公开(公告)号：US07622012B2

公开(公告)日：2009-11-24

申请号：US11815685

申请日：2006-02-09

申请人： Gakuji Uozumi ,  Ryoji Nakayama ,  Yasushi Nayuki

发明人： Gakuji Uozumi ,  Ryoji Nakayama ,  Yasushi Nayuki

IPC分类号： H01F1/147

CPC分类号： H01F1/1475 ,  B22F1/0055 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/0433 ,  C22C2202/02 ,  Y10T428/12181 ,  B22F9/082 ,  B22F1/0085 ,  B22F1/02 ,  B22F1/0059 ,  B22F3/18 ,  B22F2201/03

摘要： A flat soft magnetic metal powder is provided that includes: Ni in the range of 60 to 90 mass %, one or more kinds of Nb, V, and Ta in the range of 0.05 to 20 mass % in total (0.05 to 19.95 mass % when Mo is added thereto), Mo in the range of 0.05 to 10 mass % if necessary, one or two kinds of Al and Mn in the range of 0.01 to 1 mass % in total if necessary, and the balance including Fe; an average grain size of 30 to 150 μm and an aspect ratio (average grain size/average thickness) of 5 to 500; and a flat face. Here, with a peak intensity of a face index (220) in an X-ray diffraction pattern I220 and a peak intensity of a face index (111) I111, a peak intensity ratio I220/I111 is in the range of 0.1 to 10.

摘要翻译： 提供一种扁平的软磁性金属粉末，其包括：在60〜90质量％的范围内的Ni，总计为0.05〜20质量％的范围的0.05〜19.95质量％的Nb，V和Ta中的一种或多种， 当添加Mo时），如果需要，Mo为0.05〜10质量％的范围，如果需要，总计0.01〜1质量％的Al和Mn中的一种或两种，余量包括Fe; 平均粒径为30〜150μm，纵横比（平均粒径/平均厚度）为5〜500; 和平面。 这里，在X射线衍射图案I220中的面部折射率（220）的峰值强度和面部折射率（111）I111的峰值强度时，峰值强度比I220 / I111在0.1〜10的范围内。

公开(公告)号：US07497914B2

公开(公告)日：2009-03-03

申请号：US10567476

申请日：2004-08-04

申请人： Kazunori Igarashi ,  Gakuji Uozumi ,  Yasushi Nayuki ,  Ryoji Nakayama

发明人： Kazunori Igarashi ,  Gakuji Uozumi ,  Yasushi Nayuki ,  Ryoji Nakayama

IPC分类号： H01F1/147

摘要： The invention provides an Fe—Ni—Mo soft magnetic flaky powder having a component composition of, in percent by mass, Ni: 60 to 90%, Mo: 0.05 to 1.95%, and the balance of Fe and unavoidable impurities, and a flat surface of an average particle size of 30 to 150 μm, and an aspect ratio (average particle size /average thickness) of 5 to 500; and having a peak intensity ratio I200/I111 within a range between 0.43 and 10, where I200 is the peak height of the face index (200) and I111 is the peak height of the face index (111), in an X-ray diffraction pattern measured in such a manner that the plane including the X-ray incident direction and the diffraction direction is perpendicular to the flat surface of the soft magnetic flaky powder, and the angle between the incident direction and the flat surface is equal to the angle between the diffraction direction and the flat surface. Furthermore, the invention provides a soft magnetic flaky powder with oxide layer wherein an oxide layer of a thickness of 50 to 1000 Å is formed on the surface of this soft magnetic flaky powder.

公开(公告)号：US07423071B2

公开(公告)日：2008-09-09

申请号：US10570670

申请日：2004-08-12

申请人： Kenji Mogami ,  Ryoji Nakayama

发明人： Kenji Mogami ,  Ryoji Nakayama

IPC分类号： B29C44/34

CPC分类号： C08L23/10 ,  C08F255/00 ,  C08F255/02 ,  C08J9/0061 ,  C08J9/122 ,  C08J2323/10 ,  C08J2323/12 ,  C08J2423/00 ,  C08L23/06 ,  C08L23/12 ,  C08L51/06 ,  C08L53/00 ,  C08L2023/44 ,  C08L2205/03 ,  Y10T428/249989 ,  C08L2666/06 ,  C08L2666/02 ,  C08L2666/24 ,  C08L2666/04

摘要： A polypropylene-based resin composition for injection foam molding, containing (A) 50 to 95 parts by weight of a linear polypropylene-based resin having a melt flow rate of from 10 g/10 min. to 100 g/10 min. and a melt tension of 2 cN or less and (B) 5 to 50 parts by weight of a modified polypropylene having a melt flow rate of from 0.1 g/10 min. to less than 10 g/10 min. and a melt tension of 5 cN or more and exhibiting a strain hardening property (provided that a total of the resin (A) and the resin (B) is 100 parts by weight) and a foaming agent are supplied to an injection molding machine to be injected into a die, thereby achieving a foam molding. It is thus possible to obtain a injection foamed molded article which has a satisfactory injection foam moldability, a skin layer having little silver streaks or the like on its surface, and an internal core layer having a foam of high expansion ratio and uniformly fine and a excellent appearance glossiness, lightweightness, and rigidity at a low cost.

摘要翻译： 用于注射发泡成型的聚丙烯类树脂组合物，其含有（A）50〜95重量份的熔体流动速率为10g / 10min的线性聚丙烯类树脂。 至100g / 10分钟。 熔体张力为2cN以下，（B）5〜50重量份熔体流动速率为0.1g / 10min的改性聚丙烯。 至少于10g / 10分钟。 和5cN以上的熔融张力，并显示出应变硬化性（树脂（A）和树脂（B）的总量为100重量份）和发泡剂供给到注射成型机中 注入模具中，从而实现泡沫成型。 因此，可以获得具有令人满意的注射发泡成型性，表面上几乎没有银条等的表皮层的喷射发泡成型体，以及具有高膨胀率，均匀地发泡的内芯层，以及 优异的外观光泽度，轻便性和刚性低成本。

公开(公告)号：US5417773A

公开(公告)日：1995-05-23

申请号：US319465

申请日：1994-10-06

申请人： Ryoji Nakayama ,  Takuo Takeshita ,  Yoshinari Ishii ,  Tamotsu Ogawa

发明人： Ryoji Nakayama ,  Takuo Takeshita ,  Yoshinari Ishii ,  Tamotsu Ogawa

IPC分类号： B22F1/00 ,  B22F9/02 ,  B22F9/04 ,  C22C33/02 ,  C22C38/00 ,  H01F1/053 ,  H01F1/057 ,  H01F1/06

CPC分类号： H01F1/0573 ,  B22F9/023

摘要： The present invention provides a method for producing a rare earth alloy magnet powder exhibiting stable and superior magnetic properties using hydrogenation followed by dehydrogenation. In a method for producing a rare earth alloy magnet powder wherein a homogenized rare earth alloy magnet alloy material is subjected to hydrogenation at a temperature in a range between 750.degree. C. and 950.degree. C., followed by dehydrogenation at a temperature in a range between 750.degree. C. and 950.degree. C.; cooled; and crushed, both the hydrogenation and the dehydrogenation are carried out in a vacuum tube furnace; and the alloy material in the dehydrogenation step maintains a temperature drop of at most 50.degree. C. due to an endothermic reaction which occurs during the dehydrogenation step.

摘要翻译： 本发明提供一种稀土合金磁粉的制造方法，其特征在于，使用氢化脱氢后表现出稳定而优异的磁性能。 在稀土合金磁铁粉末的制造方法中，在750〜950℃的温度范围内使均质化的稀土类合金磁铁合金材料进行氢化，然后在一定范围的温度下脱氢 在750℃和950℃之间。 冷却 粉碎，氢化和脱氢均在真空管式炉中进行; 并且脱氢步骤中的合金材料由于在脱氢步骤期间发生的吸热反应而保持至多50℃的温度下降。

公开(公告)号：US5250206A

公开(公告)日：1993-10-05

申请号：US763432

申请日：1991-09-19

申请人： Ryoji Nakayama ,  Takuo Takeshita ,  Tamotsu Ogawa

发明人： Ryoji Nakayama ,  Takuo Takeshita ,  Tamotsu Ogawa

IPC分类号： B22F9/02 ,  H01F1/057 ,  C04B35/04

CPC分类号： B22F9/023 ,  H01F1/0571 ,  H01F1/0572 ,  H01F1/0573 ,  H01F1/0578

摘要： A R-Fe-B or R-Fe-Co-B permanent magnet powder excellent in magnetic anisotropy and corrosion resistivity, having powder particles. The powder particles each consist essentially of, in atomic percentage:R: 10-20%B: 3-20%;at least one element selected from the group consisting of Ti, V, Nb, Ta, Al, and Si: 0.001-5.0%; andFe and inevitable impurities: the balance,The R-Fe-Co-B magnet powder further contains 0.1-50% Co.The powder particles each have an aggregated recrystallized structure having a main phase thereof formed by a R.sub.2 Fe.sub.14 B or R.sub.2 (Co,Fe).sub.14 B type intermetallic compound phase having a tetragonal structure. The intermetallic compound phase is formed of recrystallized grains aggregated therein and includes at least 50 volumetric % of recrystallized grains having a ratio b/a smaller than 2 provided that a is designated by the smallest diameter of each of the recrystallized grains, and b is by the largest diameter thereof. The recrystallized grains form the aggregated recrystallized structure having an average grain size within a range of 0.05-20 .mu.m.

公开(公告)号：US5228930A

公开(公告)日：1993-07-20

申请号：US560594

申请日：1990-07-31

申请人： Ryoji Nakayama ,  Takuo Takeshita ,  Tamotsu Ogawa

发明人： Ryoji Nakayama ,  Takuo Takeshita ,  Tamotsu Ogawa

IPC分类号： B22F9/02 ,  H01F1/057

CPC分类号： B22F9/023 ,  H01F1/0571 ,  H01F1/0573

摘要： There is disclosed a R-Fe-B or R-Fe-Co-B alloy permanent magnet powder which may contain Ga, Zr or Hf, or may further contain Al, Si or V. Each individual particle of the powder includes a structure of recrystallized grains containing a R.sub.2 Fe.sub.14 B or R.sub.2 (Fe,Co).sub.14 B intermetallic compound phase. The intermetallic compound phase has recrystallized grains of a tetragonal crystal structure having an average crystal grain size of 0.05 to 20 .mu.m. At least 50% by volume of the recrystallized grains of the aggregated structure are formed so that a ratio of the greatest dimension to the smallest dimension is less than 2 for each recrystallized grain. In order to manufacture the magnet powder, regenerative material and alloy material are prepared and their temperature is elevated in a hydrogen atmosphere. Then, the alloy material and the regenerative material are held in the same atmosphere at a temperature of 750.degree. C. to 950.degree. C., and then held in a vacuum at 750.degree. C. to 950.degree. C., and cooled and crushed. A bonded magnet produced using the above magnet powder is also disclosed.

公开(公告)号：US08409371B2

公开(公告)日：2013-04-02

申请号：US13227359

申请日：2011-09-07

申请人： Muneaki Watanabe ,  Ryoji Nakayama ,  Gakuji Uozumi

发明人： Muneaki Watanabe ,  Ryoji Nakayama ,  Gakuji Uozumi

IPC分类号： C23C28/00

CPC分类号： C22C38/06 ,  B22F1/02 ,  B22F2998/10 ,  B22F2999/00 ,  C22C33/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/08 ,  C22C38/10 ,  C22C38/12 ,  C22C38/18 ,  H01F1/33 ,  H01F41/0246 ,  B22F1/0007 ,  B22F1/0088 ,  B22F3/02 ,  B22F3/10 ,  B22F2201/03 ,  B22F2201/11 ,  B22F2201/02

摘要： A method for producing a soft magnetic metal powder coated with a Mg-containing oxide film, comprising the steps of adding and mixing a Mg powder with a soft magnetic metal powder which has been subjected to heating treatment in an oxidizing atmosphere at a temperature of 40 to 500° C. to obtain a mixed powder, and heating the mixed powder at a temperature of 150 to 1,100° C. in an inert gas or vacuum atmosphere under a pressure of 1×10−12 to 1×10−1 MPa, while optionally tumbling; and a method for producing a composite soft magnetic material from the soft magnetic metal powder coated with a Mg-containing oxide film.

摘要翻译： 一种涂覆有含Mg氧化物膜的软磁性金属粉末的制造方法，其特征在于，包括以下步骤：将Mg粉末与在氧化气氛中在40℃的温度下进行了加热处理的软磁性金属粉末混合 至500℃以获得混合粉末，并在惰性气体或真空气氛中在1×10-12至1×10-1MPa的压力下在150至1100℃的温度下加热混合粉末， 同时可选地翻滚; 以及由含有Mg的氧化物膜涂覆的软磁性金属粉末制造复合软磁性材料的方法。

公开(公告)号：US20090174512A1

公开(公告)日：2009-07-09

申请号：US11814603

申请日：2005-11-02

申请人： Muneaki Watanabe ,  Ryoji Nakayama ,  Gakuji Uozumi

发明人： Muneaki Watanabe ,  Ryoji Nakayama ,  Gakuji Uozumi

IPC分类号： B32B15/02 ,  H01F1/00

CPC分类号： H01F1/33 ,  B22F1/02 ,  B22F2998/00 ,  C22C33/0207 ,  H01F1/14766 ,  H01F1/24 ,  H02K1/02 ,  Y10T428/2991 ,  Y10T428/2993 ,  Y10T428/32 ,  B22F2207/07

摘要： Oxide-coated Fe powder for producing various electromagnetic circuit components requiring high resistivity is provided. The oxide-coated Fe powder is a Mg-containing oxide film-coated iron powder coated with an Mg—Fe—O ternary-based deposition film at least containing (Mg, Fe)O. The (Mg,Fe)O is a crystalline MgO-dissolving wustite. The Mg—Fe—O ternary-based oxide deposition film has a sulfur-enriched layer containing a higher concentration of sulfur than that of central portion of the iron powder, fine crystalline texture having a grain size of 200 nm or less, and the outermost surface is substantially composed of MgO. A composite soft magnetic material using the Mg-containing oxide film-coated iron powder is also provided.

摘要翻译： 提供了用于生产需要高电阻率的各种电磁电路部件的氧化物涂覆的Fe粉末。 氧化物被覆的Fe粉末是含有至少含有（Mg，Fe）O的Mg-Fe-O三元系沉积膜的含Mg氧化物膜被覆铁粉末。 （Mg，Fe）O是结晶的MgO溶解的方钨矿。 Mg-Fe-O三元基氧化物沉积膜具有含有比铁粉中心部分更高浓度的硫的富集层，具有200nm以下的粒径的微细晶体结构， 表面基本上由MgO构成。 还提供了使用含Mg氧化物膜的铁粉的复合软磁性材料。

公开(公告)号：US20090025830A1

公开(公告)日：2009-01-29

申请号：US11815685

申请日：2006-02-09

申请人： Gakuji Uozumi ,  Ryoji Nakayama ,  Yasushi Nayuki

发明人： Gakuji Uozumi ,  Ryoji Nakayama ,  Yasushi Nayuki

IPC分类号： H01F1/147 ,  B22F1/02

CPC分类号： H01F1/1475 ,  B22F1/0055 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/0433 ,  C22C2202/02 ,  Y10T428/12181 ,  B22F9/082 ,  B22F1/0085 ,  B22F1/02 ,  B22F1/0059 ,  B22F3/18 ,  B22F2201/03

摘要： A flat soft magnetic metal powder is provided that includes: Ni in the range of 60 to 90 mass %, one or more kinds of Nb, V, and Ta in the range of 0.05 to 20 mass % in total (0.05 to 19.95 mass % when Mo is added thereto), Mo in the range of 0.05 to 10 mass % if necessary, one or two kinds of Al and Mn in the range of 0.01 to 1 mass % in total if necessary, and the balance including Fe; an average grain size of 30 to 150 μm and an aspect ratio (average grain size/average thickness) of 5 to 500; and a flat face. Here, with a peak intensity of a face index (220) in an X-ray diffraction pattern I220 and a peak intensity of a face index (111) I111, a peak intensity ratio I220/I111 is in the range of 0.1 to 10.

摘要翻译： 提供一种扁平的软磁性金属粉末，其包括：在60〜90质量％的范围内的Ni，总计为0.05〜20质量％的范围的0.05〜19.95质量％的Nb，V和Ta中的一种或多种， 当添加Mo时），如果需要，Mo为0.05〜10质量％的范围，如果需要，总计0.01〜1质量％的Al和Mn中的一种或两种，余量包括Fe; 平均粒径为30〜150μm，纵横比（平均粒径/平均厚度）为5〜500; 和平面。 这里，在X射线衍射图案I220中的面部折射率（220）的峰值强度和面部折射率（111）I111的峰值强度时，峰值强度比I220 / I111在0.1〜10的范围内。

公开(公告)号：US07371271B2

公开(公告)日：2008-05-13

申请号：US10472499

申请日：2002-03-29

申请人： Kazunori Igarashi ,  Ryoji Nakayama ,  Koichiro Morimoto ,  Muneaki Watanabe

发明人： Kazunori Igarashi ,  Ryoji Nakayama ,  Koichiro Morimoto ,  Muneaki Watanabe

IPC分类号： B22F3/00 ,  H01F1/01

CPC分类号： H01F41/0246 ,  C04B2235/3206 ,  C04B2235/3262 ,  C04B2235/3274 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/5436 ,  C04B2235/5445 ,  H01F1/22 ,  H01F1/24 ,  H01F1/33 ,  Y10T428/256

摘要： An object of the present invention is to provide a composite soft magnetic sintered material that has high density, high mechanical strength and high relative magnetic permeability at high frequencies and, in order to achieve this object, the present invention provides a method of producing the composite soft magnetic sintered material, which comprises mixing a composite soft magnetic powder, that consists of iron powder, Fe—Si based soft magnetic iron alloy powder, Fe—Al based soft magnetic iron alloy powder, Fe—Si—Al based soft magnetic iron alloy powder, Fe—Cr based soft magnetic iron alloy powder or nickel-based soft magnetic alloy powder (hereinafter these powders are referred to as soft magnetic metal powder) of which particles arc coated with a ferrite layer which has a spinel structure, with 0.05 to 1.0% by weight of silicon dioxide powder having a mean powder particle size of 100 nm or less and sintering the mixed powder after compression molding, or processing two or more kinds of the composite soft magnetic powders, of which particles are coated with ferrite layer having a spinel structure of a different compositions, by compression molding and sintering.

摘要翻译： 本发明的目的是提供一种在高频下具有高密度，高机械强度和高相对磁导率的复合软磁性烧结材料，为了实现该目的，本发明提供一种复合材料的制造方法 软磁烧结材料包括混合由铁粉，Fe-Si系软磁铁合金粉末，Fe-Al系软磁铁合金粉末，Fe-Si-Al系软磁铁合金粉末组成的复合软磁粉末 粉末，Fe-Cr类软磁铁合金粉末或镍基软磁性合金粉末（以下称为软磁性金属粉末），其粉末电弧涂覆有具有尖晶石结构的铁素体层，其中0.05〜 1.0重量％的平均粉末粒径为100nm以下的二氧化硅粉末，在压缩成型后烧结混合粉末，或者加工两种以上的亲 通过压缩成型和烧结，复合软磁粉末的ds，其中颗粒被具有不同组成的尖晶石结构的铁氧体层涂覆。