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    Method for production of silver fine powder covered with organic substance, and silver fine powder
    3.
    发明授权
    Method for production of silver fine powder covered with organic substance, and silver fine powder 有权
    生产用有机物覆盖的银细粉的方法和银精细粉

    公开(公告)号：US08420165B2

    公开(公告)日：2013-04-16

    申请号：US12601977

    申请日：2008-05-28

    申请人： Kimitaka Sato ,  Balachandran Jeyadevan ,  Kazuyuki Tohji

    发明人： Kimitaka Sato ,  Balachandran Jeyadevan ,  Kazuyuki Tohji

    IPC分类号： B05D7/00

    CPC分类号： B22F1/0062 ,  B22F9/24 ,  B22F2998/00 ,  B22F1/0022

    摘要： Provided is a method for producing a silver fine powder covered with an organic substance, which comprises a step of mixing (i) a dispersion of silver particles covered with a protective material X1 that comprises an organic compound having an unsaturated bond and having a molecular weight of from 150 to 1000 in a liquid organic medium A, (ii) a protective material X2 that comprises an organic compound of which the number of the carbon atoms constituting the carbon skeleton is smaller than that of the organic compound to constitute the protective material X1, and (iii) a liquid organic medium B of which the ability to dissolve the protective material X1 therein is higher than that of the liquid organic medium A, thereby promoting the dissolution of the protective material X1 in the liquid organic medium B and the adhesion of the protective material X2 to the surface of the silver particles. Accordingly, the invention provides an industrial, large-scale mass-production system for a silver fine powder covered with a protective material having a low molecular weight, of which the sintering temperature can be greatly lowered.

    摘要翻译： 本发明提供一种覆盖有机物质的银细粉的制造方法，其特征在于，包括以下步骤：（i）由保护材料X1覆盖的银粒子的分散液，所述保护材料X1包含具有不饱和键的有机化合物，分子量 在液态有机介质A中为150〜1000，（ii）包含构成碳骨架的碳原子数小于构成保护材料X1的有机化合物的有机化合物的保护材料X2 ，和（iii）其中溶解保护材料X1的能力高于液体有机介质A的液体有机介质B，从而促进保护材料X1在液体有机介质B中的溶解和粘附 的保护材料X2到银颗粒的表面。 因此，本发明提供了一种用低分子量保护材料覆盖的银粉末的工业大规模批量生产系统，其烧结温度可以大大降低。

    Sample holder for maldi mass spectrometric analysis, and mass spectrometric analysis method
    4.
    发明授权
    Sample holder for maldi mass spectrometric analysis, and mass spectrometric analysis method 有权
    用于马氏质谱分析的样品架和质谱分析方法

    公开(公告)号：US08278117B2

    公开(公告)日：2012-10-02

    申请号：US13429570

    申请日：2012-03-26

    申请人： Tetsu Yonezawa ,  Kimitaka Sato

    发明人： Tetsu Yonezawa ,  Kimitaka Sato

    IPC分类号： G01N24/00

    CPC分类号： H01J49/0418 ,  Y10T436/175383 ,  Y10T436/203332 ,  Y10T436/24

    摘要： Used is a sample holder for MALDI mass spectrometry, which has a CuO secondary particle as a laser-beam-absorbing matrix and in which the secondary particle comprises an aggregate of CuO primary particles having an average particle diameter of 100 nm or smaller and has an uneven surface arising from the shape formed by the primary particles constituting the outermost surface of the secondary particle. As the CuO secondary particle, usable is one derived from a CuO powder produced by baking basic copper carbonate in air at 200 to 300° C., and the basic copper carbonate is produced in a process of mixing an aqueous ammonium hydrogencarbonate solution and an aqueous copper nitrate solution. The CuO secondary particle has an average particle diameter of, for example, from 0.3 to 10 μm.

    摘要翻译： 使用的是用于MALDI质谱的样品架，其具有CuO二次粒子作为激光束吸收基质，其中二次粒子包含平均粒径为100nm以下的CuO一次粒子的聚集体，并具有 由构成二次粒子的最外表面的一次粒子形成的形状产生不均匀的表面。 作为CuO二次粒子，可以使用通过在200〜300℃的空气中焙烧碱性碳酸铜而制造的CuO粉末，碱性碳酸铜是在将碳酸氢铵水溶液和水溶液 硝酸铜溶液 CuO二次粒子的平均粒径例如为0.3〜10μm。

    Silver particle dispersion ink
    5.
    发明授权
    Silver particle dispersion ink 有权
    银颗粒分散油墨

    公开(公告)号：US08003019B2

    公开(公告)日：2011-08-23

    申请号：US12522418

    申请日：2007-01-09

    申请人： Kimitaka Sato ,  Kozo Ogi

    发明人： Kimitaka Sato ,  Kozo Ogi

    IPC分类号： H01B1/22

    CPC分类号： C09D11/30 ,  B22F1/0022 ,  B22F9/24 ,  B82Y30/00 ,  C08K3/08 ,  C08K9/04 ,  C09D7/62 ,  C09D7/67 ,  C09D11/52 ,  Y10T428/2982 ,  Y10T428/2991 ,  Y10T428/2998

    摘要： A silver particle dispersion liquid comprising a silver particle powder having an average particle diameter (DTEM) of 50 nm or less, the surface of the particle being covered with an organic protective material, dispersed in a non-polar or small polar liquid organic medium having a boiling point of 60 to 300° C., wherein the organic protective material is an amine compound having one or more unsaturated bonds in one molecule. The silver particle dispersion liquid can be produced by reducing a silver compound in a liquid including one or more alcohol or polyol acting as a reducing agent, wherein the reduction reaction is conducted in the presence of an amine compound having a molecular weight of 100 to 1,000 and having one or more unsaturated bonds in one molecule.

    摘要翻译： 一种银粒子分散液，其包含平均粒径（DTEM）为50nm以下的银粒子粉末，其表面被有机保护材料覆盖，分散在非极性或小极性液体有机介质中，所述非极性或小极性液体有机介质具有 沸点为60〜300℃，其中有机保护材料是在一个分子中具有一个或多个不饱和键的胺化合物。 银粒子分散液可以通过还原包含一种或多种作为还原剂的醇或多元醇的液体中的银化合物来制备，其中还原反应在分子量为100至1,000的胺化合物存在下进行 并且在一个分子中具有一个或多个不饱和键。

    SAMPLE HOLDER FOR MALDI MASS SPECTROMETRIC ANALYSIS, AND MASS SPECTROMETRIC ANALYSIS METHOD
    6.
    发明申请
    SAMPLE HOLDER FOR MALDI MASS SPECTROMETRIC ANALYSIS, AND MASS SPECTROMETRIC ANALYSIS METHOD 有权
    质谱仪用于MALDI质谱分析和质谱分析方法

    公开(公告)号：US20100197034A1

    公开(公告)日：2010-08-05

    申请号：US12666656

    申请日：2008-06-25

    申请人： Tetsu Yonezawa ,  Kimitaka Sato

    发明人： Tetsu Yonezawa ,  Kimitaka Sato

    IPC分类号： G01N33/00 ,  B01L9/00

    CPC分类号： H01J49/0418 ,  Y10T436/175383 ,  Y10T436/203332 ,  Y10T436/24

    摘要： Used is a sample holder for MALDI mass spectrometry, which has a CuO secondary particle as a laser-beam-absorbing matrix and in which the secondary particle comprises an aggregate of CuO primary particles having an average particle diameter of 100 nm or smaller and has an uneven surface arising from the shape formed by the primary particles constituting the outermost surface of the secondary particle. As the CuO secondary particle, usable is one derived from a CuO powder produced by baking basic copper carbonate in air at 200 to 300° C., and the basic copper carbonate is produced in a process of mixing an aqueous ammonium hydrogencarbonate solution and an aqueous copper nitrate solution. The CuO secondary particle has an average particle diameter of, for example, from 0.3 to 10 μm.

    摘要翻译： 使用的是用于MALDI质谱的样品架，其具有CuO二次粒子作为激光束吸收基质，其中二次粒子包含平均粒径为100nm以下的CuO一次粒子的聚集体，并具有 由构成二次粒子的最外表面的一次粒子形成的形状产生不均匀的表面。 作为CuO二次粒子，可以使用通过在200〜300℃的空气中焙烧碱性碳酸铜而制造的CuO粉末，碱性碳酸铜是在将碳酸氢铵水溶液和水溶液 硝酸铜溶液 CuO二次粒子的平均粒径例如为0.3〜10μm。

    Magnetic material
    7.
    发明申请
    Magnetic material 有权
    磁性材料

    公开(公告)号：US20080057352A1

    公开(公告)日：2008-03-06

    申请号：US11892911

    申请日：2007-08-28

    申请人： Shin-ichi Ohkoshi ,  Shunsuke Sakurai ,  Shiro Kuroki ,  Kimitaka Sato ,  Shinya Sasaki

    发明人： Shin-ichi Ohkoshi ,  Shunsuke Sakurai ,  Shiro Kuroki ,  Kimitaka Sato ,  Shinya Sasaki

    IPC分类号： G11B5/706 ,  B32B5/16 ,  C04B35/26

    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

    Assemblages of magnetic alloy nanoparticles (as amended)
    8.
    发明申请
    Assemblages of magnetic alloy nanoparticles (as amended) 有权
    磁性合金纳米颗粒的组合（经修订）

    公开(公告)号：US20070125453A1

    公开(公告)日：2007-06-07

    申请号：US10566169

    申请日：2004-07-30

    申请人： Kimitaka Sato

    发明人： Kimitaka Sato

    IPC分类号： H01F1/06

    CPC分类号： B22F1/0022 ,  B22F9/24 ,  B22F2998/00 ,  B82Y25/00 ,  B82Y30/00 ,  C22C1/0491 ,  H01F1/0054 ,  H01F1/065 ,  H01F1/068 ,  H01F10/007 ,  Y10T428/12014 ,  Y10T428/12181 ,  Y10T428/12993

    摘要： Assemblages of particles of a magnetic alloy that are suited to magnetic recording are represented by the formula [TXM1-X] containing T and M in a composition ratio where X in the formula is in the range from 0.3 or greater to 0.7 or less, where T is one or two members of the group consisting of Fe and Co and M is one or two members of the group consisting of Pt and Pd, and metallic elements other than T and M that constitute no more than 30 at. % (including 0 at. %) of (T+M) as a percentage of atoms, and the remainder consists of impurities that are unavoidable from a production standpoint, wherein: the face-centered tetragonal fraction is 10-100%, the average grain size as measured by TEM observation (DTEM) is in the range from 5-30 nm, the x-ray crystal grain size derived by x-ray diffraction (DX) is no less than 4 nm, the particles of are dispersed from each other at a distance, and the dispersion on the composition of the individual particles is kept within a stipulated range.

    摘要翻译： 适用于磁记录的磁性合金颗粒的组合由含有T和M的式[T XSI M 1-X N]表示，其组成比为X 在式中，在0.3以上且0.7以下的范围内，其中，T是由Fe和Co组成的组中的一个或两个成员，M是由Pt和Pd组成的组中的一个或两个成员，以及金属元素 除T和M外，不超过30个。 （T + M）的％（包括0原子％），其余部分由从生产角度不可避免的杂质组成，其中：面心四方分数为10-100％，平均 通过TEM观察（D TEM）测量的晶粒尺寸在5-30nm的范围内，通过x射线衍射得到的x射线晶粒尺寸（D×X ）不小于4nm，颗粒彼此分开一段距离，单个颗粒的组成分散保持在规定范围内。

    Silver micropowder having excellent affinity for polar medium, and silver ink
    10.
    发明授权
    Silver micropowder having excellent affinity for polar medium, and silver ink 有权
    对极性介质具有极好的亲和性的银微粉和银墨

    公开(公告)号：US08486307B2

    公开(公告)日：2013-07-16

    申请号：US12811598

    申请日：2008-12-25

    申请人： Kimitaka Sato ,  Shinya Sasaki ,  Taro Nakanoya

    发明人： Kimitaka Sato ,  Shinya Sasaki ,  Taro Nakanoya

    IPC分类号： H01B1/22 ,  H01B1/02

    CPC分类号： B22F9/24 ,  B22F1/0018 ,  B22F1/0022 ,  B22F1/0044 ,  B22F1/0062 ,  B22F2998/00 ,  B22F2999/00 ,  B82Y30/00 ,  C09D11/52 ,  H01B1/22 ,  Y10T428/2991 ,  B22F1/0059 ,  B22F2301/255 ,  B22F2304/054

    摘要： Provided are silver nanoparticles having a good affinity (that is, dispersibility) for y-butyrolactone (C4H6O2), an organic solvent which has a relatively high boiling point though having a relatively small molecular weight, and has a low viscosity and a low surface tension and which has little irritating odor. The above problems are solved by providing a silver micropowder excellent in affinity for at least y-butyrolactone, which comprises silver particles processed to adsorb at least one of 1,4-dihydroxy-2-naphthoic acid (C11H8O4) and gallic acid (C7H6O5) on the surfaces thereof and having an X-ray crystal particle diameter DX of from 1 to 40 nm, preferably from 1 to 15 nm. The invention also provides a silver ink obtained by dispersing silver particles processed to adsorb an organic compound having a carboxyl group on the surfaces thereof and having an X-ray crystal particle diameter DX of from 1 to 40 nm, preferably from 1 to 15 nm (or having a mean particle diameter DTEM, as measured through TEM microscopy, of from 3 to 40 nm, preferably from 4 to 15 nm), in y-butyrolactone.

    摘要翻译： 提供了对于γ-丁内酯（C 4 H 6 O 2）具有良好的亲和性（即分散性）的银纳米颗粒，这种有机溶剂虽然具有相对较小的分子量，但具有较高的沸点，并且具有低粘度和低表面张力 并且几乎没有刺激性气味。 通过提供对至少γ-丁内酯的亲和性优异的银微粉来解决上述问题，所述银微粒包括被处理吸附1,4-二羟基-2-萘甲酸（C 11 H 8 O 4）和没食子酸（C 7 H 6 O 5）中的至少一种的银粒子， 其表面上的X射线晶体粒径DX为1〜40nm，优选为1〜15nm。 本发明还提供一种银粉，其通过将经加工的银颗粒分散在其表面上吸附具有羧基的有机化合物并且具有1至40nm，优选1至15nm的X射线晶体粒径DX（ 或具有3至40nm，优选4至15nm的平均粒径DTEM（通过TEM显微镜测量），在γ-丁内酯中。