Metal magnetic particle, inductor, method for manufacturing metal magnetic particle, and method for manufacturing metal magnetic core

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United States of America Patent

PATENT NO 11965229
APP PUB NO 20210313100A1
SERIAL NO

17201871

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Abstract

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A metal magnetic particle provided with an oxide layer on a surface of an alloy particle containing Fe and Si. The oxide layer has a first oxide layer, a second oxide layer, a third oxide layer, and a fourth oxide layer. Also, in line analysis of element content by using a scanning transmission electron microscope-energy dispersive X-ray spectroscopy, the first oxide layer is a layer where Fe content takes a local maximum value, the second oxide layer is a layer where Fe content takes a local maximum value, the third oxide layer is a layer where Si content takes a local maximum value, and the fourth oxide layer is a layer where Fe content takes a local maximum value.

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Patent Owner(s)

Patent OwnerAddress
MURATA MANUFACTURING CO LTD10-1 HIGASHIKOTARI 1-CHOME NAGAOKAKYO-SHI KYOTO-FU 617-8555

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishida, Takuya Nagaokakyo, JP 154 1093
Ishida, Yuya Nagaokakyo, JP 32 114
Odahara, Mitsuru Nagaokakyo, JP 32 116
Uji, Katsutoshi Nagaokakyo, JP 9 3
Yamamoto, Makoto Nagaokakyo, JP 297 3169

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