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1. 发明专利

JP2008220260A Method for magnetic separation of magnetic particle 审中-公开
标题翻译：磁性粒子的磁分离方法
公开(公告)号：JP2008220260A
公开(公告)日：2008-09-25
申请号：JP2007062806
申请日：2007-03-13
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： KANEKO YASUSHI , FUJII SHIGEO , TOKORO HISATO , MASUZAWA MASAHIRO
IPC分类号： C12N15/09 , B03C1/00 , B22F1/02
摘要： PROBLEM TO BE SOLVED: To provide a method for magnetic separation of magnetic particles, which effectively carries out cleaning by application of a magnetic field suitable for redispersion of beads in spite of adopting magnetic particles having high magnetic response. SOLUTION: In the method for collecting magnetic particles by applying a magnetic field from the outside to a suspension containing a magnetic particle for extracting a biological substance dispersed in a solution containing a biological substance, the method for magnetic separation of magnetic particle has the saturation magnetization of the magnetic particle in the range of 80-180 Am 2 /kg and the magnetic flux density of a magnetic field to be applied from the outside in the range of 0.2 T-0.4 T. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种磁性颗粒的磁分离方法，其通过施加适于珠粒再分散的磁场而有效地进行清洁，尽管采用具有高磁响应的磁性颗粒。解决方案：在从外部施加磁场到包含用于提取分散在含有生物物质的溶液中的生物物质的磁性颗粒的悬浮液的磁场收集方法中，磁性粒子的磁分离方法具有磁性粒子的饱和磁化强度在80-180Am 2 / SP / kg的范围内，以及从外部施加在0.2T-0.4T范围内的磁场的磁通密度。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2008075118A Coated metal microparticle and production method therefor 有权
标题翻译：包覆金属微生物及其生产方法
公开(公告)号：JP2008075118A
公开(公告)日：2008-04-03
申请号：JP2006254671
申请日：2006-09-20
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： TOKORO HISATO , NAKABAYASHI TAKASHI , FUJII SHIGEO
IPC分类号： B22F1/02 , B22F9/20 , G11B5/712 , G11B5/842 , H01F1/24 , H01F1/44
摘要： PROBLEM TO BE SOLVED: To provide coated metal microparticles which have superior corrosion resistance and large specific surface area, and to provide a method for producing such coated metal microparticles.
SOLUTION: This production method comprises the steps of; mixing a powder containing Ti (except powder of Ti oxide) with an oxide powder of a metal (M) having such a standard free energy of formation of the oxide as to satisfy a relationship of ΔG
M-O >ΔG
TiO2 ; obtaining coated metal microparticles by reducing an oxide of the metal (M) by heat-treating the mixed powder obtained in the first step, at 650 to 900°C in a non-oxidative atmosphere; and coating the surface of the obtained microparticles of the metal (M) with Ti oxide which includes TiO
2 as a main component; and immersing the coated metal microparticles in an artificial liquid of a living body.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的耐腐蚀性和大的比表面积的涂覆金属微粒，并提供这种涂覆的金属微粒的制造方法。解决方案：该生产方法包括以下步骤：将含有Ti（除了Ti氧化物粉末）的粉末与具有形成氧化物的标准自由能的金属（M）的氧化物粉末混合以满足ΔG MO >ΔG的关系二氧化钛; 通过在非氧化性气氛中在650〜900℃下热处理第一工序中得到的混合粉末来还原金属（M）的氧化物而得到被覆金属微粒子; 并用包含TiO 2 SB SB2的主要成分的Ti氧化物涂覆得到的金属（M）微粒的表面; 将被覆金属微粒浸渍在生物体的人造液中。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2007089563A Method for extracting nucleic acid, method for detecting cancer cell, and magnetic bead 有权
标题翻译：提取核酸的方法，检测癌细胞的方法和磁珠
公开(公告)号：JP2007089563A
公开(公告)日：2007-04-12
申请号：JP2006133292
申请日：2006-05-12
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： NAKABAYASHI TAKASHI , FUJII SHIGEO
IPC分类号： C12N15/09 , C12Q1/02 , G01N33/574
摘要： PROBLEM TO BE SOLVED: To provide a method for rapidly extracting a nucleic acid from a subject, and to provide a magnetic bead capable of rapidly recovering a target cell. SOLUTION: This method for extracting the nucleic acid comprises adding the magnetic bead to the subject containing the cell, making the magnetic bead capture the cell, and separating the cell captured by the magnetic bead from the subject by using magnetic force, so that the nucleic acid of the cell is extracted with the magnetic bead. Further, the magnetic bead for recovering the cell comprises a magnetic bead in which a core of a metal particle consisting mainly of a magnetic metal is multilayeredly covered with two or more kinds of inorganic materials different from each other and has a probe having affinity for a desired cell on the surface of the magnetic bead. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种从受试者中快速提取核酸的方法，并提供能够快速回收靶细胞的磁珠。解决方案：提取核酸的方法包括向含有细胞的受试者加入磁珠，使磁珠捕获细胞，并通过使用磁力将受磁珠捕获的细胞与受试者分离，因此用磁珠提取细胞的核酸。此外，用于回收电池的磁珠包括磁珠，其中主要由磁性金属组成的金属颗粒的芯多层覆盖有两种或更多种彼此不同的无机材料，并且具有对于磁珠表面上的所需电池。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2005097037A Method for manufacturing micro body and micro body 审中-公开
标题翻译：用于制造微体和微体的方法
公开(公告)号：JP2005097037A
公开(公告)日：2005-04-14
申请号：JP2003332939
申请日：2003-09-25
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： TOKORO HISATO , FUJII SHIGEO , KAWADA TSUNEHIRO
IPC分类号： B82B3/00 , B01J19/00 , C01B13/14 , C01B21/076
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive nano material excellent in mass-productivity and to provide its manufacturing method.
SOLUTION: Oxide powder of metal M1 is mixed with powder containing an element M2 having the standard free energy of formation of an oxide which satisfies the relation of ΔG
M1-O >ΔGM
2-O . The mixture powder is heat treated in a nonoxidative atmosphere to produce a micro body comprising at least one of an oxide of M2 or a nitride of M2. The diameter r and the length L in the longitudinal direction of the micro body preferably satisfy r/L≤0.2.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种价格便宜的批量生产率的纳米材料，并提供其制造方法。解决方案：将金属M1的氧化物粉末与含有具有形成氧化物的标准自由能的元素M2的粉末混合，满足关系式ΔG M1-O >ΔGM 2 -O 。将混合物粉末在非氧化气氛中进行热处理以产生包含M2的氧化物或M2的氮化物中的至少一种的微体。微型体的长度方向的直径r和长度L优选满足r /L≤0.2。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2005091241A Magnetic particle 有权
标题翻译：磁性颗粒
公开(公告)号：JP2005091241A
公开(公告)日：2005-04-07
申请号：JP2003327035
申请日：2003-09-19
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： TOKORO HISATO , FUJII SHIGEO
IPC分类号： G01N33/531 , B22F1/02 , B22F9/02 , B22F9/20 , C23C30/00 , G01N33/543 , G01N33/553
摘要： PROBLEM TO BE SOLVED: To provide magnetic particles for magnetic beads capable of being efficiently separated from bodily samples after mixture or reaction with the bodily samples.
SOLUTION: Both metal particles having a means particle diameter of 1 μm or less acquired by reducing a metal oxide with carbon and magnetic particles for magnetic beads having carbon particles or a carbon film for including or carrying the metal particles are prepared. Or both metal particles having a means particle diameter of 1 μm or less acquired by reducing a metal oxide with boron and magnetic particles for magnetic beads having boron nitride particles or a boron nitride film for including or carrying the metal particles are prepared. The surfaces of the magnetic particles are preferably coated with a precious metal constituted of at least one of gold, silver, and platinum group elements.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供能够在与身体样品混合或反应之后能够有效地从身体样品分离的磁珠的磁性颗粒。解决方案：制备通过用碳还原金属氧化物获得的平均粒径为1μm以下的金属颗粒和用于包含或承载金属颗粒的碳颗粒或碳膜的磁珠的磁性颗粒。或者制备通过用硼还原金属氧化物获得的平均粒径为1μm以下的金属颗粒，以及用于包含或承载金属颗粒的具有氮化硼颗粒的磁珠或用于磁珠的磁性颗粒的两种金属颗粒。磁性颗粒的表面优选涂覆有由金，银和铂族元素中的至少一种构成的贵金属。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2005089796A Metal hyperfine particle, method of producing metal hyperfine particle, method of producing microbody, and microbody 有权
标题翻译：金属高分子颗粒，生产金属高分子颗粒的方法，生产微结构的方法和微结构
公开(公告)号：JP2005089796A
公开(公告)日：2005-04-07
申请号：JP2003322474
申请日：2003-09-16
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： TOKORO HISATO , FUJII SHIGEO , OKU TAKEO
IPC分类号： B22F9/20 , B22F1/02 , H01F1/06
摘要： PROBLEM TO BE SOLVED: To safely and easily provide metal hyperfine particles in which a B/C/N compound film is applied to the surfaces of metal particles, and suitable for industrial utilization. SOLUTION: Powder (a+b+c powder) obtained by mixing powder composed of the oxide of transition metal (a powder), boron powder (b powder) and carbon powder (c powder) is heat-treated in the range of 800 to 1,700°C in a gaseous nitrogen atmosphere or a gaseous ammonia atmosphere or a gaseous mixture atmosphere comprising at least one kind selected therefrom. Thus, metal hyperfine particles in which the surfaces of particles 1 composed of transition metal with a mean particle diameter of ≤1 μm or an alloy comprising at least one kind of transition metal are coated with boron nitride 2 are obtained. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了安全和容易地提供金属超细颗粒，其中将B / C / N化合物膜施加到金属颗粒的表面上，并适于工业利用。解决方案：将由过渡金属的氧化物（粉末），硼粉（b粉末）和碳粉末（c粉末）组成的粉末混合得到的粉末（a + b + c粉末）在该范围内进行热处理在气态氮气氛或气态氨气氛中包含800至1,700℃或包含从其中选择的至少一种的气体混合气体。因此，获得其中由氮化硼2涂覆平均粒径≤1μm的由过渡金属构成的颗粒1的表面或包含至少一种过渡金属的合金的金属超细颗粒。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2004259807A Dust core and magnetic powder therefor 审中-公开
公开(公告)号：JP2004259807A
公开(公告)日：2004-09-16
申请号：JP2003046835
申请日：2003-02-25
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： TOKORO HISATO , FUJII SHIGEO
IPC分类号： H01F1/20 , H01F1/22
摘要： PROBLEM TO BE SOLVED: To provide magnetic powder having a high electric resistance and a high magnetic flux density for a dust core. SOLUTION: The magnetic powder of a dust core is mainly made of metal particles obtained by reducing metal oxides, the surface of the metal particle is coated with, at least, one of carbon and boron nitride, and the metal particles are 0.001 to 1 μm in average grain diameter. Furthermore, the dust core magnetic powder contains, at least, one of Fe, Co, and Ni. Resin is added to the dust core magnetic powder, and the mixture of the resin and the dust core magnetic powder is press-molded into the dust core. COPYRIGHT: (C)2004,JPO&NCIPI

8. 发明专利

JP2004253697A Permanent magnet and material thereof 审中-公开
标题翻译：永久磁铁及其材料
公开(公告)号：JP2004253697A
公开(公告)日：2004-09-09
申请号：JP2003044196
申请日：2003-02-21
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： TOKORO HISATO , FUJII SHIGEO
IPC分类号： H01F1/08 , H01F1/06
摘要： PROBLEM TO BE SOLVED: To provide a simple, low-priced, and high performance nano-composite type magnet which is applicable to an anisotropic sintering magnet or a bond magnet, and can be manufactured without departing largely from a conventional magnet manufacturing process. SOLUTION: In a permanent magnet material for a permanent magnet having a nano-composite crystalline, the permanent magnet material contains a soft magnetic powder and a hard magnetic powder, and the soft magnetic powder is formed by coating at least a part of the surface of a soft magnetic metal particle with boron nitride, and the mean particle size of the metal particle is 0.01-1μm. COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：提供一种适用于各向异性烧结磁体或粘结磁体的简单，低价格和高性能的纳米复合型磁体，并且可以在不脱离常规磁体制造的情况下制造处理。解决方案：在具有纳米复合结晶的永磁体用永久磁铁材料中，永久磁铁材料含有软磁性粉末和硬磁性粉末，软磁性粉末是通过将至少一部分具有氮化硼的软磁性金属颗粒的表面，金属颗粒的平均粒径为0.01-1μm。版权所有（C）2004，JPO＆NCIPI

9. 发明专利

JP2004124248A Ultra-fine metal particle, microbody and their production processes 有权
公开(公告)号：JP2004124248A
公开(公告)日：2004-04-22
申请号：JP2003035419
申请日：2003-02-13
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： TOKORO HISATO , FUJII SHIGEO , OKU TAKEO
IPC分类号： B22F9/20 , B22F1/02 , G11B5/706 , G11B5/712 , G11B5/714 , G11B5/84 , H01F1/20
摘要： PROBLEM TO BE SOLVED: To provide an ultra-fine metal particle which is safe, convenient and suitable for industrial use wherein a boron nitride coated film is deposited on the surface of a metal particle. SOLUTION: The ultra-fine metal particle wherein the surface of the particle is coated with boron nitride is obtained by heat-treating a powder (powder a+b) wherein a powder (powder a) composed of an oxide of a transition metal oxide is mixed with a boron powder (powder b) in an atmosphere of nitrogen gas or ammonia gas or a mixed gas atmosphere containing at least one chosen from these at 800-1,700°C. Here, the particle has an average particle size of ≤1 μm and is composed of the transition metal or an alloy containing at least one transition metal. COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2011246820A Iron-based nanosize particle and method for producing the same 有权
标题翻译：基于铁的纳米颗粒及其生产方法
公开(公告)号：JP2011246820A
公开(公告)日：2011-12-08
申请号：JP2011153409
申请日：2011-07-12
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： TOKORO HISATO , KANEKO YASUSHI , FUJII SHIGEO
IPC分类号： B22F1/02 , B22F9/20 , C22C19/03 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide an iron-based nanosize particle having high magnetic properties and excellent oxidation resistance.SOLUTION: This iron-based nanosize particle comprises a metal particle having a composition mainly consisting of Fe and containing Ni, and a coating layer mainly consisting of C or a coating layer of an oxide or a nitride of at least one kind of metal element selected from Al, As, B, Ce, Cl, Co, Cr, Ga, Hf, In, Mn, Nb, Ti, V, Zr, Sc, Si, Y, and Ta. Preferably, the metal particle has a composition in a range of a mass ratio of Ni/Fe of 0.01-0.1 or 0.4-15.
摘要翻译：要解决的问题：提供具有高磁性和优异抗氧化性的铁基纳米颗粒。解决方案：该铁基纳米粒子包含主要由Fe组成且含有Ni的组成的金属颗粒，以及主要由C组成的涂层或者至少一种选自Al，As，B，Ce，Cl，Co，Cr，Ga，Hf，In，Mn，Nb，Ti，V，Zr，Sc，Si，Y和Ta中的金属元素。优选地，金属颗粒的组成在Ni / Fe的质量比为0.01-0.1或0.4-15的范围内。版权所有（C）2012，JPO＆INPIT

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