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1. 发明授权

US07314531B2 R-T-B system rare earth permanent magnet 有权
标题翻译： R-T-B系稀土永磁铁
公开(公告)号：US07314531B2
公开(公告)日：2008-01-01
申请号：US10799153
申请日：2004-03-11
申请人： Chikara Ishizaka , Gouichi Nishizawa , Tetsuya Hidaka , Akira Fukuno , Yoshinori Fujikawa
发明人： Chikara Ishizaka , Gouichi Nishizawa , Tetsuya Hidaka , Akira Fukuno , Yoshinori Fujikawa
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。

2. 发明授权

US07311788B2 R-T-B system rare earth permanent magnet 有权
标题翻译： R-T-B系稀土永磁铁
公开(公告)号：US07311788B2
公开(公告)日：2007-12-25
申请号：US10675230
申请日：2003-09-29
申请人： Gouichi Nishizawa , Chikara Ishizaka , Tetsuya Hidaka , Akira Fukuno , Yoshinori Fujikawa
发明人： Gouichi Nishizawa , Chikara Ishizaka , Tetsuya Hidaka , Akira Fukuno , Yoshinori Fujikawa
IPC分类号： H01F1/057
CPC分类号： C22C28/00 , C22C1/0441 , C22C30/00 , C22C38/002 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/14 , C22C38/16 , H01F1/0557 , H01F1/0577 , H01F41/0253
摘要： A sintered body with a composition consisting of 25% to 35% by weight of R (wherein R represents one or more rare earth elements, provided that the rare earth elements include Y), 0.5% to 4.5% by weight of B, 0.02% to 0.6% by weight of Al and/or Cu, 0.03% to 0.25% by weight of Zr, 4% or less by weight (excluding 0) of Co, and the balance substantially being Fe. This sintered body has a coefficient of variation (CV value) showing the dispersion degree of Zr of 130 or less. In addition, this sintered body has a grain boundary phase comprising a region that is rich both in at least one element selected from a group consisting of Cu, Co and R, and in Zr. This sintered body enables to inhibit the grain growth, while keeping the decrease of magnetic properties to a minimum, and to improve the suitable sintering temperature range.
摘要翻译：具有25重量％至35重量％的R（其中R表示一种或多种稀土元素，条件是稀土元素包括Y），0.5重量％至4.5重量％的B组成的烧结体，0.02重量％至0.6重量％的Al和/或Cu，0.03〜0.25重量％的Zr，4重量％以下（不包括0）的Co，余量实质上为Fe。该烧结体具有显示Zr的分散度为130以下的变异系数（CV值）。此外，该烧结体具有包含富含选自Cu，Co和R中的至少一种元素的区域和在Zr中的区域的晶界相。该烧结体能够在保持磁特性降低至最小的同时抑制晶粒生长，并且可提高合适的烧结温度范围。

3. 发明授权

US07919007B2 Ferrite magnetic material 有权
标题翻译：铁氧体磁性材料
公开(公告)号：US07919007B2
公开(公告)日：2011-04-05
申请号：US11611180
申请日：2006-12-15
申请人： Yoshihiko Minachi , Noboru Ito , Yuuki Aburakawa , Yoshinori Fujikawa , Satoko Ueda
发明人： Yoshihiko Minachi , Noboru Ito , Yuuki Aburakawa , Yoshinori Fujikawa , Satoko Ueda
IPC分类号： C04B35/40 , C04B35/26 , H01F1/00
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。

4. 发明授权

US08981888B2 Magnetic body 有权
标题翻译：磁体
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。

5. 发明授权

US07744954B2 Method of producing a powder, powder, and multilayered ceramic capacitor using the same 失效
标题翻译：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。

6. 发明申请

US20090264276A1 Production method of dielectric particles 审中-公开
标题翻译：电介质颗粒的生产方法
公开(公告)号：US20090264276A1
公开(公告)日：2009-10-22
申请号：US12385607
申请日：2009-04-14
申请人： Tomohiro Yamashita , Tomoaki Nonaka , Shinsuke Hashimoto , Hiroshi Sasaki , Yoshinori Fujikawa
发明人： Tomohiro Yamashita , Tomoaki Nonaka , Shinsuke Hashimoto , Hiroshi Sasaki , Yoshinori Fujikawa
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℃

7. 发明申请

US20080044727A1 Process for production of active material and electrode, active material, and electrode 有权
标题翻译：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
申请人： Hisashi Suzuki , Masato Kurihara , Yoshitomo Tanaka , Hiroshi Chihara , Yoshinori Fujikawa
发明人： Hisashi Suzuki , Masato Kurihara , Yoshitomo Tanaka , Hiroshi Chihara , Yoshinori Fujikawa
IPC分类号： H01M4/48 , B32B15/04
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。

8. 发明授权

US06559084B1 Dielectric ceramic composition and electronic device 失效
标题翻译：介电陶瓷组合物和电子器件
公开(公告)号：US06559084B1
公开(公告)日：2003-05-06
申请号：US09618219
申请日：2000-07-18
申请人： Yoshinori Fujikawa , Yoshihiro Terada , Shigeki Sato
发明人： Yoshinori Fujikawa , Yoshihiro Terada , Shigeki Sato
IPC分类号： H01G412
CPC分类号： H01G4/1227 , C04B35/4682 , C04B35/803
摘要： A dielectric ceramic composition comprising a main component of BaTiO3, a first subcomponent including at least one compound selected from MgO, CaO, BaO, SrO and Cr2O3, a second subcomponent of (Ba, Ca)xSiO2+x (where, x=0.8 to 1.2), a third subcomponent including at least one compound selected from V2O5, MoO3, and WO3, and a fourth subcomponent including an oxide of R1 (where R1 is at least one element selected from Sc, Er, Tm, Yb, and Lu), a fifth subcomponent including an oxide of R2 (where R2 is at least one element selected from Y, Dy, Ho, Tb, Gb and Eu), wherein the ratios of the subcomponents to 100 moles of the main component of BaTiO3 are first subcomponent of 0.1 to 3 moles, second subcomponent of 2 to 10 moles, third subcomponent of 0.01 to 0.5 mole, fourth subcomponent of 0.5 to 7 moles, and fifth subcomponent of 2 to 9 moles (where the number of moles of the fourth and fifth subcomponents are respectively the ratio of R1 and R2 alone).
摘要翻译：一种包含BaTiO 3的主要组分的介电陶瓷组合物，包含至少一种选自MgO，CaO，BaO，SrO和Cr 2 O 3的化合物的第一副成分，（Ba，Ca）xSiO 2 + x的第二副成分（其中x = 0.8至 1.2），包含至少一种选自V 2 O 5，MoO 3和WO 3的化合物的第三副成分和包含R 1的氧化物（其中R 1为选自Sc，Er，Tm，Yb和Lu中的至少一种元素）的第四副成分，，其中包含R2的氧化物（其中R2是选自Y，Dy，Ho，Tb，Gb和Eu中的至少一种元素）的第五副成分，其中副成分与BaTiO 3的主成分100摩尔的比率是第一次要成分为0.1〜3摩尔，第2副成分为2〜10摩尔，第3副成分为0.01〜0.5摩尔，第4副成分为0.5〜7摩尔，第5副成分为2〜9摩尔（第4副产物和第5副成分的摩尔数分别是R1和R2的比率）。

9. 发明授权

US11361888B2 Samarium-iron-nitrogen magnet powder and method for manufacturing same 有权
公开(公告)号：US11361888B2
公开(公告)日：2022-06-14
申请号：US16615511
申请日：2018-05-29
申请人： Shusuke Okada , Kenta Takagi , Yasushi Enokido , Yoshinori Fujikawa , Ryuji Hashimoto
发明人： Shusuke Okada , Kenta Takagi , Yasushi Enokido , Yoshinori Fujikawa , Ryuji Hashimoto
IPC分类号： H01F1/059 , B22F9/20 , B22F1/05 , B22F1/145
摘要： One embodiment of the present invention is that in samarium-iron-nitrogen magnet powder, a non-magnetic phase is formed on a surface of the samarium-iron-nitrogen magnet phase, and an arithmetic mean roughness Ra of the surface is 3.5 nm or less.

10. 发明授权

US08715854B2 Active material with a surface-modified layer covering a metal oxide core and an electrode and battery comprising the same 有权
标题翻译：具有覆盖金属氧化物芯的表面改性层的活性材料和包含该表面改性层的电极和电池
公开(公告)号：US08715854B2
公开(公告)日：2014-05-06
申请号：US11889832
申请日：2007-08-16
申请人： Hisashi Suzuki , Masato Kurihara , Yoshitomo Tanaka , Hiroshi Chihara , Yoshinori Fujikawa
发明人： Hisashi Suzuki , Masato Kurihara , Yoshitomo Tanaka , Hiroshi Chihara , Yoshinori Fujikawa
IPC分类号： H01M4/1315 , H01M4/13915
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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