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    Piezoelectric/electrostrictive film element having wavy grain boundaries
    5.
    发明授权
    Piezoelectric/electrostrictive film element having wavy grain boundaries 有权
    具有波纹晶界的压电/电致伸缩膜元件

    公开(公告)号：US08084924B2

    公开(公告)日：2011-12-27

    申请号：US12397476

    申请日：2009-03-04

    申请人： Yukinobu Yura ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki

    发明人： Yukinobu Yura ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki

    IPC分类号： H01L41/187

    CPC分类号： H01L41/1876 ,  H01L41/0973 ,  H01L41/43

    摘要： An actuator includes a first electrode disposed on the top surface of a ceramic substrate (for example, zirconium oxide), a piezoelectric/electrostrictive substance disposed on the first electrode, and a second electrode disposed on the piezoelectric/electrostrictive substance, wherein the input of an electric power alters the volume of the piezoelectric/electrostrictive substance. The piezoelectric/electrostrictive substance contains a plurality of crystal grains that have a wavy structure composed of wavy grain boundaries including concave portions and convex portions. The crystal grains contain ABO3 as the main component. The A site is Pb, and the B site contains such an amount of M that M becomes excessive after the piezoelectric/electrostrictive substance is formed (wherein M is at least one element selected from Mg, Ni, and Zn). The crystal grains of the piezoelectric/electrostrictive substance are oriented in the electric field direction, independently of the orientation of the substrate.

    摘要翻译： 致动器包括设置在陶瓷基板（例如氧化锆）的顶表面上的第一电极，设置在第一电极上的压电/电致伸缩物质和设置在压电/电致伸缩物质上的第二电极， 电力改变压电/电致伸缩物质的体积。 压电/电致伸缩物质包含多个具有包括凹部和凸部的波浪形晶界的波浪结构的晶粒。 晶粒含有ABO3作为主要成分。 A位置为Pb，B位置含有形成压电/电致伸缩物质后M变多的M（其中M为选自Mg，Ni和Zn中的至少一种元素）。 压电/电致伸缩物质的晶粒在电场方向上取向，与基板的取向无关。

    Plate-like polycrystalline particle
    6.
    发明授权
    Plate-like polycrystalline particle 有权
    板状多晶粒子

    公开(公告)号：US08367205B2

    公开(公告)日：2013-02-05

    申请号：US12395749

    申请日：2009-03-02

    申请人： Yukinobu Yura ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki

    发明人： Yukinobu Yura ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki

    IPC分类号： B32B15/02 ,  C04B33/00 ,  C04B35/00

    CPC分类号： C04B35/491 ,  C01G23/003 ,  C01G25/02 ,  C01G33/006 ,  C01P2002/34 ,  C01P2002/50 ,  C01P2004/20 ,  C01P2004/62 ,  C04B35/493 ,  C04B35/6262 ,  C04B2235/3206 ,  C04B2235/3251 ,  C04B2235/3279 ,  C04B2235/5292 ,  C04B2235/5445 ,  C04B2235/6025 ,  C04B2235/612 ,  C04B2235/6587 ,  C04B2235/787 ,  C04B2235/85 ,  C04B2235/9623 ,  Y10T428/24628 ,  Y10T428/2982

    摘要： A plate-like polycrystalline particle is produced by forming inorganic particles into a freestanding shaped body, firing the shaped body, and crushing and classifying the fired shaped body. The inorganic particles contain as the main component an oxide that has a general formula of ABO3 and that satisfies a×Pb(M′1/3,Nb2/3)O3+b×PbTiO3+c×PbZrO3+z×M″O (wherein a+b+c=1, and M′ denotes at least one element selected from Mg, Ni and Zn, and M″ denotes at least one element selected from Mg, Ni and Zn), wherein z is in the range of 0.002≦z≦0.42. The oxide contains a predetermined excessive amount of M″O such that the plate-like polycrystalline particle contains an excessive amount of M″O. The plate-like polycrystalline particle contains a plurality of crystal grains that have a wavy structure composed of wavy grain boundaries. The plate-like polycrystalline particle is easily crushed at the grain boundaries and has a high degree of orientation.

    摘要翻译： 通过将无机粒子形成为独立成形体，焙烧成形体，并对烧成的成形体进行粉碎分级，制造板状多晶粒子。 无机粒子含有具有通式ABO 3且满足×Pb（M'1 / 3，Nb2 / 3）O3 + b×PbTiO3 + c×PbZrO3 + z×M“O（的氧化物）的主要成分 其中a + b + c = 1，M'表示选自Mg，Ni和Zn中的至少一种元素，M“表示选自Mg，Ni和Zn中的至少一种元素），其中z在0.002 ＆nlE; z＆nlE; 0.42。 氧化物含有预定量的M“O，使得板状多晶颗粒含有过量的M”O。 板状多晶粒子包含多个由波浪状晶界构成的波状结构的晶粒。 板状多晶粒子容易在晶界被粉碎并且具有高度的取向。

    POSITIVE ELECTRODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY
    7.
    发明申请
    POSITIVE ELECTRODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY 审中-公开
    正极电极活性材料和锂二次电池

    公开(公告)号：US20100330429A1

    公开(公告)日：2010-12-30

    申请号：US12819465

    申请日：2010-06-21

    申请人： Yukinobu YURA ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki ,  Kazuyuki Kaigawa

    发明人： Yukinobu YURA ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki ,  Kazuyuki Kaigawa

    IPC分类号： H01M4/50 ,  H01M4/90

    CPC分类号： H01M10/052 ,  B82Y30/00 ,  C01G45/1221 ,  C01G45/1242 ,  C01P2002/32 ,  C01P2002/72 ,  C01P2004/64 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/40 ,  C01P2006/80 ,  H01M4/131 ,  H01M4/505 ,  H01M4/62 ,  H01M10/4235 ,  H01M2004/021 ,  Y10T428/2982

    摘要： A positive electrode active material having an average from 1 μm or lager to smaller than 5 μm and containing a large number of crystal grains being composed of lithium manganate of spinel structure containing lithium and manganese as constituent elements, whose crystallite size is 500 to 1,500 nm in powder X-ray diffraction pattern, and whose value of a lattice strain (η) of 0.05×10−3 to 0.9×10−3 in powder X-ray diffraction pattern, and whose D50/DBET ratio is 1 to 4 wherein the D50 (μm) is the median diameter of the positive electrode active material and the DBET (μm) is calculated from the BET specific surface area by using the following general formula (1). DBET=6/(d×S)  (1) [Wherein d is the true density (g/cm3) of the positive electrode active material powder and S is BET specific surface area (m2/g) in the general formula (1).]

    摘要翻译： 平均1μm以上且小于5μm的正极活性物质，其含有大量的结晶粒子，所述晶体由以锂和锰为构成元素的尖晶石结构的锰酸锂构成，微晶尺寸为500〜1500nm 在粉末X射线衍射图中，其粉末X射线衍射图中的晶格应变值（＆egr）为0.05×10 -3〜0.9×10 -3，D50 / DBET比为1〜4，其中 D50（μm）是正极活性物质的中值粒径，使用以下通式（1）从BET比表面积算出DBET（μm）。 DBET = 6 /（d×S）（1）其中，d为正极活性物质粉末的真密度（g / cm 3），S为通式（1）中的BET比表面积（m2 / g） 。]

    PLATE-LIKE POLYCRYSTALLINE PARTICLE
    8.
    发明申请
    PLATE-LIKE POLYCRYSTALLINE PARTICLE 有权
    板状多晶粒子

    公开(公告)号：US20090239041A1

    公开(公告)日：2009-09-24

    申请号：US12395749

    申请日：2009-03-02

    申请人： Yukinobu Yura ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki

    发明人： Yukinobu Yura ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki

    IPC分类号： B32B5/00

    CPC分类号： C04B35/491 ,  C01G23/003 ,  C01G25/02 ,  C01G33/006 ,  C01P2002/34 ,  C01P2002/50 ,  C01P2004/20 ,  C01P2004/62 ,  C04B35/493 ,  C04B35/6262 ,  C04B2235/3206 ,  C04B2235/3251 ,  C04B2235/3279 ,  C04B2235/5292 ,  C04B2235/5445 ,  C04B2235/6025 ,  C04B2235/612 ,  C04B2235/6587 ,  C04B2235/787 ,  C04B2235/85 ,  C04B2235/9623 ,  Y10T428/24628 ,  Y10T428/2982

    摘要： A plate-like polycrystalline particle is produced by forming inorganic particles into a freestanding shaped body, firing the shaped body, and crushing and classifying the fired shaped body. The inorganic particles contain as the main component an oxide that has a general formula of ABO3 and that satisfies a×Pb(M1/3,Nb2/3)O3+b×PbTiO3+c×PbZrO3+z×MO (wherein a+b+c=1, and M denotes at least one element selected from Mg, Ni, and Zn), wherein z is in the range of 0.002≦z≦0.42. The oxide contains a predetermined excessive amount of MO (M denotes at least one element selected from Mg, Ni, and Zn) such that the plate-like polycrystalline particle contains an excessive amount of MO. The plate-like polycrystalline particle contains a plurality of crystal grains that have a wavy structure composed of wavy grain boundaries. The plate-like polycrystalline particle is easily crushed at the grain boundaries and has a high degree of orientation.

    摘要翻译： 通过将无机粒子形成为独立成形体，焙烧成形体，并对烧成的成形体进行粉碎分级，制造板状多晶粒子。 无机颗粒含有具有通式ABO 3并且满足axPb（M1 / 3，Nb2 / 3）O3 + bxPbTiO3 + cxPbZrO3 + zxMO（其中a + b + c = 1，M表示 至少一种选自Mg，Ni和Zn的元素），其中z在0.002≤z≤0.42的范围内。 氧化物含有预定过量的MO（M表示选自Mg，Ni和Zn中的至少一种元素），使得板状多晶颗粒含有过量的MO。 板状多晶粒子包含多个具有由波浪状晶界构成的波状结构的晶粒。 板状多晶粒子容易在晶界被粉碎并且具有高度的取向。

    PIEZOELECTRIC/ELECTROSTRICTIVE FILM ELEMENT
    9.
    发明申请
    PIEZOELECTRIC/ELECTROSTRICTIVE FILM ELEMENT 有权
    压电/电镀膜元件

    公开(公告)号：US20090236946A1

    公开(公告)日：2009-09-24

    申请号：US12397476

    申请日：2009-03-04

    申请人： Yukinobu Yura ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki

    发明人： Yukinobu Yura ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki

    IPC分类号： H01L41/083

    CPC分类号： H01L41/1876 ,  H01L41/0973 ,  H01L41/43

    摘要： An actuator includes a first electrode disposed on the top surface of a ceramic substrate (for example, zirconium oxide), a piezoelectric/electrostrictive substance disposed on the first electrode, and a second electrode disposed on the piezoelectric/electrostrictive substance, wherein the input of an electric power alters the volume of the piezoelectric/electrostrictive substance. The piezoelectric/electrostrictive substance contains a plurality of crystal grains that have a wavy structure composed of wavy grain boundaries including concave portions and convex portions. The crystal grains contain ABO3 as the main component. The A site is Pb, and the B site contains such an amount of M that M becomes excessive after the piezoelectric/electrostrictive substance is formed (wherein M is at least one element selected from Mg, Ni, and Zn). The crystal grains of the piezoelectric/electrostrictive substance are oriented in the electric field direction, independently of the orientation of the substrate.

    摘要翻译： 致动器包括设置在陶瓷基板（例如氧化锆）的顶表面上的第一电极，设置在第一电极上的压电/电致伸缩物质和设置在压电/电致伸缩物质上的第二电极， 电力改变压电/电致伸缩物质的体积。 压电/电致伸缩物质包含多个具有包括凹部和凸部的波浪形晶界的波浪结构的晶粒。 晶粒含有ABO3作为主要成分。 A位置为Pb，B位置含有形成压电/电致伸缩物质后M变多的M（其中M为选自Mg，Ni和Zn中的至少一种元素）。 压电/电致伸缩物质的晶粒在电场方向上取向，与基板的取向无关。

    CRYSTALLOGRAPHICALLY-ORIENTED CERAMIC
    10.
    发明申请
    CRYSTALLOGRAPHICALLY-ORIENTED CERAMIC 有权
    以晶体为主的陶瓷

    公开(公告)号：US20090170686A1

    公开(公告)日：2009-07-02

    申请号：US12341045

    申请日：2008-12-22

    申请人： Yukinobu YURA ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki

    发明人： Yukinobu YURA ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki

    IPC分类号： C04B35/04 ,  C04B35/453 ,  C04B35/46 ,  C04B35/48 ,  C04B35/495 ,  C04B35/01

    CPC分类号： C04B35/493 ,  C01G25/006 ,  C01P2002/52 ,  C01P2004/03 ,  C04B35/6262 ,  C04B2235/3206 ,  C04B2235/3255 ,  C04B2235/3279 ,  C04B2235/3296 ,  C04B2235/365 ,  C04B2235/5292 ,  C04B2235/5296 ,  C04B2235/6025 ,  C04B2235/768 ,  C04B2235/787 ,  C04B2235/9623 ,  H01L41/1876 ,  H01L41/43

    摘要： A crystallographically-oriented ceramic containing Pb and in which piezoelectric/electrostrictive properties can be enhanced. Using a raw material having Pb(Zr1-xTiX)O3 as a main component, a ceramic sheet was formed with a thickness of 15 μm or less. In this material, grains were allowed to grow into an anisotropic shape, and crystal grains with specific crystal planes being aligned were produced. A non-oriented raw material having Pb(Zr1-xTiX)O3 as a main component and the crystal grains were mixed, and shaping was performed so that crystal grains were oriented in a predetermined direction. The shaped body was fired. In the resulting ceramic, the degree of orientation was high at 50% or more. It is possible to enhance the degree of orientation using, as crystal nuclei, a ceramic sheet which can have the same composition as that of the crystallographically-oriented ceramic. Therefore, production can be performed without adding an unnecessary element, for example, for orienting crystals.

    摘要翻译： 含有Pb的结晶取向陶瓷可以增强压电/电致伸缩性能。 使用具有Pb（Zr1-xTiX）O3的原料作为主要成分，形成厚度为15μm以下的陶瓷片。 在该材料中，使晶粒生长成各向异性的形状，制作具有特定晶面的晶粒取向。 将具有Pb（Zr1-xTiX）O3作为主要成分的非取向原料和晶粒混合，进行成形，使晶粒沿预定方向取向。 成形的身体被烧了。 在得到的陶瓷中，取向度高达50％以上。 作为晶核，可以提高可以具有与结晶取向陶瓷相同组成的陶瓷片的取向度。 因此，可以在不添加不需要的元素的情况下进行制造，例如用于取向晶体。