Magnetic material for antennas, antenna, and wireless communication device

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United States of America Patent

PATENT NO 9424968
APP PUB NO 20120229354A1
SERIAL NO

13351722

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Abstract

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A magnetic material for antennas including: an M-type hexagonal ferrite represented by the following general formula (1) as a main phase, MA.Fe12-x.MBx.O19 (wherein MA is at least one kind selected from the group consisting of Sr and Ba, MB is MC or MD, MC is at least one kind selected from the group consisting of Al, Cr, Sc and In, MD is an equivalent mixture of at least one kind selected from the group consisting of Ti, Sn and Zr and at least one kind selected from the group consisting of Ni, Zn, Mn, Mg, Cu and Co, X is a number from 1 to 5), and an average crystal particle diameter is equal to or greater than 5 μm.

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Patent Owner(s)

Patent OwnerAddress
TDK CORPORATIONTOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harada, Akihiro Tokyo, JP 72 173
Ishikura, Tomokazu Tokyo, JP 11 35
Kawasaki, Katsumi Tokyo, JP 29 35
Kuroda, Tomofumi Tokyo, JP 24 73
Muramoto, Michihiro Tokyo, JP 1 11

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