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1.发明授权FERRITE MAGNETIC MATERIAL, FERRITE MAGNET, FERRITE SINTERED MAGNET 有权FERRITMAGNETMATERIAL，FERRITMAGNET UND FERRITSINTERMAGNET
公开(公告)号：EP2511249B1
公开(公告)日：2017-05-03
申请号：EP11756314
申请日：2011-03-15
申请人： TDK CORP
发明人： YANAGIDA SHIGEKI , MORI TAKAHIRO , MORITA HIROYUKI , SUTO NOBUHIRO , KATOH TATSUYA , MINACHI YOSHIHIKO
CPC分类号： H01F1/01 , C04B35/2633 , C04B35/2641 , C04B35/6261 , C04B35/62695 , C04B35/632 , C04B35/63408 , C04B35/63424 , C04B35/638 , C04B2235/32 , C04B2235/3201 , C04B2235/3203 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3217 , C04B2235/3227 , C04B2235/3232 , C04B2235/3239 , C04B2235/3241 , C04B2235/3244 , C04B2235/3251 , C04B2235/3256 , C04B2235/3258 , C04B2235/3262 , C04B2235/3277 , C04B2235/3279 , C04B2235/3281 , C04B2235/3284 , C04B2235/3286 , C04B2235/3287 , C04B2235/3293 , C04B2235/3294 , C04B2235/3409 , C04B2235/3418 , C04B2235/3427 , C04B2235/5409 , C04B2235/5436 , C04B2235/5445 , C04B2235/6022 , C04B2235/605 , C04B2235/6562 , C04B2235/6588 , C04B2235/767 , C04B2235/786 , C04B2235/787 , C04B2235/788 , H01F1/10 , H01F1/11
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公开(公告)号：EP2555209A4
公开(公告)日：2014-03-12
申请号：EP11765800
申请日：2011-03-31
申请人： TDK CORP
发明人： MORITA HIROYUKI , MINACHI YOSHIHIKO , MORI TAKAHIRO , KATO TATSUYA , SUTO NOBUHIRO , OJI NAOTO
CPC分类号： C22C33/0278 , B22F3/225 , B22F2998/10 , H01F1/11 , H01F7/021 , H01F41/0266 , B22F9/04 , B22F3/1021
摘要： The present invention aims to ensure strength of a thin-walled sintered magnet. A sintered magnet 1 is a ferrite sintered magnet made by sintering a magnetic material. A magnetic powder mixture obtained by mixing magnetic powder with a binder resin is injection-molded into a mold with a magnetic field applied thereto to produce a molded body, which is then sintered to produce the sintered magnet 1. The sintered magnet 1 has a thickness of 3.5 mm or less in the position of center of gravity thereof. The sintered magnet 1 has a surface roughness Rz of 0.1 µm or more and 2.5 µm or less. The surface roughness Rz is a 10 point average roughness.
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公开(公告)号：EP2511249A4
公开(公告)日：2013-10-02
申请号：EP11756314
申请日：2011-03-15
申请人： TDK CORP
发明人： YANAGIDA SHIGEKI , MORI TAKAHIRO , MORITA HIROYUKI , SUTO NOBUHIRO , KATOH TATSUYA , MINACHI YOSHIHIKO
CPC分类号： H01F1/01 , C04B35/2633 , C04B35/2641 , C04B35/6261 , C04B35/62695 , C04B35/632 , C04B35/63408 , C04B35/63424 , C04B35/638 , C04B2235/32 , C04B2235/3201 , C04B2235/3203 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3217 , C04B2235/3227 , C04B2235/3232 , C04B2235/3239 , C04B2235/3241 , C04B2235/3244 , C04B2235/3251 , C04B2235/3256 , C04B2235/3258 , C04B2235/3262 , C04B2235/3277 , C04B2235/3279 , C04B2235/3281 , C04B2235/3284 , C04B2235/3286 , C04B2235/3287 , C04B2235/3293 , C04B2235/3294 , C04B2235/3409 , C04B2235/3418 , C04B2235/3427 , C04B2235/5409 , C04B2235/5436 , C04B2235/5445 , C04B2235/6022 , C04B2235/605 , C04B2235/6562 , C04B2235/6588 , C04B2235/767 , C04B2235/786 , C04B2235/787 , C04B2235/788 , H01F1/10 , H01F1/11
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公开(公告)号：EP2453449A4
公开(公告)日：2013-04-03
申请号：EP10797084
申请日：2010-07-02
申请人： TDK CORP
IPC分类号： H01F1/11 , C01G49/00 , C01G51/00 , C04B35/26 , C04B35/626 , C04B35/632
CPC分类号： H01F1/10 , C01G49/0054 , C01G51/006 , C01P2002/30 , C01P2004/61 , C01P2004/62 , C01P2006/12 , C04B35/2633 , C04B35/2641 , C04B35/6261 , C04B35/6263 , C04B35/632 , C04B2235/32 , C04B2235/3203 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3227 , C04B2235/3232 , C04B2235/3239 , C04B2235/3241 , C04B2235/3244 , C04B2235/3251 , C04B2235/3256 , C04B2235/3258 , C04B2235/3262 , C04B2235/3277 , C04B2235/3279 , C04B2235/3281 , C04B2235/3284 , C04B2235/3286 , C04B2235/3287 , C04B2235/3293 , C04B2235/3294 , C04B2235/3409 , C04B2235/3418 , C04B2235/447 , C04B2235/448 , C04B2235/5409 , C04B2235/5436 , C04B2235/5445 , C04B2235/549 , C04B2235/605 , C04B2235/6562 , C04B2235/661 , C04B2235/72 , C04B2235/726 , C04B2235/727 , C04B2235/767 , C04B2235/785 , C04B2235/786 , C04B2235/85 , C04B2235/94 , C04B2235/95 , H01F1/11
摘要： An object of the present invention is to provide a ferrite magnetic material which can provide a permanent magnet retaining high Br and HcJ as well as having high Hk/HcJ. The ferrite magnetic material according to a preferred embodiment is a ferrite magnetic material formed of hard ferrite, wherein a P content in terms of P 2 O 5 is 0.001% by mass or more.
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公开(公告)号：EP2452928A4
公开(公告)日：2013-01-30
申请号：EP10797102
申请日：2010-07-05
申请人： TDK CORP
CPC分类号： C04B35/2633 , C01G49/0018 , C01G49/0036 , C01G49/009 , C01P2002/52 , C01P2006/42 , C04B35/2641 , C04B35/6262 , C04B35/632 , C04B2235/32 , C04B2235/3203 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3232 , C04B2235/3239 , C04B2235/3241 , C04B2235/3244 , C04B2235/3251 , C04B2235/3256 , C04B2235/3258 , C04B2235/3262 , C04B2235/3275 , C04B2235/3277 , C04B2235/3279 , C04B2235/3281 , C04B2235/3284 , C04B2235/3286 , C04B2235/3287 , C04B2235/3293 , C04B2235/3294 , C04B2235/3298 , C04B2235/3409 , C04B2235/3418 , C04B2235/5409 , C04B2235/5436 , C04B2235/5445 , C04B2235/549 , C04B2235/605 , C04B2235/72 , C04B2235/767 , C04B2235/94 , C04B2235/95 , C04B2235/9615 , H01F1/10 , H01F1/11
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