Title:
ACOUSTIC MATCHING LAYER
Document Type and Number:
Japanese Patent JP2023079663
Kind Code:
A
Abstract:
To provide a novel acoustic matching layer which allows the balance between an acoustic velocity and a density to be controlled while decreasing the change in acoustic impedance.SOLUTION: An acoustic matching layer according to the present invention comprises: amorphous carbon; and carbon particles dispersed in the amorphous carbon. The content of the carbon particles is 40 mass% or less to a total mass of the acoustic matching layer.SELECTED DRAWING: None
Inventors:
ONO TOSHIKI
SATAKE ATSUNORI
SATAKE ATSUNORI
Application Number:
JP2021193241A
Publication Date:
June 08, 2023
Filing Date:
November 29, 2021
Export Citation:
Assignee:
MITSUBISHI PENCIL CO
International Classes:
H04R1/00; H04R17/00; H04R31/00
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mihashi
Kentaro Ito
Yoshiki Kurata
Shinji Mihashi
Kentaro Ito
Yoshiki Kurata
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