专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08329056B2 Anisotropic rare earth-iron based resin bonded magnet 有权
标题翻译：各向异性稀土 - 铁基树脂粘结磁铁
公开(公告)号：US08329056B2
公开(公告)日：2012-12-11
申请号：US12853601
申请日：2010-08-10
申请人： Fumitoshi Yamashita , Osamu Yamada , Shiho Ohya
发明人： Fumitoshi Yamashita , Osamu Yamada , Shiho Ohya
IPC分类号： H01F1/08
CPC分类号： H01F1/0578 , H01F1/059 , H01F7/02 , H01F41/0266 , H01F41/028
摘要： Anisotropic rare earth-iron based resin bonded magnet comprises: [1] a continuous phase including: (1) a spherical Sm2Fe17N3 based magnetic material covered with epoxy oligomer where its average particle size is 1 to 10 μm, its average aspect ratio ARave is 0.8 or more, and mechanical milling is not applied after Sm—Fe alloy is nitrided; (2) a linear polymer with active hydrogen group reacting to the oligomer; and (3) additive; and [2] a discontinuous phase being an Nd2Fe14B based magnetic material coated with the epoxy oligomer where its average particle size is 50 to 150 μm, and its average aspect ratio ARave is 0.65 or more, further satisfying: [3] the air-gap ratio of a granular compound on the phases is 5% or less; and [4] a composition where crosslinking agent with 10 μm or less is adhered on the granular compound is formed at 50 MPa or less.
摘要翻译：各向异性稀土 - 铁基树脂粘结磁铁包括：[1]连续相，包括：（1）用环氧低聚物覆盖的球形Sm2Fe17N3系磁性材料，其平均粒径为1〜10μm，平均长径比ARave为0.8 或以上，并且在Sm-Fe合金被氮化之后不施加机械研磨; （2）具有与低聚物反应的活性氢基团的直链聚合物; 和（3）添加剂; 和[2]不连续相是涂覆有环氧低聚物的Nd 2 Fe 14 B基磁性材料，其平均粒度为50〜150μm，其平均长径比Arave为0.65以上，进一步满足：[3]气隙相上的粒状化合物的比例为5％以下; 和[4]在该粒状化合物上附着有10μm以下的交联剂的组合物形成为50MPa以下。

2. 发明授权

US08183732B2 Radial anisotropic magnet manufacturing method, permanent magnet motor using radial anisotropic magnet, and iron core-equipped permanent magnet motor 有权
标题翻译：径向各向异性磁体制造方法，使用径向各向异性磁体的永磁电动机和配备铁芯的永磁电动机
公开(公告)号：US08183732B2
公开(公告)日：2012-05-22
申请号：US13277355
申请日：2011-10-20
申请人： Fumitoshi Yamashita , Hiroshi Murakami , Kiyomi Kawamura
发明人： Fumitoshi Yamashita , Hiroshi Murakami , Kiyomi Kawamura
IPC分类号： H02K1/27
CPC分类号： H01F41/028 , H01F1/0578 , H01F1/059 , H01F1/083 , H02K1/27 , Y10T29/49076
摘要： To improve tranquility and controllability of an iron core-equipped permanent magnet motor with an improved maximum energy product (BH)max by improving shape compatibility of a radial anisotropic magnet, there is provided a radial anisotropic magnet manufacturing method of fixing magnet powder in a net shape so as to maintain a magnetic anisotropic (C-axis) angle of a magnet with respect to a tangential line and for performing a deformation with a flow so as to have a predetermined circular arc shape or a predetermined annular shape. Particularly, by performing a deformation with a viscous flow or an extension flow, a deformability of the magnet is improved, and thus shape compatibility with respect to a thickness is. improved. A C-axis angle θ with respect to a tangential direction is controlled at an arbitrary position and an arbitrary angle so as to reduce cogging torque without separating a magnetic pole into segments.
摘要翻译：为了通过改善径向各向异性磁体的形状相容性来提高具有改进的最大能量乘积（BH）max的含铁芯永磁电动机的平静性和可控性，提供了将磁体粉末固定在网中的径向各向异性磁体制造方法形状，以便相对于切向线保持磁体的磁各向异性（C轴）角度，并且以流动进行变形以具有预定的圆弧形状或预定的环形形状。特别地，通过进行粘性流动或延伸流动的变形，能够提高磁体的变形性，能够提高与厚度相应的形状兼容性。 C轴角度; 相对于切向方向被控制在任意位置和任意角度，以便在不将磁极分成段的情况下减小齿槽转矩。

3. 发明申请

US20100218365A1 MANUFACTURING METHOD OF RARE EARTH-IRON RING MAGNET WITH CONTINUOUS ORIENTATION CONTROLLED ANISOTROPY 有权
标题翻译：具有连续方向控制的近地铁磁铁的制造方法
公开(公告)号：US20100218365A1
公开(公告)日：2010-09-02
申请号：US12680869
申请日：2009-05-20
申请人： Fumitoshi Yamashita , Kiyomi Kawamura , Yukihiro Okada , Hiroshi Murakami
发明人： Fumitoshi Yamashita , Kiyomi Kawamura , Yukihiro Okada , Hiroshi Murakami
IPC分类号： H01F41/02
CPC分类号： H02K15/03 , H01F1/0578 , H01F1/059 , H01F41/028 , H02K1/278 , Y10T29/49009 , Y10T29/49069 , Y10T29/49075 , Y10T29/49078 , Y10T29/49803 , Y10T29/49805
摘要： A process of manufacturing segments, an anisotropic direction of which is continuously changed in a plane vertically by a uniform magnetic field maintained in a constant direction and a process of arranging a plurality of segments on a circumference, extruding the segments in a ring shape by rheology based on the viscous deformation of the segments, from one thrust-direction end surface of the segments, and subsequently compressing the segments from both thrust-direction end surfaces of the segments are necessarily included. A ring magnet, anisotropy of which is controlled in a continuous direction, is provided, and a source for generating a static magnetic field has energy density (BH) max≧160 to 180 kJ/m3.
摘要翻译：一种制造段的方法，其各向异性方向通过保持恒定方向的均匀磁场在垂直方向上连续变化，以及在圆周上布置多个段的过程，通过流变学将段挤出成环形基于段的粘性变形，从段的一个推力方向端面，随后从段的两个推力方向端面压缩段必然包括。提供了一种连续方向控制其各向异性的环形磁体，并且用于产生静态磁场的源的能量密度（BH）max≥160-180kJ/ m3。

4. 发明申请

US20090021097A1 PERMANENT MAGNET ROTATOR AND MOTOR USING THE SAME 有权
标题翻译：永久磁铁旋转机和使用它的电机
公开(公告)号：US20090021097A1
公开(公告)日：2009-01-22
申请号：US12162435
申请日：2007-11-21
申请人： Fumitoshi Yamashita , Hiroshi Murakami , Yukihiro Okada , Kiyomi Kawamura
发明人： Fumitoshi Yamashita , Hiroshi Murakami , Yukihiro Okada , Kiyomi Kawamura
IPC分类号： H02K21/12
CPC分类号： H02K1/27 , H01F1/0578 , H01F1/059 , H02K15/03
摘要： A motor generally has a contradictory relation between decrease of cogging torque and increase of torque density. To overcome this problem, continuous direction control is provided for anisotropy with modification of magnetic poles so that the average absolute value of differences between Mθ and 90×sin [φ{2π/(360/p)}] is set to be 3° or less, where Mθ is a direction of anisotropy with respect to a radial tangent line of a magnetic pole plane, φ is a mechanical angle, and p is the number of pole pairs.
摘要翻译：电动机通常与齿槽转矩的减小和转矩密度的增加之间存在矛盾关系。为了克服这个问题，通过改变磁极的各向异性来提供连续方向控制，使得Mta和90xsin [phi {2pi /（360 / p）}]之间的差的平均绝对值设定为3°或更小，其中Mtheta是相对于磁极平面的径向切线的各向异性方向，phi是机械角度，p是极对数。

5. 发明授权

US06978533B1 Method of manufacturing rare earth-iron bond magnet 有权
标题翻译：制造稀土铁磁铁磁铁的方法
公开(公告)号：US06978533B1
公开(公告)日：2005-12-27
申请号：US10048644
申请日：2000-08-07
申请人： Fumitoshi Yamashita , Yuichiro Sasaki
发明人： Fumitoshi Yamashita , Yuichiro Sasaki
IPC分类号： H01F1/08 , B22F3/00 , C22C38/00 , H01F1/057 , H01F41/02 , H02K15/00 , H02K15/14 , H02K15/16
CPC分类号： H01F41/0266 , H01F1/0578 , Y10T29/49009 , Y10T29/4902 , Y10T29/5147 , Y10T29/53143
摘要： A powder molded magnet manufactured by a method comprising the steps of: (1) forming a granular compound of diameter of not more than 250 μm with a rare earth-iron rapid-quenched flake, which has not more than 150 μm in diameter, being coarsely ground if necessary, and a binder, (2) dry-blending the granular compound with fatty acid metallic soap powder, (3) forming compressed powder from the granular compound dry-blended with the fatty acid metallic soap powder, by powder molding, and (4) heat-treating the compressed powder to a temperature higher than a thermally dissociating temperature of stabilized isocyanate.
摘要翻译：一种粉末成型磁铁，其制造方法包括以下步骤：（1）直径不超过150μm的稀土铁快速骤冷片形成直径不大于250μm的粒状化合物，为必要时粗磨，粘合剂，（2）将粒状化合物与脂肪酸金属皂粉末混合，（3）通过粉末成型从与脂肪酸金属皂粉末混合的粒状化合物形成压缩粉末，和（4）将压缩粉末热处理至高于稳定化的异氰酸酯的热解离温度的温度。

6. 发明授权

US06365078B1 Production process for ring shaped resin bonded magnet 有权
标题翻译：环形树脂粘结磁铁的生产工艺
公开(公告)号：US06365078B1
公开(公告)日：2002-04-02
申请号：US09424565
申请日：1999-11-24
申请人： Fumitoshi Yamashita , Hiroshi Ueda , Sunao Hashimoto
发明人： Fumitoshi Yamashita , Hiroshi Ueda , Sunao Hashimoto
IPC分类号： B29C4300
CPC分类号： H01F1/0578 , H01F41/0266 , H01F41/028 , Y10S264/58 , Y10T428/21 , Y10T428/218
摘要： There is provided a process of producing a ring shaped resin bonded magnetic member by molding a feed mixture 24 which contains a lubricant and a magnetic powder composite made of magnetic powder and a heat curable resin composition which is in a solid state at a room temperature. The process is characterized in that (1) heating an inner peripheral surface of the annular cavity 20 so as to transfer heat to the feed mixture 24 whereby heating the feed mixture to a temperature not lower than a softening temperature and below a curing temperature of the resin composition, and compressing the filled feed mixture after or during the heating; and (ii) cooling the inner peripheral surface so as to transfer heat from the heated and compressed feed mixture through the inner peripheral surface, whereby cooling the feed mixture to a temperature below the softening temperature of the resin composition so as to obtain a green compact having a ring shape.
摘要翻译：提供了一种通过模制含有润滑剂的进料混合物24和由磁性粉末制成的磁性粉末复合材料和在室温下处于固态的热固性树脂组合物来制备环形树脂粘合磁性部件的方法。该方法的特征在于：（1）加热环形空腔20的内周表面以将热量传递到进料混合物24，从而将进料混合物加热至不低于软化温度并低于软化温度的温度树脂组合物，并且在加热之后或期间压缩填充的进料混合物; 和（ii）冷却内周面，以便将来自被加热的和压缩的进料混合物的热量通过内周表面传递，由此将进料混合物冷却到低于树脂组合物的软化温度的温度，以获得生坯具有环形。

7. 发明授权

US5874482A Plastic molded product and method for disposal of the same 失效
标题翻译：塑料成型品及其处理方法
公开(公告)号：US5874482A
公开(公告)日：1999-02-23
申请号：US783726
申请日：1997-01-16
申请人： Yoshikazu Yamagata , Takahiko Terada , Hiroshi Onishi , Fumitoshi Yamashita
发明人： Yoshikazu Yamagata , Takahiko Terada , Hiroshi Onishi , Fumitoshi Yamashita
IPC分类号： B09B3/00 , B29B17/00 , B29B17/04 , C08J5/10 , C08J7/00 , C08J11/00 , C08J11/16
CPC分类号： C08J11/16 , C08J2367/06 , Y02W30/705
摘要： A method for disposal of a thermosetting resin containing a material, at least part of which is affected by an alkaline aqueous solution, is disclosed. It comprises at least two steps of including a step of immersing the molded product in an alkaline aqueous solution and a subsequent step of immersing the molded product in water. This method does not require a high temperature as required in a thermal decomposition and does not generate any exhaust gas, and consumes only small energy.
摘要翻译：公开了一种处理含有至少部分受碱性水溶液影响的材料的热固性树脂的方法。它包括至少两个步骤，包括将模塑产品浸入碱性水溶液中的步骤和随后将模塑产品浸入水中的步骤。该方法不需要在热分解中所需要的高温，并且不产生任何废气，并且仅消耗小的能量。

8. 发明授权

US5464576A Method of making isotropic bonded magnet 失效
标题翻译：制造各向同性粘结磁铁的方法
公开(公告)号：US5464576A
公开(公告)日：1995-11-07
申请号：US875290
申请日：1992-04-29
申请人： Fumitoshi Yamashita , Masami Wada
发明人： Fumitoshi Yamashita , Masami Wada
IPC分类号： H01F1/057 , H01F41/02 , H02K15/03 , H05B1/00
CPC分类号： H02K15/03 , H01F1/0576 , H01F41/0266
摘要： A method of manufacturing an inorganic bonding type rapidly solidified magnet, which is formed by energizing and sintering, after an instantaneous mutual attractive force has been applied intermittently in accordance with the electromagnetic force upon a thin piece shaped rapidly solidified magnet powder in a mold. A thin piece shaped inorganic glass having a thermal expansion ratio 9.times.10.sup.-6 /.degree. C. or less is used as the inorganic coupling agent. The magnet of the present invention having a ring shape, is effective to improve reliability as a rotor magnet in consideration of size, safety, mechanical strength, etc. of the present magnet formed in a ring shape. The electric resistance of the magnet is 10.sup.-3 through 10.sup.-1 .OMEGA.cm and is desirable as a rotor magnet of a PWM driving brushless electric motor.
摘要翻译：通过在模具中的薄片状快速凝固的磁体粉末上的电磁力间歇地施加瞬时相互吸引力之后通过激发和烧结形成的无机键合型快速凝固磁体的制造方法。使用热膨胀率为9×10 -6 /℃以下的薄片状无机玻璃作为无机偶联剂。考虑到形成为环状的本磁体的尺寸，安全性，机械强度等，具有环形的本发明的磁体对于提高作为转子磁体的可靠性是有效的。磁体的电阻为10-3〜10-1ΩEGA·cm，作为PWM驱动无刷电动机的转子磁铁是理想的。

9. 发明授权

US5100604A Method for making a resin-bonded magnet comprising a ferromagnetic material and a resin composition 失效
标题翻译：用于制造包含纤维素材料和树脂组合物的树脂粘结磁体的方法
公开(公告)号：US5100604A
公开(公告)日：1992-03-31
申请号：US632654
申请日：1990-12-26
申请人： Fumitoshi Yamashita , Shuichi Kitayama , Masami Wada
发明人： Fumitoshi Yamashita , Shuichi Kitayama , Masami Wada
IPC分类号： H01F1/08 , C08L101/00 , C08L101/02 , C22C38/00 , H01F1/057
CPC分类号： H01F1/0578
摘要： A method for making a resin-bonded magnet of flaky pieces of a ferromagnetic alloy and a resin composition which comprises providing composite granules obtained from a mixture of magnetically isotropic pieces of an Fe-B-R alloy, in which R is Nd and/or Pr, in the form of fine pieces and a resin composition comprised of at least one film-forming polymer having a functional group reactive with isocyanate groups and a blocked isocyanate. The granules are compression molded to obtain a green compact and subsequently thermally treated to allow reaction between the at least one film-forming polymer and the isocyanate by dissociation of the blocking groups by heating, thereby obtaining a resin-bonded magnet.
摘要翻译：一种制造铁磁性合金薄片状的树脂粘结磁铁和树脂组合物的方法，该方法包括提供由R为Nd和/或Pr的Fe-BR合金的磁各向同性片的混合物获得的复合颗粒，以细碎片的形式和由至少一种具有与异氰酸酯基反应的官能团的成膜聚合物和封端的异氰酸酯组成的树脂组合物。将颗粒压塑以获得生坯，随后热处理，以通过加热解封闭基团，使至少一种成膜聚合物与异氰酸酯反应，从而获得树脂粘结磁体。

10. 发明授权

US4689163A Resin-bonded magnet comprising a specific type of ferromagnetic powder dispersed in a specific type of resin binder 失效
标题翻译：包含分散在特定类型的树脂粘合剂中的特定类型的铁磁性粉末的树脂粘合磁体
公开(公告)号：US4689163A
公开(公告)日：1987-08-25
申请号：US937424
申请日：1986-12-03
申请人： Fumitoshi Yamashita , Masami Wada , Shuichi Kitayama
发明人： Fumitoshi Yamashita , Masami Wada , Shuichi Kitayama
IPC分类号： H01F1/26 , C08K3/10 , H01F1/057 , C08B35/04
CPC分类号： H01F1/0578 , C08K3/10
摘要： A resin-bonded magnet comprising particles of a melt-quenched ferromagnetic material of the formula, Fe-B-R, in which R represents Nd and/or Pr, and a binder resin dispersing the particles throughout the resin and fixing the particles. The binder resin comprises an oligomer having at least an alcoholic hydroxyl group and a block isocyanate with an active hydrogen-bearing compound. The resin-bonded magnet is preferably used in the from of a cylinder, ring or column having a defined outer diameter and a defined density when applied to permanent magnet motors.
摘要翻译：一种树脂粘结磁体，其包含下式的熔融淬火铁磁材料Fe-B-R（其中R表示Nd和/或Pr）的颗粒，以及将颗粒分散在整个树脂中并固定颗粒的粘合剂树脂。粘合剂树脂包含至少具有醇羟基的低聚物和具有活性含氢化合物的嵌段异氰酸酯。当施加到永磁电动机上时，树脂粘结磁体优选地用于具有限定的外径和确定的密度的圆筒，环或柱。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式