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Title:
ACOUSTIC MATCHING LAYER
Document Type and Number:
WIPO Patent Application WO/2023/095883
Kind Code:
A1
Abstract:
This acoustic matching layer contains: amorphous carbon; and, dispersed in the amorphous carbon, carbon particles and secondary particles having a higher density than the amorphous carbon.

Inventors:
OHNO TOSHIKI (JP)
SATAKE ATSUNORI (JP)
Application Number:
PCT/JP2022/043583
Publication Date:
June 01, 2023
Filing Date:
November 25, 2022
Export Citation:
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Assignee:
MITSUBISHI PENCIL CO (JP)
International Classes:
H04R17/00; H04R1/00; H04R31/00
Domestic Patent References:
WO2015194602A12015-12-23
WO2021039374A12021-03-04
Foreign References:
JP2015082764A2015-04-27
JP2015093012A2015-05-18
JP2004032425A2004-01-29
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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