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51.发明授权Magnetic recording apparatus with magnetic head on slider having applied load larger than buoyant force acting on slider so that gap between magnetic head and magnetic disk is smaller than total thickness of protective layer and lubricating layer on disk 失效在滑块上具有磁头的磁记录装置，其负载大于作用在滑块上的浮力，使得磁头和磁盘之间的间隙小于磁盘上的保护层和润滑层的总厚度
公开(公告)号：US5541789A
公开(公告)日：1996-07-30
申请号：US450148
申请日：1995-05-26
申请人： Hirotsugu Fukuoka , Hiroshi Fukui , Mitsuo Suda , Yutaka Sugita , Kanji Kawakami
发明人： Hirotsugu Fukuoka , Hiroshi Fukui , Mitsuo Suda , Yutaka Sugita , Kanji Kawakami
CPC分类号： G11B5/6005
摘要： A magnetic recording device includes a magnetic disk for storing information, a magnetic head for writing and reading information relative to the magnetic disk, a device for rotating the magnetic disk relative to the magnetic head in such a manner that speed of said magnetic disk relative to the magnetic head is 6 to 40 m/s at an innermost track of the magnetic disk, and a device for applying a load to the magnetic head so that a gap between the magnetic disk and the magnetic head disposed in opposed relation to the magnetic disk can be kept to not more than 0.1 .mu.m.
摘要翻译： 磁记录装置包括用于存储信息的磁盘，用于写入和读取相对于磁盘的信息的磁头，用于使磁盘相对于磁头旋转的装置，使得所述磁盘的速度相对于 磁头在磁盘的最内侧轨道上为6〜40m / s，以及用于向磁头施加负荷使得与磁盘相对设置的磁盘与磁头之间的间隙的装置 可以保持在不超过0.1亩。
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公开(公告)号：US5371730A
公开(公告)日：1994-12-06
申请号：US618980
申请日：1990-11-28
申请人： Yoshihito Maeda , Isao Ikuta , Masaichi Nagai , Yoshimi Katou , Hisashi Andoh , Nobuyoshi Tsuboi , Hiroyuki Minemura , Tatsuya Sugita , Yoshio Sato , Yutaka Sugita
发明人： Yoshihito Maeda , Isao Ikuta , Masaichi Nagai , Yoshimi Katou , Hisashi Andoh , Nobuyoshi Tsuboi , Hiroyuki Minemura , Tatsuya Sugita , Yoshio Sato , Yutaka Sugita
CPC分类号： G11B7/24 , G11B23/0313
摘要： The invention relates to an optical memory in which an optical recording medium is built in a case, and also to a memory apparatus. Recording, reproducing and erasing operations are performed by irradiating light via a transparent portion of the case onto the built-in optical recording medium. The optical recording medium built in the case has face vibrations with respect to the case, because it is moved within the case. The present invention is characterized by employing such a construction for optically mitigating irregular fluctuation in reflectivity caused by this face vibration. In the optical memory of the present invention, the reflectivity fluctuation caused by an interference effect made between reflection light from the case and air, and also reflection light from the optical recording medium and air due to the relative deviation in the face vibrations, may be reduced by antireflection films provided in the case and the optical recording medium. In a memory apparatus of the present invention, the abovedescribed memory is mounted, the fluctuation in the reflectivity is monitored and laser power is varied in order to further mitigate the reflection vibrations.
摘要翻译： 本发明涉及一种光学存储器，其中光学记录介质被构建在壳体中，并且还涉及一种存储装置。 通过将壳体的透明部分照射到内置光学记录介质上来进行记录，再现和擦除操作。 因为在壳体内移动，所以内置在该壳体内的光记录介质面对壳体的振动。 本发明的特征在于采用这种结构，用于光学地减轻由这种面部振动引起的反射率的不规则波动。 在本发明的光学存储器中，由于来自壳体的反射光和空气之间的干涉效应引起的反射率波动，以及由于面部振动的相对偏离而来自光学记录介质和空气的反射光，可以是 由设置在壳体中的防反射膜和光记录介质所减少。 在本发明的存储装置中，安装上述存储器，监测反射率的波动，改变激光功率，以进一步减轻反射振动。
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53.发明授权
公开(公告)号：US5245493A
公开(公告)日：1993-09-14
申请号：US495908
申请日：1990-03-20
申请人： Takashi Kawabe , Moriaki Fuyama , Shinji Narishige , Eizi Ashida , Makoto Morijiri , Masanori Tanabe , Hiroshi Fukui , Yutaka Sugita , Hiroshi Ikeda , Masaaki Hayashi , Kazuo Nakagoshi , Kanji Kawakami , Yokuo Saitoh , Shunichiro Kuwatsuka
发明人： Takashi Kawabe , Moriaki Fuyama , Shinji Narishige , Eizi Ashida , Makoto Morijiri , Masanori Tanabe , Hiroshi Fukui , Yutaka Sugita , Hiroshi Ikeda , Masaaki Hayashi , Kazuo Nakagoshi , Kanji Kawakami , Yokuo Saitoh , Shunichiro Kuwatsuka
CPC分类号： G11B5/3919 , G11B5/012 , G11B5/3116 , G11B5/313 , G11B5/3163 , G11B5/3903 , G11B5/3967
摘要： A magnetic head for reading from and/or writing to a magnetic information storage medium has a substrate on which a plurality of thin films are formed in sequence. The films provide a magnetic circuit having a magnetic gap, a bottom pole piece and a top pole piece overlying said bottom pole piece. The top pole piece is formed as a tip portion adjoining the magnetic gap and a rear portion which makes magnetic contact with the tip portion. The rear portion is formed in the sequence after the tip portion. To ensure accurate thickness and width of the tip portion, a non-magnetic protective film is formed on the tip portion after the tip portion is formed and before the rear portion is formed.
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公开(公告)号：US5051856A
公开(公告)日：1991-09-24
申请号：US420478
申请日：1989-10-12
申请人： Shinji Narishige , Katsuya Mitsuoka , Takao Imagawa , Kouichi Nishioka , Akira Kumagai , Masaaki Sano , Yutaka Sugita , Reiko Arai , Tetsuo Kobayashi , Toshihiro Yoshida , Yokuo Saitoh , Yoshikazu Tsuji , Masaaki Hayashi
发明人： Shinji Narishige , Katsuya Mitsuoka , Takao Imagawa , Kouichi Nishioka , Akira Kumagai , Masaaki Sano , Yutaka Sugita , Reiko Arai , Tetsuo Kobayashi , Toshihiro Yoshida , Yokuo Saitoh , Yoshikazu Tsuji , Masaaki Hayashi
摘要： A thin film magnetic head has magnetic films, at least one of which is composed of a material containing major components of nickel and iron and one or more element from nitrogen, oxygen and carbon and has two of face-centered cubic system and body-centered tetragonal system, whereby thin film magnetic heads having a high permeability and low coercive force can be provided.
摘要翻译： 薄膜磁头具有磁性膜，其中至少一个由含有镍和铁的主要成分的材料和来自氮，氧和碳的一种或多种元素组成，并且具有两个面心立方体系和以身体为中心 可以提供具有高磁导率和低矫顽力的薄膜磁头。
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公开(公告)号：US4622264A
公开(公告)日：1986-11-11
申请号：US543423
申请日：1983-10-19
申请人： Yuzuru Hosoe , Norio Ohta , Keikichi Andoo , Yutaka Sugita
发明人： Yuzuru Hosoe , Norio Ohta , Keikichi Andoo , Yutaka Sugita
CPC分类号： H01F10/24 , Y10S428/90 , Y10T428/26 , Y10T428/265
摘要： A garnet film for use in magnetic bubble devices that supports magnetic bubbles with a bubble diameter of 0.4 micron or less. The curie temperature can be made over 240.degree. C., and the garnet film used is suitable for ion implanted devices.
摘要翻译： 用于支持气泡直径为0.4微米或更小的气泡的磁性气泡装置的石榴石膜。 居里温度可以在240℃以上，所用的石榴石膜适用于离子注入装置。
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公开(公告)号：US4621344A
公开(公告)日：1986-11-04
申请号：US669427
申请日：1984-11-08
申请人： Toshihiro Sato , Ryo Suzuki , Tadashi Ikeda , Teruaki Takeuchi , Yutaka Sugita
发明人： Toshihiro Sato , Ryo Suzuki , Tadashi Ikeda , Teruaki Takeuchi , Yutaka Sugita
CPC分类号： G11C19/0816
摘要： A magnetic bubble device has minor loops formed through ion implantation and used for storing information. As the density becomes higher, inside turn corner portions are formed on the minor loops. Dummy patterns having circular, triangular or other shapes are disposed in the vicinity of the corner portion. It is desirable that the minimum distance X between the dummy pattern and the propagation track satisfy the relation of 1.5 D.ltoreq.X.ltoreq.3.5 D, where D represents the diameter of a bubble.
摘要翻译： 磁性气泡装置具有通过离子注入形成的较小的环，用于存储信息。 随着密度变高，在小环上形成内转角部。 具有圆形，三角形或其他形状的虚拟图案设置在角部附近。 期望虚拟图案和传播轨迹之间的最小距离X满足1.5D≤X≤3.5D的关系，其中D表示气泡的直径。
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57.发明授权
公开(公告)号：US4581579A
公开(公告)日：1986-04-08
申请号：US545643
申请日：1983-10-26
申请人： Kazuyuki Nagatsuma , Hiroyoshi Matsumura , Tsuneo Suganuma , Norio Ohta , Keikichi Ando , Yuzuru Hosoe , Yutaka Sugita
发明人： Kazuyuki Nagatsuma , Hiroyoshi Matsumura , Tsuneo Suganuma , Norio Ohta , Keikichi Ando , Yuzuru Hosoe , Yutaka Sugita
CPC分类号： G01R33/0322
摘要： In a magnetic-field measuring apparatus having a Faraday rotation property, a medium having the Faraday rotation property includes at least one magnetic garnet thin film having a composition represented by a general formula of R.sub.3 (Fe.sub.5-x M.sub.x)O.sub.12 (where R is at least one element selected from a group consisting of La, Sm, Lu, Ca and Bi, or at least two elements selected from the group with Y being added thereto, M is at least one element selected from a group consisting of Ga, Ge, Al, Si, Sc, In and Cr, and a range of x is 0.ltoreq.x.ltoreq.1.5), and magnetized in a direction of light transmission, whereby an overall temperature characteristic of a ratio (4.pi.Ms/Ho) of a saturation flux density 4.pi.Ms to a collapse field Ho of a strip domain of the thin film is improved. The magnetic-field measuring apparatus offers a stable measurement of magnetic-field irrespective of a temperature change.
摘要翻译： 在具有法拉第旋转特性的磁场测量装置中，具有法拉第旋转特性的介质包括至少一种具有由通式R3（Fe5-xMx）O12表示的组成的磁性石榴石薄膜（其中R至少为 选自La，Sm，Lu，Ca和Bi中的一种元素，或选自添加有Y的基团中的至少两种元素，M为选自Ga，Ge，Al中的至少一种元素 ，Si，Sc，In和Cr，x的范围为0
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公开(公告)号：US4525808A
公开(公告)日：1985-06-25
申请号：US592954
申请日：1984-03-23
CPC分类号： G11C19/0891
摘要： A hybrid magnetic bubble memory device includes a first magnetic bubble propagation tracks formed of a portion of the boundary between first and second regions of a magnetic medium film having uniaxial anisotropy and adapted to be applied with a magnetic field in a direction perpendicular to the magnetic medium film to generate magnetic bubbles therein, and a second magnetic bubble propagation tracks formed of a soft magnetic material film on the magnetic medium film and connected with the first magnetic bubble propagation tracks. The first region is implanted with ions under ion-implant conditions different from those for the second region, and thus the above boundary is produced. The boundary between the first region and the second region is bent at junctions for transferring a magnetic bubble from the second magnetic bubble propagation tracks to the first magnetic bubble propagation tracks, to divide the boundary into a boundary portion for propagating a magnetic bubble and another boundary portion having no connection with magnetic bubble propagation, and an angle between the boundary portions at the bend in the boundary is in a range from 45 to 180 degrees.
摘要翻译： 混合磁气泡存储装置包括由具有单轴各向异性的磁介质膜的第一和第二区域之间的边界的一部分形成的第一磁性气泡传播轨道，并且适于在垂直于磁介质的方向上施加磁场 膜以在其中产生磁性气泡，以及由磁性介质膜上的软磁性材料膜形成的第二磁性气泡传播轨道，并与第一磁性气泡传播轨道连接。 第一区域在与第二区域不同的离子注入条件下注入离子，因此产生上述边界。 第一区域和第二区域之间的边界在接合部处弯曲，以将磁性气泡从第二磁性气泡传播轨迹转移到第一磁性气泡传播轨迹，以将边界划分成用于传播磁性气泡和另一边界的边界部分 与气泡传播无关的部分，边界弯曲处的边界部分之间的角度为45〜180度。
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公开(公告)号：US4510231A
公开(公告)日：1985-04-09
申请号：US462229
申请日：1983-01-31
CPC分类号： H01F41/34
摘要： A conductor pattern and an ion implanting mask are simultaneously formed by photoetching a conductor film through a single photoresist pattern. An area on which a conductor pattern is to be formed is covered with a photoresist, and ions are implanted to a magnetic film using the conductor film portion not convered with the photoresist, to form a magnetic bubble propagation track. The ion implantation mask and the conductor pattern are formed simultaneously through one mask. Accordingly, reduction of accuracy due to an error in mask alignment is prevented and the manufacturing is facilitated.
摘要翻译： 通过单一光致抗蚀剂图案对导体膜进行光刻，同时形成导体图案和离子注入掩模。 要形成导体图案的区域被光致抗蚀剂覆盖，并且使用未被光致抗蚀剂覆盖的导体膜部分将离子注入到磁性膜中，以形成磁性气泡传播轨道。 离子注入掩模和导体图案通过一个掩模同时形成。 因此，防止由于掩模对准的误差而导致的精度降低，并且便于制造。
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公开(公告)号：US4507755A
公开(公告)日：1985-03-26
申请号：US550589
申请日：1983-11-10
CPC分类号： G11C19/0816
摘要： A magnetic bubble memory device comprises a magnetic bubble propagation track formed by ion implantation. A region enclosed by the propagation track and lightly or shallowly implanted with ions on a condition differing from that for forming the propagation track or not implanted with ions at all is provided with a island-like isolated region heavily or deeply implanted with ions on the same condition as that for forming the propagation track.
摘要翻译： 磁性气泡存储装置包括通过离子注入形成的磁气泡传播轨迹。 由传播轨迹包围的区域和在与形成传播轨道不同的条件下完全轻微或浅地注入离子的区域完全没有被注入离子的岛状隔离区域 作为形成传播轨道的条件。
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