公开(公告)号：US06771589B2

公开(公告)日：2004-08-03

申请号：US09852327

申请日：2001-05-10

申请人： Kiichi Ueyanagi ,  Takashi Ozawa

发明人： Kiichi Ueyanagi ,  Takashi Ozawa

IPC分类号： G11B1103

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/40 ,  G11B5/4886 ,  G11B5/6005 ,  G11B7/122 ,  G11B7/123 ,  G11B7/127 ,  G11B7/1387 ,  G11B7/22 ,  G11B11/10554 ,  G11B11/1058 ,  G11B2005/0002 ,  G11B2005/0021 ,  G11B2005/3996 ,  H01S5/0202 ,  H01S5/02236 ,  H01S5/0282 ,  H01S5/0286 ,  H01S5/0287 ,  H01S5/0425 ,  H01S5/06243 ,  H01S5/2027 ,  H01S5/2206 ,  H01S5/32341

摘要： A small, high-precision, and cheap flying recording head having high mass-productivity, high recording density, and high transfer rate, a disk drive, and a method of manufacturing the flying recording head are disclosed. The flying recording head is manufactured by forming a semiconductor laser oscillation region by growing a semiconductor crystal on a rear end surface of a substrate made of a single crystal such as sapphire, and forming a air bearing surface in an output surface of the semiconductor laser and the substrate.

摘要翻译： 公开了具有高质量生产率，高记录密度和高传输速率的小型，高精度和便宜的飞行记录头，盘驱动器和制造飞行记录头的方法。 通过在由诸如蓝宝石的单晶制成的基板的后端表面上生长半导体晶体并且形成半导体激光振荡区域，并且在半导体激光器的输出表面中形成空气轴承表面来制造飞行记录头， 底物。

公开(公告)号：US20050041980A1

公开(公告)日：2005-02-24

申请号：US10784869

申请日：2004-02-24

申请人： Kiichi Ueyanagi ,  Yukio Adachi ,  Yasuji Seko ,  Hiroyuki Hotta ,  Takashi Ozawa

发明人： Kiichi Ueyanagi ,  Yukio Adachi ,  Yasuji Seko ,  Hiroyuki Hotta ,  Takashi Ozawa

IPC分类号： H04B10/10 ,  H04B10/00

CPC分类号： H04B10/1149

摘要： A master device and a slave device are each constituted of a transmitting section; a receiving section; and a control section including a three-dimensional position calculation section for calculating a three-dimensional position of the transmitting section of the counterpart master device or that of the counterpart slave device and an element drive section for driving an MEMS element. First, the master device outputs transmission light having comparatively narrow directivity, and the transmission light is two-dimensionally scanned. Next, the receiving section of the slave device receives that transmission light, calculates the transmission direction of the master device from the position of a spot of transmitted light on a light-detecting element array, and transmits the transmission light in that direction. At this point in time, scanning of the transmission light from the master device is stopped, and subsequently communication is initiated.

摘要翻译： 主设备和从设备各自由发送部分构成; 接收部分; 以及控制部分，包括用于计算对方主装置的发送部分或对方从装置的发送部分的三维位置的三维位置计算部分和用于驱动MEMS元件的元件驱动部分。 首先，主装置输出具有较窄方向性的传输光，并且透射光被二维扫描。 接下来，从设备的接收部分接收该传输光，从光检测元件阵列上的发射光点的位置计算主设备的传输方向，并沿该方向传输传输光。 在这个时间点上，停止从主设备的传输光的扫描，随后开始通信。

公开(公告)号：US07099096B2

公开(公告)日：2006-08-29

申请号：US10780570

申请日：2004-02-19

申请人： Kiichi Ueyanagi

发明人： Kiichi Ueyanagi

IPC分类号： G11B5/02

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/00 ,  G11B5/012 ,  G11B5/127 ,  G11B5/1278 ,  G11B5/3103 ,  G11B5/3903 ,  G11B5/3967 ,  G11B2005/0002 ,  G11B2005/0005 ,  G11B2005/0013 ,  G11B2005/0021 ,  G11B2005/3996

摘要： A heat-assisted magnetic recording head includes a thin film magnetic transducer having a pair of yokes and generating a magnetic field in a magnetic gap between two magnetic poles at the ends of the pair of yokes, and a heater placed in the vicinity of the magnetic gap and generating heat with an electric current. A part of a magnetic recording medium in the vicinity of the magnetic gap is heated by the heater to reduce a magnetic-coercive of the part of the magnetic recording medium and the magnetic field generated by the thin film magnetic transducer is applied to the part of the magnetic recording medium.

摘要翻译： 一种热辅助磁记录头包括具有一对轭铁的薄膜磁换能器，并且在一对轭铁的端部处的两个磁极之间的磁隙中产生磁场，并且放置在磁性附近的加热器 间隙并用电流产生热量。 在磁隙附近的磁记录介质的一部分被加热器加热，以减小磁记录介质的一部分的磁矫顽力，并且将由薄膜磁换能器产生的磁场施加到 磁记录介质。

公开(公告)号：US6154326A

公开(公告)日：2000-11-28

申请号：US271868

申请日：1999-03-18

申请人： Kiichi Ueyanagi ,  Kazuo Baba

发明人： Kiichi Ueyanagi ,  Kazuo Baba

IPC分类号： G11B5/00 ,  G11B5/012 ,  G11B5/127 ,  G11B7/12 ,  G11B7/135 ,  G11B7/14 ,  G11B7/22 ,  G11B11/105 ,  G02B7/02 ,  G11B7/00 ,  G11B21/10

CPC分类号： G11B5/00 ,  G11B5/012 ,  G11B5/127 ,  G11B7/122 ,  G11B7/123 ,  G11B7/1374 ,  G11B7/1387 ,  G11B7/22 ,  B82Y10/00 ,  G11B11/10543 ,  G11B11/10554 ,  G11B11/1058 ,  G11B2005/0002 ,  G11B2005/0005 ,  G11B2005/0021 ,  G11B2007/13725 ,  G11B2007/13727 ,  G11B7/14

摘要： An optical head which implements high recording density of a recording medium and which is miniaturized in size and improved in data transfer rate, a disk apparatus, and a method for manufacturing the optical head are provided. A laser beam is emitted from a semiconductor laser, the laser beam is collimated by the collimator lens to a collimated beam and reflected by a mirror, condensed by an condense lens, and incident to an incident surface of a transparent condensing medium. The condensed beam which was incident to the incident surface is refracted by the incident surface, the refracted beam is condensed on a condense surface, a beam spot is formed on the condense surface, and a near field wave leaks from a small aperture. The near field wave leaked from the small aperture propagates in a recording layer of a recording. The beam is served for recording/reproduction on the recording layer.

摘要翻译： 提供一种实现记录介质的高记录密度并且尺寸小型化并且提高数据传输速率的光学头，光盘装置和用于制造光学头的方法。 从半导体激光器发射激光束，激光束被准直透镜准直到准直光束并由反射镜反射，被聚焦透镜聚光，并入射到透明冷凝介质的入射表面。 入射到入射表面的聚光束被入射面折射，折射光束在冷凝表面上会聚，在凝聚面上形成束斑，近场波从小孔泄漏。 从小孔径泄漏的近场波在记录的记录层中传播。 该光束用于记录层上的记录/再现。

公开(公告)号：US5253265A

公开(公告)日：1993-10-12

申请号：US832053

申请日：1992-02-06

申请人： Yasuji Seko ,  Kiichi Ueyanagi ,  Hideo Nakayama ,  Hideki Fukunaga ,  Nobuaki Ueki

发明人： Yasuji Seko ,  Kiichi Ueyanagi ,  Hideo Nakayama ,  Hideki Fukunaga ,  Nobuaki Ueki

IPC分类号： H01S5/00 ,  H01S5/20 ,  H01S5/343 ,  H01S3/19

CPC分类号： H01S5/34313 ,  B82Y20/00 ,  H01S5/2059 ,  H01S5/3432

摘要： A semiconductor laser device having an active layer which is comprised of a quantum well layer formed of a mixed crystal material, and barrier layers provided on both sides of the quantum well layer in such a manner as to sandwich the same, is characterized in that Ge is thermally diffused in a portion of the active layer to disorder the quantum well layer and the barrier layers at that portion so as to form a non-light-emitting area with a low refractive index, while the quantum well layer and the barrier layers at a portion where Ge is not diffused is formed as a refractive index waveguide which is a light-emitting area.

摘要翻译： 具有由混合晶体材料形成的量子阱层的有源层和以夹着该量子阱层的方式设置在量子阱层的两侧的势垒层的半导体激光器件的特征在于Ge 在有源层的一部分中热扩散以使该部分处的量子阱层和阻挡层紊乱，以便形成具有低折射率的非发光区域，而量子阱层和阻挡层在 Ge不被扩散的部分形成为作为发光区域的折射率波导管。

公开(公告)号：US4672406A

公开(公告)日：1987-06-09

申请号：US684691

申请日：1984-12-21

申请人： Yasushi Sawada ,  Kiichi Ueyanagi ,  Yoshifumi Katayama ,  Yasuhiro Shiraki ,  Makoto Morioka ,  Takao Kuroda ,  Tomoyoshi Mishima

发明人： Yasushi Sawada ,  Kiichi Ueyanagi ,  Yoshifumi Katayama ,  Yasuhiro Shiraki ,  Makoto Morioka ,  Takao Kuroda ,  Tomoyoshi Mishima

IPC分类号： H01L29/812 ,  H01L21/338 ,  H01L21/8252 ,  H01L27/095 ,  H01L29/201 ,  H01L29/205 ,  H01L29/36 ,  H01L29/43 ,  H01L29/47 ,  H01L29/778 ,  H01L29/80

CPC分类号： H01L21/8252 ,  H01L27/095 ,  H01L29/432 ,  H01L29/475 ,  H01L29/7783

摘要： A semiconductor member has a structure wherein a first semiconductor layer is held between second and third semiconductor layers which have forbidden band widths greater than a forbidden band width of the first semiconductor layer, and wherein only the second semiconductor layer which is formed on a side of the first semiconductor layer close to a substrate is doped with impurities. The semiconductor member constructs the depletion type with the first and second semiconductor layers, and the enhancement type with the first and third semiconductor layers. A semiconductor device can be properly formed in the enhancement or depletion type by selectively connecting the semiconductor layers.

摘要翻译： 半导体部件具有这样的结构，其中第一半导体层被保持在禁止带宽大于第一半导体层的禁带宽度的第二和第三半导体层之间，并且其中只有形成在第一半导体层 靠近基板的第一半导体层掺杂有杂质。 半导体部件利用第一和第二半导体层构成耗尽型，并且利用第一和第三半导体层构成增强型。 可以通过选择性地连接半导体层，以增强或耗尽型形式适当地形成半导体器件。

公开(公告)号：US4392219A

公开(公告)日：1983-07-05

申请号：US252593

申请日：1981-04-09

申请人： Norio Yokozawa ,  Wasao Takasugi ,  Seiji Yonezawa ,  Kiichi Ueyanagi

发明人： Norio Yokozawa ,  Wasao Takasugi ,  Seiji Yonezawa ,  Kiichi Ueyanagi

IPC分类号： H04N5/85 ,  G11B7/09 ,  G11B21/10

CPC分类号： G11B7/0938 ,  G11B21/10

摘要： A method for recording and reproducing information characterized in that an information train in which synchronizing signals are arrayed at equal time intervals between information signals is recorded in an information track on a recording medium which is wobbled in synchronism with the synchronizing signals and at a frequency integral times the frequency of the synchronizing signals, that the information train recorded in the information track is read out by read-out means, and that a position of the read-out means is controlled on the basis of the information train read out. The wobbling waveform is 90.degree. out of phase with a harmonic component of the synchronizing signals.

摘要翻译： 一种用于记录和再现信息的方法，其特征在于，在信息信号之间以相等的时间间隔排列同步信号的信息列被记录在与同步信号同步地摆动的记录介质上的信息轨道中，并以频率积分 乘以同步信号的频率，通过读出装置读出记录在信息轨道中的信息列，并且基于读出的信息列来控制读出装置的位置。 摆动波形与同步信号的谐波分量相差90°。

公开(公告)号：US07894309B2

公开(公告)日：2011-02-22

申请号：US12318239

申请日：2008-12-23

申请人： Kiichi Ueyanagi

发明人： Kiichi Ueyanagi

IPC分类号： G11B11/00

CPC分类号： G11B11/1058 ,  G11B11/10534 ,  G11B11/10545 ,  G11B11/10554 ,  H01S5/005 ,  H01S5/0261 ,  H01S5/18338 ,  H01S5/18394 ,  H01S2301/176

摘要： The present invention provides a magnetooptic device, a magnetooptic head, and a magnetic disk drive each capable of performing optically assisted magnetic recording and each having a small size, improved recording density, and a higher transfer rate. In a magnetooptic device, a magnetic circuit including a magnetic gap and a thin film magnetic transducer having a coil portion are stacked on the surface of a semiconductor laser. By the arrangement, optically assisted magnetic recording can be performed, small size and light weight are achieved, and higher transfer rate can be implemented.

摘要翻译： 本发明提供了一种磁光装置，磁光头和磁盘驱动器，它们能够执行光学辅助磁记录，并且每个具有小尺寸，改进的记录密度和更高的传送速率。 在磁光装置中，包括磁隙的磁路和具有线圈部分的薄膜磁换能器堆叠在半导体激光器的表面上。 通过该配置，可以进行光辅助磁记录，实现体积小，重量轻，并且可以实现更高的传送速率。

公开(公告)号：US06943988B2

公开(公告)日：2005-09-13

申请号：US10345354

申请日：2003-01-16

申请人： Kiichi Ueyanagi

发明人： Kiichi Ueyanagi

IPC分类号： G11B5/31 ,  G11B5/147 ,  G11B5/60

CPC分类号： G11B5/147

摘要： A process for producing a magnetic head attaining high speed and high density recording, excellent in reproducibility and relatively inexpensive is provided as well as a magnetic head and a magnetic disk unit. A lower yoke film, an insulating film supporting a thin film coil and an upper yoke film connected at a back end thereof to a back end of the lower yoke film are consecutively piled on a back end surface of a flying slider, and a magnetic pole films and a deposited at a tip end of at least one of the lower yoke film and the upper yoke film, so as to form a magnetic gap. The gap of the surface of the magnetic pole facing a magnetic recording medium is determined by the working pattern of the thin film; therefore, a magnetic pole having a high aspect ratio can be easily produced.

摘要翻译： 提供一种获得高速和高密度记录的磁头的制造方法，再现性优异并且相对便宜的方法以及磁头和磁盘单元。 将下轭铁膜，支撑薄膜线圈的绝缘膜和在其后端连接到下轭铁膜的后端的上轭膜连续地堆叠在飞行滑块的后端表面上，并且磁极 膜，并沉积在下轭铁膜和上轭铁膜中的至少一个的末端，以形成磁隙。 面对磁记录介质的磁极表面的间隙由薄膜的工作图形决定; 因此，可以容易地制造具有高纵横比的磁极。

公开(公告)号：US06876604B2

公开(公告)日：2005-04-05

申请号：US09777674

申请日：2001-02-07

申请人： Kiichi Ueyanagi

发明人： Kiichi Ueyanagi

IPC分类号： G11B5/31 ,  G11B5/02 ,  G11B7/125 ,  G11B7/135 ,  G11B11/10 ,  G11B11/105 ,  H01S5/02 ,  H01S5/022 ,  H01S5/026 ,  H01S5/183 ,  G11B11/00

CPC分类号： G11B11/1058 ,  G11B11/10534 ,  G11B11/10545 ,  G11B11/10554 ,  H01S5/005 ,  H01S5/0261 ,  H01S5/18338 ,  H01S5/18394 ,  H01S2301/176

摘要： The present invention provides a magnetooptic device, a magnetooptic head, and a magnetic disk drive each capable of performing optically assisted magnetic recording and each having a small size, improved recording density, and a higher transfer rate. In a magnetooptic device, a magnetic circuit including a magnetic gap and a thin film magnetic transducer having a coil portion are stacked on the surface of a semiconductor laser. By the arrangement, optically assisted magnetic recording can be performed, small size and light weight are achieved, and higher transfer rate can be implemented.

摘要翻译： 本发明提供了一种磁光装置，磁光头和磁盘驱动器，它们能够执行光学辅助磁记录，并且每个具有小尺寸，改进的记录密度和更高的传送速率。 在磁光装置中，包括磁隙的磁路和具有线圈部分的薄膜磁换能器堆叠在半导体激光器的表面上。 通过该配置，可以进行光辅助磁记录，实现体积小，重量轻，并且可以实现更高的传送速率。