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1. 发明授权

US4635153A Magnetic transducer head 失效
标题翻译：磁性换能器头
公开(公告)号：US4635153A
公开(公告)日：1987-01-06
申请号：US527464
申请日：1983-08-29
申请人： Toshiki Shimamura , Kiyonori Hayakawa
发明人： Toshiki Shimamura , Kiyonori Hayakawa
IPC分类号： G11B5/127 , G11B5/187
CPC分类号： G11B5/1278
摘要： Magnetic transducer head for perpendicular mode recording is disclosed which comprises a main magnetic pole made of a thin film of soft magnetic material and a pair of guard blocks bonded to the main magnetic pole as a unitary body so as to grip the main magnetic pole from both sides thereof, wherein the guard blocks are each formed of a nonmagnetic material portion extended from a magnetic record medium contact surface to a predetermined position and a magnetic material portion, grooves are formed on bonded boundary surfaces between the nonmagnetic material portions and the magnetic material portions, the grooves for separating auxiliary magnetic pole portions magnetically connected to the main magnetic pole to become auxiliary magnetic poles of a predetermined width from return path portions which become return path of magnetic fluxes from the main magnetic pole, boundary surfaces between the nonmagnetic material portions and the magnetic material portions come apart (diverge away) from the magnetic record medium contact surface at a plane perpendicular to the main magnetic pole formed on a pointed portion of the auxiliary magnetic poles, the grooves are covered with the nonmagnetic material portions over a range from the auxiliary magnetic pole portions to the return path portions and a coil is wound around the main magnetic pole through the grooves.
摘要翻译：公开了用于垂直模式记录的磁性换能器头，其包括由软磁性材料薄膜制成的主磁极和与主磁极接合作为整体的一对保护块，以便从两个主体磁极其中保护块各自由从磁记录介质接触表面延伸到预定位置的非磁性材料部分和磁性材料部分形成在非磁性材料部分和磁性材料部分之间的接合界面上的槽用于分离磁性地连接到主磁极的辅助磁极部分的槽，以成为从主磁极返回磁路的返回路径的返回路径部分成为预定宽度的辅助磁极，非磁性材料部分之间的边界面和磁性材料部分分开（发散）f 在垂直于形成在辅助磁极的尖锐部分上的主磁极的平面处的磁记录介质接触表面上，在辅助磁极部分到返回路径部分的范围内，这些凹槽被非磁性材料部分覆盖并且线圈通过沟槽缠绕在主磁极周围。

2. 发明授权

US3947891A Static magnetic erasing head 失效
标题翻译：静磁擦头
公开(公告)号：US3947891A
公开(公告)日：1976-03-30
申请号：US509947
申请日：1974-09-27
申请人： Makoto Saito , Kengo Matsumoto , Kiyonori Hayakawa
发明人： Makoto Saito , Kengo Matsumoto , Kiyonori Hayakawa
IPC分类号： G11B5/03 , G11B23/00 , G11B5/12 , G11B5/27
CPC分类号： G11B23/0007 , G11B5/03
摘要： The present invention relates to an erasing head for a magnetic recording apparatus using a static magnetic field. The erasing head consists of a plurality of magnetic poles having surfaces which confront the recording tape. The first and second poles have polarities opposite to each other. The first pole is arranged to engage a recording track along its full width and magnetizes it to a given polarity. The second pole is arranged to engage the upper half of the track and magnetize it to the opposite polarity. Each half track is magnetized to opposite polarities so that the distortion of output signals is reduced, when the signal is reproduced by a reproducing head engaging both half tracks.
摘要翻译：本发明涉及一种使用静磁场的磁记录装置的擦除头。擦除头由具有面对记录带的表面的多个磁极组成。第一和第二极具有彼此相反的极性。第一极被布置成沿着其全宽接合记录轨道并将其磁化为给定的极性。第二极被布置成接合轨道的上半部并将其磁化成相反的极性。每个半轨道被磁化成相反的极性，从而当信号由再现头再现时，输出信号的失真减少，两个半轨迹都被复制。

3. 发明授权

US4615748A Amorphous soft magnetic thin film 失效
标题翻译：非晶软磁薄膜
公开(公告)号：US4615748A
公开(公告)日：1986-10-07
申请号：US788140
申请日：1985-10-16
申请人： Hiroshi Takino , Kiyonori Hayakawa , Kazuko Kawabata , Makoto Tsuruoka
发明人： Hiroshi Takino , Kiyonori Hayakawa , Kazuko Kawabata , Makoto Tsuruoka
IPC分类号： H01F10/16 , C22C19/07 , C22C45/04 , H01F1/153 , H01F10/12 , H01F10/13 , C04B35/00
CPC分类号： H01F10/132 , H01F1/15316 , Y10T428/12431
摘要： An improved amorphous soft magnetic material particularly useful as a thin film for a magnetic recording and reproducing head. The amorphous material has the formula:Co.sub.1-x-y Hf.sub.x Pd.sub.ywherex is in the range from 0.04 to 0.08 andy is in the range from 0.005 to 0.15.The thin film is characterized by a high saturation magnetic flux density and a low saturation magnetostriction constant.
摘要翻译：特别用作磁记录和再现头的薄膜的改进的非晶软磁材料。无定形材料具有下式：Co1-x-yHfxPdy，其中x在0.04至0.08的范围内，y在0.005至0.15的范围内。该薄膜的特征在于高饱和磁通密度和低饱和磁致伸缩常数。

4. 发明授权

US4858048A Complex magnetic transducer head of single magnetic pole type for perpendicular mode recording 失效
标题翻译：单磁极型复磁传感器头用于垂直模式记录
公开(公告)号：US4858048A
公开(公告)日：1989-08-15
申请号：US85322
申请日：1987-08-10
申请人： Kiyonori Hayakawa , Akio Mishima
发明人： Kiyonori Hayakawa , Akio Mishima
IPC分类号： G11B5/127
CPC分类号： G11B5/1278
摘要： A complex magnetic transducer head with a single magnetic pole includes a recording and reproducing main magnetic pole made of a thin film of soft magnetic material with a predetermined width and in contact with a magnetic recording medium. A non-magnetic guard member is adjacent each side of the recording and reproducing main magnetic pole and a magnetic core portion is integrated with each guard member. Grooves are formed in the magnetic core portion for separating a first auxiliary magnetic pole portion in contact with the recording and reproducing main magnetic pole from a magnetic flux return path portion. The winding is wound around the recording reproducing main magnetic pole through the grooves. An erasing head portion having a pair of erasing main magnetic poles faces the magnetic record medium and is spaced from the recording and reproducing main magnetic pole by a predetermined distance along the running direction of the magnetic record medium, and the pair of erasing main magnetic poles are spaced apart in a direction transverse to the running direction by a distance smaller than the width of the recording and reproducing main magnetic pole. A erasing winding is provided for exciting the erasing main magnetic poles. Previously recorded data on the magnetic record medium is erased, despite small displacements which may occur between the previously recorded track on the magnetic record medium and the recording and reproducing main magnetic pole.
摘要翻译：具有单个磁极的复合磁传感器头包括由具有预定宽度的软磁材料薄膜制成的与磁记录介质接触的记录和再现主磁极。非磁性保护构件与记录和再现主磁极的每一侧相邻，并且磁芯部分与每个防护构件一体化。沟槽形成在磁芯部分中，用于从磁通返回路径部分分离与记录和再现主磁极接触的第一辅助磁极部分。绕组通过凹槽缠绕在记录再现主磁极上。具有一对擦除主磁极的擦除头部部分面向磁记录介质，并且与记录和再现主磁极沿着磁记录介质的运行方向隔开预定距离，并且一对擦除主磁极在横向于运行方向的方向上间隔开距离小于记录和再现主磁极的宽度的距离。提供擦除绕组以激励擦除主磁极。尽管在磁记录介质上的先前记录的轨道与记录和再现主磁极之间可能发生较小位移，但是磁记录介质上的先前记录的数据被擦除。

5. 发明授权

US4747888A Amorphous soft magnetic thin film 失效
标题翻译：非晶软磁薄膜
公开(公告)号：US4747888A
公开(公告)日：1988-05-31
申请号：US829162
申请日：1986-02-14
申请人： Hiroshi Takino , Kiyonori Hayakawa , Kazuko Kawabata , Makoto Tsuruoka
发明人： Hiroshi Takino , Kiyonori Hayakawa , Kazuko Kawabata , Makoto Tsuruoka
IPC分类号： H01F10/16 , C22C19/07 , C22C45/04 , H01F1/153 , H01F10/12 , H01F10/13 , H01F1/04
CPC分类号： H01F1/15316 , H01F10/132 , H01F10/265 , Y10T428/12431
摘要： An improved alloy used in the form of an amorphous soft magnetic thin film having a desirable combination of saturation magnetic flux density and saturation magnetostriction constant, the alloy having the compositional formula:Co.sub.x Zr.sub.y Pd.sub.zwherein:0.85.ltoreq.x.ltoreq.0.940.04.ltoreq.y.ltoreq.0.070.01.ltoreq.z.ltoreq.0.10.
摘要翻译：一种改进的合金，以非晶软磁薄膜的形式使用，其具有饱和磁通密度和饱和磁致伸缩常数的理想组合，该合金具有组成式：CoxZryPdz其中：0.85

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