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1. 发明授权

US5416656A Magnetic recording and reproducing head having a flat surface with round front ridge 失效
标题翻译：具有圆形前缘的平坦表面的磁记录和再现头
公开(公告)号：US5416656A
公开(公告)日：1995-05-16
申请号：US801626
申请日：1991-12-04
申请人： Kazumasa Fukuda , Monjiro Momoi , Takamitsu Tsuna , Mikio Matsuzaki
发明人： Kazumasa Fukuda , Monjiro Momoi , Takamitsu Tsuna , Mikio Matsuzaki
IPC分类号： G11B5/82 , G11B5/012 , G11B5/02 , G11B5/127 , G11B5/187 , G11B5/60 , G11B19/20 , G11B21/21
CPC分类号： G11B5/012 , G11B19/20 , G11B5/6005
摘要： A magnetic recording and reproducing apparatus having a magnetic disk, a magnetic head and a magnetic head supporting device. The surface roughness R.sub.max of the magnetic disk is at most 10 nm, and the magnetic head has a slider on which reading and writing elements are mounted. The slider is of a generally rectangular prism shape with the entire area of a medium opposing surface which opposes the magnetic disk being flat. The surface area of the medium opposing surface is 2 mm.sup.2 or less. The apparatus has a first relative speed at which the frictional coefficient between the magnetic disk and the magnetic head is changed from a high value to a low value when the speed increases, and a second relative speed at which the frictional coefficient is changed from a low value to a high value when the speed decreases. A ridge portion between the front surface and the medium opposing surface has a round corner, wherein the length of the round corner in the direction of the medium opposing surface is larger than the length of the round corner in the direction of the front surface.
摘要翻译：具有磁盘，磁头和磁头支撑装置的磁记录和重放装置。磁盘的表面粗糙度Rmax为10nm以下，磁头具有安装有读取和写入元件的滑块。滑块是大致矩形的棱镜形状，其中与磁盘相对的介质相对表面的整个区域是平坦的。介质相对表面的表面积为2mm 2以下。该装置具有第一相对速度，在该速度增加时，磁盘和磁头之间的摩擦系数从高值变为低值，摩擦系数从低的角度变化的第二相对速度当速度降低时，值变为高值。前表面和介质相对表面之间的脊部具有圆角，其中圆形在介质相对表面方向上的长度大于前表面方向上圆角的长度。

2. 发明授权

US5126901A Thin film magnetic head having a narrow upper surface 失效
标题翻译：具有窄上表面的薄膜磁头
公开(公告)号：US5126901A
公开(公告)日：1992-06-30
申请号：US533767
申请日：1990-06-06
申请人： Monjiro Momoi , Kazumasa Fukuda , Mikio Matsuzaki
发明人： Monjiro Momoi , Kazumasa Fukuda , Mikio Matsuzaki
IPC分类号： G11B5/31 , G11B5/105 , G11B5/60 , G11B21/21
CPC分类号： G11B5/6005 , G11B5/105 , G11B5/3106
摘要： A thin film magnetic head consisting of a slider, and a read/write element attached to an end surface of the slider. The element is disposed between the top and bottom surfaces of the slider, on a longitudinal end surface of the slider. The top surface of the thin film magnetic head has an uppermost portion which is flat and narrower than the bottom surface.
摘要翻译：一个由滑块组成的薄膜磁头，以及附着在滑盖的端面的读/写元件。元件设置在滑块的顶表面和底表面之间，在滑块的纵向端表面上。薄膜磁头的上表面具有平坦且比底面更窄的最上部。

3. 发明授权

US5094897A Magnetic recording medium comprising a glass substrate and a gamma Fe.sub.2 .sub.3 magnetic thin film with specified X-ray diffraction and surface roughness 失效
$Magnetic recording medium comprising a glass substrate and a gamma Fe.sub.2 .sub.3 magnetic thin film with specified X-ray diffraction and surface roughness$
标题翻译：磁记录介质包括玻璃基板和具有规定的X射线衍射和表面粗糙度的γFe2 O 3磁性薄膜
公开(公告)号：US5094897A
公开(公告)日：1992-03-10
申请号：US514401
申请日：1990-04-26
申请人： Haruyuki Morita , Monjiro Momoi , Kazumasa Fukuda
发明人： Haruyuki Morita , Monjiro Momoi , Kazumasa Fukuda
IPC分类号： G11B5/64
CPC分类号： G11B5/653 , Y10S428/90 , Y10T428/31
摘要： A magnetic recording disk comprising a rigid substrate and a magnetic layer of the continuous thin film type is durable and exhibits good electromagnetic properties when the magnetic layer predominantly composed of .gamma.-Fe.sub.2 O.sub.3 has specific peak area ratios in an X-ray diffraction chart thereof. Inclusion of .alpha.-Fe.sub.2 O.sub.3 in the magnetic layer is also effective. Reliable recording/reproduction can be conducted on the magnetic recording disk using a flying magnetic head.
摘要翻译：包含刚性基板和连续薄膜型磁性层的磁记录盘在X射线衍射图中主要由γ-Fe 2 O 3组成的磁性层具有特定的峰面积比是耐用的并且具有良好的电磁特性。在磁性层中包含α-Fe2O3也是有效的。可以使用飞行磁头在磁记录盘上进行可靠的记录/再现。

4. 发明授权

US5094896A Magnetic recording medium comprising a glass substrate having a magnetic thin film of .gamma. Fe.sub.2 O.sub.3 which layer has a resistivity of from 0.03 to 3 .OMEGA.-cm 失效
标题翻译：磁记录介质包括具有γFe2 O 3的磁性薄膜的玻璃基板，该层的电阻率为0.03〜3欧姆 - 厘米
公开(公告)号：US5094896A
公开(公告)日：1992-03-10
申请号：US514964
申请日：1990-04-26
申请人： Haruyuki Morita , Monjiro Momoi , Kazumasa Fukuda
发明人： Haruyuki Morita , Monjiro Momoi , Kazumasa Fukuda
IPC分类号： G11B5/66 , G11B5/02 , G11B5/64 , G11B5/65 , G11B5/706 , G11B5/73 , G11B5/82
CPC分类号： G11B5/7315 , G11B5/653 , Y10S428/90 , Y10T428/31
摘要： A magnetic recording disk comprising a rigid substrate and a magnetic layer of the continuous thin film type is durable and exhibits good electromagnetic properties and frequency response when the magnetic layer is predominantly composed of .gamma.-Fe.sub.2 O.sub.3 and has a resistivity of 0.03 to 3 .OMEGA.-cm. Reliable recording/reproduction can be conducted on the magnetic recording disk using a flying magnetic head.
摘要翻译：包括刚性基板和连续薄膜型磁性层的磁记录盘是耐用的，并且当磁性层主要由γ-Fe2O3组成并且电阻率为0.03〜3Ω/ cm 2时，表现出良好的电磁特性和频率响应。可以使用飞行磁头在磁记录盘上进行可靠的记录/再现。

5. 发明授权

US06198600B1 Thin film magnetic head and manufacturing method thereof 失效
标题翻译：薄膜磁头及其制造方法
公开(公告)号：US06198600B1
公开(公告)日：2001-03-06
申请号：US09327447
申请日：1999-06-08
申请人： Mitsuhiro Kitao , Hiroki Nakazawa , Keiichi Shibata , Monjiro Momoi , Noboru Yamanaka
发明人： Mitsuhiro Kitao , Hiroki Nakazawa , Keiichi Shibata , Monjiro Momoi , Noboru Yamanaka
IPC分类号： G11B2121
CPC分类号： G11B5/6005 , G11B5/3106 , G11B5/3116 , G11B5/3163 , G11B21/21
摘要： The present invention is directed to a thin film magnetic head and its manufacturing method. A slider 1 is provided with base body surfaces 13 and 14 at its surface facing opposite a medium. An inductive thin film magnetic transducer 2 is provided with a first pole tip P1 and a second pole tip P2 whose front ends emerge at the base body surfaces 13 and 14 and indented portions 4 and 5 provided at the base body surfaces 13 and 14. A protective film 10 covers the base body surfaces 13 and 14 and indented portions 4 and 5. The thickness of the protective film 10 at the indented portions 4 and 5 is larger than the thickness at the base body surfaces 13 and 14. The magnetic films constituting the pole tips P1 and P2 can thus be reliably protected from oxidation, corrosion and the like, while minimizing the spacing loss.
摘要翻译：本发明涉及一种薄膜磁头及其制造方法。滑块1在其与介质相对的表面上设置有基体表面13和14。感应薄膜磁换能器2设置有第一极尖P1和第二极尖P2，其前端在基体表面13和14处出现，凹部4和5设置在基体表面13和14处。保护膜10覆盖基体表面13,14以及凹入部分4和5.在凹陷部分4和5处的保护膜10的厚度大于基体表面13和14处的厚度。构成因此能够可靠地防止极尖P1和P2免于氧化，腐蚀等，同时最小化间隔损耗。

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