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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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2.发明授权Large capacity magnetic disc apparatus with a particular relationship between pole thickness, saturated flux density, and recording wavelength 失效大容量磁盘装置，其磁极厚度，饱和磁通密度和记录波长之间具有特定关系
公开(公告)号：US5671107A
公开(公告)日：1997-09-23
申请号：US399221
申请日：1995-03-06
申请人： Katsuya Mitsuoka , Hiroshi Fukui , Makoto Aihara , Masanori Tanabe , Moriaki Fuyama , Shinji Narishige , Yutaka Sugita , Yoshihiro Shiroishi , Hajime Aoi , Yokuo Saitoh , Kanji Kawakami , Yoshikazu Tsuji , Masaaki Hayashi , Kazuo Nakagoshi
发明人： Katsuya Mitsuoka , Hiroshi Fukui , Makoto Aihara , Masanori Tanabe , Moriaki Fuyama , Shinji Narishige , Yutaka Sugita , Yoshihiro Shiroishi , Hajime Aoi , Yokuo Saitoh , Kanji Kawakami , Yoshikazu Tsuji , Masaaki Hayashi , Kazuo Nakagoshi
摘要： A magnetic disc apparatus has a large recording density of 120 megabits per square inch or more, and defines a relationship among a pole thickness (Pt) of thin-film magnetic heads disposed in the magnetic disc apparatus, and a saturation flux density (Bs) of cores of the heads and a recording wavelength (.lambda.) for the thin film magnetic discs have a coercivity of 1800 Oe or more, wherein a levitation space between the head and the disc is 0.15 .mu.m or less.
摘要翻译： 磁盘装置具有120兆比特每平方英寸或更大的记录密度，并且限定了设置在磁盘装置中的薄膜磁头的极厚度（Pt）与饱和磁通密度（Bs）之间的关系， 的磁头的磁芯和用于薄膜磁盘的记录波长（λ）具有1800Oe或更高的矫顽力，其中磁头和磁盘之间的悬浮空间为0.15μm或更小。
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3.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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4.发明授权Magnetic disc apparatus with thin film head suitable for high-density recording 失效具有适用于高密度记录的薄膜头的磁盘装置
公开(公告)号：US5296979A
公开(公告)日：1994-03-22
申请号：US963039
申请日：1992-10-19
申请人： Takashi Kawabe , Moriaki Fuyama , Shinji Narishige , Masatoshi Tsuchiya , Eiji Ashida , Makoto Morijiri , Hideki Yamazaki , Yutaka Sugita , Hiroshi Fukui , Tadayuki Iwakura , Makoto Aihara , Makoto Saito , Shunichiro Kuwatsuka , Hiroshi Ikeda , Yokuo Saitoh
发明人： Takashi Kawabe , Moriaki Fuyama , Shinji Narishige , Masatoshi Tsuchiya , Eiji Ashida , Makoto Morijiri , Hideki Yamazaki , Yutaka Sugita , Hiroshi Fukui , Tadayuki Iwakura , Makoto Aihara , Makoto Saito , Shunichiro Kuwatsuka , Hiroshi Ikeda , Yokuo Saitoh
CPC分类号： G11B5/012 , G11B5/3116
摘要： A magnetic disc apparatus includes a magnetic disc for recording information; a thin film magnetic head including a magnetic pole structure having an upper magnetic pole tip and a lower magnetic pole tip arranged to provide a magnetic gap at respective end portions thereof for writing and reading information in and from the magnetic disc; a device for rotating the magnetic disc; and a device for positioning the thin film magnetic head; the upper and lower magnetic pole tips having different contours at the respective end portions as viewed from a side confronting the magnetic disc wherein the difference (.DELTA.CW in .mu.m) in the width, along the magnetic gap, of the upper magnetic pole tip and the width, along the magnetic gap, of the lower magnetic pole tip satisfies the relation0
摘要翻译： 磁盘装置包括用于记录信息的磁盘; 包括具有上磁极端头和下磁极端头的磁极结构的薄膜磁头，其布置成在其各个端部处提供磁隙以在磁盘中写入和读取信息; 用于旋转磁盘的装置; 以及用于定位薄膜磁头的装置; 所述上磁极尖端和下磁极尖在相应端部处具有不同的轮廓，从与磁盘相对的一侧观察，其中沿着上部的磁隙的宽度（（delta）CW）（（m））） 磁极尖端和下磁极尖端的磁隙的宽度满足磁道密度Tr为每英寸1800或更多磁道的磁盘的关系0 <（Delta）CW <= 5000 / Tr。
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公开(公告)号：US5109311A
公开(公告)日：1992-04-28
申请号：US700095
申请日：1991-05-06
申请人： Masanobu Hanazono , Shinji Narishige , Yutaka Sugita , Hiroshi Fukui , Hirotsugu Fukuoka , Hajime Aoi , Masayuki Katsumoto , Takuji Ogawa , Jun Naruse , Yokuo Saitoh
发明人： Masanobu Hanazono , Shinji Narishige , Yutaka Sugita , Hiroshi Fukui , Hirotsugu Fukuoka , Hajime Aoi , Masayuki Katsumoto , Takuji Ogawa , Jun Naruse , Yokuo Saitoh
CPC分类号： G11B5/09 , G11B5/012 , G11B5/3116 , G11B5/82
摘要： This invention provides a magnetic disk device having a total memory capacity of 30 giga bytes or more, or more desirably 30.about.40 giga bytes. The magnetic disk used in this magnetic disk device has a plane record density of 45.about.80 mega bits per square inch. The thin film magnetic head has a pole thickness (P.sub.T), a magnetic flux density (B.sub.s), a magnetic gap depth (G.sub.d) and a record wavelenth (.lambda.) which satisfy the formulaG.sub.d .ltoreq.0.13 P.sub.T B.sub.s (.lambda.+4.3)-2.1.The magnetic disk rotation means rotate the magnetic disk at a speed of 24 m per second or more.
摘要翻译： 本发明提供了一种总存储容量为30千兆字节或更多，或更优选为30个差异40千兆字节的磁盘装置。 在该磁盘装置中使用的磁盘的平面记录密度为每平方英寸80万比特的平均记录密度。 薄膜磁头具有满足公式Gd
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公开(公告)号：US5307214A
公开(公告)日：1994-04-26
申请号：US848137
申请日：1992-03-09
申请人： Kanji Kawakami , Yoshiakira Karakama , Masayuki Takagi , Takayoshi Ohtsu , Hisayasu Honma , Tetsuo Kobayashi , Yutaka Sugita , Katsuya Mitsuoka
发明人： Kanji Kawakami , Yoshiakira Karakama , Masayuki Takagi , Takayoshi Ohtsu , Hisayasu Honma , Tetsuo Kobayashi , Yutaka Sugita , Katsuya Mitsuoka
摘要： A magnetic recording apparatus for recording information on a magnetic recording medium. A circuit for generates a recording current pulse train and supplies the pulse train to a magnetic head. The last pulse of the recording current pulse train dampled waveform. A ripple current is superposed on the damped waveform.
摘要翻译： 一种用于在磁记录介质上记录信息的磁记录装置。 一种用于产生记录电流脉冲串并将脉冲串提供给磁头的电路。 记录电流脉冲序列的最后脉冲波形波形。 纹波电流叠加在阻尼波形上。
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公开(公告)号：US5316617A
公开(公告)日：1994-05-31
申请号：US57020
申请日：1993-05-05
申请人： Takashi Kawabe , Moriaki Fuyama , Shinji Narishige , Akira Onuma , Tetsuya Okai , Yutaka Sugita , Shin-ichi Hara
发明人： Takashi Kawabe , Moriaki Fuyama , Shinji Narishige , Akira Onuma , Tetsuya Okai , Yutaka Sugita , Shin-ichi Hara
IPC分类号： G11B5/31 , C04B41/53 , C04B41/91 , H01L21/302 , H01L21/3065 , B44C1/22 , C23F1/00
CPC分类号： C04B41/009 , C04B41/5338 , C04B41/91 , G11B5/3163 , C04B2111/00422 , Y10T29/49032
摘要： A thin film magnetic head comprising a substrate on which are successively formed a base layer, a lower magnetic film, a gap layer, an insulator layer, a conductor coil, an upper magnetic film, and a first mask, is manufactured by a method in which one or more of a gas which can be expressed by the general formula of CnHxFy (where n.gtoreq.1, x+y=2n+2, x>0, y>0, and x.gtoreq.y); and a gas which can be expressed by the general formula of CnHxFy (where n.gtoreq.1, x+y=2n+2, x.gtoreq.0, y.gtoreq.0, and x
摘要翻译： 通过以下方法制造薄膜磁头，该薄膜磁头依次形成基底层，下磁性膜，间隙层，绝缘体层，导体线圈，上磁性膜和第一掩模 其中一种或多种可由通式C n H x F y（其中n> / = 1，x + y = 2n + 2，x> 0，y> 0和x> / = y）表示的气体; 并且使用可以由CnHxFy（其中n> / = 1，x + y = 2n + 2，x> / = 0，y> / = 0和x
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8.发明授权Magnetic heads and magnetic recording reproducing devices using magnetic laminations 失效使用磁性叠片的磁头和磁记录再现装置
公开(公告)号：US5639547A
公开(公告)日：1997-06-17
申请号：US44486
申请日：1993-04-09
申请人： Katsuya Mitsuoka , Yutaka Sugita , Hideo Fujiwara
发明人： Katsuya Mitsuoka , Yutaka Sugita , Hideo Fujiwara
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/3903 , H01F10/324 , G11B19/04 , G11B2005/3996 , G11B5/3954 , H01F10/3286 , Y10S428/90 , Y10T428/1121 , Y10T428/26 , Y10T428/265
摘要： A magnetic lamination including at least a first magnetic film, a second magnetic film and, a third magnetic film, a first intervening intermediate film intervening between the first and second magnetic films, and a second intervening intermediate film intervening between the second and third magnetic films, wherein the respective magnetic films each comprise a magnetically soft film, the first and second intervening films differ in thickness, and one of the first and second intervening films can have a zero thickness and further, the intervening intermediate film can include a transition metal and a substance which is likely to form a heterogeneous mixture with the transition metal.
摘要翻译： 包括至少第一磁性膜，第二磁性膜和第三磁性膜，介于第一和第二磁性膜之间的第一中间介质膜和介于第二和第三磁性膜之间的第二介入中间膜的磁性层压 其中各个磁性膜各自包括磁性软膜，第一和第二介入膜的厚度不同，并且第一和第二介入膜中的一个可以具有零厚度，此外，介入中间膜可以包括过渡金属和 可能与过渡金属形成非均匀混合物的物质。
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公开(公告)号：US5317556A
公开(公告)日：1994-05-31
申请号：US622609
申请日：1990-12-05
申请人： Nobuyoshi Tsuboi , Yoshio Sato , Hiroyuki Minemura , Hisashi Andoh , Masaichi Nagai , Isao Ikuta , Yoshimi Katou , Yoshihito Maeda , Tatsuya Sugita , Yutaka Sugita
发明人： Nobuyoshi Tsuboi , Yoshio Sato , Hiroyuki Minemura , Hisashi Andoh , Masaichi Nagai , Isao Ikuta , Yoshimi Katou , Yoshihito Maeda , Tatsuya Sugita , Yutaka Sugita
IPC分类号： G11B7/00 , G11B7/0033 , G11B7/004 , G11B7/0055 , G11B7/08 , G11B7/12 , G11B7/135 , G11B7/24 , G11B23/03
CPC分类号： G11B23/0316 , G11B7/12 , G11B7/135 , G11B7/24 , G11B7/0033
摘要： There is provided a compact and thin optical disk unit as a memory unit suitable for a portable computer such as a book type computer and a portable recording/reproducing apparatus. In the optical disk unit, the diameter of an objective lens is limited and a beam shaping prism, a beam splitter, a mirror and a 1/4 wavelength plate are formed into a unitary structure to make easy the optical axis adjustment of an optical head and ensure highly accurate assembling.
摘要翻译： 提供了一种紧凑而细的光盘单元，作为适用于诸如书本型计算机和便携式记录/再现装置的便携式计算机的存储单元。 在光盘单元中，物镜的直径受到限制，光束整形棱镜，光束分离器，反射镜和1/4波片形成为一体的结构，使光头的光轴调整变得容易 并确保高精度的组装。
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公开(公告)号：US5274612A
公开(公告)日：1993-12-28
申请号：US742491
申请日：1991-08-05
申请人： Yoshio Sato , Nobuyoshi Tsuboi , Hiroyuki Minemura , Hisashi Andoh , Masaichi Nagai , Isao Ikuta , Yoshimi Kato , Yoshihito Maeda , Tatsuya Sugita , Yutaka Sugita
发明人： Yoshio Sato , Nobuyoshi Tsuboi , Hiroyuki Minemura , Hisashi Andoh , Masaichi Nagai , Isao Ikuta , Yoshimi Kato , Yoshihito Maeda , Tatsuya Sugita , Yutaka Sugita
IPC分类号： G11B7/0033 , G11B7/0037 , G11B7/0045 , G11B7/0055 , G11B7/24 , G11B11/105 , G11B19/00 , G11B23/03 , G11B13/04
CPC分类号： G11B7/24 , G11B11/10506 , G11B11/10517 , G11B11/10521 , G11B11/10523 , G11B11/10552 , G11B11/10584 , G11B11/10595 , G11B19/00 , G11B23/0316 , G11B23/0321 , G11B7/0033 , G11B7/0037 , G11B7/00454 , G11B7/00557
摘要： The information processor uses a portable memory which is able to be overwritten by laser power modulation system. The memory includes a disk type recording medium incorporated rotatably in a thin case, and carries out write/read/erase by means of a first magnetic field application device, a second magnetic field application device, and an optical head radiating light through this case.
摘要翻译： 信息处理器使用能够被激光功率调制系统覆盖的便携式存储器。 存储器包括可旋转地装在薄壳中的盘式记录介质，并通过第一磁场施加装置，第二磁场施加装置和通过这种情况照射光的光头进行写入/读取/擦除。
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