公开(公告)号：US5573863A

公开(公告)日：1996-11-12

申请号：US201831

申请日：1994-02-25

申请人： Ysuo Hayakawa ,  Akinori Kojima ,  Akihiro Makino

发明人： Ysuo Hayakawa ,  Akinori Kojima ,  Akihiro Makino

IPC分类号： C22C38/00 ,  C21D6/00 ,  G11B5/667 ,  H01F1/14 ,  H01F10/12 ,  H01F10/13 ,  H01F10/187 ,  H01F17/00 ,  H01F41/04 ,  G11B5/66

CPC分类号： H01F41/046 ,  H01F10/126 ,  H01F10/131 ,  H01F10/187 ,  H01F17/0006 ,  H01F10/265 ,  Y10S428/90 ,  Y10T428/115 ,  Y10T428/12458 ,  Y10T428/12465 ,  Y10T428/12535 ,  Y10T428/12542 ,  Y10T428/12583 ,  Y10T428/1259 ,  Y10T428/12611 ,  Y10T428/12931

摘要： A soft magnetic alloy film includes: a fine crystalline phase having an average grain size of 10 nm or less and essentially consisting of Fe of b-c-c structure; and an amorphous phase containing a rare earth element or at least one of the elements, Ti, Zr, Hf, V, Nb, Ta and W, and O (oxygen) in a large amount, the fine crystalline phase and amorphous phase existing in a mixed state, with the proportion of the fine crystalline phase of Fe of b-c-c structure to the entire structure being 50% or less. A plane magnetic element employs such a soft magnetic alloy.

摘要翻译： 软磁性合金膜包括：平均粒径为10nm以下且基本上由b-c-c结构的Fe组成的细晶相; 以及含有稀土元素或Ti，Zr，Hf，V，Nb，Ta和W中的至少一种元素，以及O（氧）中的至少一种的非晶相，存在微细晶相和非晶相 混合状态，bcc结构的Fe的细晶相的比例与整个结构的比例为50％以下。 平面磁性元件采用这种软磁性合金。

公开(公告)号：US06235129B1

公开(公告)日：2001-05-22

申请号：US09201922

申请日：1998-12-01

申请人： Akinori Kojima ,  Akihiro Makino ,  Takashi Hatanai ,  Yutaka Yamamoto ,  Akihisa Inoue

发明人： Akinori Kojima ,  Akihiro Makino ,  Takashi Hatanai ,  Yutaka Yamamoto ,  Akihisa Inoue

IPC分类号： H01F1057

CPC分类号： H01F1/0571 ,  H01F1/058

摘要： A hard magnetic material contains Co as a main component, at least one element Q of P, C, Si and B, and Sm, and an amorphous phase and a fine crystalline phase. The texture of the hard magnetic material contains 50% by volume or more of fine crystalline phase having an average crystal grain size of 100 nm or less, and has a mixed phase state containing a soft magnetic phase and a hard magnetic phase. Further, anisotropy is imparted to the crystal axis of the hard magnetic phase.

摘要翻译： 硬磁性材料包含Co作为主要成分，至少有一个P，C，Si和B的元素Q和Sm，以及非晶相和细晶相。 硬磁性材料的质地含有平均结晶粒径为100nm以下的微细晶相的50体积％以上，具有含有软磁性相和硬磁性相的混合相状态。 此外，赋予硬磁相的晶轴各向异性。

公开(公告)号：US5509975A

公开(公告)日：1996-04-23

申请号：US312847

申请日：1994-09-27

申请人： Akinori Kojima ,  Katsuaki Hangai ,  Shoji Yoshida ,  Akihiro Makino ,  Tsuyoshi Masumoto ,  Akihsia Inoue

发明人： Akinori Kojima ,  Katsuaki Hangai ,  Shoji Yoshida ,  Akihiro Makino ,  Tsuyoshi Masumoto ,  Akihsia Inoue

IPC分类号： B22F9/04 ,  B22F3/00 ,  C22C33/02 ,  C22C33/04 ,  C22C38/00 ,  C22C38/14 ,  C22C45/02 ,  H01F1/153 ,  H01F1/12

CPC分类号： B22F3/006 ,  H01F1/15308 ,  H01F1/15341 ,  H01F1/1535

摘要： A soft magnetic bulky alloy according to the present invention is obtained by forming under pressure a powder and granule material mainly made of a Fe-M-B based amorphous alloy containing Fe, B and M where M is at least one element selected from a group consisting of Ti, Zr, Hf, V, Nb, Ta, Mo and W. In the soft magnetic bulky alloy, an amorphous alloy phase and a bcc phase with fine grain sizes of 30 nm or below are present in a mixed state, or the bcc phase with fine grain sizes of 30 nm or below is mainly present. The present invention also discloses a method of manufacturing such a soft magnetic bulky alloy.

摘要翻译： 通过在压力下形成主要由含有Fe，B和M的Fe-MB基非晶态合金制成的粉末和颗粒材料，得到本发明的软磁性体积合金，其中M为选自以下的至少一种元素： Ti，Zr，Hf，V，Nb，Ta，Mo和W.在软磁膨胀合金中，晶粒尺寸为30nm以下的非晶合金相和bcc相以混合状态存在，或bcc 主要存在30nm以下的细粒度的相。 本发明还公开了一种制造这种软磁体积合金的方法。

公开(公告)号：US06312530B1

公开(公告)日：2001-11-06

申请号：US09173292

申请日：1998-10-14

申请人： Akinori Kojima ,  Akihiro Makino ,  Takashi Hatanai ,  Yutaka Yamamoto ,  Akihisa Inoue

发明人： Akinori Kojima ,  Akihiro Makino ,  Takashi Hatanai ,  Yutaka Yamamoto ,  Akihisa Inoue

IPC分类号： H01F1055

CPC分类号： H01L41/20 ,  H01F1/0306 ,  H01F1/15308 ,  H01F1/15325

摘要： A magnetostrictive material is produced by annealing an alloy consisting essentially of an amorphous phase and comprising Fe, Dy, and Tb as primary components, at least one element selected from the group consisting of Ta, Nb, Zr, Hf, V, W, Mo, Si and B and/or at least one element selected from the group consisting of Cr, Al, Ga, Ge, Cu, Au, Ag, Pt, Pd, Os, Ir, and Rh.

摘要翻译： 一种磁致伸缩材料是通过退火基本上由非晶相组成并包含Fe，Dy和Tb作为主要成分的合金，至少一种选自Ta，Nb，Zr，Hf，V，W，Mo ，Si和B和/或选自Cr，Al，Ga，Ge，Cu，Au，Ag，Pt，Pd，Os，Ir和Rh中的至少一种元素。

公开(公告)号：US06171410B2

公开(公告)日：2001-01-09

申请号：US09026853

申请日：1998-02-20

申请人： Akinori Kojima ,  Akihiro Makino ,  Takashi Hatanai ,  Yutaka Yamamoto ,  Akihisa Inoue

发明人： Akinori Kojima ,  Akihiro Makino ,  Takashi Hatanai ,  Yutaka Yamamoto ,  Akihisa Inoue

IPC分类号： H01F104

CPC分类号： B82Y25/00 ,  H01F1/0579

摘要： A hard magnetic alloy in accordance with the present invention is composed of at least element T selected from the group consisting of Fe, Co and Ni, at least one rare earth element R, and boron (B). The hard magnetic alloy has an absolute value of the temperature coefficient of magnetization of 0.15%/° C. or less and a coercive force of 1 kOe, when being used in a shape causing a permeance factor of 2 or more. A hard magnetic alloy compact in accordance with the present invention has a texture, in which at least a part or all of the texture comprises an amorphous phase or fine crystalline phase having an average crystal grain size of 100 nm or less, is subjected to crystallization or grain growth under stress, such that a mixed phase composed of a soft magnetic or semi-hard magnetic phase and a hard magnetic phase is formed in the texture, and anisotropy is imparted to the crystal axis of the hard magnetic phase.

摘要翻译： 根据本发明的硬磁合金由至少选自Fe，Co和Ni，至少一种稀土元素R和硼（B）的元素T组成。 当使用导磁系数为2以上的形状时，硬磁合金的磁化温度的绝对值为0.15％/℃以下，矫顽力为1kOe。 根据本发明的硬磁合金压块具有其中至少部分或全部组织包含平均晶粒尺寸为100nm以下的非晶相或细结晶相的织构，进行结晶化 或在应力下的晶粒生长，使得在织构中形成由软磁性或半硬磁性相和硬磁性相组成的混合相，并且赋予硬磁相的晶轴各向异性。

公开(公告)号：US6034450A

公开(公告)日：2000-03-07

申请号：US111991

申请日：1998-07-08

申请人： Akinori Kojima ,  Akihiro Makino ,  Takashi Hatanai ,  Yutaka Yamamoto ,  Akihisa Inoue

发明人： Akinori Kojima ,  Akihiro Makino ,  Takashi Hatanai ,  Yutaka Yamamoto ,  Akihisa Inoue

IPC分类号： C22C38/00 ,  H01F1/057 ,  H02K1/02 ,  H02K15/02 ,  H02K37/18 ,  H02K37/00

CPC分类号： B82Y25/00 ,  H01F1/0571 ,  H01F1/0579 ,  H02K1/02 ,  H02K37/18

摘要： In a stepping motor having a stator provided with an electromagnet and a rotor composed of a hard magnetic alloy, the hard magnetic alloy comprises at least one element T of Fe and Co, at least one element R of rare earth elements and B, has a remanence ratio of at least 0.7, remanent magnetization (Ir) of at least 120 emu/g and coercive force (iHc) of at least 1 kOe and includes a fine crystalline phase having an average crystal grain size of 100 nm or less as a main phase. The hard magnetic alloy is solidified and compacted by making use of a softening phenomenon which arises when the amorphous phase contained in the structure of the hard magnetic alloy is crystallized. A method of manufacturing the hard magnetic alloy used to the stepping motor is also disclosed.

摘要翻译： 在具有设置有电磁体的定子和由硬磁合金构成的转子的步进电机中，硬磁合金包括至少一种Fe和Co的元素T，稀土元素和B的至少一个元素R具有 至少为0.7的剩磁比（Ir）至少为120emu / g，矫顽磁力（iHc）为至少1kOe，并且包括平均晶粒尺寸为100nm以下的细晶相为主 相。 通过利用在硬质合金的结构中包含的非晶相结晶时产生的软化现象，硬磁性合金被固化和压实。 还公开了用于步进电动机的硬磁合金的制造方法。

公开(公告)号：US06692582B1

公开(公告)日：2004-02-17

申请号：US09697632

申请日：2000-10-26

申请人： Akinori Kojima ,  Akihiro Makino ,  Takashi Hatanai ,  Yutaka Yamamoto ,  Akihisa Inoue

发明人： Akinori Kojima ,  Akihiro Makino ,  Takashi Hatanai ,  Yutaka Yamamoto ,  Akihisa Inoue

IPC分类号： H01F100

CPC分类号： B82Y25/00 ,  H01F1/0579

摘要： A hard magnetic alloy in accordance with the present invention is composed of at least element T selected from the group consisting of Fe, Co and Ni, at least one rare earth element R, and boron (B). The hard magnetic alloy has an absolute value of the temperature coefficient of magnetization of 0.15%/° C. or less and a coercive force of 1 kOe, when being used in a shape causing a permeance factor of 2 or more. A hard magnetic alloy compact in accordance with the present invention has a texture, in which at least a part or all of the texture comprises an amorphous phase or fine crystalline phase having an average crystal grain size of 100 nm or less, is subjected to crystallization or grain growth under stress, such that a mixed phase composed of a soft magnetic or semi-hard magnetic phase and a hard magnetic phase is formed in the texture, and anisotropy is imparted to the crystal axis of the hard magnetic phase.

摘要翻译： 根据本发明的硬磁合金由至少选自Fe，Co和Ni，至少一种稀土元素R和硼（B）的元素T组成。 当使用导磁系数为2以上的形状时，硬磁合金的磁化温度的绝对值为0.15％/℃以下，矫顽力为1kOe。 根据本发明的硬磁合金压块具有其中至少部分或全部组织包含平均晶粒尺寸为100nm以下的非晶相或细结晶相的织构，进行结晶化 或在应力下的晶粒生长，使得在织构中形成由软磁性或半硬磁性相和硬磁性相组成的混合相，并且赋予硬磁相的晶轴各向异性。

公开(公告)号：US4936929A

公开(公告)日：1990-06-26

申请号：US307859

申请日：1989-02-07

申请人： Mikio Nakashima ,  Akinori Kojima ,  Akihiro Makino

发明人： Mikio Nakashima ,  Akinori Kojima ,  Akihiro Makino

IPC分类号： C22C19/07 ,  C22C19/00 ,  C22C45/04 ,  G11B5/147 ,  G11B5/31 ,  H01F1/153 ,  H01F10/12 ,  H01F10/13 ,  H01F10/16

CPC分类号： G11B5/147 ,  C22C45/04 ,  G11B5/3109 ,  G11B5/3163 ,  H01F1/153 ,  H01F1/15316 ,  H01F10/132

摘要： A soft magnetic amorphous ternary alloy of Co-Ta-Hf which comprises a composition represented by Co.sub.x Ta.sub.y Hf.sub.z, wherein the composition ratio of x, y and z ranges, in atomic %,81%.ltoreq.x.ltoreq.85%8%.ltoreq.y.ltoreq.13%5%.ltoreq.z.ltoreq.10%1.ltoreq.y/z.ltoreq.2.5and x+y+z=100%. Thus, the refractory amorphous alloy has excellent thermal stability, preferable soft magnetic property, high mass productivity, and can be heat treated at 500.degree. C. or higher.

摘要翻译： Co-Ta-Hf的软磁性无定形三元合金，其包含由CoxTayHfz表示的组合物，其中x，y和z的组成比范围为原子％，81％

公开(公告)号：US06446702B1

公开(公告)日：2002-09-10

申请号：US09324994

申请日：1999-06-02

申请人： Junichi Murakami ,  Akinori Kojima ,  Yutaka Yamamoto ,  Akihiro Makino ,  Takashi Hatanai

发明人： Junichi Murakami ,  Akinori Kojima ,  Yutaka Yamamoto ,  Akihiro Makino ,  Takashi Hatanai

IPC分类号： B22D1100

CPC分类号： B22D11/0694 ,  B22D11/0602

摘要： An apparatus for producing a metallic ribbon includes a cooling roll, a melt nozzle, and an air-cutoff unit provided to cover at least a portion of the periphery of the cooling roll and at least the melt blowout end of the melt nozzle, for preventing an inflow of air due to rotation of the cooing roll. The air-cutoff unit has a roll top air-cutoff plate provided above the cooling roll to extent from the front side to the rear side in the rotation direction of the cooling roll in such a manner that it approaches the cooling surface in the direction opposite to the rotation direction of the cooling roll. The melt blowout end of the melt nozzle is arranged to pass through a nozzle mounting hole provided in the roll top air-cutoff plate and face the cooling surface of the cooling roll.

摘要翻译： 一种用于制造金属带的设备包括冷却辊，熔体喷嘴和空气截断单元，其设置成覆盖冷却辊的至少一部分周边和至少熔体喷嘴的熔喷部分，用于防止 由于冷却辊的旋转引起的空气流入。 空气截断单元具有设置在冷却辊上方的辊顶空气切断板，其在冷却辊的旋转方向上从前侧到后侧延伸，使得其沿相反方向接近冷却表面 相对于冷却辊的旋转方向。 熔体喷嘴的熔喷端部设置成穿过设置在辊顶空气切断板上的喷嘴安装孔并面对冷却辊的冷却面。

公开(公告)号：US06425961B1

公开(公告)日：2002-07-30

申请号：US09312576

申请日：1999-05-14

申请人： Akinori Kojima ,  Akihiro Makino ,  Yutaka Yamamoto ,  Akihisa Inoue

发明人： Akinori Kojima ,  Akihiro Makino ,  Yutaka Yamamoto ,  Akihisa Inoue

IPC分类号： H01F1053

CPC分类号： B82Y25/00 ,  B22F1/0003 ,  B22F1/0044 ,  B22F2999/00 ,  C22C1/0441 ,  H01F1/0576 ,  H01F1/0579 ,  B22F9/002 ,  B22F3/10 ,  B22F9/007

摘要： The present invention provides a method for producing a composite hard magnetic material, wherein a composite powder—prepared by mixing; a composite hard magnetic material produced by consolidating a composite powder prepared by mixing an alloy powder having an amorphous phase containing a main component Co and at least Sm, and an alloy powder comprising an amorphous phase as a principal phase and containing at least Fe and/or Co, rare earth elements R and B; an alloy powder having an amorphous phase containing a main component Co and at least Sm; and an alloy powder having an amorphous phase containing at least Fe and/or Co, rare earth elements R and B—is consolidated by taking advantage of softening phenomenon caused by crystallization of the amorphous phase in the alloy powder comprising an amorphous phase as a principal phase.

摘要翻译： 本发明提供一种复合硬磁性材料的制造方法，其中通过混合制备的复合粉末; 通过将通过混合具有含有主成分Co和至少Sm的非晶相的合金粉末制备的复合粉末和包含非晶相作为主相的合金粉末而制成的复合硬磁性材料，并且至少含有Fe和/ 或Co，稀土元素R和B; 具有含有主成分Co和至少Sm的非晶相的合金粉末; 并且具有至少包含Fe和/或Co的非晶相的稀土元素R和B的合金粉末通过利用由非晶相作为主要的合金粉末中的非晶相的结晶引起的软化现象而被固化 相。