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1. 发明授权

US5182690A Fe-N-based soft magnetic thin films and magnetic heads using such films 失效
标题翻译：基于FE-N的软磁膜和使用这种膜的磁头
公开(公告)号：US5182690A
公开(公告)日：1993-01-26
申请号：US636072
申请日：1990-12-28
申请人： Kenji Katori , Masatoshi Hayakawa , Koichi Aso , Kazuhiko Hayashi , Kazuo Kajiwara
发明人： Kenji Katori , Masatoshi Hayakawa , Koichi Aso , Kazuhiko Hayashi , Kazuo Kajiwara
IPC分类号： G11B5/187 , H01F10/14
CPC分类号： G11B5/1878 , H01F10/147 , H01F10/265
摘要： Additive elements are added to Fe-N soft magnetic thin films along with oxygen, so that the thermal stability is remarkably improved. After annealing treatment at approximately 550.degree. C., it is possible to provide an Fe-N soft magnetic thin film with a low coercive force. Similarly, it is also possible to provide a soft magnetic thin film having a low coercive force by introducing a combination of specific types of additive elements to Fe-N soft magnetic thin films. When oxygen is further added to the film, it is also possible to provide a soft magnetic thin film which has very excellent soft magnetic characteristics and good thermal stability. The soft magnetic thin films of the invention have good soft magnetic characteristics, a high saturation magnetic flux density and good thermal stability. A magnetic head of a metal-in-gap type using the soft magnetic thin film is also described.

2. 发明授权

US5057380A Soft magnetic thin films of alloys of FeCoNi or FeCoDy and laminates comprising alternate layers of face centered cubic and body centered cubic crystal structure 失效
标题翻译：柔软的磁性薄膜，包括面向中心的立方体和身体中心的结构的替代层的FECONI或FECODY和层压体的合金薄膜
公开(公告)号：US5057380A
公开(公告)日：1991-10-15
申请号：US212183
申请日：1988-06-27
申请人： Kazuhiko Hayashi , Masatoshi Hayakawa , Kenji Katori , Koichi Aso
发明人： Kazuhiko Hayashi , Masatoshi Hayakawa , Kenji Katori , Koichi Aso
IPC分类号： G11B5/31 , H01F10/16
CPC分类号： H01F10/16 , G11B5/31 , H01F10/265 , Y10S428/90 , Y10T428/12465 , Y10T428/12493
摘要： Disclosed is a soft magnetic thin film having a basic composition of FecoNi or FeCoDy which is specified for use as a single layer film for increasing the saturation magnetic flux density and the coercive force.The soft magnetic properties are achieved by laminating the above defined soft magnetic thin film as the first soft magnetic thin film layer with a second magnetic thin film layer. In this case, crystal structures of the first and the second soft magnetic thin films should appropriately be selected and combined.

3. 发明授权

US5266418A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US5266418A
公开(公告)日：1993-11-30
申请号：US573791
申请日：1990-08-28
申请人： Kazuhiko Hayashi , Akihiko Okabe , Masatoshi Hayakawa , Koichi Aso
发明人： Kazuhiko Hayashi , Akihiko Okabe , Masatoshi Hayakawa , Koichi Aso
IPC分类号： G11B5/66 , G11B5/64 , G11B5/73
CPC分类号： G11B5/656 , Y10S428/90 , Y10T428/12465 , Y10T428/12861 , Y10T428/12875
摘要： A magnetic recording medium having a magnetic thin film of a composition expressed as (Co.sub.a Pt.sub.b M.sub.c.sup.I M.sub.d.sup.II) Ox (where a, b, c, d are atomic percent; and x is weight percent). In this composition, a+b+c+d=100, 0

4. 发明授权

US4707417A Magnetic composite film 失效
标题翻译：磁性复合膜
公开(公告)号：US4707417A
公开(公告)日：1987-11-17
申请号：US755675
申请日：1985-07-16
申请人： Masatoshi Hayakawa , Koichi Aso , Yoshitaka Ochiai , Hideki Matsuda , Kazuhiko Hayashi , Wataru Ishikawa , You Iwasaki
发明人： Masatoshi Hayakawa , Koichi Aso , Yoshitaka Ochiai , Hideki Matsuda , Kazuhiko Hayashi , Wataru Ishikawa , You Iwasaki
IPC分类号： G11B5/147 , G11B5/31 , H01F10/00 , H01F10/14 , H01F10/32 , C03C27/02
CPC分类号： B82Y25/00 , G11B5/31 , H01F10/142 , H01F10/32 , Y10S428/928 , Y10T428/115 , Y10T428/12465 , Y10T428/12597 , Y10T428/12931 , Y10T428/12937 , Y10T428/12944 , Y10T428/12951 , Y10T428/12958
摘要： A magnetic alloy thin film consisting essentially of a first Fe-Al-Si or Fe-Ni alloy thin film of high permeability and a second Fe-Si alloy thin film directly formed on the first thin film and having high saturation magnetic flux density. The ratio in thickness of the first and second films is preferably in the range of from 1:0.1 to 2.
摘要翻译：一种磁性合金薄膜，其基本上由高磁导率的第一Fe-Al-Si或Fe-Ni合金薄膜和直接形成在第一薄膜上并具有高饱和磁通密度的第二Fe-Si合金薄膜组成。第一和第二膜的厚度比优选在1:0.1至2的范围内。

5. 发明授权

US4640871A Magnetic material having high permeability in the high frequency range 失效
标题翻译：在高频范围内具有高磁导率的磁性材料
公开(公告)号：US4640871A
公开(公告)日：1987-02-03
申请号：US773019
申请日：1985-09-06
申请人： Kazuhiko Hayashi , Yoshitaka Ochiai , Masatoshi Hayakawa , Hideki Matsuda , Wataru Ishikawa , You Iwasaki , Koichi Aso
发明人： Kazuhiko Hayashi , Yoshitaka Ochiai , Masatoshi Hayakawa , Hideki Matsuda , Wataru Ishikawa , You Iwasaki , Koichi Aso
IPC分类号： G11B5/147 , H01F1/18 , B32B15/04
CPC分类号： H01F1/18 , Y10S428/928 , Y10T428/1129 , Y10T428/12465 , Y10T428/12597 , Y10T428/12632 , Y10T428/12861
摘要： A magnetic structure having improved permeability characteristics at very high frequencies and comprising a plurality of magnetic metal layers, together with electrically insulating layers which are interposed between successive magnetic metal layers to form a laminate therewith, and at least one conductive strip electrically connecting together at least two of the magnetic metal layers, the conductive strip being of lesser width than the surface on which it is located, and serving to reduce eddy current losses.
摘要翻译：一种具有在非常高频率下具有改进的磁导率特性并包括多个磁性金属层的磁性结构，以及介于连续磁性金属层之间的电绝缘层以形成层压体，以及至少一个导电带，至少电连接在一起两个磁性金属层，导电条的宽度小于其所在的表面，并且用于减少涡流损耗。

6. 发明授权

US4475962A Annealing method for amorphous magnetic alloy 失效
标题翻译：非晶磁合金退火方法
公开(公告)号：US4475962A
公开(公告)日：1984-10-09
申请号：US511645
申请日：1983-07-07
申请人： Masatoshi Hayakawa , Koichi Aso , Satoru Uedaira , Yoshitaka Ochiai , Hideki Matsuda , Kazuhide Hotai , Kazuhiko Hayashi
发明人： Masatoshi Hayakawa , Koichi Aso , Satoru Uedaira , Yoshitaka Ochiai , Hideki Matsuda , Kazuhide Hotai , Kazuhiko Hayashi
IPC分类号： C21D1/04 , C21D6/00 , C22C45/02 , C22F1/00 , C22F1/10 , G11B5/127 , G11B5/147 , H01F1/153
CPC分类号： H01F1/15341 , C21D1/04
摘要： Annealing method for an amorphous magnetic alloy including the steps of preparing an amorphous magnetic alloy film, and annealing the amorphous magnetic alloy film at an elevated temperature lower than Curie temperature and crystallization temperature of the amorphous magnetic alloy film under an application of a repetition of alternately applied a first magnetic field and a second magnetic field, in which the first magnetic field is applied along one direction in a major surface of the amorphous magnetic alloy film for a predetermined period, and the second magnetic field is applied along a second direction perpendicular to the one direction in the major surface of the amorphous magnetic alloy film for the predetermined period.
摘要翻译：该非晶磁性合金的退火方法包括以下步骤：制备无定形磁性合金膜，并且在非晶磁性合金膜的高于不超过居里温度的升高温度和非晶磁性合金膜的结晶温度下退火，施加第一磁场和第二磁场，其中在非晶磁性合金膜的主表面中沿着一个方向施加第一磁场一段预定时间，并且第二磁场沿垂直于第二磁场的第二方向施加在非晶磁性合金膜主表面上的一个方向预定的时间段。

7. 发明授权

US5331491A High-density magnetic recording and reproducing head 失效
标题翻译：高密度磁记录和再现头
公开(公告)号：US5331491A
公开(公告)日：1994-07-19
申请号：US847923
申请日：1992-03-09
申请人： Masatoshi Hayakawa , Yasunari Sugiyama , Koichi Aso
发明人： Masatoshi Hayakawa , Yasunari Sugiyama , Koichi Aso
IPC分类号： G11B5/127 , G11B5/33
CPC分类号： G11B5/33 , G11B5/1278
摘要： A magnetic recording and reproducing head records a signal from and reproduces a signal from a magnetic recording medium having a perpendicularly magnetizable film. The magnetic recording and reproducing head includes a magnetic sensing section comprising a slender needle of a soft magnetic material, and an exciting coil wound around the slender needle for magnetizing the slender needle to record a signal on the magnetic recording medium. To reproduced the recorded signal, high-frequency electric energy is applied to the magnetic sensing section to produce a reflected wave, and a change in the reflected wave caused by a leakage magnetic field produced by a signal recorded on the magnetic recording medium is detected as representing the recorded signal.
摘要翻译：磁记录和再现头记录来自具有垂直磁化膜的磁记录介质的信号并再现信号。磁记录和重放头包括一个磁感应部分，它包括一个软磁材料的细针，以及一个缠绕在细针上的激励线圈，用于磁化细针以在磁记录介质上记录信号。为了再现记录的信号，将高频电能施加到磁感测部分以产生反射波，并且由记录在磁记录介质上的信号产生的泄漏磁场引起的反射波的变化被检测为表示记录的信号。

8. 发明授权

US4444602A Method of manufacturing amorphous magnetic alloy ribbon and use for magnetostriction delay lines 失效
标题翻译：制造无定形磁性合金带的方法和用于磁致伸缩延迟线
公开(公告)号：US4444602A
公开(公告)日：1984-04-24
申请号：US350578
申请日：1982-02-22
申请人： Yoshimi Makino , Yoshitaka Ochiai , Koichi Aso , Satoru Uedaira , Masatoshi Hayakawa , Kazuhide Hotai
发明人： Yoshimi Makino , Yoshitaka Ochiai , Koichi Aso , Satoru Uedaira , Masatoshi Hayakawa , Kazuhide Hotai
IPC分类号： H01F1/00 , C21D6/00 , C21D8/12 , H01F1/153 , H03H3/007
CPC分类号： H01F1/15341 , C21D8/125 , C21D8/1211
摘要： The amorphous magnetic alloy ribbon for magnetostriction delay lines are prepared by annealing the ribbon having a negative magnetostriction constant at a temperature lower than the crystallization temperature of the alloy under a tension sufficiently enough to support the ribbon substantially straight between the both ends thereof.The ribbon thus prepared permits a decrease in a deviation in a distribution of internal stresses and the propagation speeds of magnetostriction vibration through the ribbon.
摘要翻译：用于磁致伸缩延迟线的无定形磁性合金带通过在足够足以在其两端之间基本上直线地支撑带状的张力下，在低于合金的结晶温度的温度下退火具有负的磁致伸缩常数的带来制备。如此制备的带允许减小内应力分布的偏差和通过带的磁致伸缩振动的传播速度。

9. 发明授权

US4311539A Method of manufacturing a high permeability amorphous magnetic alloy 失效
标题翻译：制造高磁导率非晶态磁性合金的方法
公开(公告)号：US4311539A
公开(公告)日：1982-01-19
申请号：US153869
申请日：1980-05-28
申请人： Satoru Uedaira , Shigeyasu Ito , Koichi Aso , Masatoshi Hayakawa
发明人： Satoru Uedaira , Shigeyasu Ito , Koichi Aso , Masatoshi Hayakawa
IPC分类号： C22F1/00 , C21D6/00 , C22C19/07 , C22C45/04 , C22F1/10 , H01F1/153 , H01F1/00
CPC分类号： C22C45/04 , C21D6/00 , H01F1/15341
摘要： A method of manufacturing an high permeability amorphous magnetic alloy is disclosed. In the method, an amorphous alloy ribbon is annealed at an elevated temperature T(.degree.K.) satisfying the relation 0.95.times.Tc (.degree.K.).ltoreq.T(.degree.K.)
摘要翻译：公开了一种制造高磁导率非晶磁合金的方法。在该方法中，非晶合金带在满足0.95xTc（DEG K。）

10. 发明授权

US4796241A Device for producing a high frequency modulation magnetic field used in magneto-optical recording 失效
标题翻译：用于制造用于磁光记录的高频调制磁场的装置
公开(公告)号：US4796241A
公开(公告)日：1989-01-03
申请号：US5779
申请日：1987-01-21
申请人： Masatoshi Hayakawa , Takehiro Nagaki , Koichi Aso , Hiroshi Yamanoi
发明人： Masatoshi Hayakawa , Takehiro Nagaki , Koichi Aso , Hiroshi Yamanoi
IPC分类号： G11B11/105 , G11B5/03 , G11B11/12
CPC分类号： G11B11/10532
摘要： A device for producing a high frequency modulating magnetic field is disclosed. The device is especially useful to achieve real-time overwriting in magneto-optical recording. The device produces magnetic field modulated according to a signal to be recorded on a magneto-optical recording medium in which the signal is recorded in the form of magnetization direction on the magneto-optical recording medium under irradiation of a laser beam to raise the temperature of the medium. The device comprises a main magnetic pole formed of a low-loss soft magnetic material and having one end facing to the magnetic-optical recording medium and a sheathed conductor wound around the main magnetic pole and consisting of a parallel connection of a plurality of insulated elementary wires.
摘要翻译：公开了一种用于产生高频调制磁场的装置。该装置对于实现磁光记录中的实时重写特别有用。该装置根据要记录在磁光记录介质上的信号产生磁场调制，其中在激光束照射下在磁光记录介质上以磁化方向的形式记录信号，以提高温度介质。该器件包括由低损耗软磁材料形成的主磁极，其一端面向磁光记录介质，以及缠绕在主磁极上的护套导体，并由多个绝缘元件电线

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