利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

21 条记录 (耗时 0.019 秒)

    Arc segment magnet, ring magnet and method for producing such magnets
    2.
    再颁专利
    Arc segment magnet, ring magnet and method for producing such magnets 有权
    弧段磁铁，环形磁铁及其制造方法

    公开(公告)号：USRE40348E1

    公开(公告)日：2008-06-03

    申请号：US10701020

    申请日：2003-11-05

    申请人： Hisato Tokoro ,  Kimio Uchida ,  Kazuo Oda ,  Tsukasa Mikamoto

    发明人： Hisato Tokoro ,  Kimio Uchida ,  Kazuo Oda ,  Tsukasa Mikamoto

    IPC分类号： B22F3/00

    摘要： A thin arc segment magnet made of a an R-T-B based, rare earth sintered magnet substantially comprising 28-33 weight % of R and 0.8-1.5 weight % of B, the balance being substantially Fe T, wherein R is at least one rare earth element including Y, and T is Fe or Fe and Co, which has an oxygen content of 0.3 weight % or less, a density of 7.56 g/cm3 or more, a coercivity iHc of 1.1 MA/m (14 kOe) or more at room temperature, and an orientation Br/4πImax of 96% or more in an anisotropy-providing direction at room temperature can be produced by using a slurry mixture formed by introducing fine alloy powder of the above composition into a mixture liquid comprising 99.7-99.99 parts by weight of a mineral oil, a synthetic oil or a vegetable oil and 0.01-0.3 parts by weight of a nonionic surfactant and/or an anionic surfactant.

    摘要翻译： 一个由<？delete-start id =“DEL-S-00001”date =“20080603”？> a <？delete-end id =“DEL-S-00001”？> <？insert-start id =“INS-S-00001”date =“20080603”？>基于RTB的<？insert-end id =“INS-S-00001”→稀土烧结磁体，其基本上包含28-33重量％的R和 B的0.8-1.5重量％，余额基本上<？delete-start id =“DEL-S-00002”date =“20080603”？Fe <？delete-end id =“DEL-S-00002”？> <？insert-start id =“INS-S-00002”date =“20080603”？> T <？insert-end id =“INS-S-00002”？>其中，R是至少一个稀土元素，包括Y ，T为Fe，Fe，Co，氧含量为0.3重量％以下，密度为7.56g / cm 3以上，矫顽力iHc为1.1MA / m（14 kOe）以上，并且室温下各向异性提供方向的取向Br / 4piI最大值为96％以上，可以通过使用通过引入细合金粉末形成的浆料混合物 的上述组合物混合成混合物 包含99.7-99.99重量份矿物油，合成油或植物油和0.01-0.3重量份非离子表面活性剂和/或阴离子表面活性剂的液体。

    Arc segment magnet, ring magnet and method for producing such magnets
    3.
    发明授权
    Arc segment magnet, ring magnet and method for producing such magnets 有权
    弧段磁铁，环形磁铁及其制造方法

    公开(公告)号：US06312494B1

    公开(公告)日：2001-11-06

    申请号：US09610476

    申请日：2000-07-05

    申请人： Hisato Tokoro ,  Kimio Uchida ,  Kazuo Oda ,  Tsukasa Mikamoto

    发明人： Hisato Tokoro ,  Kimio Uchida ,  Kazuo Oda ,  Tsukasa Mikamoto

    IPC分类号： B22F300

    CPC分类号： H01F41/0273 ,  H01F1/0577

    摘要： A thin arc segment magnet made of a rare earth sintered magnet substantially comprising 28-33 weight % of R and 0.8-1.5 weight % of B, the balance being substantially Fe, wherein R is at least one rare earth element including Y, and T is Fe or Fe and Co, which has an oxygen content of 0.3 weight % or less, a density of 7.56 g/cm3 or more, a coercivity iHc of 1.1 MA/m (14 kOe) or more at room temperature, and an orientation Br/4&pgr;Imax of 96% or more in an anisotropy-providing direction at room temperature can be produced by using a slurry mixture formed by introducing fine alloy powder of the above composition into a mixture liquid comprising 99.7-99.99 parts by weight of a mineral oil, a synthetic oil or a vegetable oil and 0.01-0.3 parts by weight of a nonionic surfactant and/or an anionic surfactant.

    摘要翻译： 一种由稀土烧结磁体制成的薄弧形磁体，其基本上包含28-33重量％的R和0.8-1.5重量％的B，余量基本上为Fe，其中R是至少一种包括Y的稀土元素，T 是Fe或Fe和Co，其氧含量为0.3重量％以下，密度为7.56g / cm 3以上，室温下的矫顽力iHc为1.1MA / m（14kOe）以上，取向性 室温各向异性提供方向的Br / 4piImax为96％以上可以通过使用通过将上述组成的微细合金粉末引入到包含99.7-99.99重量份的矿物油 ，合成油或植物油，0.01-0.3重量份非离子表面活性剂和/或阴离子表面活性剂。

    COMPOSITE, SOFT-MAGNETIC POWDER AND ITS PRODUCTION METHOD, AND DUST CORE FORMED THEREBY
    4.
    发明申请
    COMPOSITE, SOFT-MAGNETIC POWDER AND ITS PRODUCTION METHOD, AND DUST CORE FORMED THEREBY 审中-公开
    复合，软磁粉及其生产方法，并形成核心

    公开(公告)号：US20130277601A1

    公开(公告)日：2013-10-24

    申请号：US13978027

    申请日：2012-03-06

    申请人： Fumi Kurita ,  Hisato Tokoro

    发明人： Fumi Kurita ,  Hisato Tokoro

    IPC分类号： H01F1/01 ,  H01F41/00

    CPC分类号： H01F1/01 ,  B22F1/02 ,  C22C29/16 ,  H01F1/24 ,  H01F41/005 ,  H01F41/0246

    摘要： A composite, soft-magnetic powder comprising soft-magnetic, iron-based core particles having an average particle size of 2-100 μm, and boron nitride-based coating layers each covering at least part of each soft-magnetic, iron-based core particle, said coating layers being polycrystalline layers comprising fine boron nitride crystal grains having different crystal orientations and an average crystal grain size of 3-15 nm, the average thickness of said polycrystalline layers being 6.6% or less of the average particle size of said soft-magnetic, iron-based core particles, is produced by (1) mixing iron nitride powder having an average particle size of 2-100 μm with boron powder having an average particle size of 0.1-10 μm, (2) heat-treating the resultant mixed powder at a temperature of 600-850° C. in a nitrogen atmosphere, and (3) removing non-magnetic components.

    摘要翻译： 一种复合软磁粉末，其包含平均粒度为2〜100μm的软磁性铁系核心粒子，以及氮化硼系涂覆层，其各自覆盖至少部分软磁性铁基磁心 所述涂层是包含具有不同晶体取向的平均晶粒尺寸为3-15nm的精细氮化硼晶粒的多晶层，所述多晶层的平均厚度为所述软化物的平均粒径的6.6％以下 通过（1）将平均粒径为2〜100μm的氮化铁粉末与平均粒径为0.1〜10μm的硼粉末混合，制成铁磁性核心颗粒，（2）热处理 得到的混合粉末在氮气气氛中在600-850℃的温度下，和（3）去除非磁性组分。

    Coated, fine metal particles comprising titanium oxide and silicon oxide coating, and their production method
    5.
    发明授权
    Coated, fine metal particles comprising titanium oxide and silicon oxide coating, and their production method 有权
    涂布的包含氧化钛和氧化硅涂层的金属微粒及其制造方法

    公开(公告)号：US08481115B2

    公开(公告)日：2013-07-09

    申请号：US12934589

    申请日：2009-03-26

    申请人： Hisato Tokoro ,  Takashi Nakabayashi ,  Shigeo Fujii

    发明人： Hisato Tokoro ,  Takashi Nakabayashi ,  Shigeo Fujii

    IPC分类号： B32B5/16 ,  B05D7/00 ,  B05D7/14 ,  B05D3/10

    CPC分类号： B22F9/20 ,  B22F1/02 ,  B22F2999/00 ,  C22C1/058 ,  Y10T428/2993 ,  B22F1/0088 ,  B22F1/0085

    摘要： A method for producing coated, fine metal particles each having a Ti oxide coating and a silicon oxide coating formed in this order on a metal core particle by mixing powder comprising TiC and TiN with oxide powder of a metal M meeting the relation of ΔGM-O>ΔGTiO2, wherein ΔGM-O represents the standard free energy of forming an oxide of the metal M; heat-treating the resultant mixed powder in a non-oxidizing atmosphere to reduce the oxide of the metal M with the powder comprising TiC and TiN, while coating the resultant metal M particles with Ti oxide; coating the Ti-oxide-coated surface with silicon oxide; and classifying the resultant particles such that they have a median diameter d50 of 0.4-0.7 μm, and a variation coefficient (=standard deviation/average particle size) of 35% or less, which indicates a particle size distribution range. Coated, fine metal particles each having a Ti oxide coating and a silicon oxide coating formed in this order on a metal core particle, which has a median diameter d50 of 0.4-0.7 μm, and a variation coefficient (=standard deviation/average particle size) of 35% or less, which indicates a particle size distribution range.

    摘要翻译： 一种生产涂覆的金属微粒的方法，其具有通过将包含TiC和TiN的粉末与满足DeltaGM-O的关系的金属M的氧化物粉末混合在一起而在金属芯颗粒上依次形成的氧化钛涂层和氧化硅涂层 > DeltaGTiO 2，其中ΔGM-O表示形成金属M的氧化物的标准自由能; 在非氧化气氛下对所得混合粉末进行热处理，同时用Ti氧化物涂覆所得到的金属M颗粒，同时用含有TiC和TiN的粉末来还原金属M的氧化物; 用氧化硅涂覆Ti氧化物涂层表面; 对所得颗粒进行分级，使其中值粒径d50为0.4〜0.7μm，变动系数（=标准偏差/平均粒径）为35％以下，表示粒径分布范围。 涂覆有金属颗粒，每个氧化铝涂层和氧化硅涂层依次形成在金属芯颗粒上，中心粒径d50为0.4-0.7μm，变化系数（=标准偏差/平均粒径 ）为35％以下，表示粒径分布范围。

    Coated, fine metal particles comprising specific content of carbon and nitrogen, and their production method
    6.
    发明授权
    Coated, fine metal particles comprising specific content of carbon and nitrogen, and their production method 有权
    涂布的包含碳和氮的特定含量的金属微粒及其制造方法

    公开(公告)号：US08247074B2

    公开(公告)日：2012-08-21

    申请号：US12442047

    申请日：2007-09-18

    申请人： Hisato Tokoro ,  Shigeo Fujii ,  Takashi Nakabayashi

    发明人： Hisato Tokoro ,  Shigeo Fujii ,  Takashi Nakabayashi

    IPC分类号： B32B5/16 ,  B05D7/00

    CPC分类号： G11B5/712 ,  B22F1/02 ,  B22F9/20 ,  B82Y25/00 ,  C22C33/0235 ,  G01N33/553 ,  H01F1/0054 ,  H01F1/33 ,  Y10T428/2991 ,  Y10T428/2993

    摘要： A method for producing coated, fine metal particles comprising the steps of mixing powder comprising TiC and TiN with powder of an oxide of a metal M meeting the relation of ΔGM-O>ΔGTiO2, wherein ΔGM-O represents the standard free energy of formation of metal M oxide, and heat-treating the resultant mixed powder in a non-oxidizing atmosphere to reduce the oxide of the metal M with the powder comprising TiC and TiN, while coating the resultant metal M particles with Ti oxide, and coated, fine metal particles each comprising a metal core particle and a Ti oxide coating and having a carbon content of 0.2-1.4% by mass and a nitrogen content of 0.01-0.2% by mass.

    摘要翻译： 一种制备涂覆的金属微粒的方法，包括以下步骤：将包含TiC和TiN的粉末与满足以下关系的金属M的氧化物粉末混合;其中＆Dgr; GMi代表 标准形成金属M氧化物的自由能，并且在非氧化气氛中对所得混合粉末进行热处理，以用包含TiC和TiN的粉末来还原金属M的氧化物，同时用Ti氧化物涂覆所得金属M颗粒 和包含金属核粒子和Ti氧化物被膜，碳含量为0.2〜1.4质量％，氮含量为0.01〜0.2质量％的金属微粒子。

    Fine, TiO2-based titanium oxide-coated metal particles and their production method
    7.
    发明授权
    Fine, TiO2-based titanium oxide-coated metal particles and their production method 有权
    精细的TiO2基二氧化钛涂覆金属颗粒及其制备方法

    公开(公告)号：US07858184B2

    公开(公告)日：2010-12-28

    申请号：US11909237

    申请日：2006-03-15

    申请人： Hisato Tokoro ,  Shigeo Fujii

    发明人： Hisato Tokoro ,  Shigeo Fujii

    IPC分类号： B32B5/16 ,  B05D3/02 ,  B05D3/10 ,  B05D7/00

    CPC分类号： B22F1/02 ,  B22F1/0088 ,  B22F2998/10 ,  G11B5/712 ,  H01F1/112 ,  Y10T428/2991

    摘要： A method for producing fine, coated metal particles comprising the steps of mixing Ti-containing powder except for Ti oxide powder with oxide powder of a metal M, an M oxide having a standard free energy of formation meeting the relation of ΔGM-O>ΔGTiO2; and heat-treating the resultant mixed powder at a temperature of 650-900° C. in a non-oxidizing atmosphere, thereby reducing the oxide of the metal M with Ti to provide the resultant fine particles of the metal M with TiO2-based titanium oxide coating.

    摘要翻译： 一种制造精细的涂覆金属颗粒的方法，包括以下步骤：将除Ti氧化物粉末之外的含Ti粉末与金属M的氧化物粉末，具有满足关系的标准自由能的M氧化物混合; GM-O >＆Dgr; GTiO2; 在非氧化性气氛中，在650-900℃的温度下对所得到的混合粉末进行热处理，由此用Ti还原金属M的氧化物，得到金属M的细小颗粒与TiO 2钛 氧化物涂层。

    FINE, COATED METAL PARTICLES AND THEIR PRODUCTION METHOD
    8.
    发明申请
    FINE, COATED METAL PARTICLES AND THEIR PRODUCTION METHOD 有权
    精细，涂层金属颗粒及其生产方法

    公开(公告)号：US20090057605A1

    公开(公告)日：2009-03-05

    申请号：US11909237

    申请日：2006-03-15

    申请人： Hisato Tokoro ,  Shigeo Fujii

    发明人： Hisato Tokoro ,  Shigeo Fujii

    IPC分类号： H01F1/04

    CPC分类号： B22F1/02 ,  B22F1/0088 ,  B22F2998/10 ,  G11B5/712 ,  H01F1/112 ,  Y10T428/2991

    摘要： A method for producing fine, coated metal particles comprising the steps of mixing Ti-containing powder except for Ti oxide powder with oxide powder of a metal M, an M oxide having a standard free energy of formation meeting the relation of ΔGM-O>ΔGTiO2; and heat-treating the resultant mixed powder at a temperature of 650-900° C. in a non-oxidizing atmosphere, thereby reducing the oxide of the metal M with Ti to provide the resultant fine particles of the metal M with TiO2-based titanium oxide coating.

    摘要翻译： 一种生产精细的涂覆金属颗粒的方法，包括以下步骤：将除Ti氧化物粉末之外的含Ti粉末与金属M的氧化物粉末混合，具有符合DeltaGM-O> DeltaGTiO2的关系的标准自由能的M氧化物 ; 在非氧化性气氛中，在650-900℃的温度下对所得到的混合粉末进行热处理，由此用Ti还原金属M的氧化物，得到金属M的细小颗粒与TiO 2钛 氧化物涂层。