Dowa Electronics Materials Co., Ltd.

Dowa F-tec Co., Ltd.

Takuyuki Baba

Takayuki Yoshida

Masahiro Gotoh

Toshihiko Ueyama

Toru Suzuki

Tomoya Yamada

Satoru Tsuboi

Yasunobu Mishima

Kazuyuki Uemura

Koji Tanaka

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 &#x3bc;' permeability is 1.45 or more, tan &#x3b4;&#x3bc; is 0.1 or less, tan &#x3b4;&#x3b5; 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.

Magnetic powder composite, antenna and electronic device, and method for producing the same

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.

Magnetic compound and antenna

Growing community of inventors

Tokyo, Japan

Takuyuki Baba