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1.发明授权公开(公告)号：US08072365B2
公开(公告)日：2011-12-06
申请号：US12310525
申请日：2007-08-30
申请人： Shin-ichi Ohkoshi , Shiro Kuroki , Shunsuke Sakurai , Asuka Namai , Kimitaka Sato , Shinya Sasaki
发明人： Shin-ichi Ohkoshi , Shiro Kuroki , Shunsuke Sakurai , Asuka Namai , Kimitaka Sato , Shinya Sasaki
CPC分类号： H05K9/0075 , B82Y30/00 , C01G49/0018 , C01G49/0045 , C01P2002/72 , C01P2004/04 , C01P2004/64 , C01P2006/42 , C04B35/26 , C04B35/62807 , C04B35/62813 , C04B35/62823 , C04B35/62886 , C04B2235/3217 , C04B2235/3274 , C04B2235/3286 , C04B2235/5454 , H01F1/344
摘要： Disclosed is a magnetic crystal for electromagnetic wave absorbing materials, having a structure of ε-MxFe2-xO3 with 0
摘要翻译： 本发明公开了一种电磁波吸收材料的磁结晶，其结构为：具有0
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公开(公告)号：US20080057352A1
公开(公告)日：2008-03-06
申请号：US11892911
申请日：2007-08-28
CPC分类号： C01G49/06 , B82Y30/00 , C01P2002/72 , C01P2004/04 , C01P2004/62 , C01P2004/64 , C01P2004/84 , C01P2006/42 , G11B5/70642 , G11B5/714 , Y10T428/2982 , Y10T428/2991
摘要： A magnetic material is provided that has an iron oxide phase whose principal phase is a crystal of a structure which has the same space group as ε-Fe2O3 crystal and in which Al is substituted for a portion of the Fe sites of the ε-Fe2O3 crystal. The molar ratio of Al to Fe in the iron oxide phase, when expressed as Al:Fe=x:(2−x), satisfies 0≦x≦1. The value of x is preferably in the range of 0.3 to 0.7. The average particle diameter of the powder determined from a TEM image is preferably 5 to 200 nm, more preferably 10 to 100 nm. The magnetic material has very high practical value because it enables the extremely high coercive force Hc of the ε-Fe2O3 crystal to be regulated to a level enabling utilization in magnetic recording medium and various other applications. The magnetic powder can be produced by a method combining the reverse micelle method and the sol-gel method.
摘要翻译： 提供一种磁性材料，其具有氧化铁相，其主相是具有与ε-Fe 2 O 3结晶相同的空间基团的结构的晶体，并且在 该Al取代了ε-Fe 2 O 3结晶的一部分Fe位点。 当以Al:Fe = x：（2-x）表示时，氧化铁相中的Al与Fe的摩尔比满足0
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公开(公告)号：US07781082B2
公开(公告)日：2010-08-24
申请号：US11892911
申请日：2007-08-28
IPC分类号： G11B5/65
CPC分类号： C01G49/06 , B82Y30/00 , C01P2002/72 , C01P2004/04 , C01P2004/62 , C01P2004/64 , C01P2004/84 , C01P2006/42 , G11B5/70642 , G11B5/714 , Y10T428/2982 , Y10T428/2991
摘要： A magnetic material is provided that has an iron oxide phase whose principal phase is a crystal of a structure which has the same space group as ε-Fe2O3 crystal and in which Al is substituted for a portion of the Fe sites of the ε-Fe2O3 crystal. The molar ratio of Al to Fe in the iron oxide phase, when expressed as Al:Fe=x:(2−x), satisfies 0≦x≦1. The value of x is preferably in the range of 0.3 to 0.7. The average particle diameter of the powder determined from a TEM image is preferably 5 to 200 nm, more preferably 10 to 100 nm. The magnetic material has very high practical value because it enables the extremely high coercive force Hc of the ε-Fe2O3 crystal to be regulated to a level enabling utilization in magnetic recording medium and various other applications. The magnetic powder can be produced by a method combining the reverse micelle method and the sol-gel method.
摘要翻译： 提供一种具有氧化铁相的磁性材料，该氧化铁相的主相是具有与Fe-Fe 2 O 3晶体相同空间基团的结构的结晶，并且其中Al代替一部分Fe基部分的Fe- Fe2O3晶体。 当以Al:Fe = x：（2-x）表示时，氧化铁相中的Al与Fe的摩尔比满足0
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公开(公告)号：US08097180B2
公开(公告)日：2012-01-17
申请号：US12225166
申请日：2007-03-28
申请人： Shin-ichi Ohkoshi , Kazuhito Hashimoto , Shunsuke Sakurai , Shiro Kuroki , Kimitaka Sato , Shinya Sasaki
发明人： Shin-ichi Ohkoshi , Kazuhito Hashimoto , Shunsuke Sakurai , Shiro Kuroki , Kimitaka Sato , Shinya Sasaki
CPC分类号： G11B5/70642 , C01G49/0018 , C01P2002/72 , C01P2004/04 , C01P2006/42 , C04B35/26 , C04B35/62807 , C04B2235/3274 , C04B2235/3286 , C04B2235/76 , G11B5/712 , G11B5/714 , H01F1/11
摘要： Disclosed is a magnetic material comprising a crystal of ε-GaxFe2-xO3 (wherein 0
摘要翻译： 公开了一种磁性材料，其包含通过用Fe 3+离子取代Fe-Fe 2 O 3晶体的Ga 3+离子部分的一部分并且具有相应的X射线衍射峰而制备的具有-GaxFe 2-x O 3的晶体（其中0
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5.发明申请Magnetic crystal for radio wave absorbing material and radio wave absorbent 有权用于无线电波吸收材料和无线电波吸收材料的磁性晶体公开(公告)号：US20100238063A1
公开(公告)日：2010-09-23
申请号：US12310525
申请日：2007-08-30
申请人： Shin-ichi Ohkoshi , Shiro Kuroki , Shunsuke Sakurai , Asuka Namai , Kimitaka Sato , Shinya Sasaki
发明人： Shin-ichi Ohkoshi , Shiro Kuroki , Shunsuke Sakurai , Asuka Namai , Kimitaka Sato , Shinya Sasaki
CPC分类号： H05K9/0075 , B82Y30/00 , C01G49/0018 , C01G49/0045 , C01P2002/72 , C01P2004/04 , C01P2004/64 , C01P2006/42 , C04B35/26 , C04B35/62807 , C04B35/62813 , C04B35/62823 , C04B35/62886 , C04B2235/3217 , C04B2235/3274 , C04B2235/3286 , C04B2235/5454 , H01F1/344
摘要： Disclosed is a magnetic crystal for electromagnetic wave absorbing materials, having a structure of ε-MxFe2-xO3 with 0
摘要翻译： 本发明公开了一种电磁波吸收材料的磁结晶，其结构为：具有0
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公开(公告)号：US07708902B2
公开(公告)日：2010-05-04
申请号：US11521395
申请日：2006-09-15
CPC分类号： G11B5/70642 , B82Y25/00 , G11B5/714 , H01F1/0054 , H01F10/007 , Y10T428/11 , Y10T428/115 , Y10T428/32
摘要： A magnetic material composed of ε-InxFe2-xO3 (wherein 0
摘要翻译： 由其中In取代Fe-Fe 2 O 3晶体的Fe部分的一部分组成的磁性材料（其中0≤x≤1,0.30）构成。 该晶体表现出类似于Fe 2 O 3晶体结构的X射线衍射图，并且具有与Fe 2 O 3相同的空间组。 In含量赋予磁性材料低于Fe 2 O 3的磁相变温度和比Fe-Fe2O3高的自旋重新取向温度。 In含量还可以使磁性材料的复合介电常数的虚部的峰值温度高于Fe 2 O 3的虚部。
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公开(公告)号：US20070218319A1
公开(公告)日：2007-09-20
申请号：US11521395
申请日：2006-09-15
CPC分类号： G11B5/70642 , B82Y25/00 , G11B5/714 , H01F1/0054 , H01F10/007 , Y10T428/11 , Y10T428/115 , Y10T428/32
摘要： A magnetic material composed of ε-InxFe2-xO3 (wherein 0
摘要翻译： 由以下组成的磁性材料：其中In是由以下组成的其中In是由以下组成的ε-In×Fe 2 Fe 3 O 3（其中0
2 3。 In含量赋予磁性材料磁性相转变温度低于ε-Fe 2 O 3 3的磁相变温度，并且旋转重新取向温度高于ε-2 的ε-Fe 2 O 3 3。 In含量还可以使磁性材料的复合介电常数的虚部的峰值温度高于ε-Fe 2 O 3 3的复数介电常数的虚部。 -
8.发明授权公开(公告)号：US08444872B2
公开(公告)日：2013-05-21
申请号：US12451731
申请日：2008-05-30
CPC分类号： C01G53/006 , B82Y30/00 , C01G23/002 , C01G45/006 , C01G49/0018 , C01G49/009 , C01G51/006 , C01P2002/52 , C01P2004/04 , C01P2004/32 , C01P2004/51 , C01P2004/54 , C01P2004/62 , C01P2004/64 , C01P2004/80 , C01P2006/42 , C04B35/2658 , C04B35/2666 , C04B35/62807 , C04B35/6281 , C04B35/62823 , C04B2235/3217 , C04B2235/3232 , C04B2235/3262 , C04B2235/3274 , C04B2235/3275 , C04B2235/3279 , C04B2235/3284 , C04B2235/3286 , C04B2235/5454 , C04B2235/5481 , H01F1/344 , H01F1/37 , H01Q17/00
摘要： Disclosed is a magnetic material having high Hc and High Curie point, which is capable of controlling such magnetic characteristics without requiring rare or expensive raw materials. Specifically disclosed is a magnetic material composed of particles of a magnetic iron oxide which is represented by the following general formula: ε-AxByFe2−x−yO3 or ε-AxByCzFe2−x−y−zO3 (wherein A, B and C each represents a metal excluding Fe and different from each other, satisfying 0
摘要翻译： 公开了具有高Hc和高居里点的磁性材料，其能够控制这种磁特性，而不需要稀有或昂贵的原料。 具体公开的是由以下通式表示的磁性氧化铁颗粒构成的磁性材料：ε-AxByFe2-x-yO3或ε-AxByCzFe2-xy-zO3（其中A，B和C各自表示不包括 Fe和彼此不同，满足0
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9.发明申请公开(公告)号：US20100171066A1
公开(公告)日：2010-07-08
申请号：US12451731
申请日：2008-05-30
CPC分类号： C01G53/006 , B82Y30/00 , C01G23/002 , C01G45/006 , C01G49/0018 , C01G49/009 , C01G51/006 , C01P2002/52 , C01P2004/04 , C01P2004/32 , C01P2004/51 , C01P2004/54 , C01P2004/62 , C01P2004/64 , C01P2004/80 , C01P2006/42 , C04B35/2658 , C04B35/2666 , C04B35/62807 , C04B35/6281 , C04B35/62823 , C04B2235/3217 , C04B2235/3232 , C04B2235/3262 , C04B2235/3274 , C04B2235/3275 , C04B2235/3279 , C04B2235/3284 , C04B2235/3286 , C04B2235/5454 , C04B2235/5481 , H01F1/344 , H01F1/37 , H01Q17/00
摘要： Disclosed is a magnetic material having high Hc and High Curie point, which is capable of controlling such magnetic characteristics without requiring rare or expensive raw materials. Specifically disclosed is a magnetic material composed of particles of a magnetic iron oxide which is represented by the following general formula: ε-AxByFe2−x−yO3 or ε-AxByCzFe2−x−y−zO3 (wherein A, B and C each represents a metal excluding Fe and different from each other, satisfying 0
摘要翻译： 公开了具有高Hc和高居里点的磁性材料，其能够控制这种磁特性，而不需要稀有或昂贵的原料。 具体公开的是由以下通式表示的磁性氧化铁颗粒构成的磁性材料：＆lt; a-aBeFe2-x-yO3或＆egr-AxByCzFe2-x-y-zO3（其中A，B和C各自 表示除Fe之外并且彼此不同的金属，满足0
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10.发明授权Method for improving coercive force of epsilon-type iron oxide, and epsilon-type iron oxide 有权改进ε型氧化铁矫顽力的方法和ε型氧化铁公开(公告)号：US09458026B2
公开(公告)日：2016-10-04
申请号：US13499172
申请日：2010-09-30
申请人： Shin-ichi Ohkoshi , Shunsuke Sakurai , Asuka Namai , Sayaka Umeda , Hiroshi Hachiya , Kazuyuki Matsumoto , Takashi Gotoh
发明人： Shin-ichi Ohkoshi , Shunsuke Sakurai , Asuka Namai , Sayaka Umeda , Hiroshi Hachiya , Kazuyuki Matsumoto , Takashi Gotoh
CPC分类号： H01F1/047 , C01G49/0018 , C01G49/06 , C01P2002/50 , C01P2002/52 , C01P2006/42 , C04B35/26 , C04B35/62826 , C04B2235/3217 , C04B2235/3286 , C04B2235/3289 , C04B2235/3418 , C04B2235/761 , H01F1/10
摘要： To provide a method for improving a coercive force of epsilon-type iron oxide particles, and an epsilon-type iron oxide. Specifically, to provide a method for improving the coercive force of an epsilon-type iron oxide comprising: substituting Fe-site of the epsilon-type iron oxide with other element, while not substituting Fe of D-site in the epsilon-type iron oxide with other element, and the epsilon type iron oxide.
摘要翻译： 提供一种改善ε型氧化铁颗粒和ε型氧化铁的矫顽力的方法。 具体地，提供一种改进ε型氧化铁的矫顽力的方法，包括：用其它元素代替ε型氧化铁的Fe部位，而不是在ε型氧化铁中代替D位的Fe 与其他元素，和epsilon型氧化铁。
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