
PCT/JP2020/031476
Publication Date:
March 04, 2021
Filing Date:
August 20, 2020
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
B06B1/02; H04R23/00
Domestic Patent References:
| WO2008029451A1 | 2008-03-13 |
Foreign References:
| JP2005073197A | 2005-03-17 |
Other References:
MORRISH, R. ET AL.: "Formation of nanoporous Au by dealloying AuCu thin films in HN 03", SCRIPTA MATERIALIA, vol. 64, no. 9, pages 856 - 859, XP028366245, DOI: 10.1016/j.scriptamat.2011.01.021
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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