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1. 发明授权

US06475302B2 Permanent magnet 失效
标题翻译：永久磁铁
公开(公告)号：US06475302B2
公开(公告)日：2002-11-05
申请号：US09749803
申请日：2000-12-28
申请人： Wu Mei , Toshiya Sakamoto , Shinya Sakurada , Takao Sawa , Akihiko Tsutai , Akiko Saito , Masashi Sahashi
发明人： Wu Mei , Toshiya Sakamoto , Shinya Sakurada , Takao Sawa , Akihiko Tsutai , Akiko Saito , Masashi Sahashi
IPC分类号： H01F1055
CPC分类号： H01F1/058 , H01F1/0306 , H01F1/055 , H01F1/057
摘要： Disclosed is a permanent magnet which comprises an alloy containing a hard magnetic phase having a ThMn12 type tetragonal structure and a nonmagnetic phase. The alloy is represented by a general formula given below: [R1-a(M1)a][T1-b-c(M2)b(M3)c]dx&agr; where R is at least one rare earth element (including Y), Ml is at least one element selected from the group consisting of Zr and Hf, T is at least one element selected from the group consisting of Fe, Co and Ni, M2 is at least one element selected from the group consisting of Cu, Bi, Sn, Mg, In and Pb, M3 is at least one element selected from the group consisting of Al, Ga, Ge, Zn, B, P and S, X is at least one element selected from the group consisting of Si, Ti, V, Cr, Mn, Nb, Mo, Ta and W, and the atomic ratios of a, b, c, d and &agr; fall within the ranges of 0≦a≦0.6, 0.01≦b≦0.20, 0≦c≦0.05, 6≦d≦11, and 0.5≦&agr;≦2.0.
摘要翻译：公开了一种永磁体，其包含含有ThMn 12型四方晶系的硬磁相和非磁性相的合金。该合金由以下给出的通式表示：其中R是至少一种稀土元素（包括Y），M1是选自Zr和Hf中的至少一种元素，T是至少一种选自由Fe，Co和Ni构成的组，M2是选自Cu，Bi，Sn，Mg，In和Pb中的至少一种元素，M3是选自Al，Ga，Ge中的至少一种元素，Zn，B，P和S中的至少一种，X是选自由Si，Ti，V，Cr，Mn，Nb，Mo，Ta和W组成的组中的至少一种元素，并且a，b，c， d和α落在0 <= a <= 0.6,0.01 <= b <= 0.20,0 <= c <= 0.05,6 <= d <= 11和0.5 <=α<2.0的范围内。

2. 发明授权

US06256863B1 Yoke type magnetoresistance head and manufacturing method of the same 失效
标题翻译：轭型磁阻头及其制造方法
公开(公告)号：US06256863B1
公开(公告)日：2001-07-10
申请号：US08815179
申请日：1997-03-11
申请人： Kazuhiro Saito , Akiko Saito , Hitoshi Iwasaki , Akihiko Tsutai , Hiroaki Yoda , Tadahiko Kobayashi , Yuichi Ohsawa , Masahi Sahashi , Yuzo Kamiguchi
发明人： Kazuhiro Saito , Akiko Saito , Hitoshi Iwasaki , Akihiko Tsutai , Hiroaki Yoda , Tadahiko Kobayashi , Yuichi Ohsawa , Masahi Sahashi , Yuzo Kamiguchi
IPC分类号： G11B542
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3113 , G11B5/3163 , G11B5/3903 , G11B5/3916 , G11B2005/3996 , Y10T29/49034
摘要： A magnetic yoke having a magnetic gap provided in the side of the surface facing the medium is disposed on the surface of a substrate. An MR film is disposed on the surface of the magnetic yoke substantially parallel to the substrate with a predetermined separation from the surface S facing the medium. At least both end portions of the MR film are magnetically coupled to the magnetic yoke. A pair of leads for supplying sensing current to the MR film have magnetic lead portions formed from the same magnetic layers as the magnetic yoke. The magnetic lead portions curb deterioration of MR head properties and yield reduction during formation of the leads. Furthermore, a bias magnetic field is applied to the magnetic yoke and the MR film at least during operation of the head. This bias magnetic field is for instance provided by a magnetic field induced by the electric current. Alternatively, a magnetic field induced by the electric current is applied while heat-processing the magnetic yoke. Magnetic anisotropy is induced to the magnetic yoke in a direction differing according to the position. This magnetic anisotropy curbs Barkhausen noise caused by the magnetic yoke.
摘要翻译：在基板的表面上设置具有设置在面向介质的表面侧的磁隙的磁轭。以与面向介质的表面S预定间隔的方式将磁性薄膜基本上平行于基板平行设置在磁轭的表面上。 MR膜的至少两个端部磁耦合到磁轭。用于向MR膜提供感测电流的一对引线具有由与磁轭相同的磁性层形成的磁性引线部分。磁性引线部分在引线形成期间抑制MR磁头特性的劣化和屈服减少。此外，至少在头部的操作期间，向磁轭和MR膜施加偏置磁场。该偏置磁场例如由电流引起的磁场提供。或者，在对磁轭进行加热处理的同时施加由电流引起的磁场。磁性各向异性在根据位置不同的方向上被引到磁轭上。这种磁各向异性限制了由磁轭引起的Barkhausen噪声。

3. 发明授权

US5658396A Magnetic material 失效
标题翻译：磁性材料
公开(公告)号：US5658396A
公开(公告)日：1997-08-19
申请号：US540173
申请日：1995-10-06
申请人： Shinya Sakurada , Takahiro Hirai , Akihiko Tsutai
发明人： Shinya Sakurada , Takahiro Hirai , Akihiko Tsutai
IPC分类号： C22C38/00 , H01F1/055
CPC分类号： C22C38/00 , H01F1/055
摘要： Disclosed is a magnetic material which exhibits an improved saturation magnetic flux density and an improved magnetic anisotropy and, thus, is adapted for use as a raw material of a permanent magnet or a bond magnet of a high performance. The magnetic material is represented by a general formulaR.sub.x Co.sub.y Fe.sub.100-x-y (I)where R is at least one element selected from the rare earth elements, x and y are atomic percent individually defined as 4.ltoreq.x.ltoreq.20 and 0.01.ltoreq.y.ltoreq.70, and Co and Fe occupy 90 atomic percent or more in the principal phase of the compound.
摘要翻译：公开了一种具有提高的饱和磁通密度和改善的磁各向异性的磁性材料，因此适合用作高性能永磁体或粘结磁铁的原料。磁性材料由通式RxCoyFe100-xy（I）表示，其中R是选自稀土元素中的至少一种元素，x和y分别为原子百分比定义为4≤x≤20和0.01 < / = y <70，Co和Fe在化合物的主相中占据90原子％以上。

4. 发明授权

US5593517A Regenerating material and refrigerator using the same 失效
标题翻译：再生材料和冰箱使用相同
公开(公告)号：US5593517A
公开(公告)日：1997-01-14
申请号：US305916
申请日：1994-09-15
申请人： Akiko Saito , Masashi Sahashi , Yoichi Tokai , Akihiko Tsutai , Masami Okamura , Yukiko Nishiyama , Michihiko Inaba
发明人： Akiko Saito , Masashi Sahashi , Yoichi Tokai , Akihiko Tsutai , Masami Okamura , Yukiko Nishiyama , Michihiko Inaba
IPC分类号： F25B9/14 , H01F1/00 , H01F1/01 , H01F1/055
CPC分类号： B82Y25/00 , F25B9/14 , H01F1/015 , F25B2309/003
摘要： The regenerating material according to the present invention comprises two alloy phases which differ in a content of rare earth elements. Of these alloy phases, a dominant phase in the regenerating material is defined as a main phase, and the other phase is defined as a sub-phase. A plurality of particles, each of which consists of a granular main phase and a sub-phase present on the surface of the main phase, gathers to form an aggregate. Otherwise, a sub-phase present in a main phase in the form of fiber. The refrigerator according to the present invention comprises a regenerator charged with above-mentioned regenerating material, a coolant gas and an expansion means for expanding the coolant gas.
摘要翻译：根据本发明的再生材料包括稀土元素含量不同的两个合金相。在这些合金相中，再生材料中的主相被定义为主相，另一相被定义为子相。多个颗粒，每个颗粒由存在于主相表面上的颗粒状主相和亚相组成，聚集形成聚集体。否则，以纤维形式存在于主相中的子阶段。根据本发明的冰箱包括装有上述再生材料的再生器，冷却剂气体和用于膨胀冷却剂气体的膨胀装置。

5. 发明授权

US5716462A Magnetic material and bonded magnet 失效
标题翻译：磁性材料和粘结磁铁
公开(公告)号：US5716462A
公开(公告)日：1998-02-10
申请号：US671595
申请日：1996-06-28
申请人： Shinya Sakurada , Akihiko Tsutai , Takahiro Hirai , Yoshitaka Yanagita , Masashi Sahashi , Tomohisa Arai , Keisuke Hashimoto
发明人： Shinya Sakurada , Akihiko Tsutai , Takahiro Hirai , Yoshitaka Yanagita , Masashi Sahashi , Tomohisa Arai , Keisuke Hashimoto
IPC分类号： C22C19/07 , C22C38/00 , H01F1/053 , H01F1/057 , H01F1/058 , H01F1/059 , H01F1/08
CPC分类号： H01F1/057 , H01F1/0578 , H01F1/058 , H01F1/059
摘要： There is provided a magnetic material having a TbCu.sub.7 phase as a principal phase and excellent in residual magnetic flux density. This magnetic material is formed of a composition represented by a general formula: R1.sub.x R2.sub.y B.sub.z A.sub.u M.sub.100-x-y-z-u wherein R1 is at least one element selected from rare earth elements including Y; R2 is at least one element selected from Zr, Hf and Sc; A is at least one element selected from H, N, C and P; M is at least one element selected from Fe and Co; x, y, z and u represent are atomic percent individually defined as 2.ltoreq.x, 2.ltoreq.x+y.ltoreq.20, 0.001.ltoreq.z.ltoreq.10, 0.ltoreq.u.ltoreq.20; and a principal phase of the magnetic material having a TbCu.sub.7 type crystal structure.
摘要翻译：提供了具有TbCu7相作为主相的磁性材料，并且剩余磁通密度优异。该磁性材料由通式R1xR2yBzAuM100-x-y-z-u表示的组合物形成，其中R1为选自包括Y在内的稀土元素中的至少一种元素; R2是选自Zr，Hf和Sc中的至少一种元素; A是选自H，N，C和P中的至少一种元素; M是选自Fe和Co中的至少一种元素; x，y，z和u表示的是原子百分比，分别定义为2，x，2，...，x，y = 20,0.001， 20; 以及具有TbCu7型晶体结构的磁性材料的主相。

6. 发明授权

US5549766A Magnetic material 失效
标题翻译：磁性材料
公开(公告)号：US5549766A
公开(公告)日：1996-08-27
申请号：US288808
申请日：1994-08-12
申请人： Akihiko Tsutai , Takahiro Hirai , Shinya Sakurada
发明人： Akihiko Tsutai , Takahiro Hirai , Shinya Sakurada
IPC分类号： H01F1/055 , H01F1/058 , H01F1/059
CPC分类号： H01F1/059 , H01F1/055 , H01F1/058
摘要： A permanent magnet is composed of a magnetic material which is represented by a general formula R1.sub.x R2.sub.y A.sub.z Co.sub.u Fe.sub.100-x-y-z-u (where R1 is at least one element selected from rare earth elements, R2 is at least one element selected from the group consisting of Sc, Zr and Hf, A is at least one element selected from the group of C, N and P, and x,y,z and u are atomic percent defined as 2.ltoreq.x, 4.ltoreq.x+y.ltoreq.20, 0.ltoreq.z.ltoreq.20, 0.ltoreq.u.ltoreq.70), wherein the material includes a principal phase of TbCu.sub.7 structure and .alpha.-Fe, a peak width at half height of the main peak of X-ray diffraction of the principal phase obtained by using Cu-K.alpha. X-rays with the resolution of 0.02.degree. or less is about 0.8.degree. or less, and a ratio of peak intensity between the principal phase and .alpha.-Fe satisfies a relation that the value of I.sub.Fe /(I.sub.p +I.sub.Fe) is about 0.4 or less where I.sub.p is the peak intensity of main peak of X-ray diffraction of the principal phase obtained by using Cu-K.alpha. X-rays and I.sub.Fe is that of .alpha.-Fe.
摘要翻译：永久磁铁由通式为R1xR2yAzCouFe100-xyzu（其中R1为选自稀土元素中的至少一种元素，R2为选自Sc，Zr和Hf中的至少一种元素）的磁性材料构成 A是选自C，N和P组中的至少一种元素，x，y，z和u是原子百分比，其定义为2

7. 发明授权

US5456769A Magnetic material 失效
标题翻译：磁性材料
公开(公告)号：US5456769A
公开(公告)日：1995-10-10
申请号：US203371
申请日：1994-03-01
申请人： Shinya Sakurada , Takahiro Hirai , Akihiko Tsutai
发明人： Shinya Sakurada , Takahiro Hirai , Akihiko Tsutai
IPC分类号： C22C38/00 , H01F1/055
CPC分类号： C22C38/00 , H01F1/055
摘要： Disclosed is a magnetic material which exhibits an improved saturation magnetic flux density and an improved magnetic anisotropy and, thus, is adapted for use as a raw material of a permanent magnet or a bond magnet of a high performance. The magnetic material is represented by a general formulaR.sub.X Co.sub.y Fe.sub.100-x-y (I)where R is at least one element selected from the rare earth elements, x and y are atomic percent individually defined as 4.ltoreq.x.ltoreq.20 and 0.01.ltoreq.y.ltoreq.70, and Co and Fe occupy 90 atomic percent or more in the principal phase of the compound, and the principal phase has a TbCu.sub.7 crystal structure.
摘要翻译：公开了一种具有提高的饱和磁通密度和改善的磁各向异性的磁性材料，因此适合用作高性能永磁体或粘结磁铁的原料。磁性材料由通式RXCoyFe100-xy（I）表示，其中R是选自稀土元素中的至少一种元素，x和y分别是原子百分比定义为4≤x≤20和0.01 < / = y <70，Co和Fe在化合物的主相中占据90原子％以上，主相具有TbCu 7晶体结构。

8. 发明授权

US4935075A Permanent magnet 失效
标题翻译：永久磁铁
公开(公告)号：US4935075A
公开(公告)日：1990-06-19
申请号：US311389
申请日：1989-02-16
申请人： Tetsuhiko Mizoguchi , Isao Sakai , Hiromi Niu , Koichiro Inomata , Akihiko Tsutai
发明人： Tetsuhiko Mizoguchi , Isao Sakai , Hiromi Niu , Koichiro Inomata , Akihiko Tsutai
IPC分类号： H01F1/057
CPC分类号： H01F1/0577 , H01F1/057 , H01F1/0578
摘要： A permanent magnet essentially consists of 10 to 40% by weight of R, 0.1 to 8% by weight of boron, 13% by weight or less of gallium and iron, where R is at least one component selected from the group consisting of yttrium and the rare-earth elements.The magnet having this composition has a high coercive force iHC and a high residual magnetic flux density and therefore has a high maximum energy product.
摘要翻译：永磁体基本上由10〜40重量％的R，0.1〜8重量％的硼，13重量％以下的镓和铁组成，其中R为选自钇和稀土元素。具有这种组成的磁体具有高的矫顽力iHC和高剩余磁通密度，因此具有高的最大能量积。

9. 发明授权

US5482573A Magnetic material 失效
标题翻译：磁性材料
公开(公告)号：US5482573A
公开(公告)日：1996-01-09
申请号：US961821
申请日：1992-10-16
申请人： Shinya Sakurada , Takahiro Hirai , Akihiko Tsutai , Masashi Sahashi , Hideo Nagai , Tsutomu Yamashita
发明人： Shinya Sakurada , Takahiro Hirai , Akihiko Tsutai , Masashi Sahashi , Hideo Nagai , Tsutomu Yamashita
IPC分类号： H01F1/055 , H01F1/058 , H01F1/059
CPC分类号： H01F1/059 , H01F1/055 , H01F1/058
摘要： A magnetic material with an improved maximum energy product useful for high performance permanent magnet, bond magnet and other applications is disclosed. The magnetic material is expressed in a general formula R1.sub.x R2.sub.y M.sub.100-x-y where R1 is at least one element selected from the rare earth elements, R2 is at least one element selected from elements having an atomic radius in a range of 0.156 to 0.174 nm, M is at least one element selected from Fe and Co and x and y are atomic percent individually defined as x.gtoreq.2, y.gtoreq.0.01 and 4.ltoreq.x+y.ltoreq.20, and M occupying 90 atomic percent or more in the principal phase of the compound.
摘要翻译：公开了一种具有用于高性能永磁体，粘结磁体和其他应用的改进的最大能量积的磁性材料。磁性材料以通式R1xR2yM100-xy表示，其中R1是选自稀土元素中的至少一种元素，R2是选自原子半径在0.156至0.174nm范围内的元素中的至少一种元素，M是选自Fe和Co中的至少一种元素和x和y分别定义为x> / = 2，y> / = 0.01和4

10. 发明授权

US5480495A Magnetic material 失效
标题翻译：磁性材料
公开(公告)号：US5480495A
公开(公告)日：1996-01-02
申请号：US86379
申请日：1993-07-06
申请人： Shinya Sakurada , Takahiro Hirai , Akihiko Tsutai , Masashi Sahashi
发明人： Shinya Sakurada , Takahiro Hirai , Akihiko Tsutai , Masashi Sahashi
IPC分类号： H01F1/055 , H01F1/059
CPC分类号： H01F1/0593 , H01F1/055
摘要： Disclosed is a magnetic material which suppresses formation of impurity phase of Fe, Co or Fe-Co alloy, possesses a stable ThMn.sub.12 crystal structure as the principal phase, and is excellent in magnetic properties and lower in cost. Such magnetic material is expressed in a general formula:R1.sub.x R2.sub.y Si.sub.z M.sub.u T.sub.vwhere R1is at least one element selected from Zr and Hf, R2is at least one element selected from rare earth element, M is at least one element selected from C, N and P, T is at least one element selected from Fe and Co, x+y+z+u+v=100, x, y, z, u, v are atomic percent individually defined as 0.1.ltoreq.x.ltoreq.20, 2.ltoreq.y.ltoreq.20, 0.5.ltoreq.z.ltoreq.20, 0.ltoreq.u.ltoreq.20, v.gtoreq.50, and of which principal phase possesses a ThMn.sub.12 crystal structure.
摘要翻译：公开了抑制Fe，Co或Fe-Co合金的杂质相的形成的磁性材料，其具有稳定的ThMn12晶体结构作为主相，磁性优异，成本低。这种磁性材料以通式表示：R1xR2ySizMuTv其中R1为选自Zr和Hf中的至少一种元素，R2为选自稀土元素中的至少一种元素，M为选自C，N和P中的至少一种元素，T为选自Fe和Co中的至少一种元素，x + y + z + u + v = 100，x，y，z，u，v是原子百分数，各自定义为0.1≤x≤20,2/ = y / = 50，其主相具有ThMn12晶体结构。

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