Murata Manufacturing Co., Ltd.

Murata Manufacturingco., Ltd.

Hironobu Kubota

Mitsunori Inoue

Gota Shinohara

Kenji Nishiyama

Yuya Ishida

Tomohiko Mori

Tomoya Ooshima

Noriko Shimizu

Yuuta Hoshino

Takao Kawachi

Keiichi Ishida

Katsutoshi Uji

Mari Yonemura

A coating process includes adding a body to a reactor; adding a metal alkoxide or precursors thereof to the reactor; adding a catalyst for the hydrolysis of the metal alkoxide to the reactor; and coating the surface of the body with a metal oxide-containing coating layer through the hydrolysis and dehydration condensation of the metal alkoxide. The addition of a body precedes at least one of the addition of a metal alkoxide or precursors thereof and the addition of a catalyst.

Coating process and method for producing electronic component

Magnetic particles, each including a core made of a magnetic material, and an insulating coating film which covers a surface of the core made of a magnetic material. The insulating coating film is formed of a sol-gel reaction product of a mixture containing a metal alkoxide and an organic phosphoric acid or a salt thereof.

Magnetic particles, dust core, and coil component

A soft magnetic material for soft magnetic particles with a high filling rate. The soft magnetic material contains first soft magnetic particles and second soft magnetic particles with a larger average particle size than the first soft magnetic particles. The first soft magnetic particles have an average particle size in the range of 0.5 to 10 μm, and the first soft magnetic particles have a nonpolar hydrocarbon group on their surfaces.

Soft magnetic material and green compact

An electronic component includes a body made of an insulator, a coating film covering the body, a conductor located in the body, and outer electrodes each of which is connected to the conductor. The insulator contains a magnetic metal powder. The coating film is composed of resin and cations of a metal which is a cationic element contained in the insulator and which has a standard electrode potential E0 of less than about 0 V.

Method for manufacturing electronic component

A coil component including an element assembly and a coil conductor embedded in the element assembly. The element assembly includes a first magnetic layer and a second magnetic layer that constitute a first principal surface and a second principal surface, respectively, where the first principal surface and the second principal surface are opposite to each other in the element assembly. The first magnetic layer has a higher relative magnetic permeability than the second magnetic layer. At least part of a winding portion of the coil conductor is located in the first magnetic layer. The first magnetic layer contains metal magnetic particles and a resin, and the second magnetic layer contains metal magnetic particles, a resin, and zinc oxide particles. The metal magnetic particles and the zinc oxide particles are dispersed in the resin.

Coil component

An electronic component includes a main body made from a metal magnetic powder and an insulating resin, a coating film covering the surface of the main body, a conductor disposed inside the main body, inorganic particles adhering to the surface of the coating film, and outer electrodes which are electrically connected to the conductor and which cover portions of the surface of the coating film while inorganic particles adhere to the portions, wherein the coating film contains a resin and metal cations.

Electronic component and method for manufacturing electronic component

Electronic component comprising magnetic metal powder

An electronic component includes a main body composed of an insulator, a coating film covering the main body, a circuit element located inside the main body, and outer electrodes. The insulator contains a metal magnetic powder. The coating film is composed of a resin and a cationic element contained in the insulator.

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Nagaokakyo, Japan

Hironobu Kubota