公开(公告)号：US20180033530A1

公开(公告)日：2018-02-01

申请号：US15552415

申请日：2016-02-24

Applicant: DOWA ELECTRONICS MATERIALS CO., LTD.

Inventor： Toshihiko UEYAMA ,  Masahiro GOTOH ,  Takayuki YOSHIDA ,  Takuyuki BABA

IPC: H01F1/26 ,  C08L71/12 ,  C08L25/06 ,  C08K3/08 ,  C08K9/04

CPC classification number: H01F1/26 ,  C08K3/08 ,  C08K9/04 ,  C08L25/06 ,  C08L71/12 ,  C08L71/126 ,  C08L25/08

Abstract: An object of the present invention is to provide a magnetic compound excellent in high-frequency property and excellent in mechanical strength and related materials thereof by using at least one of resins selected from syndiotactic polystyrene (SPS) resin and modified polyphenylene ether (m-PPE) resin, including at least one of resins selected from syndiotactic polystyrene (SPS) resin and modified polyphenylene ether (m-PPE) resin, wherein content of the resin is 21 mass % or more.

公开(公告)号：US20180218814A1

公开(公告)日：2018-08-02

申请号：US15578411

申请日：2016-06-01

Applicant: DOWA ELECTRONICS MATERIALS CO., LTD.

Inventor： Takayuki YOSHIDA ,  Masahiro GOTOH ,  Toshihiko UEYAMA ,  Takuyuki BABA ,  Toru SUZUKI ,  Koji TANAKA

IPC: H01F1/20 ,  C08K3/08 ,  C08K9/04 ,  C08K3/40 ,  C08K7/14

CPC classification number: H01F1/20 ,  C08K3/08 ,  C08K3/40 ,  C08K7/14 ,  C08K9/04 ,  C08K2003/0843 ,  C08K2003/0856 ,  C08K2201/006 ,  C08K2201/01 ,  C08L81/02 ,  H01F1/26

Abstract: An object is to provide a magnetic compound excellent in high frequency properties and excellent in mechanical strength, and its related items, using the polyarylene sulfide resin, and to provide a technique regarding the magnetic compound having a metal magnetic powder and a polyarylene sulfide resin, and satisfying both mechanical strength and high frequency properties.

公开(公告)号：US20180151279A1

公开(公告)日：2018-05-31

申请号：US15578471

申请日：2016-06-01

Applicant: DOWA ELECTRONICS MATERIALS CO., LTD.

Inventor： Toshihiko UEYAMA ,  Masahiro GOTOH ,  Takayuki YOSHIDA ,  Takuyuki BABA

IPC: H01F1/26 ,  B22F1/00

CPC classification number: H01F1/26 ,  B22F1/0059 ,  B22F1/02 ,  B22F2001/0066 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02 ,  B22F3/1017 ,  B22F3/02 ,  B22F5/10

Abstract: A magnetic compound having a small dielectric loss and an antenna constituted by the magnetic compound and an electronic device incorporating the antenna are provided by a metal magnetic powder which is well dispersed in a resin having small dielectric loss, and a magnetic powder composite including: a metal magnetic powder; and one or more elements selected from carboxylic acid or its anhydride, aromatic carboxylic acid ester, and a derivative thereof, having a property that real part μ′ permeability is 1.45 or more, tan δμ is 0.1 or less, tan δε is 0.05 or less at a measuring frequency of 2 GHz, when a magnetic powder composite is prepared by adding 5 parts by mass of one or more elements selected from the carboxylic acid or its anhydride, the aromatic carboxylic acid ester, and the derivative thereof to 100 parts by mass of the metal magnetic powder.