发明授权
US09424968B2 Magnetic material for antennas, antenna, and wireless communication device
有权
用于天线，天线和无线通信设备的磁性材料
- 专利标题： Magnetic material for antennas, antenna, and wireless communication device
- 专利标题（中）： 用于天线，天线和无线通信设备的磁性材料
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申请号： US13351722申请日： 2012-01-17
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公开(公告)号： US09424968B2公开(公告)日： 2016-08-23
- 发明人: Tomokazu Ishikura , Michihiro Muramoto , Akihiro Harada , Katsumi Kawasaki , Tomofumi Kuroda
- 申请人： Tomokazu Ishikura , Michihiro Muramoto , Akihiro Harada , Katsumi Kawasaki , Tomofumi Kuroda
- 申请人地址： JP Tokyo
- 专利权人： TDK CORPORATION
- 当前专利权人： TDK CORPORATION
- 当前专利权人地址： JP Tokyo
- 代理机构： Oliff PLC
- 优先权： JP2011-051829 20110309
- 主分类号： H01Q13/00
- IPC分类号： H01Q13/00 ; C04B35/00 ; B05D5/12 ; H01F1/10 ; H01Q1/24 ; H01Q1/36 ; H01Q5/00 ; H01Q9/42 ; C04B35/26 ; C04B35/626 ; C04B38/00 ; C04B111/00
摘要：
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.