公开(公告)号：US06636394B1

公开(公告)日：2003-10-21

申请号：US09511222

申请日：2000-02-23

申请人： Tomoki Fukagawa ,  Hiroshi Nishida ,  Masateru Nose ,  Fuminori Hikami

发明人： Tomoki Fukagawa ,  Hiroshi Nishida ,  Masateru Nose ,  Fuminori Hikami

IPC分类号： G11B539

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G01R33/093 ,  G11B5/3903

摘要： A spin-valve magnetic resistance sensor. In one embodiment, the spin-valve magnetic resistance sensor includes a pair of ferromagnetic layers with a non-magnetic layer sandwiched in between. The pair of ferromagnetic layers, the non-magnetic layer and an antiferromagnetic layer are laminated on a substrate. The antiferromagnetic layer is formed using an antiferromagnetic material which uses a Pt—Mn—X alloy, Ir—Mn—X alloy, Rh—Mn—X alloy, Ru—Mn—X alloy or Pd—Mn—X alloy. X indicates one or more elements selected from a set consisting of elements of groups IIA, IVA, VA, IIIB and IVB of the periodic table. X is in the range of 0.1 at % to 15 at %.

摘要翻译： 自旋阀磁阻传感器。 在一个实施例中，自旋阀磁阻传感器包括夹在其间的非磁性层的一对铁磁层。 将一对铁磁层，非磁性层和反铁磁层层合在基板上。 使用Pt-Mn-X合金，Ir-Mn-X合金，Rh-Mn-X合金，Ru-Mn-X合金或Pd-Mn-X合金的反铁磁材料形成反铁磁层。 X表示选自由元素周期表的组IIA，IVA，VA，IIIB和IVB的元素组成的集合中的一种或多种元素。 X在0.1at％至15at％的范围内。

公开(公告)号：US06322911B1

公开(公告)日：2001-11-27

申请号：US09495822

申请日：2000-02-01

申请人： Tomoki Fukagawa ,  Hiroshi Nishida ,  Masanori Ueno ,  Masateru Nose ,  Hideyasu Nagai ,  Fuminori Higami

发明人： Tomoki Fukagawa ,  Hiroshi Nishida ,  Masanori Ueno ,  Masateru Nose ,  Hideyasu Nagai ,  Fuminori Higami

IPC分类号： G11B566

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G01R33/093 ,  G11B5/3903 ,  G11B5/66 ,  G11B2005/3996 ,  Y10S428/90 ,  Y10T428/11

摘要： The present invention provides a spin-valve magnetic resistance sensor in which an underlayer, which has a second underlayer film with an fcc structure consisting of an alloy formed by combining one or more elements selected from a set consisting of elements of group VIIIa and group Ib of the periodic table, and one or more elements selected from a set consisting of elements of groups IIa, IVa, Va, VIa, IIb, Ib and IVb of the periodic table, such as NiFeCrTi or NiCrTi, etc., is formed on the substrate, and a magnetic resistance (MR) film which has an antiferromagnetic layer consisting of a Pt1−xMnx alloy or an Ir1−xMnx alloy is laminated on top of this underlayer. The composition ratio of the element with the smallest free energy of oxide formation among the elements contained in the alloy of the second underlayer film is in the range of 0.1 atomic % to 15 atomic %.

摘要翻译： 本发明提供了一种自旋阀磁阻传感器，其中具有第二下层膜，其具有通过组合一种或多种元素形成的合金形成的fcc结构的第二下层膜，所述组合选自由VIIIa族和Ib族组成的组 的周期表，以及从由元素周期表的组IIa，IVa，Va，VIa，IIb，Ib和IVb的元素组成的组中选择的一种或多种元素，例如NiFeCrTi或NiCrTi等，形成在 衬底和具有由Pt1-xMnx合金或Ir1-xMnx合金组成的反铁磁层的磁阻（MR）膜层压在该底层的顶部。 在第二下层膜的合金中包含的元素中，具有最小的氧化物形成自由能的元素的组成比在0.1原子％〜15原子％的范围内。

公开(公告)号：US4842657A

公开(公告)日：1989-06-27

申请号：US220046

申请日：1980-12-05

申请人： Tsuyoshi Masumoto ,  Kiyoyuki Esashi ,  Masateru Nose

发明人： Tsuyoshi Masumoto ,  Kiyoyuki Esashi ,  Masateru Nose

IPC分类号： C22C45/04 ,  C22C45/00 ,  C22C45/02 ,  H01F1/153

CPC分类号： H01F1/15308 ,  C22C45/008 ,  H01F1/153

摘要： Amorphous alloys containing zirconium as an amorphus forming metal and having the formula X.sub..alpha. Z.sub..gamma. wherein X is at least one of Fe, Co and Ni, .alpha. is 80 to 92 atomic %, Z is zirconium, .gamma. is 8 to 20 atomic % and the sum of .alpha. and .gamma. is 100 atomic %, cause very little variation of properties during aging and embrittlement because they contain no metalloid as the amorphous forming element, and they further have excellent strength, hardness, corrosion resistance and heat resistance and maintain superior magnetic properties which are characteristic of iron group elements.

公开(公告)号：US4953051A

公开(公告)日：1990-08-28

申请号：US247518

申请日：1988-09-22

申请人： Toshiaki Wada ,  Masateru Nose ,  Junichi Nakaoka ,  Akio Murata

发明人： Toshiaki Wada ,  Masateru Nose ,  Junichi Nakaoka ,  Akio Murata

IPC分类号： G11B5/105 ,  G11B5/127 ,  G11B5/31 ,  G11B5/48

CPC分类号： G11B5/3186 ,  G11B5/105 ,  G11B5/1278 ,  G11B5/3103 ,  G11B5/3176 ,  G11B5/488

摘要： A composite magnetic head is disclosed which is characterized by the fact that a magnetic head slider part and magnetic head core pieces both made of non-magnetic ceramic and provided on each of the opposed surfaces thereof with at least one layer of soft magnetic film produced in the form of sheet and subsequently shaped as required are integrally joined through the medium of glass members interposed between the opposed surfaces so as to give rise to a magnetic gap and an electromagnetic transducer coil is wound on the magnetic head core pieces.A composite magnetic head is further disclosed which is characterized by the fact that a magnetic head slider part and magnetic head core pieces, one made of an oxide magnetic material and the other made of a non-magnetic ceramic, are integrally joined through the medium of glass members interposed between pertinent opposed surfaces so as to give rise to a magnetic gap, the member made of the non-magnetic ceramic is provided on the opposed surface thereof with at least one layer of soft magnetic film produced in the form of sheet and subsequently shaped as required, and an electromagnetic transducer coil is wound on the magnetic head core pieces.

摘要翻译： 公开了一种复合磁头，其特征在于磁头滑块部分和磁头芯片均由非磁性陶瓷制成，并且在其相对的每个表面上设置有至少一层软磁膜， 通过介于相对表面之间的玻璃构件的介质将片材的形状随后成形为一体，从而产生磁隙，并将电磁换能器线圈缠绕在磁头芯片上。 进一步公开了一种复合磁头，其特征在于，磁头滑块部分和磁头芯片，一个由氧化物磁性材料制成，另一个由非磁性陶瓷制成，通过介质 玻璃构件插入在相对的相对表面之间以产生磁隙，由非磁性陶瓷制成的构件在其相对表面上设置有至少一层以薄片形式制造的软磁膜，随后 并且电磁换能器线圈缠绕在磁头芯片上。

公开(公告)号：US4828905A

公开(公告)日：1989-05-09

申请号：US60454

申请日：1987-06-11

申请人： Toshiaki Wada ,  Masateru Nose

发明人： Toshiaki Wada ,  Masateru Nose

IPC分类号： G11B5/73

CPC分类号： G11B5/7325 ,  Y10S428/90 ,  Y10T428/2495 ,  Y10T428/24967 ,  Y10T428/265

摘要： In a magnetic recording medium in which a metallic base layer and a magnetic layer are provided on a nonmagnetic nonmetallic substrate, an intermediate layer is additionally formed between the substrate and the metallic base layer in order to improve peeling-off resistance of the metallic base layer for durability against magnetic head contact-start-stop operation. The intermediate layer is a metal oxide layer including at least one of specified elements, or a composite layer made up of the metal oxide layer and a metal or alloy layer including at least one of the same specified elements and formed on the metal oxide layer. The specified element include Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W and Mn. Oxygen concentration in the oxide layer may decrease toward the metallic base layer. The oxide layer may be replaced by nitride layer of these metals.

摘要翻译： 在非磁性非金属基材上设置有金属基层和磁性层的磁记录介质中，为了提高金属基层的耐剥离性，在基板和金属基层之间附加形成中间层 用于耐磁头接触开始停止操作。 中间层是包括特定元素中的至少一个的金属氧化物层，或由金属氧化物层和包含相同的特定元素中的至少一个的金属或合金层构成的复合层，形成在金属氧化物层上。 规定的元素包括Ti，Zr，Hf，V，Nb，Ta，Cr，Mo，W和Mn。 氧化物层中的氧浓度可以朝向金属基底层减小。 氧化物层可以被这些金属的氮化物层代替。

公开(公告)号：US4623387A

公开(公告)日：1986-11-18

申请号：US698449

申请日：1985-02-05

申请人： Tsuyoshi Masumoto ,  Kiyoyuki Esashi ,  Masateru Nose

发明人： Tsuyoshi Masumoto ,  Kiyoyuki Esashi ,  Masateru Nose

IPC分类号： C22C45/04 ,  C22C45/00 ,  C22C45/02 ,  H01F1/153 ,  C22C33/00

CPC分类号： H01F1/15308 ,  C22C45/008 ,  H01F1/153

摘要： Amorphous alloys containing zirconium as an amorphous forming metal and having teh formula X.sub..alpha. Z.sub..gamma. wherein X is at least one of Fe, Co and Ni, .alpha. is 80 to 92 atomic %, Z is zirconium, .gamma. is 8 to 20 atomic % and the sum of .alpha. and .gamma. is 100 atomic %, cause little variation of properties during aging and embrittlement because they contain no metalloid as the amorphous forming element, and they further have excellent strength, hardness, corrosion resistance and heat resistance and maintain superior magnetic properties which are characteristic of iron group elements.

摘要翻译： 含有锆作为无定形形成金属并具有式XαZγ的非晶合金，其中X是Fe，Co和Ni中的至少一种，α为80至92原子％，Z为锆，γ为8至20原子％，γ为8至20原子％， α和γ的总和为100原子％，因为它们不含非金属成形元素的非金属成型元素，因此在老化和脆化方面的性能几乎不变化，并且它们还具有优异的强度，硬度，耐腐蚀性和耐热性，并且保持优异的磁性 这是铁族元素的特征。