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1. 发明授权

US07551051B2 Ring magnet and method of manufacturing the magnet 有权
标题翻译：环形磁铁及其制造方法
公开(公告)号：US07551051B2
公开(公告)日：2009-06-23
申请号：US10546827
申请日：2003-10-29
申请人： Yoshikazu Ugai , Taizo Iwami , Shuichi Takahama , Yuji Nakahara , Jinichi Furukawa
发明人： Yoshikazu Ugai , Taizo Iwami , Shuichi Takahama , Yuji Nakahara , Jinichi Furukawa
IPC分类号： H01F7/02 , H01F1/057
CPC分类号： H01F41/0253 , H02K15/03
摘要： Radially oriented ring-shaped preliminarily molded pieces of a ring magnet are stacked in an axial direction to form a ring-shaped molded body, in which end faces of the ring-shaped preliminarily molded pieces are bonded together. This ring-shaped molded body is sintered and heat-treated to produce the ring magnet. Ring magnets which are less susceptible to deterioration of magnetic properties due to a disturbance of magnetic orientation near lamination boundary surfaces are produced. The invention provides a method of manufacturing such ring magnets with high efficiency.
摘要翻译：环状磁体的径向取向环状预成型片在轴向上层叠，形成环状成型体，环状的预成型片的端面粘接在一起。将该环状成型体烧结并进行热处理以制造环形磁铁。产生由于层叠边界面附近的磁性取向的干扰而不易受磁特性劣化的环形磁体。本发明提供一种以高效率制造这种环形磁体的方法。

2. 发明申请

US20060158292A1 Ring magnet and method of manufacturing the magnet 有权
标题翻译：环形磁铁及其制造方法
公开(公告)号：US20060158292A1
公开(公告)日：2006-07-20
申请号：US10546827
申请日：2003-10-29
申请人： Yoshikazu Ugai , Taizo Iwami , Shuichi Takahama , Yuji Nakahara , Jinichi Furukawa
发明人： Yoshikazu Ugai , Taizo Iwami , Shuichi Takahama , Yuji Nakahara , Jinichi Furukawa
IPC分类号： H01F7/02
CPC分类号： H01F41/0253 , H02K15/03
摘要： Radially oriented ring-shaped preliminarily molded pieces of a ring magnet are stacked in an axial direction to form a ring-shaped molded body, in which end faces of the ring-shaped preliminarily molded pieces are bonded together. This ring-shaped molded body is sintered and heat-treated to produce the ring magnet. Ring magnets which are less susceptible to deterioration of magnetic properties due to a disturbance of magnetic orientation near lamination boundary surfaces are produced. The invention provides a method of manufacturing such ring magnet with high efficiency.
摘要翻译：环状磁体的径向取向环状预成型片在轴向上层叠，形成环状成型体，环状的预成型片的端面粘接在一起。将该环状成型体烧结并进行热处理以制造环形磁铁。产生由于层叠边界面附近的磁性取向的干扰而不易受磁特性劣化的环形磁体。本发明提供一种以高效率制造这种环形磁体的方法。

3. 发明申请

US20050208164A1 Permanent magnet forming device 有权
标题翻译：永磁成型装置
公开(公告)号：US20050208164A1
公开(公告)日：2005-09-22
申请号：US10506531
申请日：2003-04-18
申请人： Yoshikazu Ugai , Taizo Iwami , Yuji Nakahara , Yasuo Ozeki
发明人： Yoshikazu Ugai , Taizo Iwami , Yuji Nakahara , Yasuo Ozeki
IPC分类号： B22F3/02 , B22F3/03 , H01F41/02 , B28B1/00
CPC分类号： B22F3/03 , B22F3/02 , B22F2999/00 , H01F41/0266 , H01F41/0273 , B22F2202/05
摘要： This invention relates to a permanent magnet molding apparatus and has as an object an improvement in productivity and reliability thereof. This invention includes a transferable metal die unit (7) including a die having a cavity of a desired cross-sectional shape in which magnet molding material powder is filled, the cavity extending in groovelike form in a specific direction on a surface of the die, a lid member placed to cover the cavity, and a pair of punches having the same cross-sectional shape as the cavity, the punches being capable of fitting in the cavity from both ends thereof and made slidable in directions in which the punches go into contact with and become separated from the magnet molding material powder, pressurizing means (17, 18) for holding the metal die unit (7) which has been transferred with the magnet molding material powder filled in the cavity and for pressurizing the magnet molding material powder by driving the two punches such that the punches slide in their approaching directions, and magnetic field generating means (21, 22) for magnetizing the pressurized magnet molding material powder while applying a magnetic field thereto in a direction perpendicular to a direction of pressurization.
摘要翻译：本发明涉及一种永磁式成型装置，其目的在于提高其生产率和可靠性。本发明包括可转移金属模具单元（7），其包括具有期望的横截面形状的空腔的模具，其中填充有磁性成型材料粉末，所述空腔沿模具的表面沿特定方向以槽状形式延伸，设置为覆盖空腔的盖构件以及具有与空腔相同的横截面形状的一对冲头，所述冲头能够从其两端安装在空腔中并且可在冲头接触的方向上滑动与磁体成型材料粉末分离，并且用于保持金属模具单元（7）的加压装置（17,18），该金属模具单元（7）已经被填充在空腔中的磁性成型材料粉末转移并且用于通过驱动两个冲头，使得冲头在其接近的方向上滑动;以及磁场产生装置（21,22），用于磁化加压磁体成型材料同时在与加压方向垂直的方向上施加磁场。

4. 发明申请

US20060062683A1 Apparatus for manufacturing ring-shaped powder compact and method of manufacturing sintered ring magnet 有权
标题翻译：用于制造环形粉末压块的装置和制造烧结环磁体的方法
公开(公告)号：US20060062683A1
公开(公告)日：2006-03-23
申请号：US11232025
申请日：2005-09-22
申请人： Yoshikazu Ugai , Taizo Iwami , Yuji Nakahara
发明人： Yoshikazu Ugai , Taizo Iwami , Yuji Nakahara
IPC分类号： B22F3/087
CPC分类号： H01F41/028 , B22F3/03 , B22F2998/00 , B22F2999/00 , B22F5/10 , B22F2202/05 , B22F5/106
摘要： An apparatus for manufacturing a ring-shaped powder compact (100) includes a ring-shaped die (80) having magnetic property formed by combining a plurality of arch-shaped members (81, 82, 83, 84), a lower core section (93) placed inside a curved inner surface of the die (80), and lower and upper punches (91, 92) for pressurizing both the die (80) and magnetic powder filled into a cavity formed between the die (80) and the lower core section (93) in an axial direction of the die (80). The curved inner surface of the die (80) varies in cross-sectional shape from one position to next along the axial direction of the die (80) at least in part along the axial direction. A ring magnet manufacturing method includes filling the magnetic powder into the cavity and producing the ring-shaped powder compact (100) by pressurizing the magnetic powder in the cavity in the axial direction by means of the lower and upper punches (91, 92) while applying a radially orienting magnetic field to the magnetic powder, and sintering the ring-shaped powder compact (100).
摘要翻译：一种环状粉末压块（100）的制造装置，具有通过组合多个拱形部件（81,82,83,84），下芯部（ 93）放置在模具（80）的弯曲内表面内，以及下冲头和上冲头（91,92），用于对模具（80）和填充到模具（80）和下模具芯部（93）在模具（80）的轴向方向上。模具（80）的弯曲的内表面至少部分地沿着轴向沿着模具（80）的轴向方向从一个位置到下一个的横截面形状变化。环形磁铁的制造方法包括将磁粉填充到空腔中，并通过下冲头和上冲头（91,92）在轴向上对空腔中的磁粉进行加压来制造环形粉末压坯（100），同时向磁性粉末施加径向定向的磁场，并烧结环形粉末压块（100）。

5. 发明授权

US07524453B2 Apparatus for manufacturing ring-shaped powder compact and method of manufacturing sintered ring magnet 有权
标题翻译：用于制造环形粉末压块的装置和制造烧结环磁体的方法
公开(公告)号：US07524453B2
公开(公告)日：2009-04-28
申请号：US11232025
申请日：2005-09-22
申请人： Yoshikazu Ugai , Taizo Iwami , Yuji Nakahara
发明人： Yoshikazu Ugai , Taizo Iwami , Yuji Nakahara
IPC分类号： B22F3/087
CPC分类号： H01F41/028 , B22F3/03 , B22F2998/00 , B22F2999/00 , B22F5/10 , B22F2202/05 , B22F5/106
摘要： An apparatus for manufacturing a ring-shaped powder compact (100) includes a ring-shaped die (80) having magnetic property formed by combining a plurality of arch-shaped members (81, 82, 83, 84), a lower core section (93) placed inside a curved inner surface of the die (80), and lower and upper punches (91, 92) for pressurizing both the die (80) and magnetic powder filled into a cavity formed between the die (80) and the lower core section (93) in an axial direction of the die (80). The curved inner surface of the die (80) varies in cross-sectional shape from one position to next along the axial direction of the die (80) at least in part along the axial direction. A ring magnet manufacturing method includes filling the magnetic powder into the cavity and producing the ring-shaped powder compact (100) by pressurizing the magnetic powder in the cavity in the axial direction by means of the lower and upper punches (91, 92) while applying a radially orienting magnetic field to the magnetic powder, and sintering the ring-shaped powder compact (100).
摘要翻译：一种环状粉末压块（100）的制造装置，具有通过组合多个拱形部件（81,82,83,84），下芯部（ 93）放置在模具（80）的弯曲内表面内，以及下冲头和上冲头（91,92），用于对模具（80）和填充到模具（80）和下模具芯部（93）在模具（80）的轴向方向上。模具（80）的弯曲的内表面至少部分地沿着轴向沿着模具（80）的轴向方向从一个位置到下一个的横截面形状变化。环形磁铁的制造方法包括将磁粉填充到空腔中，并通过下冲头和上冲头（91,92）在轴向上对空腔中的磁粉进行加压来制造环形粉末压坯（100），同时向磁性粉末施加径向定向的磁场，并烧结环形粉末压块（100）。

6. 发明申请

US20060051233A1 Sintered ring magnet and method of manufacturing the same 审中-公开
标题翻译：烧结环磁铁及其制造方法
公开(公告)号：US20060051233A1
公开(公告)日：2006-03-09
申请号：US11228422
申请日：2005-09-19
申请人： Yoshikazu Ugai , Taizo Iwami , Yuji Nakahara , Satoshi Yamashiro
发明人： Yoshikazu Ugai , Taizo Iwami , Yuji Nakahara , Satoshi Yamashiro
IPC分类号： B22F7/02
CPC分类号： H01F41/0266 , B22F5/003 , B22F2998/00 , H01F1/086 , H01F41/028 , B22F5/106
摘要： A ring magnet manufacturing method includes the steps of stacking a plurality of radially oriented ring-shaped powder compacts (102) in an axial direction thereof to produce a ring-shaped powder compact rod, sintering the ring-shaped powder compact rod to produce a sintered ring-shaped powder compact rod (300) in which the ring-shaped powder compacts (102) are joined together, and dividing the sintered ring-shaped powder compact rod (300). In this ring magnet manufacturing method, protruding parts (103) are formed on upper end surfaces of the ring-shaped powder compacts (102) which will be located in uppermost layers of individual sintered ring magnets (100), for example, such that the ring-shaped powder compacts (102) are joined with a reduced joint strength at specific boundary regions of the sintered ring-shaped powder compact rod (300) where the protruding parts (103) are located than at the other boundary regions. The sintered ring magnets (100) are obtained by dividing the sintered ring-shaped powder compact rod (300) at the specific boundary regions having the reduced joint strength.
摘要翻译：环形磁铁制造方法包括以下步骤：在轴向上堆叠多个径向定向的环形粉末压块（102），以制造环形粉末压实棒，烧结环形粉末压实棒以产生烧结环状粉末压块（300），其中环状粉末压块（102）接合在一起，并且分割烧结的环形粉末压实棒（300）。在这种环形磁铁制造方法中，突出部（103）形成在环状粉末压块（102）的位于单个烧结环状磁铁（100）的最上层的上端面上，例如，环状粉末压块（102）在突出部（103）所在的烧结环状粉末压实棒（300）的其他边界区域的特定边界区域以缩小的接合强度接合。烧结环形磁体（100）通过在具有降低的接合强度的特定边界区域上分割烧结环状粉末压实棒（300）而获得。

7. 发明授权

US07347681B2 Permanent magnet molding apparatus 有权
标题翻译：永磁成型装置
公开(公告)号：US07347681B2
公开(公告)日：2008-03-25
申请号：US10506531
申请日：2003-04-18
申请人： Yoshikazu Ugai , Taizo Iwami , Yuji Nakahara , Yasuo Ozeki
发明人： Yoshikazu Ugai , Taizo Iwami , Yuji Nakahara , Yasuo Ozeki
IPC分类号： B22F3/00
CPC分类号： B22F3/03 , B22F3/02 , B22F2999/00 , H01F41/0266 , H01F41/0273 , B22F2202/05
摘要： This invention relates to a permanent magnet molding apparatus and has as an object an improvement in productivity and reliability thereof. This invention includes a transferable metal die unit (7) including a die having a cavity of a desired cross-sectional shape in which magnet molding material powder is filled, the cavity extending in groovelike form in a specific direction on a surface of the die, a lid member placed to cover the cavity, and a pair of punches having the same cross-sectional shape as the cavity, the punches being capable of fitting in the cavity from both ends thereof and made slidable in directions in which the punches go into contact with and become separated from the magnet molding material powder, pressurizing means (17, 18) for holding the metal die unit (7) which has been transferred with the magnet molding material powder filled in the cavity and for pressurizing the magnet molding material powder by driving the two punches such that the punches slide in their approaching directions, and magnetic field generating means (21, 22) for magnetizing the pressurized magnet molding material powder while applying a magnetic field thereto in a direction perpendicular to a direction of pressurization.
摘要翻译：本发明涉及一种永磁式成型装置，其目的在于提高其生产率和可靠性。本发明包括可转移金属模具单元（7），其包括具有期望的横截面形状的空腔的模具，其中填充有磁性成型材料粉末，所述空腔沿模具的表面沿特定方向以槽状形式延伸，设置为覆盖空腔的盖构件以及具有与空腔相同的横截面形状的一对冲头，所述冲头能够从其两端安装在空腔中并且可在冲头接触的方向上滑动与磁体成型材料粉末分离，并且用于保持金属模具单元（7）的加压装置（17,18），该金属模具单元（7）已经被填充在空腔中的磁性成型材料粉末转移并且用于通过驱动两个冲头，使得冲头在其接近的方向上滑动;以及磁场产生装置（21,22），用于磁化加压磁体成型材料同时在与加压方向垂直的方向上施加磁场。

8. 发明申请

US20060055266A1 Sintered ring magnet 审中-公开
标题翻译：烧结环磁铁
公开(公告)号：US20060055266A1
公开(公告)日：2006-03-16
申请号：US11227184
申请日：2005-09-16
申请人： Taizo Iwami , Yoshikazu Ugai , Yuji Nakahara
发明人： Taizo Iwami , Yoshikazu Ugai , Yuji Nakahara
IPC分类号： H02K1/04 , H02K21/12 , H02K1/27
CPC分类号： B22F7/062 , H01F1/086 , H01F41/028 , H02K1/2733 , H02K15/03
摘要： A sintered ring magnet (10) is produced through processes of magnetically orienting magnetic powder by applying a magnetic field, pressing the magnetic powder and sintering a ring-shaped powder compact (30) thus formed. The sintered ring magnet (10) has a generally cylindrical outer surface with surface corrugations formed by alternating hollows (11) and protrusions (12) at regular intervals around the sintered ring magnet (10) at least in part along an axial direction thereof, wherein the sintered ring magnet (10) varies in cross-sectional shape from one position to next along the axial direction, and magnetic poles are formed along the surface corrugations with boundaries of the magnetic poles located in the hollows (11). The hollows (11) and the protrusions (12) are skewed about a longitudinal axis of the sintered ring magnet (10). The surface corrugations are shaped into a wavy pattern expressed approximately by absolute values of a sine wave.
摘要翻译：烧结环形磁铁（10）是通过施加磁场的磁性取向磁性粉末的工艺制造的，压制磁粉并烧结由此形成的环形粉末压块（30）。烧结环形磁铁（10）具有大致圆柱形的外表面，其表面波纹通过交替的中空（11）和凸起（12）沿着其轴向方向至少部分地围绕烧结环形磁体（10）以规则的间隔形成，其中烧结环形磁体（10）沿着轴向从一个位置向下一个位置变化，并且沿着具有位于中空部（11）中的磁极的边界的表面波纹形成磁极。中空部（11）和突起（12）围绕烧结环状磁铁（10）的纵向轴线倾斜。表面波纹被成形为大致由正弦波的绝对值表示的波形图案。

9. 发明授权

US06649844B2 Coil conductor for dynamoelectric machine 失效
标题翻译：电动机线圈导体
公开(公告)号：US06649844B2
公开(公告)日：2003-11-18
申请号：US09784050
申请日：2001-02-16
申请人： Katsuhiko Kusumoto , Shinji Nishimura , Keiichi Komurasaki , Akiyoshi Kariyama , Akihiro Yamamura , Yuji Nakahara , Hidekazu Satake , Yoshikazu Ugai
发明人： Katsuhiko Kusumoto , Shinji Nishimura , Keiichi Komurasaki , Akiyoshi Kariyama , Akihiro Yamamura , Yuji Nakahara , Hidekazu Satake , Yoshikazu Ugai
IPC分类号： H01B508
CPC分类号： H02K15/105 , H02K3/12 , H02K3/14 , H02K3/28 , H02K15/0478
摘要： A coil conductor for a dynamoelectric machine which is a coil conductor to be inserted into slots of an iron core of a dynamoelectric machine, the coil conductor being made of a plurality of wire elements compression-bonded to each other by press-forming so as to have a substantially rectangular cross-section. The wire elements may be twisted by at least 360 degrees and the twisted wire elements may be further twisted. The coil conductor includes straight sections and crossover sections, providing an overall shape of a crank wound in a serpentine manner and the straight sections have different intervals that are different in accordance with the different periodical numbers n th and (n+1) th. The coil conductor for a dynamoelectric machine may further include an electrical insulating material disposed around the conductor of a square cross-sectional shape that is formed by simultaneously pressing the conductor bundle with an electrical insulating material placed therearound before press-forming.
摘要翻译：一种用于电动机的线圈导体，其是插入到电动机的铁芯的槽中的线圈导体，所述线圈导体由通过压制成形彼此压接的多个线元件制成，以便具有基本上矩形的横截面。线元件可以扭转至少360度，并且绞合线元件可以进一步扭曲。线圈导体包括直线部分和交叉部分，提供以蛇形方式缠绕的曲柄的整体形状，并且直线段具有根据不同周期数n th和（n + 1）而不同的不同间隔。用于电动机的线圈导体还可以包括电绝缘材料，该电绝缘材料围绕导体以正方形截面形状设置，该电绝缘材料通过在压制成形之前周围放置的电绝缘材料同时挤压导体束而形成。

10. 发明授权

US06225724B1 Motor and motor rotor having embedded permanent magnets 失效
标题翻译：电机和电机转子具有嵌入式永磁体
公开(公告)号：US06225724B1
公开(公告)日：2001-05-01
申请号：US09357950
申请日：1999-07-21
申请人： Yukari Toide , Akihiro Daikoku , Yuji Nakahara , Toyomi Ohshige , Yoshikazu Ugai
发明人： Yukari Toide , Akihiro Daikoku , Yuji Nakahara , Toyomi Ohshige , Yoshikazu Ugai
IPC分类号： H02K122
CPC分类号： H02K15/03 , H02K1/276 , H02K1/2766 , H02K2201/06
摘要： A motor embedded with magnets having good properties and productivity. A rotor of this motor includes a rotor core with laminated rotor core plates punched out of an electromagnetic steel plate and studded with bonded magnets of a powdered permanent magnet material and a resin in groups of slits located in the rotor core for each pole of the rotor.
摘要翻译：嵌入磁铁的电机具有良好的性能和生产率。该电动机的转子包括：转子铁芯，其具有从电磁钢板冲压出的层叠的转子铁心板，并且在转子的每个极上分别设有粉末状永久磁铁材料的粘结磁体和位于转子铁心中的一组狭缝。

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