公开(公告)号：US12012501B2

公开(公告)日：2024-06-18

申请号：US17288286

申请日：2019-09-27

申请人： NISSHINBO HOLDINGS INC.

发明人： Hideshi Tomita ,  Takashi Suzuki ,  Yoshitaka Saito ,  Nana Isomoto

IPC分类号： C08K7/28 ,  B06B1/00 ,  C08G59/18 ,  C08G59/24 ,  C08G59/68 ,  C08K3/36 ,  C08K7/22 ,  C08L63/00 ,  C08L101/12 ,  G10K11/02 ,  H04R17/00

CPC分类号： C08K7/28 ,  C08G59/184 ,  C08G59/245 ,  C08G59/686 ,  C08K3/36 ,  C08K7/22 ,  C08L63/00 ,  C08L101/12 ,  G10K11/02 ,  B06B1/00 ,  C08K2201/005 ,  C08K2201/006 ,  H04R17/00 ,  C08L101/12 ,  C08K3/36 ,  C08K7/22 ,  C08L101/12 ,  C08K3/36 ,  C08K7/26 ,  C08K7/28 ,  C08L63/00 ,  C08K3/36 ,  C08L63/00

摘要： The present invention provides a resin composition for an acoustic matching layer which maintains uniform dispersibility of a hollow filler, can suppress bubble trapping, and is excellent in moldability and handleability. The resin composition for an acoustic matching layer, comprises a resin, a hollow filler, and a thixotropy imparting agent, wherein the resin composition has a viscosity measured using a B-type viscometer with rotor No. 4 at a rotation speed of 0.3 rpm at 25° C. of 1130 to 4000 Pa·s, and has a thixotropy index expressed by the ratio (V1/V2) between a viscosity (V1) measured using a B-type viscometer with rotor No. 4 at a rotation speed of 0.3 rpm and a viscosity (V2) measured using a B-type viscometer with rotor No. 4 at a rotation speed of 1.5 rpm, at 50° C., of 3.0 to 5.0.

公开(公告)号：US10997961B2

公开(公告)日：2021-05-04

申请号：US16469038

申请日：2018-12-11

申请人： NISSHINBO HOLDINGS INC. ,  UEDA JAPAN RADIO CO., LTD.

发明人： Hideshi Tomita ,  Takashi Suzuki ,  Shigeo Kobayashi

IPC分类号： G10K11/30 ,  H03H9/145 ,  H03H9/25

摘要： The present invention is aimed to provide, as an acoustic lens propagating a sonic wave having a wavelength λ of 100 μm or less, an acoustic lens capable of exhibiting excellent acoustic characteristics in response to the wavelength λ of the sonic wave to be propagated and a production method thereof. The acoustic lens is an acoustic lens 1 to be used for propagating a sonic wave having a wavelength λ of 100 μm or less, wherein the acoustic lens contains a silicone resin and silica particles, an average primary particle diameter of the silica particles is 15 nm or more, and a particle diameter (D90) of 90% of a cumulative percentage in cumulative particle size distribution of the silica particles is less than ⅛ of the wavelength λ of the sonic wave to be propagated.