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1. 发明申请

US20180114622A1 Sintered Body for Forming Rare-earth Permanent Magnet and Rotary Electric Machine having Rare-earth Permanent Magnet 审中-公开
公开(公告)号：US20180114622A1
公开(公告)日：2018-04-26
申请号：US15560814
申请日：2016-03-24
申请人： NITTO DENKO CORPORATION
发明人： Makoto FUJIHARA , Kenichi FUJIKAWA , Shoichiro SAITO
IPC分类号： H01F7/02 , H02K1/27 , H02K15/03
CPC分类号： H01F7/0247 , H01F1/053 , H01F1/0577 , H01F1/08 , H01F7/02 , H01F41/0273 , H01F41/028 , H02K1/22 , H02K1/27 , H02K15/03
摘要： This invention provides for a rotary electric machine that includes a rotor having a plurality of permanent magnets arranged in the circumferential direction, and in which the leakage of magnetic flux can be suppressed with a simple structure; and a rare-earth permanent magnet-forming sintered compact for forming rare-earth permanent magnets to be used in said rotary electric machine.

2. 发明授权

US09666341B2 Production method for anisotropic bonded magnet and production apparatus for same 有权
公开(公告)号：US09666341B2
公开(公告)日：2017-05-30
申请号：US13639785
申请日：2011-04-05
申请人： Yoshinobu Honkura , Hironari Mitarai , Hiroshi Matsuoka , Masayuki Kato , Ikuzou Okumura
发明人： Yoshinobu Honkura , Hironari Mitarai , Hiroshi Matsuoka , Masayuki Kato , Ikuzou Okumura
IPC分类号： H01F1/28 , H01F1/08 , H02K15/03 , B29C43/00 , H01F1/01 , H01F41/02 , H01F1/057
CPC分类号： H01F41/0266 , B22F3/004 , B22F3/03 , B22F3/04 , B22F3/24 , B22F2003/248 , B22F2202/05 , B22F2998/10 , B29C43/003 , H01F1/01 , H01F1/0578 , H01F1/083 , H01F1/28 , H01F41/0273 , H01F41/028 , H02K15/03
摘要： A method for production of an anisotropic bonded magnet includes: aligning magnetic pole bodies which include an even number of permanent magnets arranged uniformly around an outer periphery of an annular cavity filled with magnetic raw material, aligning magnetic fields to cause rare-earth anisotropic magnet powder to be semi-radially aligned; compressively molding the semi-radially aligned magnet raw material to obtain an annular compact; discharging the compact from the annular cavity; demagnetizing causing the aligning magnetic pole bodies to relatively move only in circumferential direction with respect to the compact after the molding step thereby to apply demagnetization magnetic fields to the compact; The demagnetization magnetic fields are applied from the aligning magnetic pole bodies with opposite poles to those during the alignment step, and the demagnetization magnetic fields are in directions for cancelling the magnetization of the compact caused by the aligning magnetic fields.

3. 发明授权

US09418786B2 R—Fe—B porous magnet and method for producing the same 有权
标题翻译： R-Fe-B多孔磁体及其制造方法
公开(公告)号：US09418786B2
公开(公告)日：2016-08-16
申请号：US13586917
申请日：2012-08-16
申请人： Takeshi Nishiuchi , Noriyuki Nozawa , Satoshi Hirosawa , Tomohito Maki , Katsunori Bekki
发明人： Takeshi Nishiuchi , Noriyuki Nozawa , Satoshi Hirosawa , Tomohito Maki , Katsunori Bekki
IPC分类号： H01F1/057 , H01F41/02
CPC分类号： H01F1/057 , H01F1/0573 , H01F1/0576 , H01F1/0578 , H01F1/0579 , H01F41/028 , Y10T428/12153
摘要： An R—Fe—B based porous magnet according to the present invention has an aggregate structure of Nd2Fe14B type crystalline phases with an average grain size of 0.1 μm to 1 μm. At least a portion of the magnet is porous and has micropores with a major axis of 1 μm to 20 μm.
摘要翻译：根据本发明的R-Fe-B系多孔磁体具有平均粒径为0.1μm〜1μm的Nd2Fe14B型结晶相的集合体。磁体的至少一部分是多孔的并且具有长轴为1μm至20μm的微孔。

4. 发明授权

US09312055B2 Case-integrated bonded magnet and production method for same 有权
标题翻译：案例一体化粘结磁体及其制作方法
公开(公告)号：US09312055B2
公开(公告)日：2016-04-12
申请号：US13639723
申请日：2011-04-05
申请人： Yoshinobu Honkura , Hironari Mitarai , Hiroshi Matsuoka , Masayuki Kato , Ikuzou Okumura
发明人： Yoshinobu Honkura , Hironari Mitarai , Hiroshi Matsuoka , Masayuki Kato , Ikuzou Okumura
IPC分类号： H01F1/01 , B29C43/00 , H01F1/28 , H01F1/08 , H02K15/03 , H01F41/02 , H01F1/057
CPC分类号： H01F41/0266 , B22F3/004 , B22F3/03 , B22F3/04 , B22F3/24 , B22F2003/248 , B22F2202/05 , B22F2998/10 , B29C43/003 , H01F1/01 , H01F1/0578 , H01F1/083 , H01F1/28 , H01F41/0273 , H01F41/028 , H02K15/03
摘要： A production method for a case-integrated bonded magnet includes: filling a tubular cavity with a magnet raw material that includes a rare-earth magnet powder and a thermosetting resin binder; heating the magnet raw material to cause the thermosetting resin softened or melted while compressively molding the magnet raw material to obtain a tubular compact; discharging the tubular compact from the tubular cavity while press-fitting the tubular compact into a metal tubular case having an inner peripheral surface coaxial with the tubular cavity; and heat-curing the tubular compact with the tubular case to cure the thermosetting resin. The tubular compact press-fitted into the tubular case is thermally cured thereby causing the tubular compact to transform to a tubular bonded magnet, which expands unexpectedly due to heat.
摘要翻译：壳体一体型粘结磁体的制造方法包括：用包含稀土类磁体粉末和热固性树脂粘合剂的磁铁原料填充管状空腔; 加热磁体原料，使得热固性树脂软化或熔化，同时压缩成型磁体原料以获得管状压块; 将管状压块从管状腔排出，同时将管状压块压配合到具有与管状腔同轴的内周表面的金属管状壳体中; 并用管状壳体对管状压块进行热固化以固化热固性树脂。压入管状壳体中的管状压块被热固化，从而使管状压块转变成由于热而意外膨胀的管状粘结磁体。

5. 发明申请

US20150125337A1 METHOD FOR PRODUCING RARE EARTH SINTERED MAGNET, AND MOLD 审中-公开
公开(公告)号：US20150125337A1
公开(公告)日：2015-05-07
申请号：US14411180
申请日：2013-06-25
申请人： HITACHI METALS, LTD
发明人： Takashi Tsukada , Takuya Nansaka , Satoru Kikuchi
IPC分类号： H01F41/02 , B22F3/22 , B22F3/00 , H01F1/08
CPC分类号： H01F41/0266 , B22F3/004 , B22F3/02 , B22F3/087 , B22F3/22 , B22F3/225 , C22C1/0433 , C22C38/002 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/16 , C22C2202/02 , H01F1/0577 , H01F1/086 , H01F41/0273 , H01F41/028
摘要： The present invention provides a method for producing a rare earth sintered magnet, capable of reducing variation in magnetic characteristics of a rare earth sintered magnet and suppressing deformation of the rare earth sintered magnet. Disclosed is a method for producing a rare earth sintered magnet, including the steps of: preparing a slurry including an alloy powder and a dispersion medium at a predetermined ratio, the alloy powder containing at least a rare earth element; preparing a cavity enclosed with a mold, and an upper punch and a lower punch spaced from and opposed to each other, at least one of the upper punch and the lower punch being movable toward and away from the other one, at least one of the upper punch and the lower punch including an outlet for discharging the dispersion medium of the slurry and filtering the slurry, the mold having a cross sectional shape perpendicular to the sliding direction of the upper punch or the lower punch, the cross sectional shape being enclosed with an approximately arc-shaped outer circumference, an approximately arc-shaped inner circumference, and a pair of side circumferences connecting between the outer circumference and the inner circumference, a ratio of a distance between farthest ends of a pair of side circumferences to a distance between a top end of the outer circumference and a top end of the inner circumference being 1.5 or more, the upper punch or the lower punch being allowed to slide in a through-hole formed in the sliding direction along an outer peripheral surface including the outer circumference, an inner peripheral surface including the inner circumference, and the side circumference surfaces including the side circumferences; injecting the slurry into the cavity in a state where the upper punch and the lower punch remain stationary to fill the cavity with the slurry, a magnetic field being applied to the cavity; producing a molded body of the alloy powder by press molding in the magnetic field, the upper punch and the lower punch coming closer to each other while applying the magnetic field; and sintering the molded body; wherein the slurry is injected into the cavity so that the slurry travels from one place of the top end in the cross section perpendicular to the sliding direction of one of the outer peripheral surface and the inner peripheral surface, to one place of the top end in the cross section perpendicular to the sliding direction of the other one of the outer peripheral surface and the inner peripheral surface.

6. 发明申请

US20130187311A1 METHOD OF MANUFACTURING CYLINDRICAL BONDED MAGNET AND MANUFACTURING EQUIPMENT FOR CYLINDRICAL BONDED MAGNET 有权
标题翻译：圆柱形磁铁的制造方法和制造用于圆柱形磁铁的设备
公开(公告)号：US20130187311A1
公开(公告)日：2013-07-25
申请号：US13727449
申请日：2012-12-26
申请人： Nichia Corporation
发明人： Shinji YOSHIMA , Muneo YAMAMOTO , Shuichi TADA , Akihiro IMAYAMA
IPC分类号： B29C47/00
CPC分类号： B29C47/0004 , B29C47/0023 , B29C47/0066 , B29C47/20 , B29C47/92 , B29C2947/92704 , B29K2995/0008 , H01F41/028
摘要： In a method for manufacturing a cylindrical bonded magnet, a molding space having a cylindrical shape is filled with a bonded magnet composition containing a magnetic material and a resin. The magnetic material disposed in the molding space is magnetically oriented using an orientation magnet. The orientation magnet includes a first permanent magnet and a second permanent magnet. The first and second permanent magnets are disposed such that same poles are opposite each other in the axial direction.
摘要翻译：在制造圆柱形粘结磁体的方法中，用含有磁性材料和树脂的粘结磁体组合物填充具有圆柱形形状的模制空间。设置在成型空间中的磁性材料使用定向磁铁进行磁取向。取向磁铁包括第一永久磁铁和第二永久磁铁。第一永久磁铁和第二永久磁铁被设置为使得相同的磁极在轴向方向上彼此相对。

7. 发明申请

US20130093121A1 PRODUCTION METHOD FOR ANISOTROPIC BONDED MAGNET AND PRODUCTION APPARATUS FOR SAME 有权
标题翻译：用于各向异性粘结磁体的生产方法及其生产设备
公开(公告)号：US20130093121A1
公开(公告)日：2013-04-18
申请号：US13639785
申请日：2011-04-05
申请人： Yoshinobu Honkura , Hironari Mitarai , Hiroshi Matsuoka , Masayuki Kato , Ikuzou Okumura
发明人： Yoshinobu Honkura , Hironari Mitarai , Hiroshi Matsuoka , Masayuki Kato , Ikuzou Okumura
IPC分类号： H01F1/28
CPC分类号： H01F41/0266 , B22F3/004 , B22F3/03 , B22F3/04 , B22F3/24 , B22F2003/248 , B22F2202/05 , B22F2998/10 , B29C43/003 , H01F1/01 , H01F1/0578 , H01F1/083 , H01F1/28 , H01F41/0273 , H01F41/028 , H02K15/03
摘要： A method for production of an anisotropic bonded magnet includes: aligning magnetic pole bodies which include an even number of permanent magnets arranged uniformly around an outer periphery of an annular cavity filled with magnetic raw material, aligning magnetic fields to cause rare-earth anisotropic magnet powder to be semi-radially aligned; compressively molding the semi-radially aligned magnet raw material to obtain an annular compact; discharging the compact from the annular cavity; demagnetizing causing the aligning magnetic pole bodies to relatively move only in circumferential direction with respect to the compact after the molding step thereby to apply demagnetization magnetic fields to the compact. The demagnetization magnetic fields are applied from the aligning magnetic pole bodies with opposite poles to those during the alignment step, and the demagnetization magnetic fields are in directions for cancelling the magnetization of the compact caused by the aligning magnetic fields.
摘要翻译：一种各向异性粘结磁体的制造方法包括：将包含偶数个永磁体的磁极体排列成均匀地围绕填充有磁性原料的环形空腔的外周排列，对准磁场以引起稀土各向异性磁体粉末半径向对齐; 对半径向对准的磁铁原料进行压缩成型，得到环形成形体; 从环形腔排出压块; 退磁使得排列磁极体在成型步骤之后相对于压块在圆周方向上相对移动，从而对压块施加消磁磁场。退磁磁场从对准磁极体与对准步骤中的极点相反地施加，并且退磁磁场在消除由取向磁场引起的压电体的磁化的方向上。

8. 发明申请

US20120306308A1 R-Fe-B POROUS MAGNET AND METHOD FOR PRODUCING THE SAME 有权
标题翻译： R-Fe-B多孔磁铁及其制造方法
公开(公告)号：US20120306308A1
公开(公告)日：2012-12-06
申请号：US13586917
申请日：2012-08-16
申请人： Takeshi NISHIUCHI , Noriyuki NOZAWA , Satoshi HIROSAWA , Tomohito MAKI , Katsunori BEKKI
发明人： Takeshi NISHIUCHI , Noriyuki NOZAWA , Satoshi HIROSAWA , Tomohito MAKI , Katsunori BEKKI
IPC分类号： H02K21/12 , H01F7/02 , B22F7/02 , B05D5/00 , B22F3/26
CPC分类号： H01F1/057 , H01F1/0573 , H01F1/0576 , H01F1/0578 , H01F1/0579 , H01F41/028 , Y10T428/12153
摘要： An R—Fe—B based porous magnet according to the present invention has an aggregate structure of Nd2Fe14B type crystalline phases with an average grain size of 0.1 μm to 1 μm. At least a portion of the magnet is porous and has micropores with a major axis of 1 μm to 20 μm.
摘要翻译：根据本发明的R-Fe-B系多孔磁体具有平均粒径为0.1μm〜1μm的Nd2Fe14B型结晶相的集合体。磁体的至少一部分是多孔的并且具有长轴为1μm至20μm的微孔。

9. 发明授权

US08303837B2 Rotating machine, bonded magnet, magnet roll, and method for producing sintered ferrite magnet 有权
标题翻译：旋转机，粘结磁体，磁辊，以及烧结铁氧体磁铁的制造方法
公开(公告)号：US08303837B2
公开(公告)日：2012-11-06
申请号：US12281898
申请日：2007-02-13
申请人： Takashi Takami , Hiroshi Iwasaki , Yoshinori Kobayashi , Naoki Mochi , Ryuji Gotoh
发明人： Takashi Takami , Hiroshi Iwasaki , Yoshinori Kobayashi , Naoki Mochi , Ryuji Gotoh
IPC分类号： H01F1/113 , H01F41/02
CPC分类号： H01F7/02 , C01G49/0018 , C01G49/009 , C01G51/006 , C01P2002/52 , C01P2004/03 , C01P2004/20 , C01P2004/54 , C01P2004/62 , C01P2006/10 , C01P2006/42 , C01P2006/80 , C04B35/2633 , C04B35/2641 , C04B35/62204 , C04B35/6261 , C04B35/62675 , C04B35/6268 , C04B2235/3201 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3217 , C04B2235/3227 , C04B2235/3241 , C04B2235/3262 , C04B2235/3275 , C04B2235/3277 , C04B2235/3279 , C04B2235/3298 , C04B2235/3409 , C04B2235/3418 , C04B2235/444 , C04B2235/5436 , C04B2235/5445 , C04B2235/605 , C04B2235/656 , C04B2235/6585 , C04B2235/72 , C04B2235/767 , C04B2235/77 , C04B2235/785 , C04B2235/787 , C04B2235/788 , H01F1/11 , H01F41/0266 , H01F41/028
摘要： A rotating machine comprising a sintered ferrite magnet having an M-type ferrite structure, comprising Ca, an R element that is at least one of rare earth elements and indispensably includes La, Ba, Fe and Co as indispensable elements, and having a composition represented by the formula: Ca1-x-yRxBayFe2n-zCoz, wherein (1−x−y), x, y, z and n represent the contents of Ca, the R element, Ba and Co, and a molar ratio, meeting 0.3≦1−x−y≦0.65, 0.2≦x≦0.65, 0.001≦y≦0.2, 0.03≦z≦0.65, 4≦n≦7, and 1−x−y>y; a bonded magnet comprising ferrite powder having the above composition and a binder, and a magnet roll, at least one magnetic pole portion of which is made of the above bonded magnet.
摘要翻译：一种包括具有M型铁氧体结构的烧结铁氧体磁体的旋转机械，包括Ca，作为稀土元素中的至少一种的R元素，并且不可或缺地包括La，Ba，Fe和Co作为不可缺少的元素，并且具有代表性的组成其中（1-x-y），x，y，z和n表示Ca，R元素，Ba和Co的含量，摩尔比为0.3＆nlE ; 1-x-y和nlE; 0.65,0.2＆nlE; x和nlE; 0.65,0.001和nlE; y＆nlE; 0.2,0.03和nlE; z和nlE; 0.65,4和nlE; n和nlE; 7和1-x-y> y; 包括具有上述组成的铁氧体粉末和粘合剂的粘结磁体和磁性辊，至少一个磁极部分由上述粘结磁体制成。

10. 发明申请

US20120211910A1 ROTATING MACHINE, BONDED MAGNET, MAGNET ROLL, AND METHOD FOR PRODUCING SINTERED FERRITE MAGNET 有权
标题翻译：旋转机，粘结磁铁，磁铁滚筒和生产烧结磁铁的方法
公开(公告)号：US20120211910A1
公开(公告)日：2012-08-23
申请号：US13211422
申请日：2011-08-17
申请人： Takashi TAKAMI , Hiroshi IWASAKI , Yoshinori KOBAYASHI , Naoki MOCHI , Ryuji GOTOH
发明人： Takashi TAKAMI , Hiroshi IWASAKI , Yoshinori KOBAYASHI , Naoki MOCHI , Ryuji GOTOH
IPC分类号： B29B13/02
CPC分类号： H01F7/02 , C01G49/0018 , C01G49/009 , C01G51/006 , C01P2002/52 , C01P2004/03 , C01P2004/20 , C01P2004/54 , C01P2004/62 , C01P2006/10 , C01P2006/42 , C01P2006/80 , C04B35/2633 , C04B35/2641 , C04B35/62204 , C04B35/6261 , C04B35/62675 , C04B35/6268 , C04B2235/3201 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3217 , C04B2235/3227 , C04B2235/3241 , C04B2235/3262 , C04B2235/3275 , C04B2235/3277 , C04B2235/3279 , C04B2235/3298 , C04B2235/3409 , C04B2235/3418 , C04B2235/444 , C04B2235/5436 , C04B2235/5445 , C04B2235/605 , C04B2235/656 , C04B2235/6585 , C04B2235/72 , C04B2235/767 , C04B2235/77 , C04B2235/785 , C04B2235/787 , C04B2235/788 , H01F1/11 , H01F41/0266 , H01F41/028
摘要： A rotating machine comprising a sintered ferrite magnet having an M-type ferrite structure, comprising Ca, an R element that is at least one of rare earth elements and indispensably includes La, Ba, Fe and Co as indispensable elements, and having a composition represented by the formula: Ca1−x−yRxBayFe2n−zCoz, wherein (1−x−y), x, y, z and n represent the contents of Ca, the R element, Ba and Co, and a molar ratio, meeting 0.3≦1−x−y≦0.65, 0.2≦x≦0.65, 0.001≦y≦0.2, 0.03≦z≦0.65, 4≦n≦7, and 1−x−y>y; a bonded magnet comprising ferrite powder having the above composition and a binder, and a magnet roll, at least one magnetic pole portion of which is made of the above bonded magnet.
摘要翻译：一种包括具有M型铁氧体结构的烧结铁氧体磁体的旋转机械，包括Ca，作为稀土元素中的至少一种的R元素，并且不可或缺地包括La，Ba，Fe和Co作为不可缺少的元素，并且具有代表性的组成其中（1-x-y），x，y，z和n表示Ca，R元素，Ba和Co的含量，摩尔比为0.3＆nlE ; 1-x-y和nlE; 0.65,0.2＆nlE; x和nlE; 0.65,0.001和nlE; y＆nlE; 0.2,0.03和nlE; z和nlE; 0.65,4和nlE; n和nlE; 7和1-x-y> y; 包括具有上述组成的铁氧体粉末和粘合剂的粘结磁体和磁性辊，至少一个磁极部分由上述粘结磁体制成。

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