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Title:
ACOUSTIC LENS, METHOD FOR MANUFACTURING SAME, AND ACOUSTIC WAVE PROBE
Document Type and Number:
WIPO Patent Application WO/2019/142547
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: an acoustic lens which is for propagating a sound wave having a wavelength λ of 100 μm or less and can exhibit excellent acoustic characteristics depending on the wavelength λ of the sound wave to be propagated; and a method for manufacturing said acoustic lens. This acoustic lens 1 is used to propagate a sound wave having a wavelength λ of 100 μm or less and is formed by including a silicone resin and silica particles, wherein the average primary particle diameter of the silica particles is 15 nm or more and the particle diameter (D90) of a 90% cumulative percentage in the cumulative particle size distribution of the silica particles is less than 1/8 of the wavelength λ of the propagating sound wave.

Inventors:
TOMITA, Hideshi (1-2-3 Onodai, Midori-ku, Chiba-sh, Chiba 56, 〒2670056, JP)
SUZUKI, Takashi (1-2-3 Onodai, Midori-ku, Chiba-sh, Chiba 56, 〒2670056, JP)
KOBAYASHI, Shigeo (LTD. Komaki Factory 1717-9, Suwagata, Ueda-sh, Nagano 32, 〒3860032, JP)
Application Number:
JP2018/045543
Publication Date:
July 25, 2019
Filing Date:
December 11, 2018
Export Citation:
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Assignee:
NISSHINBO HOLDINGS INC. (2-31-11, Nihonbashi Ningyo-cho Chuo-k, Tokyo 50, 〒1038650, JP)
UEDA JAPAN RADIO CO., LTD. (10-19, Fumiiri 2-chome Ueda-sh, Nagano 08, 〒3868608, JP)
International Classes:
H04R17/00; A61B8/00; H04R1/34; H04R31/00
Foreign References:
JP2017163331A2017-09-14
JP2012034160A2012-02-16
JP2015012943A2015-01-22
JP2016046811A2016-04-04
JP2005125071A2005-05-19
Attorney, Agent or Firm:
ARINAGA, Shun et al. (OHTANI PATENT OFFICE, Toranomon ES Bldg. 7F. 25-2, Toranomon 3-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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