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1.发明授权Radial anisotropic sintered magnet and its production method, magnet rotor using sintered magnet, and motor using magnet rotor 有权径向各向异性烧结磁体及其制造方法，使用烧结磁体的磁体转子和使用磁体转子的电动机公开(公告)号：US07618496B2
公开(公告)日：2009-11-17
申请号：US11229660
申请日：2005-09-20
申请人： Koji Sato , Mitsuo Kawabata , Takehisa Minowa
发明人： Koji Sato , Mitsuo Kawabata , Takehisa Minowa
CPC分类号： H01F7/0268 , H01F41/0266 , H01F41/028
摘要： A radial anisotropic sintered magnet formed into a cylindrical shape includes a portion oriented in directions tilted at an angle of 30° or more from radial directions, the portion being contained in the magnet at a volume ratio in a range of 2% or more and 50% or less, and a portion oriented in radial directions or in directions tilted at an angle less than 30° from radial directions, the portion being the rest of the total volume of the magnet. The radial anisotropic sintered magnet has excellent magnet characteristics without occurrence of cracks in the steps of sintering and cooling for aging, even if the magnet has a shape of a small ratio between an inner diameter and an outer diameter.
摘要翻译： 形成为圆筒状的径向各向异性烧结磁体包括从径向倾斜30°以上的方向取向的部分，磁体中的部分以2％以上的体积比容纳在50％以上 ％以下的部分，以及沿径向方向或以与径向小于30°的角度倾斜的方向的部分，该部分是磁体总体积的其余部分。 径向各向异性烧结磁体即使磁体具有内径和外径之间的小比例的形状，也具有优异的磁体特性，而不会在老化烧结和冷却步骤中产生裂纹。
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2.发明授权Radial anisotropic sintered magnet and its production method, magnet rotor using sintered magnet, and motor using magnet rotor 有权径向各向异性烧结磁体及其制造方法，使用烧结磁体的磁体转子和使用磁体转子的电动机公开(公告)号：US07948135B2
公开(公告)日：2011-05-24
申请号：US12574046
申请日：2009-10-06
申请人： Koji Sato , Mitsuo Kawabata , Takehisa Minowa
发明人： Koji Sato , Mitsuo Kawabata , Takehisa Minowa
CPC分类号： H01F7/0268 , H01F41/0266 , H01F41/028
摘要： A radial anisotropic sintered magnet formed into a cylindrical shape includes a portion oriented in directions tilted at an angle of 30° or more from radial directions, the portion being contained in the magnet at a volume ratio in a range of 2% or more and 50% or less, and a portion oriented in radial directions or in directions tilted at an angle less than 30° from radial directions, the portion being the rest of the total volume of the magnet. The radial anisotropic sintered magnet has excellent magnet characteristics without occurrence of cracks in the steps of sintering and cooling for aging, even if the magnet has a shape of a small ratio between an inner diameter and an outer diameter.
摘要翻译： 形成为圆筒状的径向各向异性烧结磁体包括从径向倾斜30°以上的方向取向的部分，磁体中的部分以2％以上的体积比容纳在50％以上 ％以下的部分，以及沿径向方向或以与径向小于30°的角度倾斜的方向的部分，该部分是磁体总体积的其余部分。 径向各向异性烧结磁体即使磁体具有内径和外径之间的小比例的形状，也具有优异的磁体特性，而不会在老化烧结和冷却步骤中产生裂纹。
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3.发明申请公开(公告)号：US20060022782A1
公开(公告)日：2006-02-02
申请号：US10526012
申请日：2003-08-27
申请人： Koji Sato , Mitsuo Kawabata , Takehisa Minowa
发明人： Koji Sato , Mitsuo Kawabata , Takehisa Minowa
IPC分类号： H01F7/02
CPC分类号： H01F41/028 , H01F7/021 , H02K15/03
摘要： A radially anisotropic ring magnet endowed with good magnetic characteristics and having throughout the magnet an angle of 80 to 1000 between a center axis thereof and a radial anisotropy imparting direction is manufactured by a pressing operation.
摘要翻译： 通过按压操作制造具有良好磁特性的径向各向异性环形磁体，并且通过按压操作来制造整个磁体，其中心轴和径向各向异性赋予方向之间的角度为80至1000。
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4.发明申请RADIAL ANISOTROPIC SINTERED MAGNET AND ITS PRODUCTION METHOD, MAGNET ROTOR USING SINTERED MAGNET, AND MOTOR USING MAGNET ROTOR 有权径向异相烧结磁体及其制造方法，使用烧结磁体的电机转子和使用磁铁转子的电动机公开(公告)号：US20100019587A1
公开(公告)日：2010-01-28
申请号：US12574046
申请日：2009-10-06
申请人： Koji SATO , Mitsuo Kawabata , Takehisa Minowa
发明人： Koji SATO , Mitsuo Kawabata , Takehisa Minowa
CPC分类号： H01F7/0268 , H01F41/0266 , H01F41/028
摘要： A radial anisotropic sintered magnet formed into a cylindrical shape includes a portion oriented in directions tilted at an angle of 30° or more from radial directions, the portion being contained in the magnet at a volume ratio in a range of 2% or more and 50% or less, and a portion oriented in radial directions or in directions tilted at an angle less than 30° from radial directions, the portion being the rest of the total volume of the magnet. The radial anisotropic sintered magnet has excellent magnet characteristics without occurrence of cracks in the steps of sintering and cooling for aging, even if the magnet has a shape of a small ratio between an inner diameter and an outer diameter.
摘要翻译： 形成为圆筒状的径向各向异性烧结磁体包括从径向倾斜30°以上的方向取向的部分，磁体中的部分以2％以上的体积比容纳在50％以上 ％以下的部分，以及沿径向方向或以与径向小于30°的角度倾斜的方向的部分，该部分是磁体总体积的其余部分。 径向各向异性烧结磁体即使磁体具有内径和外径之间的小比例的形状，也具有优异的磁体特性，而不会在老化烧结和冷却步骤中产生裂纹。
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公开(公告)号：US20060024192A1
公开(公告)日：2006-02-02
申请号：US11229660
申请日：2005-09-20
申请人： Koji Sato , Mitsuo Kawabata , Takehisa Minowa
发明人： Koji Sato , Mitsuo Kawabata , Takehisa Minowa
IPC分类号： B22F3/10
CPC分类号： H01F7/0268 , H01F41/0266 , H01F41/028
摘要： A radial anisotropic sintered magnet formed into a cylindrical shape includes a portion oriented in directions tilted at an angle of 30° or more from radial directions, the portion being contained in the magnet at a volume ratio in a range of 2% or more and 50% or less, and a portion oriented in radial directions or in directions tilted at an angle less than 30° from radial directions, the portion being the rest of the total volume of the magnet. The radial anisotropic sintered magnet has excellent magnet characteristics without occurrence of cracks in the steps of sintering and cooling for aging, even if the magnet has a shape of a small ratio between an inner diameter and an outer diameter.
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公开(公告)号：US20070171017A1
公开(公告)日：2007-07-26
申请号：US11679710
申请日：2007-02-27
申请人： Koji SATO , Mitsuo Kawabata , Takehisa Minowa
发明人： Koji SATO , Mitsuo Kawabata , Takehisa Minowa
IPC分类号： H01F3/00
CPC分类号： H01F41/028 , H01F7/021 , H02K15/03
摘要： A radially anisotropic ring magnet endowed with good magnetic characteristics and having throughout the magnet an angle of 80 to 100° between a center axis thereof and a radial anisotropy imparting direction is manufactured by a pressing operation.
摘要翻译： 通过按压操作制造具有良好磁特性的径向各向异性环形磁体，并且通过按压操作来制造整个磁体，其中心轴和径向各向异性赋予方向之间的角度为80°至100°。
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7.发明授权公开(公告)号：US07201809B2
公开(公告)日：2007-04-10
申请号：US10526012
申请日：2003-08-27
申请人： Koji Sato , Mitsuo Kawabata , Takehisa Minowa
发明人： Koji Sato , Mitsuo Kawabata , Takehisa Minowa
IPC分类号： H01F1/08
CPC分类号： H01F41/028 , H01F7/021 , H02K15/03
摘要： A radially anisotropic ring magnet endowed with good magnetic characteristics and having throughout the magnet an angle of 80 to 100° between a center axis thereof and a radial anisotropy imparting direction is manufactured by a pressing operation.
摘要翻译： 通过按压操作制造具有良好磁特性的径向各向异性环形磁体，并且通过按压操作来制造整个磁体，其中心轴和径向各向异性赋予方向之间的角度为80°至100°。
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公开(公告)号：US06984270B2
公开(公告)日：2006-01-10
申请号：US10284384
申请日：2002-10-31
申请人： Koji Sato , Mitsuo Kawabata , Takehisa Minowa
发明人： Koji Sato , Mitsuo Kawabata , Takehisa Minowa
IPC分类号： H01F1/032
CPC分类号： H01F7/0268 , H01F41/0266 , H01F41/028
摘要： A radial anisotropic sintered magnet formed into a cylindrical shape includes a portion oriented in directions tilted at an angle of 30° or more from radial directions, the portion being contained in the magnet at a volume ratio in a range of 2% or more and 50% or less, and a portion oriented in radial directions or in directions tilted at an angle less than 30° from radial directions, the portion being the rest of the total volume of the magnet. The radial anisotropic sintered magnet has excellent magnet characteristics without occurrence of cracks in the steps of sintering and cooling for aging, even if the magnet has a shape of a small ratio between an inner diameter and an outer diameter.
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