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

US09350203B2 Rare earth sintered magnet, method for producing the same, motor, and automobile 有权
标题翻译：稀土烧结磁体，制造方法，电动机，汽车等
公开(公告)号：US09350203B2
公开(公告)日：2016-05-24
申请号：US13637247
申请日：2011-03-30
申请人： Fumitaka Baba , Satoshi Tanaka , Makoto Iwasaki , Chikara Ishizaka
发明人： Fumitaka Baba , Satoshi Tanaka , Makoto Iwasaki , Chikara Ishizaka
IPC分类号： H01F7/02 , H02K1/02 , C22C38/00 , C22C38/14 , H01F1/057 , H01F41/02 , H02K21/16
CPC分类号： H02K1/02 , C22C38/005 , C22C38/14 , H01F1/0577 , H01F41/0293 , H02K21/16
摘要： Provided is a rare earth sintered magnet 10 comprising a group of main phase grains 2 each composed of an R-T-B-based rare earth magnet comprising a core 4 and a shell 6 covering the core 4, wherein a thickness of the shell 6 is 500 nm or less, R includes a light rare earth element and a heavy rare earth element, and a Zr compound 8 is present in a grain boundary phase 7 of the group of main phase grains 2 and/or the shell 6. Also provided are a motor comprising the rare earth sintered magnet 10 and an automobile comprising the motor.
摘要翻译：本发明提供一种稀土类烧结磁体10，其包含一组主相颗粒2，每个主相颗粒2由包括芯4的RTB基稀土磁体和覆盖芯4的壳体6组成，其中壳体6的厚度为500nm或较少的R包括轻稀土元素和重稀土元素，并且Zr化合物8存在于主相晶粒2和/或壳6组的晶界相7中。还提供了一种马达，其包括稀土烧结磁体10和包含电动机的汽车。

2. 发明授权

US08823478B2 Rare earth sintered magnet, method for producing same, motor and automobile 有权
标题翻译：稀土烧结磁体，其制造方法，电机和汽车
公开(公告)号：US08823478B2
公开(公告)日：2014-09-02
申请号：US13637424
申请日：2011-03-28
申请人： Satoshi Tanaka , Fumitaka Baba , Makoto Iwasaki , Chikara Ishizaka
发明人： Satoshi Tanaka , Fumitaka Baba , Makoto Iwasaki , Chikara Ishizaka
IPC分类号： H01F7/02
CPC分类号： H01F41/0293 , B22F2207/01 , B60L11/123 , B60L2220/14 , B60L2220/16 , B60L2220/50 , C22C38/002 , C22C38/005 , H01F1/0577 , H01F41/005 , H02K1/02 , H02K1/04 , H02K1/276 , Y02T10/6217 , Y02T10/641 , Y02T10/7077 , Y10T428/32
摘要： A rare earth sintered magnet 10 including a magnet body that includes a rare earth compound, and a protective layer on the magnet body, having a first layer and a second layer in that order from the magnet body side, wherein the surface portion of the magnet body has a higher heavy rare earth element content than the interior of the magnet body that is surrounded by the surface portion, the first layer includes a rare earth oxide, the mass ratio of the heavy rare earth element being 1 or greater with respect to the light rare earth element, and the second layer includes an oxide containing iron and/or boron which is different from the rare earth oxide, the second layer having a lower rare earth oxide content than the first layer.
摘要翻译：包括稀土类化合物的磁体和磁铁体上的保护层的稀土类烧结磁体10具有从磁铁体侧依次的第一层和第二层，其中磁体的表面部分本体具有比由表面部包围的磁体的内部更高的重稀土元素含量，第一层包括稀土类氧化物，重稀土类元素的质量比相对于轻稀土元素，第二层包括与稀土氧化物不同的含有铁和/或硼的氧化物，第二层具有比第一层低的稀土氧化物含量。

3. 发明申请

US20130049910A1 RARE EARTH SINTERED MAGNET, METHOD FOR PRODUCING SAME, MOTOR AND AUTOMOBILE 有权
标题翻译：稀土烧结磁铁，其生产方法，电机和汽车
公开(公告)号：US20130049910A1
公开(公告)日：2013-02-28
申请号：US13637424
申请日：2011-03-28
申请人： Satoshi Tanaka , Fumitaka Baba , Makoto Iwasaki , Chikara Ishizaka
发明人： Satoshi Tanaka , Fumitaka Baba , Makoto Iwasaki , Chikara Ishizaka
IPC分类号： H01F7/02 , H01F41/02 , C23C8/10
CPC分类号： H01F41/0293 , B22F2207/01 , B60L11/123 , B60L2220/14 , B60L2220/16 , B60L2220/50 , C22C38/002 , C22C38/005 , H01F1/0577 , H01F41/005 , H02K1/02 , H02K1/04 , H02K1/276 , Y02T10/6217 , Y02T10/641 , Y02T10/7077 , Y10T428/32
摘要： A rare earth sintered magnet 10 including a magnet body that includes a rare earth compound, and a protective layer on the magnet body, having a first layer and a second layer in that order from the magnet body side, wherein the surface portion of the magnet body has a higher heavy rare earth element content than the interior of the magnet body that is surrounded by the surface portion, the first layer includes a rare earth oxide, the mass ratio of the heavy rare earth element being 1 or greater with respect to the light rare earth element, and the second layer includes an oxide containing iron and/or boron which is different from the rare earth oxide, the second layer having a lower rare earth oxide content than the first layer.
摘要翻译：包括稀土类化合物的磁体和磁铁体上的保护层的稀土类烧结磁体10具有从磁铁体侧依次的第一层和第二层，其中磁体的表面部分本体具有比由表面部包围的磁体的内部更高的重稀土元素含量，第一层包括稀土类氧化物，重稀土类元素的质量比相对于轻稀土元素，第二层包括与稀土氧化物不同的含有铁和/或硼的氧化物，第二层具有比第一层低的稀土氧化物含量。

4. 发明申请

US20130026870A1 RARE EARTH SINTERED MAGNET, METHOD FOR PRODUCING THE SAME, MOTOR, AND AUTOMOBILE 有权
标题翻译：稀土烧结磁铁，其制造方法，电机和汽车
公开(公告)号：US20130026870A1
公开(公告)日：2013-01-31
申请号：US13637247
申请日：2011-03-30
申请人： Fumitaka Baba , Satoshi Tanaka , Makoto Iwasaki , Chikara Ishizaka
发明人： Fumitaka Baba , Satoshi Tanaka , Makoto Iwasaki , Chikara Ishizaka
IPC分类号： H01F7/02 , H02K21/00 , B05D5/00
CPC分类号： H02K1/02 , C22C38/005 , C22C38/14 , H01F1/0577 , H01F41/0293 , H02K21/16
摘要： Provided is a rare earth sintered magnet 10 comprising a group of main phase grains 2 each composed of an R-T-B-based rare earth magnet comprising a core 4 and a shell 6 covering the core 4, wherein a thickness of the shell 6 is 500 nm or less, R includes a light rare earth element and a heavy rare earth element, and a Zr compound 8 is present in a grain boundary phase 7 of the group of main phase grains 2 and/or the shell 6. Also provided are a motor comprising the rare earth sintered magnet 10 and an automobile comprising the motor.
摘要翻译：本发明提供一种稀土类烧结磁体10，其包含一组主相颗粒2，每个主相颗粒2由包括芯4的RTB基稀土磁体和覆盖芯4的壳体6组成，其中壳体6的厚度为500nm或较少的R包括轻稀土元素和重稀土元素，并且Zr化合物8存在于主相晶粒2和/或壳6组的晶界相7中。还提供了一种马达，其包括稀土烧结磁体10和包含电动机的汽车。

5. 发明申请

US20130009503A1 SINTERED MAGNET, MOTOR, AUTOMOBILE, AND METHOD FOR PRODUCING SINTERED MAGNET 有权
标题翻译：烧结磁体，电动机，汽车和生产烧结磁体的方法
公开(公告)号：US20130009503A1
公开(公告)日：2013-01-10
申请号：US13384896
申请日：2011-03-29
申请人： Makoto Iwasaki , Ryota Kunieda , Fumitaka Baba , Satoshi Tanaka , Yoshinori Fujikawa
发明人： Makoto Iwasaki , Ryota Kunieda , Fumitaka Baba , Satoshi Tanaka , Yoshinori Fujikawa
IPC分类号： H02K21/00 , H01F41/02 , H01F7/02
CPC分类号： H01F41/0293 , B22F2207/01 , C21D6/00 , C22C38/002 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/14 , C22C38/16 , H01F1/0577 , H01F7/02
摘要： The present invention provides a sintered magnet having superior residual magnetic flux density and coercive force. The sintered magnet of the present invention comprises a group of R-T-B based rare earth magnet crystal particles 2 having a core 4 and a shell 6 covering the core 4, the mass ratio of a heavy rare earth element in the shell 6 is higher than the mass ratio of a heavy rare earth element in the core 4, and the thickest part of the shell 6 in the crystal particles 2 faces a grain boundary triple junction 1. A lattice defect 3 is formed between the core 4 and the shell 6.
摘要翻译：本发明提供了具有优异的剩余磁通密度和矫顽力的烧结磁体。本发明的烧结磁体包括一组具有核心4的RTB基稀土磁体晶体颗粒2和覆盖核心4的壳体6，壳体6中的重稀土元素的质量比高于质量芯4中的重稀土元素的比例和晶体颗粒2中的壳6的最厚部分面对晶界三重结1.在芯4和壳6之间形成晶格缺陷3。

6. 发明申请

US20100129538A1 PROCESS FOR PRODUCING MAGNET 审中-公开
标题翻译：生产磁铁的工艺
公开(公告)号：US20100129538A1
公开(公告)日：2010-05-27
申请号：US12593324
申请日：2008-03-31
申请人： Ryota Kunieda , Makoto Nakane , Fumitaka Baba , Makoto Iwasaki , Satoshi Tanaka , Hideki Nakamura
发明人： Ryota Kunieda , Makoto Nakane , Fumitaka Baba , Makoto Iwasaki , Satoshi Tanaka , Hideki Nakamura
IPC分类号： H01F41/02 , B05D5/00
CPC分类号： C22C33/0278 , B22F2998/00 , B22F2998/10 , B22F2999/00 , C22C2202/02 , H01F1/0577 , H01F41/0293 , B22F2003/247 , B22F2003/248 , B22F9/04 , B22F3/02 , B22F3/1035 , B22F3/24 , B22F2003/242 , B22F1/0074 , B22F2207/01 , B22F2202/05
摘要： The invention provides a process for producing a magnet that not only allows satisfactory Br and HcJ values to be achieved but can also yield a magnet with a sufficiently large squareness ratio. The process for producing a magnet according to the invention is characterized by comprising a first step in which a heavy rare earth compound containing a heavy rare earth element is adhered onto a rare earth magnet sintered compact, and a second step in which the heavy rare earth compound-adhered sintered compact is subjected to heat treatment. The heavy rare earth compound is a hydride of the heavy rare earth element.
摘要翻译：本发明提供一种制造磁体的方法，其不仅能够实现令人满意的Br和HcJ值，而且还可以产生足够大的矩形比的磁体。根据本发明的制造磁体的方法的特征在于包括第一步骤，其中将含有重稀土元素的重稀土化合物粘附到稀土磁体烧结体上，第二步是重稀土复合附着的烧结体进行热处理。重稀土化合物是重稀土元素的氢化物。

7. 发明授权

US09154004B2 Rare earth sintered magnet and motor 有权
标题翻译：稀土烧结磁体和电机
公开(公告)号：US09154004B2
公开(公告)日：2015-10-06
申请号：US13390016
申请日：2011-03-04
申请人： Makoto Iwasaki , Fumitaka Baba , Satoshi Tanaka , Hideki Sasaki , Takahide Kurahashi , Hitoshi Maro , Keiichi Morimoto , Seiichi Endo
发明人： Makoto Iwasaki , Fumitaka Baba , Satoshi Tanaka , Hideki Sasaki , Takahide Kurahashi , Hitoshi Maro , Keiichi Morimoto , Seiichi Endo
IPC分类号： H02K15/03 , H02K15/12 , H02K15/16 , H01F7/02 , H01F41/02 , H02K1/02 , B22F3/24 , B22F9/02 , B22F9/04 , C22C33/02 , C22C38/00 , C22C38/06 , C22C38/10 , C22C38/16 , H01F1/057
CPC分类号： H02K1/02 , B22F3/24 , B22F9/023 , B22F9/04 , B22F2999/00 , C22C33/0278 , C22C38/002 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/16 , H01F1/0577 , H01F7/02 , H01F41/0293 , H02K15/03 , B22F2207/01
摘要： In the rare earth sintered magnet, the ratio of R2 to the sum of R1 and R2 that are contained in crystal grain boundaries surrounding the crystal grains in the rare earth sintered magnet body is higher than the ratio of R2 to the sum of R1 and R2 in the crystal grains, and the concentration of R2 increases from the central portion of the rare earth sintered magnet body toward the surface of the rare earth sintered magnet body. In addition, the degree of unevenness in residual magnetic flux density on the surface of the rare earth sintered magnet body is smaller than 3.0%.
摘要翻译：在稀土烧结磁体中，与稀土类烧结磁体的晶粒周围的晶粒边界所包含的R 2与R 2与R 2之和的比值R2高于R1与R2的和的比例在晶粒中，R2的浓度从稀土类烧结磁体的中央向稀土类烧结体的表面增加。此外，稀土烧结磁体的表面残留磁通密度的不均匀度小于3.0％。

8. 发明申请

US20120139388A1 RARE EARTH SINTERED MAGNET AND MOTOR 有权
标题翻译：稀土烧结磁铁和电机
公开(公告)号：US20120139388A1
公开(公告)日：2012-06-07
申请号：US13390016
申请日：2011-03-04
申请人： Makoto Iwasaki , Fumitaka Baba , Satoshi Tanaka , Hideki Sasaki , Takahide Kurahashi , Hitoshi Maro , Keiichi Morimoto , Seiichi Endo
发明人： Makoto Iwasaki , Fumitaka Baba , Satoshi Tanaka , Hideki Sasaki , Takahide Kurahashi , Hitoshi Maro , Keiichi Morimoto , Seiichi Endo
IPC分类号： H02K1/12 , H02K1/22 , H01F7/02
CPC分类号： H02K1/02 , B22F3/24 , B22F9/023 , B22F9/04 , B22F2999/00 , C22C33/0278 , C22C38/002 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/16 , H01F1/0577 , H01F7/02 , H01F41/0293 , H02K15/03 , B22F2207/01
摘要： In the rare earth sintered magnet, the ratio of R2 to the sum of R1 and R2 that are contained in crystal grain boundaries surrounding the crystal grains in the rare earth sintered magnet body is higher than the ratio of R2 to the sum of R1 and R2 in the crystal grains, and the concentration of R2 increases from the central portion of the rare earth sintered magnet body toward the surface of the rare earth sintered magnet body. In addition, the degree of unevenness in residual magnetic flux density on the surface of the rare earth sintered magnet body is smaller than 3.0%.
摘要翻译：在稀土烧结磁体中，与稀土类烧结磁体的晶粒周围的晶粒边界所包含的R 2与R 2与R 2之和的比值R2高于R1与R2的和的比例在晶粒中，R2的浓度从稀土类烧结磁体的中央向稀土类烧结体的表面增加。此外，稀土烧结磁体的表面残留磁通密度的不均匀度小于3.0％。

9. 发明授权

US09548157B2 Sintered magnet, motor, automobile, and method for producing sintered magnet 有权
标题翻译：烧结磁体，电动机，汽车以及烧结磁体的制造方法
公开(公告)号：US09548157B2
公开(公告)日：2017-01-17
申请号：US13384896
申请日：2011-03-29
申请人： Makoto Iwasaki , Ryota Kunieda , Fumitaka Baba , Satoshi Tanaka , Yoshinori Fujikawa
发明人： Makoto Iwasaki , Ryota Kunieda , Fumitaka Baba , Satoshi Tanaka , Yoshinori Fujikawa
IPC分类号： H01F41/00 , H01F41/02 , C21D6/00 , C22C38/00 , C22C38/06 , C22C38/10 , C22C38/14 , C22C38/16 , H01F7/02 , H01F1/057
CPC分类号： H01F41/0293 , B22F2207/01 , C21D6/00 , C22C38/002 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/14 , C22C38/16 , H01F1/0577 , H01F7/02
摘要： The present invention provides a sintered magnet having superior residual magnetic flux density and coercive force. The sintered magnet of the present invention comprises a group of R-T-B based rare earth magnet crystal particles 2 having a core 4 and a shell 6 covering the core 4, the mass ratio of a heavy rare earth element in the shell 6 is higher than the mass ratio of a heavy rare earth element in the core 4, and the thickest part of the shell 6 in the crystal particles 2 faces a grain boundary triple junction 1. A lattice defect 3 is formed between the core 4 and the shell 6.
摘要翻译：本发明提供了具有优异的剩余磁通密度和矫顽力的烧结磁体。本发明的烧结磁体包括一组具有核心4的RTB基稀土磁体晶体颗粒2和覆盖核心4的壳体6，壳体6中的重稀土元素的质量比高于质量芯4中的重稀土元素的比例和晶体颗粒2中的壳6的最厚部分面对晶界三重结1.在芯4和壳6之间形成晶格缺陷3。

10. 发明申请

US20060207689A1 Method for producing sintered rare earth element magnet 审中-公开
标题翻译：烧结稀土元素磁体的制造方法
公开(公告)号：US20060207689A1
公开(公告)日：2006-09-21
申请号：US10541724
申请日：2004-10-28
申请人： Makoto Iwasaki , Chikara Ishizaka
发明人： Makoto Iwasaki , Chikara Ishizaka
IPC分类号： H01F41/00
CPC分类号： H01F41/0266 , H01F1/0573 , H01F1/0577
摘要： The strength of a compacted body is enhanced without deteriorating the magnetic properties. Additive metal powder is added to raw alloy containing a rare earth element, a transition metal element and boron to obtain a mixture, the mixture is compacted to obtain a compacted body, and the compacted body is sintered to obtain a rare earth sintered magnet. The additive metal powder is at least one species selected from the group consisting of powders of Al, Ni, Zr, Mn, Fe, Co, Cu, Zn, Ag, Sn and Bi. When adopting a process of crushing the raw alloy and a process of pulverizing the crushed raw alloy, the additive metal powder is added after the crushing process or after the pulverizing process. The amount of the additive metal powder added is 0.01 mass % or more. The additive metal powder is preferred to be platy metal alloy and, in this case, the thickness thereof is set to be 10 μm or less.
摘要翻译：增强了压实体的强度，而不会降低磁特性。将添加金属粉末添加到含有稀土元素，过渡金属元素和硼的原料合金中，得到混合物，将其压实成压实体，将该压实体烧结，得到稀土类烧结磁体。添加金属粉末是选自Al，Ni，Zr，Mn，Fe，Co，Cu，Zn，Ag，Sn和Bi的粉末中的至少一种。当采用破碎原料合金的过程和粉碎的原始合金的粉碎过程时，在粉碎过程之后或粉碎过程之后添加添加金属粉末。添加金属粉末的添加量为0.01质量％以上。添加金属粉末优选为板状金属合金，在这种情况下，其厚度设定为10μm以下。

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