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公开(公告)号：US07022752B2
公开(公告)日：2006-04-04
申请号：US09940866
申请日：2001-08-29
申请人： Kazuyuki Hayashi , Mineko Ohsugi , Keisuke Iwasaki , Hiroko Morii
发明人： Kazuyuki Hayashi , Mineko Ohsugi , Keisuke Iwasaki , Hiroko Morii
CPC分类号： B82Y30/00 , C01P2004/01 , C01P2004/03 , C01P2004/10 , C01P2004/20 , C01P2004/30 , C01P2004/32 , C01P2004/50 , C01P2004/51 , C01P2004/61 , C01P2004/62 , C01P2004/64 , C01P2004/82 , C01P2004/84 , C01P2006/12 , C01P2006/60 , C01P2006/62 , C01P2006/63 , C01P2006/64 , C01P2006/65 , C01P2006/66 , C01P2006/80 , C09C1/027 , C09C1/309 , C09C1/3692 , C09C3/006 , C09C3/12 , C09D11/32
摘要： Composite particles having an average particle diameter of 0.001 to 10.0 μm, comprise: white inorganic particles as core particles; a gluing agent coating layer formed on surface of the white inorganic particle; and an organic pigment coat formed onto said gluing agent coating layer in an amount of from 1 to 500 parts by weight based on 100 parts by weight of the white inorganic particles. The composite particles are substantially free from desorption of an organic pigment from the surface thereof and contain no harmful element.
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2.发明申请FERROMAGNETIC METAL PARTICLES AND PROCESS FOR PRODUCING THE SAME, AND MAGNETIC RECORDING MEDIUM 审中-公开氟化金属颗粒及其制造方法和磁记录介质公开(公告)号：US20090220823A1
公开(公告)日：2009-09-03
申请号：US12394473
申请日：2009-02-27
申请人： Hiroko MORII , Seiji Ishitani , Keisuke Iwasaki , Hirofumi Nishikawa , Mineko Ohsugi , Toshiharu Harada , Takahiro Matsuo , Yosuke Yamamoto , Kazuyuki Hayashi
发明人： Hiroko MORII , Seiji Ishitani , Keisuke Iwasaki , Hirofumi Nishikawa , Mineko Ohsugi , Toshiharu Harada , Takahiro Matsuo , Yosuke Yamamoto , Kazuyuki Hayashi
CPC分类号： G11B5/706 , B22F1/0059 , B22F7/08 , B22F2998/10 , C22C33/0257 , C22C2202/02 , H01F1/113 , H01F41/0266 , Y10T428/2982 , B22F1/02 , B22F1/0062 , B22F3/22 , B22F3/18 , B22F3/24 , B22F9/026 , B22F1/0085 , B22F9/22
摘要： The present invention relates to ferromagnetic metal particles having a bulk density (ρa) of not more than 0.25 g/cm3, a process for producing the above ferromagnetic metal particles and a magnetic recording medium comprising a non-magnetic substrate; a non-magnetic undercoat layer formed on the non-magnetic substrate which comprises non-magnetic particles and a binder resin; and a magnetic recording layer formed on the non-magnetic undercoat layer which comprises magnetic particles and a binder resin, wherein the above ferromagnetic metal particles were used as the magnetic particles.
摘要翻译： 本发明涉及堆积密度（rhoa）不大于0.25g / cm3的强磁性金属颗粒，制备上述铁磁性金属颗粒的方法和包含非磁性基材的磁记录介质; 形成在非磁性基板上的非磁性底涂层，其包含非磁性颗粒和粘合剂树脂; 以及形成在包含磁性颗粒和粘合剂树脂的非磁性底涂层上的磁记录层，其中使用上述铁磁性金属颗粒作为磁性颗粒。
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3.发明申请PROCESS FOR PRODUCING MAGNETIC METAL PARTICLES FOR MAGNETIC RECORDING, AND MAGNETIC RECORDING MEDIUM 审中-公开用于制造用于磁记录的磁性金属颗粒和磁记录介质的方法公开(公告)号：US20090202867A1
公开(公告)日：2009-08-13
申请号：US12364658
申请日：2009-02-03
CPC分类号： G11B5/712 , B22F9/22 , B22F2998/10 , B22F2999/00 , C22C33/0235 , C22C2202/02 , G11B5/70642 , H01F1/11 , H01F1/112 , H01F1/113 , C01B13/00 , B22F1/0088 , B22F1/0085 , B22F2201/013
摘要： The present invention relates to a process for producing magnetic metal particles for magnetic recording, comprising: heat-treating goethite particles having an aluminum content of 4 to 50 atom % in terms of Al based on whole Fe to obtain hematite particles; and heat-reducing the hematite particles at a temperature of 200 to 600° C., the goethite particles being obtained by adding a peroxodisulfate to a reaction solution comprising: a ferrous salt aqueous solution and a mixed alkali aqueous solution comprising: an alkali hydrogen carbonate aqueous solution or alkali carbonate aqueous solution and an alkali hydroxide aqueous solution before initiation of an oxidation reaction of the reaction solution, and then conducting the oxidation reaction.
摘要翻译： 本发明涉及一种磁记录用磁性金属粒子的制造方法，其特征在于，以全Fe为基准，以Al为基准热处理铝含量为4〜50原子％的针铁矿粒子，得到赤铁矿粒子; 并在200〜600℃的温度下还原赤铁矿颗粒，通过向反应溶液中加入过二硫酸盐而得到的针铁矿颗粒，所述反应溶液包含：亚铁盐水溶液和混合碱水溶液，所述混合碱水溶液包含：碱金属氢氧化物 水溶液或碱金属碳酸盐水溶液和碱性氢氧化物水溶液，然后进行氧化反应。
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4.发明授权Composite particles, and tread rubber composition, paint and resin composition using the same 失效复合颗粒和胎面橡胶组合物，油漆和树脂组合物使用相同公开(公告)号：US06800684B2
公开(公告)日：2004-10-05
申请号：US10142946
申请日：2002-05-13
IPC分类号： C08K334
CPC分类号： C08K9/02 , C01P2004/62 , C01P2006/12 , C01P2006/40 , C08K3/22 , C08K3/36 , C08K9/06 , C09C1/043 , C09C1/309 , C09C1/3692 , C09D7/62 , C09D7/67 , C09D7/68 , C08L21/00
摘要： Composite particles capable of an excellent dispersibility and an excellent light resistance of the present invention have an average particle diameter of 0.001 to 12.0 &mgr;m, comprise: white inorganic particles as core particles; a gluing agent-coating layer formed on at least a parts of the surface of said white inorganic particle; and a black pigment coat composed of carbon black, aniline black or both carbon black and aniline black, formed onto at least a part of the gluing agent-coating layer in an amount of from 1 to 500 parts by weight based on 100 parts by weight of said white inorganic particles.
摘要翻译： 能够得到本发明的优异的分散性和优异的耐光性的复合粒子的平均粒径为0.001〜12.0μm，包含：作为核心粒子的白色无机粒子;形成在至少一部分上的胶合剂涂布层 所述白色无机颗粒的表面; 和由炭黑，苯胺黑或炭黑和苯胺黑组成的黑色颜料涂层，以100重量份的重量份形式在1至500重量份的量的至少一部分胶粘剂涂层上形成 所述白色无机颗粒。
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5.发明授权公开(公告)号：US06544647B1
公开(公告)日：2003-04-08
申请号：US09625404
申请日：2000-07-25
申请人： Kazuyuki Hayashi , Keisuke Iwasaki , Hiroko Morii , Mineko Ohsugi
发明人： Kazuyuki Hayashi , Keisuke Iwasaki , Hiroko Morii , Mineko Ohsugi
IPC分类号： B32B530
CPC分类号： B82Y30/00 , C01P2004/03 , C01P2004/10 , C01P2004/50 , C01P2004/51 , C01P2004/54 , C01P2004/62 , C01P2004/64 , C01P2004/86 , C01P2006/12 , C01P2006/40 , C01P2006/42 , C01P2006/90 , C09C1/22 , G11B5/738 , Y10T428/2991 , Y10T428/2993 , Y10T428/2995 , Y10T428/2998
摘要： Non-magnetic composite particles composed of non-magnetic core particles having an average particle size of 0.01 to 0.3 &mgr;m, and inorganic fine particles having an average particle size of 0.001 to 0.07 &mgr;m. The fine particles are present in an amount of 0.1 to 20% by weight based on the weight of the non-magnetic particles are on the surface of each non-magnetic particle, and are fixed or anchored on the surface of each non-magnetic particle through a silicon compound.The non-magnetic composite particles have a high polishing effect and a high dispersibility, and are useful as a non-magnetic undercoat layer for a magnetic recording medium.
摘要翻译： 由平均粒径为0.01〜0.3μm的非磁性核粒子和平均粒径为0.001〜0.07μm的无机细颗粒构成的非磁性复合粒子。 相对于每个非磁性颗粒的表面上的非磁性颗粒的重量，细颗粒以0.1至20重量％的量存在，并且固定或锚定在每个非磁性颗粒的表面上 通过硅化合物。非磁性复合颗粒具有高抛光效果和高分散性，并且可用作磁记录介质的非磁性底涂层。
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6.发明授权Iron oxide hydroxide composite particles, pigment, paint and resin composition 有权铁氧化物氢氧化物复合颗粒，颜料，油漆和树脂组合物公开(公告)号：US06440561B2
公开(公告)日：2002-08-27
申请号：US09731987
申请日：2000-12-08
申请人： Kazuyuki Hayashi , Mineko Ohsugi , Hiroko Morii
发明人： Kazuyuki Hayashi , Mineko Ohsugi , Hiroko Morii
IPC分类号： B32B904
CPC分类号： B82Y30/00 , C01P2002/88 , C01P2004/10 , C01P2004/20 , C01P2004/50 , C01P2004/51 , C01P2004/54 , C01P2004/62 , C01P2004/64 , C01P2004/80 , C01P2006/12 , C01P2006/32 , C01P2006/60 , C01P2006/62 , C01P2006/63 , C01P2006/64 , C01P2006/66 , C08K3/22 , C08K9/04 , C08K9/06 , C08K9/08 , C09C1/24 , C09D7/62 , C09D7/67 , C09D7/68 , Y10T428/2991 , Y10T428/2995 , Y10T428/2998
摘要： Iron oxide hydroxide composite particles having an average particle diameter of 0.005 to 1.0 &mgr;m, comprises: iron oxide hydroxide particles as core particles, a coating formed on surface of said iron oxide hydroxide particles, comprising at least one organosilicon compound selected from the group consisting of: (1) organosilane compounds obtainable from alkoxysilane compounds, and (2) polysiloxanes or modified polysiloxanes, and an organic pigment coat formed on said coating layer comprising said organosilicon compound, in an amount of from 1 to 30 parts by weight based on 100 parts by weight of said iron oxide hydroxide particles. The iron oxide hydroxide composite particles of the present invention contain no harmful elements and exhibit not only excellent chemical resistances such as acid resistance and alkali resistance, but also excellent heat resistance.
摘要翻译： 平均粒径为0.005〜1.0μm的铁氧化物氢氧化物复合粒子，包含铁氧化物氢氧化物颗粒作为核心颗粒，在所述铁氧化物氢氧化物颗粒的表面上形成的涂层，其包含至少一种选自以下的有机硅化合物： ：（1）由烷氧基硅烷化合物得到的有机硅烷化合物，和（2）聚硅氧烷或改性聚硅氧烷，以及在包含所述有机硅化合物的所述涂层上形成的有机颜料涂层，其量为1〜30重量份，基于100重量份 所述铁氧化物氢氧化物颗粒的重量。 本发明的铁氧化物氢氧化物复合体颗粒不含有害元素，并且不仅具有耐酸性，耐碱性等优异的耐化学性，而且耐热性也优异。
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7.发明申请PROCESS FOR PRODUCING FERROMAGNETIC METAL PARTICLES AND MAGNETIC RECORDING MEDIUM 审中-公开生产铁氰化物金属颗粒和磁记录介质的方法公开(公告)号：US20100035087A1
公开(公告)日：2010-02-11
申请号：US12535978
申请日：2009-08-05
申请人： Hiroko Morii , Keisuke Iwasaki , Seiji Ishitani , Mineko Ohsugi , Shinji Horie , Toshiharu Harada , Takehiro Matsuo , Yosuke Yamamoto , Kazuyuki Hayashi
发明人： Hiroko Morii , Keisuke Iwasaki , Seiji Ishitani , Mineko Ohsugi , Shinji Horie , Toshiharu Harada , Takehiro Matsuo , Yosuke Yamamoto , Kazuyuki Hayashi
CPC分类号： G11B5/714 , B22F1/0025 , B22F9/22 , B22F2998/10 , B82Y30/00 , C22C2202/02 , G11B5/70642 , Y10T428/12014 , B22F2201/05 , B22F2201/013
摘要： The present invention relates to ferromagnetic metal particles having an average major axis diameter (L) of 10 to 100 nm which satisfy a relationship between the average major axis diameter (L) and a particle SFD represented by the following formula: Particle SFD≦0.0001 L2−0.0217 L+1.75; a process for producing the ferromagnetic metal particles; and a magnetic recording medium using the ferromagnetic metal particles.
摘要翻译： 本发明涉及平均长轴直径（L）为10〜100nm的强磁性金属颗粒，其满足平均长轴直径（L）和由下式表示的颗粒SFD之间的关系：颗粒SFD 产生铁磁金属颗粒; 以及使用该强磁性金属粒子的磁记录介质。
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8.发明授权公开(公告)号：US06824867B2
公开(公告)日：2004-11-30
申请号：US10355058
申请日：2003-01-31
申请人： Kazuyuki Hayashi , Keisuke Iwasaki , Hiroko Morii , Mineko Ohsugi
发明人： Kazuyuki Hayashi , Keisuke Iwasaki , Hiroko Morii , Mineko Ohsugi
IPC分类号： G11B570
CPC分类号： B82Y30/00 , C01P2004/03 , C01P2004/10 , C01P2004/50 , C01P2004/51 , C01P2004/54 , C01P2004/62 , C01P2004/64 , C01P2004/86 , C01P2006/12 , C01P2006/40 , C01P2006/42 , C01P2006/90 , C09C1/22 , G11B5/738 , Y10T428/2991 , Y10T428/2993 , Y10T428/2995 , Y10T428/2998
摘要： Non-magnetic composite particles composed of non-magnetic core particles having an average particle size of 0.01 to 0.3 &mgr;m, and inorganic fine particles having an average particle size of 0.001 to 0.07 &mgr;m. The fine particles are present in an amount of 0.1 to 20% by weight based on the weight of the non-magnetic particles are on the surface of each non-magnetic particle, and are fixed or anchored on the surface of each non-magnetic particle through a silicon compound The non-magnetic composite particles have a high polishing effect and a high dispersibility, and are useful as a non-magnetic undercoat layer for a magnetic recording medium.
摘要翻译： 由平均粒径为0.01〜0.3μm的非磁性核粒子和平均粒径为0.001〜0.07μm的无机细颗粒构成的非磁性复合粒子。 相对于每个非磁性颗粒的表面上的非磁性颗粒的重量，细颗粒以0.1至20重量％的量存在，并且固定或锚定在每个非磁性颗粒的表面上 通过硅化合物非磁性复合颗粒具有高抛光效果和高分散性，并且可用作磁记录介质的非磁性底涂层。
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公开(公告)号：US6019834A
公开(公告)日：2000-02-01
申请号：US35054
申请日：1998-03-05
申请人： Kazuyuki Hayashi , Mineko Ohsugi , Hiroko Morii , Mamoru Kamigaki
发明人： Kazuyuki Hayashi , Mineko Ohsugi , Hiroko Morii , Mamoru Kamigaki
IPC分类号： B05D7/24 , C08J3/12 , C09B67/08 , C09C3/00 , C09C3/08 , C09D5/00 , C09D5/02 , C09D7/00 , C09D7/12 , C09C1/00
CPC分类号： B82Y30/00 , C09B67/0008 , C09C3/006 , C09C3/08 , C09D7/007 , C09D7/1225 , C09D7/1275 , C09D7/1283 , C01P2004/03 , C01P2004/10 , C01P2004/20 , C01P2004/32 , C01P2004/38 , C01P2004/41 , C01P2004/54 , C01P2004/61 , C01P2004/62 , C01P2004/64 , C01P2004/86 , C01P2006/12 , C01P2006/60 , C01P2006/80 , C08K3/0033 , C08K9/04 , Y10T428/2991
摘要： A pigment of the present invention comprises:pigment particle as core particle;a lower coat formed on at least a part of surface of the pigment particle, comprising squaric acid, polyol having an anthraquinone skeleton represented by the general formula (I): ##STR1## wherein m is an integer of 0 to 4, n is an integer of 0 to 4 and m+n is an integer of 2 to 4,or a mixture of the squaric acid and the polyol having an anthraquinone skeleton represented by the general formula (I); andan upper coat formed on at least a part of surface of the obtained particle, comprising at least one alkylene glycol represented by the general formula (II):C.sub.q H.sub.2q (OH).sub.2 (II)wherein q is an integer of 2 to 10.Such pigment has excellent dispersion facility, dispersion homogeneity and dispersion stability, and is suitably used for not only organic solvent-type paints but also water-based paints.
摘要翻译： 本发明的颜料包括：作为核心颗粒的颜料颗粒; 在所述颜料颗粒的表面的至少一部分上形成的下层，包含方酸，具有由通式（I）表示的蒽醌骨架的多元醇：其中，m为0〜4的整数，n为0以下的整数 至4，m + n为2〜4的整数，或由通式（I）表示的具有蒽醌骨架的方酸和多元醇的混合物。 以及在所得颗粒的至少一部分表面上形成的上涂层，其包含至少一种由通式（II）表示的亚烷基二醇：CqH2q（OH）2（II），其中q为2至10的整数。 这种颜料具有优异的分散性，分散均匀性和分散稳定性，不仅适用于有机溶剂型涂料，而且适用于水性涂料。
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10.发明申请PROCESS FOR PRODUCING MAGNETIC METAL PARTICLES FOR MAGNETIC RECORDING, AND MAGNETIC RECORDING MEDIUM 审中-公开用于制造用于磁记录的磁性金属颗粒和磁记录介质的方法公开(公告)号：US20120042750A1
公开(公告)日：2012-02-23
申请号：US13285035
申请日：2011-10-31
IPC分类号： B22F9/20
CPC分类号： G11B5/712 , B22F9/22 , B22F2998/10 , B22F2999/00 , C22C33/0235 , C22C2202/02 , G11B5/70642 , H01F1/11 , H01F1/112 , H01F1/113 , C01B13/00 , B22F1/0088 , B22F1/0085 , B22F2201/013
摘要： The present invention relates to a process for producing magnetic metal particles for magnetic recording, comprising:heat-treating goethite particles having an aluminum content of 4 to 50 atom % in terms of Al based on whole Fe to obtain hematite particles; andheat-reducing the hematite particles at a temperature of 200 to 600° C.,the goethite particles being obtained by adding a peroxodisulfate to a reaction solution comprising:a ferrous salt aqueous solution anda mixed alkali aqueous solution comprising:an alkali hydrogen carbonate aqueous solution or alkali carbonate aqueous solution andan alkali hydroxide aqueous solution before initiation of an oxidation reaction of the reaction solution, and then conducting the oxidation reaction.
摘要翻译： 本发明涉及一种磁记录用磁性金属粒子的制造方法，其特征在于，以全Fe为基准，以Al为基准热处理铝含量为4〜50原子％的针铁矿粒子，得到赤铁矿粒子; 并在200〜600℃的温度下还原赤铁矿颗粒，通过向反应溶液中加入过二硫酸盐而得到的针铁矿颗粒，所述反应溶液包含：亚铁盐水溶液和混合碱水溶液，所述混合碱水溶液包含：碱金属氢氧化物 水溶液或碱金属碳酸盐水溶液和碱性氢氧化物水溶液，然后进行氧化反应。
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