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11. 发明申请

US20070099033A1 Ferrite magnetic material and ferrite sintered magnet 有权
标题翻译：铁氧体磁性材料和铁氧体烧结磁体
公开(公告)号：US20070099033A1
公开(公告)日：2007-05-03
申请号：US10581212
申请日：2004-12-08
申请人： Yoshihiko Minachi , Junichi Nagaoka , Shunsuke Kurasawa , Noboru Ito , Taku Murase , Takeshi Masuda , Kenya Takagawa , Hidenobu Umeda
发明人： Yoshihiko Minachi , Junichi Nagaoka , Shunsuke Kurasawa , Noboru Ito , Taku Murase , Takeshi Masuda , Kenya Takagawa , Hidenobu Umeda
IPC分类号： G11B5/65 , C04B35/40 , H01F1/00 , G11B5/706
CPC分类号： C04B35/632 , C01G49/0036 , C01G49/0054 , C01G49/009 , C01P2006/42 , C04B35/2633 , C04B35/2683 , C04B35/6261 , C04B35/62625 , C04B35/6268 , C04B35/63 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3229 , C04B2235/3232 , C04B2235/3251 , C04B2235/3256 , C04B2235/3258 , C04B2235/3272 , C04B2235/3274 , C04B2235/3281 , C04B2235/3284 , C04B2235/3286 , C04B2235/3418 , C04B2235/422 , C04B2235/449 , C04B2235/5409 , C04B2235/5445 , C04B2235/605 , C04B2235/652 , C04B2235/658 , C04B2235/763 , C04B2235/767 , C04B2235/785 , C04B2235/80 , C04B2235/83 , H01F1/11 , Y10T428/32
摘要： A ferrite magnetic material comprising a main phase of W-type is provided which has magnetic properties improved through the optimization of additives. The ferrite magnetic material comprises a main constituent having a compound represented by composition formula AFe2+aFe3+bO27 (wherein A comprises at least one element selected from Sr, Ba and Pb; 1.5≦a≦2.1; and 12.9≦b≦16.3), a first additive containing a Ca constituent (0.3 to 3.0 wt % in terms of CaCO3) and/or a Si constituent (0.2 to 1.4 wt % in terms of SiO2), and a second additive containing at least one of an Al constituent (0.01 to 1.5 wt % in terms of Al2O3), a W constituent (0.01 to 0.6 wt % in terms of WO3), a Ce constituent (0.001 to 0.6 wt % in terms of CeO2), a Mo constituent (0.001 to 0.16 wt % in terms of MoO3), and a Ga constituent (0.001 to 15 wt % in terms of Ga2O3).
摘要翻译：提供了包括W型主相的铁氧体磁性材料，其通过优化添加剂而具有改进的磁性能。铁氧体磁性材料包括具有由组成式AFe 2 +和/或Fe 3+组成的化合物的主要成分（其中A包含选自Sr，Ba和Pb中的至少一种元素; 1.5 <= a <= 2.1;和12.9 <= b <= 16.3），含有Ca 成分（以CaCO 3 3计为0.3〜3.0重量％）和/或Si成分（以SiO 2 2计为0.2〜1.4重量％），第二添加剂含有Al成分中的至少一种（按Al 2 O 3 3计算为0.01〜1.5重量％），W成分（按WO排列为0.01〜0.6重量％ 3成分），Ce成分（按CeO 2计算为0.001〜0.6重量％），Mo成分（按MoO 3计为0.001〜0.16重量％）和Ga成分（按Ga 2 O 3 3换算为0.001〜15重量％）。

12. 发明申请

US20120161910A1 FERRITE MAGNETIC MATERIAL 有权
标题翻译：铁素体磁性材料
公开(公告)号：US20120161910A1
公开(公告)日：2012-06-28
申请号：US13382211
申请日：2010-07-05
申请人： Junichi Nagaoka , Takahiro Mori , Hiroyuki Morita , Yoshihiko Minachi
发明人： Junichi Nagaoka , Takahiro Mori , Hiroyuki Morita , Yoshihiko Minachi
IPC分类号： H01F7/02 , H01F1/01
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
摘要： An object of the present invention is to provide a ferrite magnetic material capable of providing a permanent magnet in which high Br and HcJ are kept, and which has a high Hk/HcJ. A ferrite magnetic material in accordance with a preferred embodiment has a ferrite phase having a hexagonal structure and has a main composition represented by Ca1-w-x-yRwSrxBayFezMmO19(R is at least one element of rare earth elements (including Y) essentially including La, and Bi, and M is at least one element of Co, Mn, Mg, Ni, Cu, and Zn essentially including Co), where 0.25
摘要翻译：本发明的目的是提供一种能够提供高Br和HcJ并且具有高Hk / HcJ的永磁体的铁氧体磁性材料。根据优选实施方案的铁氧体磁性材料具有具有六方结构的铁素体相，并且具有由Ca1-wx-yRwSrxBayFezMmO19表示的主要组成（R是至少一种基本上包括La的稀土元素（包括Y）的元素），以及 Bi和M是基本上包括Co）的至少一种元素Co，Mn，Mg，Ni，Cu和Zn，其中0.25

13. 发明授权

US08033314B2 Method for producing sintered magnet 有权
标题翻译：烧结磁铁的制造方法
公开(公告)号：US08033314B2
公开(公告)日：2011-10-11
申请号：US12382985
申请日：2009-03-27
申请人： Masashi Gotoh , Yoshihiko Minachi , Yoshihiro Enda , Shunichi Kudo , Tomohiko Aida
发明人： Masashi Gotoh , Yoshihiko Minachi , Yoshihiro Enda , Shunichi Kudo , Tomohiko Aida
IPC分类号： B22D27/09 , C04B35/00
CPC分类号： H01F41/0266 , C04B35/2633 , C04B35/2641 , C04B35/6261 , C04B35/6262 , C04B35/62685 , C04B35/632 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3275 , C04B2235/3277 , C04B2235/3284 , C04B2235/3296 , C04B2235/3298 , C04B2235/3418 , C04B2235/5409 , C04B2235/5445 , C04B2235/6022 , C04B2235/605 , C04B2235/767 , C04B2235/77 , C04B2235/788 , H01F1/11
摘要： A method for producing a sintered magnet comprising steps of; wet-pulverizing a magnetic powder under the presence of a surface active agent, drying said wet-pulverized magnetic powder 20 for obtaining magnetic powder to which said surface active agent is adhered, heating and kneading said dried magnetic powder 20 with binder resin to form pellet, melting said pellet and injecting said pellet in a mold to which magnetic field is applied, to form a preform body, and firing said preform body.
摘要翻译：一种制造烧结磁体的方法，包括以下步骤：在表面活性剂的存在下对磁性粉末进行湿式粉碎，干燥所述湿式粉碎磁性粉末20，以获得附着有所述表面活性剂的磁性粉末，加热和捏合所述干燥的磁粉20与粘合剂树脂形成颗粒熔化所述颗粒并将所述颗粒注射到施加有磁场的模具中，以形成预成型体本体，并且对所述预成型体进行烧制。

14. 发明授权

US06258290B1 Magnet powder, sintered magnet, process for producing them, bonded magnet, motor and magnetic recording medium 有权
标题翻译：磁铁粉末，烧结磁体，制造方法，粘结磁体，马达和磁记录介质
公开(公告)号：US06258290B1
公开(公告)日：2001-07-10
申请号：US09593008
申请日：2000-06-13
申请人： Hitoshi Taguchi , Kiyoyuki Masuzawa , Yoshihiko Minachi , Kazumasa Iida , Mitsuaki Sasaki , Fumihiko Hirata
发明人： Hitoshi Taguchi , Kiyoyuki Masuzawa , Yoshihiko Minachi , Kazumasa Iida , Mitsuaki Sasaki , Fumihiko Hirata
IPC分类号： C04B3540
CPC分类号： C04B35/2641 , G11B5/70678 , H01F1/11 , H01F1/112 , H01F1/113
摘要： The magnetic powder and the sintered magnet of the invention contains a primary phase of a hexagonal ferrite containing A, Co or R wherein A represents Sr, Ba or Ca, and R represents at least one element which may be rare earth elements including Y, and Bi, and have at least two different Curie temperatures. wherein the two different Curie temperatures are present within a range of from 400 to 480° C., and an absolute value of a difference therebetween is 5° C. or more. As both the saturation magnetization and the magnetic anisotropy of the M type ferrite therein are increased, the magnetic powder and the wintered magnet have a high residual magnetic flux density and a high coercive force, which conventional M type ferrite magnets could not have, while having excellent temperature characteristics of coercive force.
摘要翻译：本发明的磁性粉末和烧结磁体含有含有A，Co或R的六方晶系铁氧体的主相，其中A表示Sr，Ba或Ca，R表示至少一种可包括Y的稀土元素， Bi，并且具有至少两个不同的居里温度。其中两个不同的居里温度存在于400至480℃的范围内，并且它们之间的差值的绝对值为5℃或更高。随着其中M型铁氧体的饱和磁化强度和磁各向异性的增加，磁粉和烧结磁体都具有高常数M型铁氧体磁体不能具有的高残余磁通密度和高矫顽力，同时具有优良的矫顽力温度特性。

15. 发明授权

US6086781A Magnet powder, sintered magnet, process for producing them, bonded magnet, motor and magnetic recording medium 有权
标题翻译：磁铁粉末，烧结磁体，制造方法，粘结磁体，马达和磁记录介质
公开(公告)号：US6086781A
公开(公告)日：2000-07-11
申请号：US314013
申请日：1999-05-19
申请人： Hitoshi Taguchi , Kiyoyuki Masuzawa , Yoshihiko Minachi , Kazumasa Iida , Mitsuaki Sasaki , Fumihiko Hirata
发明人： Hitoshi Taguchi , Kiyoyuki Masuzawa , Yoshihiko Minachi , Kazumasa Iida , Mitsuaki Sasaki , Fumihiko Hirata
IPC分类号： C04B35/26 , G11B5/706 , H01F1/11 , H01F1/113 , C04B35/40
CPC分类号： C04B35/2641 , G11B5/70678 , H01F1/11 , H01F1/112 , H01F1/113
摘要： The magnetic powder and the sintered magnet of the invention contains a primary phase of a hexagonal ferrite containing A, Co or R wherein A represents Sr, Ba or Ca, and R represents at least one element which may be rare earth elements including Y, and Bi, and have at least two different Curie temperatures, wherein the two different Curie temperatures are present within a range of from 400 to 480.degree. C., and an absolute value of a difference therebetween is 5.degree. C. or more. As both the saturation magnetization and the magnetic anisotropy of the M type ferrite therein are increased, the magnetic powder and the wintered magnet have a high residual magnetic flux density and a high coercive force, which conventional M type ferrite magnets could not have, while having excellent temperature characteristics of coercive force.
摘要翻译：本发明的磁性粉末和烧结磁体含有含有A，Co或R的六方晶系铁氧体的主相，其中A表示Sr，Ba或Ca，R表示至少一种可包括Y的稀土元素， Bi，并且具有至少两种不同的居里温度，其中两种不同的居里温度存在于400至480℃的范围内，其差值的绝对值为5℃或更高。随着其中M型铁氧体的饱和磁化强度和磁各向异性的增加，磁粉和烧结磁体都具有高常数M型铁氧体磁体不能具有的高残余磁通密度和高矫顽力，同时具有优良的矫顽力温度特性。

16. 发明授权

US08835001B2 Ferrite sintered magnet, motor, and method for producing the ferrite sintered magnet 有权
标题翻译：铁氧体烧结磁体，电动机以及铁氧体烧结磁铁的制造方法
公开(公告)号：US08835001B2
公开(公告)日：2014-09-16
申请号：US13431450
申请日：2012-03-27
申请人： Hideyuki Umezawa , Yoshihiko Minachi , Osanori Mizonoue
发明人： Hideyuki Umezawa , Yoshihiko Minachi , Osanori Mizonoue
IPC分类号： B32B5/16
CPC分类号： H02K1/02 , C04B35/2633 , C04B35/2641 , C04B35/6262 , C04B2235/3208 , C04B2235/3213 , C04B2235/3227 , C04B2235/3277 , C04B2235/3418 , C04B2235/6022 , C04B2235/963 , H01F1/113 , H01F7/02 , H02K15/03
摘要： A ferrite sintered magnet has a surface roughness Rz of 3.5 μm or less. A method for producing a ferrite sintered magnet includes: mixing magnetic powders with at least a binder resin to obtain a magnetic powder mixture; injection molding the magnetic powder mixture inside of a mold having a surface roughness of a surface in contact with the magnetic powder mixture of 2.0 μm or less with a magnetic field applied to the mold, to obtain a molded body; and sintering the molded body.
摘要翻译：铁氧体烧结磁体的表面粗糙度Rz为3.5μm以下。一种铁氧体烧结磁体的制造方法，其特征在于，将磁粉与至少一种粘结剂树脂混合，得到磁性粉末混合物; 将具有表面粗糙度的表面粗糙度为2.0μm以下的磁性粉末混合物的表面粗糙度的磁性粉末混合物注射到施加到模具上的磁场中，得到成型体; 并烧结成型体。

17. 发明申请

US20130027160A1 SINTERED MAGNET AND METHOD FOR PRODUCING THE SINTERED MAGNET 有权
标题翻译：烧结磁体和生产烧结磁体的方法
公开(公告)号：US20130027160A1
公开(公告)日：2013-01-31
申请号：US13637559
申请日：2011-03-31
申请人： Hiroyuki Morita , Yoshihiko Minachi , Takahiro Mori , Tatsuya Kato , Nobuhiro Suto , Naoto Oji
发明人： Hiroyuki Morita , Yoshihiko Minachi , Takahiro Mori , Tatsuya Kato , Nobuhiro Suto , Naoto Oji
IPC分类号： H01F7/02
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 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. The sintered magnet has a thickness of 3.5 mm or less in the position of center of gravity thereof. The sintered magnet has a surface roughness Rz of 0.1 or more and 2.5 μm or less. The surface roughness Rz is a 10 point average roughness.
摘要翻译：本发明旨在确保薄壁烧结磁体的强度。烧结磁体是通过烧结磁性材料制成的铁氧体烧结磁体。将磁粉与粘合剂树脂混合得到的磁性粉末混合物注射成型为具有施加磁场的模具，制成成形体，然后烧结而制成烧结磁体。该烧结磁体的重心位置的厚度为3.5mm以下。烧结磁体的表面粗糙度Rz为0.1以上且2.5μm以下。表面粗糙度Rz为10点平均粗糙度。

18. 发明申请

US20120161062A1 FERRITE MAGNETIC MATERIAL 有权
标题翻译：铁素体磁性材料
公开(公告)号：US20120161062A1
公开(公告)日：2012-06-28
申请号：US13382220
申请日：2010-07-02
申请人： Junichi Nagaoka , Takahiro Mori , Hiroyuki Morita , Yoshihiko Minachi
发明人： Junichi Nagaoka , Takahiro Mori , Hiroyuki Morita , Yoshihiko Minachi
IPC分类号： H01F1/01
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 P2O5 is 0.001% by mass or more.
摘要翻译：本发明的目的是提供一种能够提供保持高Br和HcJ的永磁体以及具有高Hk / HcJ的铁氧体磁性材料。根据优选实施方案的铁氧体磁性材料是由硬质铁氧体形成的铁氧体磁性材料，其中以P 2 O 5计的P含量为0.001质量％以上。

19. 发明授权

US06248253B1 Hexagonal ferrite magnets 有权
标题翻译：六角铁氧体磁铁
公开(公告)号：US06248253B1
公开(公告)日：2001-06-19
申请号：US09272338
申请日：1999-03-19
申请人： Hitoshi Taguchi , Kiyoyuki Masuzawa , Yoshihiko Minachi , Kazumasa Iida
发明人： Hitoshi Taguchi , Kiyoyuki Masuzawa , Yoshihiko Minachi , Kazumasa Iida
IPC分类号： C04B3540
CPC分类号： C04B35/2633 , C04B35/2641 , H01F1/10
摘要： An object of the invention is to simultaneously increase the saturation magnetization and magnetic anisotropy of M type ferrite, thereby realizing a hexagonal ferrite magnet having a high remanence and high coercivity which could never be achieved in prior art M type hexagonal ferrite magnets. The object is attained by a hexagonal ferrite magnet comprising A, R, and Fe, wherein A represents at least one element selected from among Sr, Ba, and Ca, and R represents an element capable of assuming a valence of +3 or +4 and having an ionic radius of at least 1.00 angstrom, and n/N is up to 0.35 provided that N is the total number of crystal grains and n is the number of crystal grains having stacking faults.
摘要翻译：本发明的目的是同时提高M型铁氧体的饱和磁化强度和磁各向异性，从而实现了在现有技术的M型六角铁氧体磁体中永远不可能实现的具有高剩磁和高矫顽力的六方晶系铁氧体磁体。该目的是通过包含A，R和Fe的六方晶系铁氧体磁体来实现的，其中A表示选自Sr，Ba和Ca中的至少一种元素，R表示能够呈现+3或+4价的元素并具有至少1.00埃的离子半径，并且n / N至多为0.35，条件是N是晶粒的总数，n是具有堆垛层错的晶粒数。

20. 发明授权

US08834738B2 Ferrite magnetic material 有权
标题翻译：铁氧体磁性材料
公开(公告)号：US08834738B2
公开(公告)日：2014-09-16
申请号：US13382220
申请日：2010-07-02
申请人： Junichi Nagaoka , Takahiro Mori , Hiroyuki Morita , Yoshihiko Minachi
发明人： Junichi Nagaoka , Takahiro Mori , Hiroyuki Morita , Yoshihiko Minachi
IPC分类号： H01F1/11 , C01G49/00 , C04B35/26 , C01G51/00 , C04B35/632 , C04B35/626
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 P2O5 is 0.001% by mass or more.
摘要翻译：本发明的目的是提供一种能够提供保持高Br和HcJ的永磁体以及具有高Hk / HcJ的铁氧体磁性材料。根据优选实施方案的铁氧体磁性材料是由硬质铁氧体形成的铁氧体磁性材料，其中以P 2 O 5计的P含量为0.001质量％以上。

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