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公开(公告)号：US07919007B2
公开(公告)日：2011-04-05
申请号：US11611180
申请日：2006-12-15
CPC分类号： C04B35/2633 , C04B35/2641 , C04B35/6262 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3227 , C04B2235/3277 , C04B2235/3418 , C04B2235/5409 , C04B2235/5445 , C04B2235/605 , C04B2235/656 , C04B2235/6562
摘要： The present invention provides a ferrite magnetic material capable of attaining such magnetic properties that Br+(⅓)HcJ is 6200 or more even by sintering at a temperature of 1150° C. or lower. The ferrite magnetic material includes as a main phase thereof a ferrite phase having a hexagonal structure, the main phase being represented by the following composition formula (1): LaxCamα1−x−m(Fe12−yCoy)z with α representing one or two of Ba and Sr; wherein the constituent ratios of the metal elements constituting the main phase satisfy the following conditions: x and m are the values in a region bounded by the points, A: (0.53, 0.27), B: (0.64, 0.27), C: (0.64, 0.35), D: (0.53, 0.45), E: (0.47, 0.45) and F: (0.47, 0.32) in the (x, m) coordinates shown in FIG. 2; 1.3≦x/yz≦1.8; and 9.5≦12z≦11.0.
摘要翻译： 本发明提供一种铁氧体磁性材料，即使在1150℃以下的温度下烧结也能够得到Br +（1/3）HcJ为6200以上的磁特性。 铁氧体磁性材料主要包括具有六方结构的铁素体相，主相由以下组成式（1）表示：LaxCamα1-x-m（Fe12-yCoy）z，其中α表示一个或两个 Ba和Sr; 其中构成主相的金属元素的组成比满足以下条件：x和m是由点限定的区域中的值，A：（0.53,0.27），B：（0.64,0 .27），C：（ 0.64,0.35），D：（0.53,0.45），E：（0.47,0.45）和F：（0.47,0.32）。 2; 1.3＆nlE; x / yz＆nlE; 1.8; 和9.5＆nlE; 12z＆nlE; 11.0。
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公开(公告)号：US20070138432A1
公开(公告)日：2007-06-21
申请号：US11611180
申请日：2006-12-15
CPC分类号： C04B35/2633 , C04B35/2641 , C04B35/6262 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3227 , C04B2235/3277 , C04B2235/3418 , C04B2235/5409 , C04B2235/5445 , C04B2235/605 , C04B2235/656 , C04B2235/6562
摘要： The present invention provides a ferrite magnetic material capable of attaining such magnetic properties that Br+(⅓)HcJ is 6200 or more even by sintering at a temperature of 1150° C. or lower. The ferrite magnetic material includes as a main phase thereof a ferrite phase having a hexagonal structure, the main phase being represented by the following composition formula (1): LaxCamα1−x−m(Fe12−yCoy)z with α representing one or two of Ba and Sr; wherein the constituent ratios of the metal elements constituting the main phase satisfy the following conditions: x and m are the values in a region bounded by the points, A: (0.53, 0.27), B: (0.64, 0.27), C: (0.64, 0.35), D: (0.53, 0.45), E: (0.47, 0.45) and F: (0.47, 0.32) in the (x, m) coordinates shown in FIG. 2; 1.3≦x/yz≦1.8; and 9.5≦12z≦11.0.
摘要翻译： 本发明提供一种铁氧体磁性材料，即使在1150℃以下的温度下烧结也能够获得Br +（1/3）HcJ为6200以上的磁特性。 铁氧体磁性材料主要包括具有六方结构的铁素体相，其主相由以下组成式（1）表示：La x Si x Ca α1-x M（Fe 12-y Co y z）Z a，其中α代表一个或两个Ba和 锶 其中构成主相的金属元素的组成比满足以下条件：x和m是由点限定的区域中的值，A：（0.53,0.27），B：（0.64,0 .27），C：（ 0.64,0.35），D：（0.53,0.45），E：（0.47,0.45）和F：（0.47,0.32）。 2; 1.3 <= x / yz <= 1.8; 和9.5 <= 12z <= 11.0。
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3.发明授权Method of producing a powder, powder, and multilayered ceramic capacitor using the same 失效使用该粉末，粉末和多层陶瓷电容器的方法公开(公告)号：US07744954B2
公开(公告)日：2010-06-29
申请号：US11384508
申请日：2006-03-21
申请人： Yoshinori Fujikawa , Satoko Ueda , Kouji Tokita
发明人： Yoshinori Fujikawa , Satoko Ueda , Kouji Tokita
IPC分类号： B05D7/00
CPC分类号： C04B35/4682 , C04B35/47 , C04B35/62821 , C04B35/62886 , C04B38/009 , C04B2111/00405 , C04B2111/00844 , C04B2235/3213 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3232 , C04B2235/3236 , C04B2235/96 , H01G4/1209 , H01G4/1218 , H01G4/30 , Y10T428/2991 , C04B35/468 , C04B41/5041 , C04B35/48 , C04B35/495
摘要： A core/shell structured powder different in composition between the inside the particle and the surface thereof before sintering, so that it is possible to sinter the powder at lower temperature and give a core/shell structured powder having a shell portion uniform in thickness after sintering; a multilayered ceramic capacitor having a longer lifetime, by preparing the multilayered ceramic capacitor by using a powder having a core/shell structure different in composition between the inside the particle and the surface thereof before sintering; and a method of producing a powder by synthesizing particles in the liquid containing a raw material, wherein particles different in composition at least between the inside the particle and the surface thereof are obtained by adding a composition to be incorporated as a component of the particles to the liquid during the synthetic process so that the composition of the liquid changes continuously or intermittently.
摘要翻译： 在烧结之前，颗粒内部和表面之间的组成不同的芯/壳结构粉末，使得可以在较低温度下烧结粉末，并得到烧结后具有均匀厚度的壳体部分的芯/壳结构粉末 ; 通过在烧结之前通过使用具有与颗粒内部和其表面之间的组成不同的核/壳结构的粉末来制备多层陶瓷电容器，具有更长寿命的多层陶瓷电容器; 以及通过在含有原料的液体中合成颗粒来制造粉末的方法，其中至少在颗粒内部和其表面之间至少在颗粒内部和/或表面之间的组成不同的颗粒通过将作为颗粒的组分掺入的组合物添加到 在合成过程中的液体，使得液体的组成连续或间歇地变化。
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公开(公告)号：US07528088B2
公开(公告)日：2009-05-05
申请号：US11390113
申请日：2006-03-28
申请人： Yuji Umeda , Satoko Ueda , Yoshinori Fujikawa , Akira Sato
发明人： Yuji Umeda , Satoko Ueda , Yoshinori Fujikawa , Akira Sato
IPC分类号： C04B35/468 , H01G4/06
CPC分类号： H01G4/1227 , B82Y30/00 , C04B35/4682 , C04B35/6262 , C04B35/6264 , C04B35/64 , C04B2235/3203 , C04B2235/3206 , C04B2235/3208 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3239 , C04B2235/3241 , C04B2235/3251 , C04B2235/3256 , C04B2235/3262 , C04B2235/3409 , C04B2235/3418 , C04B2235/3436 , C04B2235/3454 , C04B2235/36 , C04B2235/5409 , C04B2235/5445 , C04B2235/5454 , C04B2235/6025 , C04B2235/656 , C04B2235/6582 , C04B2235/6588 , C04B2235/663 , C04B2235/785 , C04B2235/79 , C04B2235/85 , H01G4/30
摘要： A multilayer ceramic capacitor 1 having dielectric layers 2 having barium titanate or barium calcium titanate as a main ingredient. When the dielectric layers are barium titanate, the ratio of the grains having a thickness of the crystal grain boundaries 22 present between adjoining dielectric grains 20 is 30% to 95% of the plurality of dielectric grains 20 forming the dielectric layers 2. When the dielectric layers 2 are barium calcium titanate, the ratio of the grains having a thickness of the crystal grain boundaries 22 present between adjoining dielectric grains 20 is 20% to 70% of the plurality of dielectric grains 20 forming the dielectric layers 2.
摘要翻译： 具有以钛酸钡或钛酸钡为主要成分的电介质层2的多层陶瓷电容器1。 当电介质层是钛酸钡时，存在于相邻电介质晶粒20之间的具有晶界22的厚度的晶粒的比例为形成电介质层2的多个电介质晶粒20的30％至95％。当电介质 层2是钛酸钡，存在于相邻的电介质晶粒20之间的具有晶界22的厚度的晶粒的比例为形成电介质层2的多个电介质晶粒20的20％〜70％。
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5.发明申请Method of producing a powder, powder, and multilayered ceramic capacitor using the same 失效使用该粉末，粉末和多层陶瓷电容器的方法公开(公告)号：US20060216512A1
公开(公告)日：2006-09-28
申请号：US11384508
申请日：2006-03-21
申请人： Yoshinori Fujikawa , Satoko Ueda , Kouji Tokita
发明人： Yoshinori Fujikawa , Satoko Ueda , Kouji Tokita
CPC分类号： C04B35/4682 , C04B35/47 , C04B35/62821 , C04B35/62886 , C04B38/009 , C04B2111/00405 , C04B2111/00844 , C04B2235/3213 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3232 , C04B2235/3236 , C04B2235/96 , H01G4/1209 , H01G4/1218 , H01G4/30 , Y10T428/2991 , C04B35/468 , C04B41/5041 , C04B35/48 , C04B35/495
摘要： An object of the present invention is to make a core/shell structured powder different in composition between the inside the particle and the surface thereof before sintering, so that it is possible to sinter the powder at lower temperature and give a core/shell structured powder having a shell portion uniform in thickness after sintering. Another object of the present invention is to provide a multilayered ceramic capacitor having a longer lifetime, by preparing the multilayered ceramic capacitor by using a powder having a core/shell structure different in composition between the inside the particle and the surface thereof before sintering. The method of producing a powder according to the invention is a method of producing a powder by synthesizing particles in the liquid containing a raw material, wherein particles different in composition at least between the inside the particle and the surface thereof are obtained by adding a composition to be incorporated as a component of the particles to the liquid during the synthetic process so that the composition of the liquid changes continuously or intermittently.
摘要翻译： 本发明的目的是在烧结之前使颗粒内部和表面之间的组成不同的芯/壳结构粉末，使得可以在较低温度下烧结粉末并得到芯/壳结构的粉末 烧结后的壳体厚度均匀。 本发明的另一个目的是提供一种具有更长使用寿命的多层陶瓷电容器，通过在烧结之前通过使用在颗粒内部和其表面之间具有不同组成的芯/壳结构的粉末来制备多层陶瓷电容器。 根据本发明的制造粉末的方法是通过在含有原料的液体中合成颗粒来制造粉末的方法，其中至少在颗粒内部和其表面之间的组成至少不同的颗粒通过添加组合物 在合成过程中作为颗粒的组分掺入液体中，使得液体的组成连续地或间歇地变化。
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公开(公告)号：US20060251927A1
公开(公告)日：2006-11-09
申请号：US11390113
申请日：2006-03-28
申请人： Yuji Umeda , Satoko Ueda , Yoshinori Fujikawa , Akira Sato
发明人： Yuji Umeda , Satoko Ueda , Yoshinori Fujikawa , Akira Sato
CPC分类号： H01G4/1227 , B82Y30/00 , C04B35/4682 , C04B35/6262 , C04B35/6264 , C04B35/64 , C04B2235/3203 , C04B2235/3206 , C04B2235/3208 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3239 , C04B2235/3241 , C04B2235/3251 , C04B2235/3256 , C04B2235/3262 , C04B2235/3409 , C04B2235/3418 , C04B2235/3436 , C04B2235/3454 , C04B2235/36 , C04B2235/5409 , C04B2235/5445 , C04B2235/5454 , C04B2235/6025 , C04B2235/656 , C04B2235/6582 , C04B2235/6588 , C04B2235/663 , C04B2235/785 , C04B2235/79 , C04B2235/85 , H01G4/30
摘要： A multilayer ceramic capacitor 1 having dielectric layers 2 having barium titanate or barium calcium titanate as a main ingredient. When the dielectric layers are barium titanate, the ratio of the grains having a thickness of the crystal grain boundaries 22 present between adjoining dielectric grains 20 is 30% to 95% of the plurality of dielectric grains 20 forming the dielectric layers 2. When the dielectric layers 2 are barium calcium titanate, the ratio of the grains having a thickness of the crystal grain boundaries 22 present between adjoining dielectric grains 20 is 20% to 70% of the plurality of dielectric grains 20 forming the dielectric layers 2.
摘要翻译： 具有以钛酸钡或钛酸钡为主要成分的电介质层2的多层陶瓷电容器1。 当电介质层是钛酸钡时，存在于相邻的电介质晶粒20之间的具有晶粒边界22的厚度的晶粒的比例为形成电介质层2的多个电介质晶粒20的30％至95％。 当电介质层2是钛酸钡时，存在于相邻电介质晶粒20之间的具有晶界22的厚度的晶粒的比例是形成电介质层2的多个电介质晶粒20的20％至70％。
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公开(公告)号：US07314531B2
公开(公告)日：2008-01-01
申请号：US10799153
申请日：2004-03-11
IPC分类号： H01F1/057
CPC分类号： H01F1/0577
摘要： A sintered body comprising a main phase consisting of an R2T14B phase (wherein R represents one or more rare earth elements (providing that the rare earth elements include Y), and T represents one or more transition metal elements essentially containing Fe, or Fe and Co), and a grain boundary phase containing a higher amount of R than the main phase, wherein a platy or acicular product exists. This sintered body enables to inhibit the grain growth, while keeping a decrease in magnetic properties to a minimum, and to improve a suitable sintering temperature range.
摘要翻译： 一种烧结体，其包含由R 2 2 T 14 B相构成的主相（其中R表示一种或多种稀土元素（使得稀土元素包括Y） ，T表示一种或多种基本上含有Fe或Fe和Co的过渡金属元素，以及含有比主相高的R的晶界相，其中存在片状或针状产物。 该烧结体能够抑制晶粒生长，同时将磁特性降低至最小，并提高合适的烧结温度范围。
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公开(公告)号：US08981888B2
公开(公告)日：2015-03-17
申请号：US13997788
申请日：2011-12-19
申请人： Kenichi Suzuki , Yoshinori Fujikawa
发明人： Kenichi Suzuki , Yoshinori Fujikawa
IPC分类号： H01F7/02 , B22F3/10 , B22F9/02 , C22C33/02 , C22C38/00 , C22C38/06 , C22C38/10 , C22C38/12 , C22C38/16 , H01F1/057 , H01F1/03
CPC分类号： H01F7/0226 , B22F3/10 , B22F9/023 , C22C1/02 , C22C33/0278 , C22C38/002 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/12 , C22C38/16 , H01F1/0575
摘要： A magnetic body which can reversibly change its magnetic force with a small external magnetic field while having a high residual magnetic flux density is provided. The magnetic body of the present invention has a residual magnetic flux density Br of at least 11 kG and a coercive force HcJ of 5 kOe or less, while an external magnetic field required for the residual magnetic flux density Br to become 0 is 1.10 HcJ or less.
摘要翻译： 提供了一种能够以较小的外部磁场可逆地改变其磁力同时具有高的剩余磁通密度的磁体。 本发明的磁体具有至少11kG的残余磁通密度Br和5kOe以下的矫顽力HcJ，而剩余磁通密度Br为零所需的外部磁场为1.10HcJ或 减。
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公开(公告)号：US20090264276A1
公开(公告)日：2009-10-22
申请号：US12385607
申请日：2009-04-14
IPC分类号： C04B35/468
CPC分类号： C04B35/468 , B82Y30/00 , C01G23/006 , C01P2004/03 , C01P2004/04 , C01P2004/54 , C01P2004/62 , C01P2004/64 , C01P2006/12 , C01P2006/40 , C04B35/62675 , C04B35/6268 , C04B35/62821 , C04B35/62897 , C04B2235/3215 , C04B2235/3232 , C04B2235/442 , C04B2235/5409 , C04B2235/5445 , C04B2235/5454 , C04B2235/5481 , C04B2235/549 , C04B2235/72 , C04B2235/724 , C04B2235/761 , C04B2235/765 , C04B2235/79
摘要： A method of producing fine and uniform barium titanate particles having high crystallinity by performing a heat treatment on titanium dioxide and barium carbonate having a specific surface area of at least 20 m2/g and low rutile ratio; comprising the steps of preparing mixed powder by mixing titanium dioxide particles having a rutile ratio of 30% or lower and a specific surface area of 20 m2/g or more and barium carbonate particles, a first heat treatment step for performing a heat treatment on the mixed powder to generate a barium titanate phase having an average thickness of at least 3 nm continuously on surfaces of titanium dioxide particles by an amount of 15 wt % or more, and a second heat treatment step for performing a heat treatment at 800° C. to 1000° C.
摘要翻译： 通过对比表面积为20m 2 / g以上的二氧化钛和碳酸钡进行热处理，生成具有高结晶度的精细且均匀的钛酸钡颗粒的方法，并且金红石比低; 包括通过将金红石比为30％以下，比表面积为20m 2 / g以上的二氧化钛粒子和碳酸钡颗粒混合来制备混合粉末的步骤，对所述碳酸钡颗粒进行热处理的第一热处理步骤 混合粉末，以在二氧化钛粒子的表面上连续地形成平均厚度为3nm以上的钛酸钡相，其量为15重量％以上，以及在800℃下进行热处理的第二热处理工序。 至1000℃
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10.发明申请Process for production of active material and electrode, active material, and electrode 有权生产活性材料和电极，活性材料和电极的方法公开(公告)号：US20080044727A1
公开(公告)日：2008-02-21
申请号：US11889832
申请日：2007-08-16
CPC分类号： H01M4/485 , H01M4/366 , H01M4/505 , H01M4/525 , H01M4/582 , H01M10/0525 , H01M2004/021 , Y10T29/49115 , Y10T428/265
摘要： An active material with a sufficient cycle characteristic and a process for its production are provided. According to the process for production of an active material of this invention, an aqueous solution containing a metal fluorocomplex is contacted with a metal oxide to form a surface-modified layer on the surface of the metal oxide. The active material of the invention comprises a core section made of a metal oxide and a surface-modified layer covering the core section, wherein the surface-modified layer is an oxide containing a metal present in the core section and a metal not present in the core section.
摘要翻译： 提供具有足够循环特性的活性材料及其生产方法。 根据本发明的活性物质的制造方法，将含有金属氟化合物的水溶液与金属氧化物接触，在金属氧化物的表面形成表面改性层。 本发明的活性物质包括由金属氧化物构成的核心部分和覆盖芯部的表面改性层，其中表面改性层是含有存在于芯部中的金属和不存在于芯部中的金属的氧化物 核心部分。
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