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71. 发明授权

US06314075B2 Optical recording/reproducing apparatus 有权
公开(公告)号：US06314075B2
公开(公告)日：2001-11-06
申请号：US09793889
申请日：2001-02-28
申请人： Harukazu Miyamoto , Hiroyuki Minemura , Hisataka Sugiyama
发明人： Harukazu Miyamoto , Hiroyuki Minemura , Hisataka Sugiyama
IPC分类号： G11B700
CPC分类号： G11B11/10565 , G11B7/0053 , G11B7/00718 , G11B7/00745 , G11B7/0079 , G11B7/0901 , G11B7/0938 , G11B7/094 , G11B7/24079 , G11B7/24085 , G11B7/26 , G11B11/10576 , G11B11/10578 , G11B11/10584 , G11B27/19 , G11B27/24 , G11B27/3027 , G11B2220/216 , G11B2220/2525
摘要： An optical recording/reproducing apparatus for recording/reproducing information on a medium including a light source, an optical system for focusing and irradiating a light beam generated by the light source on the medium, a photodetector for detecting a reflected beam from the medium, and a circuit for reproducing information by using a signal from the photodetector. The medium includes a substrate with grooves and lands alternately formed on the substrate in a radial direction. The grooves and the lands both serve as recording tracks with the recording tracks being divided into recording units in the circumferential direction. Each recording unit has a prepit area in a non-groove portion of the substrate with a first prepit being represented as VFO information in the prepit area and a second prepit being represented as address information in the prepit area.

72. 发明授权

US06195316B1 Optical recording medium using land/groove recording 有权
标题翻译：光记录媒体采用陆/沟录音
公开(公告)号：US06195316B1
公开(公告)日：2001-02-27
申请号：US09394870
申请日：1999-09-13
申请人： Harukazu Miyamoto , Hiroyuki Minemura , Hisataka Sugiyama
发明人： Harukazu Miyamoto , Hiroyuki Minemura , Hisataka Sugiyama
IPC分类号： G11B700
CPC分类号： G11B11/10565 , G11B7/0053 , G11B7/00718 , G11B7/00745 , G11B7/0079 , G11B7/0901 , G11B7/0938 , G11B7/094 , G11B7/24079 , G11B7/24085 , G11B7/26 , G11B11/10576 , G11B11/10578 , G11B11/10584 , G11B27/19 , G11B27/24 , G11B27/3027 , G11B2220/216 , G11B2220/2525
摘要： An optical recording/reproducing method and apparatus for use with an optical recording medium to which grooves and lands are formed on a substrate. Information recording areas are formed in association with both a groove and a land and an address area is formed at the information recording area preceding the groove and the land. VFO and address information are represented by pits which are disposed on an extension of the boundary between said groove and said land. The pits represents the VFO and address information and are disposed to satisfy such requirements that the pits are disposed alternately on both sides of an extension of the center line of one groove, that the pits are disposed alternately on both sides of an extension of the center line of one land, that the pits do not exist on both sides of a position on an extension of the center line of the groove and that the pits do not exist on both sides of a position on an extension of the center line of the land. The method and apparatus include features of irradiating an optical spot onto the said optical recording medium, detecting a reflected beam from the optical recording medium, detecting a VFO signal from the reflected beam indicative of the VFO information, detecting an amplitude of the VFO signal, and controlling an irradiation position of the optical spot on the basis of the amplitude utilizing appropriate apparatus.
摘要翻译：一种光学记录/再现方法和装置，用于在基片上形成凹槽和平台的光学记录介质。信息记录区域与凹槽和平台相关联地形成，并且在凹槽和平台之前的信息记录区域处形成地址区域。 VFO和地址信息由设置在所述槽和所述焊盘之间的边界的延伸部上的凹坑表示。凹坑表示VFO和地址信息，并且被设置为满足这样的要求：凹坑交替地布置在一个凹槽的中心线的延伸部的两侧，凹坑交替地设置在中心的延伸部的两侧一条地面的线，该凹坑不存在于槽的中心线的延伸部上的位置的两侧，并且该凹坑不存在于该陆地中心线的延伸部上的位置的两侧。该方法和装置包括将光点照射到所述光记录介质上的特征，检测来自光记录介质的反射光束，从表示VFO信息的反射光束检测VFO信号，检测VFO信号的幅度，以及利用适当的装置根据振幅来控制光点的照射位置。

73. 发明授权

US5974023A Information recording medium, information recording method and information recording apparatus 有权
公开(公告)号：US5974023A
公开(公告)日：1999-10-26
申请号：US188370
申请日：1998-11-10
申请人： Yasushi Miyauchi , Motoyasu Terao , Akemi Hirotsune , Hiroyuki Minemura , Harukazu Miyamoto
发明人： Yasushi Miyauchi , Motoyasu Terao , Akemi Hirotsune , Hiroyuki Minemura , Harukazu Miyamoto
IPC分类号： G11B5/09 , G11B7/00 , G11B7/0045 , G11B7/006 , G11B7/007 , G11B7/013 , G11B7/125 , G11B7/24 , G11B20/12
CPC分类号： G11B7/126 , G11B20/1217 , G11B7/00454 , G11B7/006 , G11B7/00745 , G11B7/013 , G11B2020/10898 , G11B2020/1232 , G11B2020/1277 , G11B2020/1287 , G11B2020/1288 , G11B2020/1298 , G11B2220/216 , G11B2220/2537 , G11B7/24
摘要： A recording medium having a dummy signal area on at least one side of a recording area is used and information is recorded with a dummy signal added to at least one of the leading and trailing sides in the recorded information signal. The user data area remains unaffected by repeated overwriting so that recorded user data is reproduced correctly. In particular, the wave form distortion caused by fluidization of a recording film remains at the dummy signal area and does not affect the user data area, so that the reproduction of the target information (user data) is assured.

74. 发明授权

US5914198A Magneto-optical recording medium having dielectric layers with different indices of refraction 失效
$Magneto-optical recording medium having dielectric layers with different indices of refraction$
标题翻译：具有不同折射率的电介质层的磁光记录介质
公开(公告)号：US5914198A
公开(公告)日：1999-06-22
申请号：US831262
申请日：1997-04-07
申请人： Harukazu Miyamoto , Toshio Niihara , Norio Ohta , Fumiyoshi Kirino
发明人： Harukazu Miyamoto , Toshio Niihara , Norio Ohta , Fumiyoshi Kirino
IPC分类号： G11B11/105 , G11B5/66
CPC分类号： G11B11/10593 , G11B11/10584 , Y10S428/90
摘要： In a magneto-optical recording medium which comprises a transparent substrate, a first dielectric film, a magnetic film, a second dielectric film and a metal reflective film, formed successively one upon another, Kerr rotation angle can be increased without lowering the reflectivity by setting the thickness of the first dielectric film to 120-220% of a minimum film thickness among film thicknesses showing a minimum reflectivity and setting the thickness of the second dielectric film to 80-120% of a film thickness showing a maximum Kerr rotation angle and furthermore by making the refractive index of the first dielectric film lower than that of the second dielectric film.
摘要翻译：在包括透明基板的磁光记录介质中，可以相互依次形成的第一电介质膜，磁膜，第二电介质膜和金属反射膜，可以增加克尔旋转角度，而不会通过设定降低反射率第一电介质膜的厚度为薄膜厚度的最小膜厚的120-220％，表示最小的反射率，并将第二电介质膜的厚度设定为显示最大克尔旋转角度的膜厚度的80-120％通过使第一电介质膜的折射率低于第二电介质膜的折射率。

75. 发明授权

US5726955A Magneto optical recording medium apparatus and method utilizing light pulse magnetic modulation recording 失效
标题翻译：磁光记录介质装置和方法利用光脉冲磁调制记录
公开(公告)号：US5726955A
公开(公告)日：1998-03-10
申请号：US744760
申请日：1996-11-06
申请人： Seiji Yonezawa , Norio Ohta , Toshio Niihara , Keiji Kataoka , Masahiko Takahashi , Harukazu Miyamoto , Hirofumi Sukeda , Toshiaki Tsuyoshi
发明人： Seiji Yonezawa , Norio Ohta , Toshio Niihara , Keiji Kataoka , Masahiko Takahashi , Harukazu Miyamoto , Hirofumi Sukeda , Toshiaki Tsuyoshi
IPC分类号： G11B20/10 , G11B5/02 , G11B7/006 , G11B7/007 , G11B11/10 , G11B11/105 , G11B27/19 , G11B27/30 , G11B11/00
CPC分类号： G11B7/00745 , G11B11/10513 , G11B11/10521 , G11B11/10528 , G11B11/1053 , G11B11/10595 , G11B27/19 , G11B27/3027 , G11B7/006
摘要： A magneto-optical data recording system comprises magnetic field pulse applying means for applying to a magneto-optic recording medium a magnetic field pulse of a polarity corresponding to code data to be recorded, and means for heating the recording medium in a pulsating manner at a predetermined frequency synchronous with the code data to be recorded. During recording, the magnetic field pulse applying means applies a magnetic field pulse of a polarity corresponding to code data along a track of the recording medium and the heating means continuously heats the recording medium in a pulsating manner at a predetermined frequency synchronous with the code data to thereby directly overwrite the code data. The magnetic field pulse applying means includes a magnetic coil driven by code data from a source of code data (data generator). The heating means includes an optical head which comprises a source of laser beam driven by a laser driver and an optical system which focuses the laser beam from the source of laser beam as a small light spot onto the recording medium.
摘要翻译：一种磁光数据记录系统，包括磁场脉冲施加装置，用于向磁光记录介质施加与要记录的代码数据相对应的极性的磁场脉冲，以及用于以脉动方式加热记录介质的装置，与要记录的代码数据同步的预定频率。在记录期间，磁场脉冲施加装置沿着记录介质的轨道施加与代码数据对应的极性的磁场脉冲，并且加热装置以与代码数据同步的预定频率的脉动方式连续地加热记录介质从而直接覆盖代码数据。磁场脉冲施加装置包括由代码数据源（数据发生器）的代码数据驱动的磁线圈。加热装置包括光学头，其包括由激光驱动器驱动的激光束源和将来自激光源的激光束作为小光点聚焦到记录介质上的光学系统。

76. 发明授权

US5434844A Magneto-optical recording media and magneto-optical recording device using the same 失效
标题翻译：磁光记录介质和使用其的磁光记录装置
公开(公告)号：US5434844A
公开(公告)日：1995-07-18
申请号：US43455
申请日：1993-04-06
申请人： Harukazu Miyamoto , Toshio Niihara , Keikichi Andoo , Masahiro Ojima
发明人： Harukazu Miyamoto , Toshio Niihara , Keikichi Andoo , Masahiro Ojima
IPC分类号： G11B11/105 , G11C13/06
CPC分类号： G11B11/10515 , G11B11/10593 , G11B11/10595
摘要： This invention provides a magneto-optical recording medium comprising at least an information storage layer and a readout layer disposed on the substrate, the information storage layer being used to record information by changing the magnetized state by raising the temperature thereof by light irradiation, and the readout layer being capable of copying information recorded on the above-mentioned information storage layer, located closer to the substrate than the above-mentioned information storage layer, and having a coercive force of 3 kOe or less at room temperature. By using this recording medium, a Signal to Noise ratio can be obtained in reproduction without deterioration of the information recording characteristics.
摘要翻译：本发明提供一种磁光记录介质，至少包括信息存储层和设置在基板上的读出层，所述信息存储层用于通过通过光照射升高其温度来改变磁化状态来记录信息，并且读出层能够复制记录在上述信息存储层上的信息，位于比上述信息存储层更靠近基板的位置，并且在室温下具有3kOe以下的矫顽力。通过使用该记录介质，可以在再现时获得信噪比，而不会降低信息记录特性。

77. 发明授权

US5179546A Magneto-optical disk and process for manufacturing the same 失效
标题翻译：磁光盘及其制造方法
公开(公告)号：US5179546A
公开(公告)日：1993-01-12
申请号：US631984
申请日：1990-12-21
申请人： Yumiko Anzai , Yoshinori Miyamura , Toshio Niihara , Harukazu Miyamoto , Norio Ohta
发明人： Yumiko Anzai , Yoshinori Miyamura , Toshio Niihara , Harukazu Miyamoto , Norio Ohta
IPC分类号： G11B11/10 , G11B7/26 , G11B11/105
CPC分类号： G11B11/10584 , G11B11/10582 , G11B7/26
摘要： A magneto-optical disk which has a circular disk form and comprises a substrate provided with information pits and a guide groove, a recording medium layer provided on the substrate, and a protective layer formed of at least one thin film on the medium layer, in which the surface of the protective layer is minutely roughened to have a concave rough pattern and not to substantially protrude beyond a reference level composed of the outermost surface portions of the protective layer. When the magneto-optical disk is subjected to recording by a CSS system using an air floating magnetic head conforming to high-frequency recording in a magnetic field modulation type recording, which is one of methods of overwrite recording on magneto-optical disks, the minute concave rough pattern formed on the surface of the disk substrate prevents such troubles as adhesion of the magnetic head to the surface of the disk and collision between the disk substrate being rotated and the head.
摘要翻译：一种具有圆盘形状并包括设置有信息凹坑的衬底和引导槽的磁光盘，设置在衬底上的记录介质层和由介质层上的至少一层薄膜形成的保护层，其保护层的表面被微小地粗糙化以具有凹形粗糙图案，并且基本上不突出超过由保护层的最外表面部分组成的基准水平。当磁光盘通过使用在磁光调制型记录中的符合高频记录的空气浮动磁头的CSS系统进行记录时，其是在磁光盘上重写记录的方法之一，分钟形成在盘基板表面上的凹形粗糙图案防止了磁头粘附到盘表面和盘基片旋转与头部之间的碰撞等问题。

78. 发明授权

US08811140B2 Recordable optical disc, recording device, and recording method 有权
标题翻译：可记录光盘，记录装置和记录方法
公开(公告)号：US08811140B2
公开(公告)日：2014-08-19
申请号：US13060606
申请日：2010-07-01
申请人： Yoshihiro Akimoto , Shoei Kobayashi , Motoshi Ito , Yasumori Hino , Hiroyasu Inoue , Harukazu Miyamoto , Koichiro Nishimura , Sung-hee Hwang , In-oh Hwang
发明人： Yoshihiro Akimoto , Shoei Kobayashi , Motoshi Ito , Yasumori Hino , Hiroyasu Inoue , Harukazu Miyamoto , Koichiro Nishimura , Sung-hee Hwang , In-oh Hwang
IPC分类号： G11B7/24
CPC分类号： G11B7/00736 , G11B7/1267 , G11B7/24038
摘要： The present invention is to realize a proper inner zone layout in a quadruple-layer disk.A test area is provided in the inner zone (inner circumference side area) in each of recording layers. If two test areas closer to the outer circumference, of four test areas, are defined as a first pair and two test areas closer to the inner circumference are defined as a second pair, the test areas of the first pair and the test areas of the second pair are so disposed as to be prevented from overlapping with each other in the layer direction. Two test areas of the first pair have the same consumption direction of the test area, and are so disposed that the areas to be used next hardly overlap with each other in the layer direction. Two test areas of the second pair have the same consumption direction of the test area opposite to the consumption direction of the test area in the first pair, and are so disposed that the areas to be used next hardly overlap with each other in the layer direction.
摘要翻译：本发明是在四层盘中实现适当的内区布局。在每个记录层中的内部区域（内周侧区域）设置测试区域。如果两个测试区域接近四个测试区域的外圆周，则被定义为第一对，并且更靠近内圆周的两个测试区域被定义为第二对，第一对测试区域和测试区域的测试区域第二对设置成防止在层方向上彼此重叠。第一对的两个测试区域具有相同的测试区域的消耗方向，并且被设置为使得下一个区域在层方向上几乎不重叠。第二对的两个测试区域具有与第一对中的测试区域的消耗方向相反的测试区域的相同消耗方向，并且被设置为使得下一个使用的区域在层的方向上几乎不重叠。

79. 发明授权

US08810946B2 Energy-assisted magnetic recording head and magnetic recording device 有权
标题翻译：能量磁记录头和磁记录装置
公开(公告)号：US08810946B2
公开(公告)日：2014-08-19
申请号：US13641239
申请日：2011-03-28
申请人： Kan Yasui , Harukazu Miyamoto , Masukazu Igarashi
发明人： Kan Yasui , Harukazu Miyamoto , Masukazu Igarashi
IPC分类号： G11B5/127
CPC分类号： G11B5/3146 , G11B5/1278 , G11B5/3116 , G11B5/314 , G11B5/315 , G11B2005/0024
摘要： A microwave-assisted magnetic recording system configured to perform magnetic recording with high density, including a high-frequency magnetic field generation element whose width is narrower than a track width of a main pole. A magnetic field vector from the main pole is perpendicularly incident on a film surface of the high-frequency magnetic field generating unit, by a shield material arranged to have a high magnetic permeability so that the main pole magnetic field is corrected and induced, and a hard bias layer to which a desired static magnetic field is added. Areas having high magnetic field gradients overlap each other by performing an offset of the high-frequency magnetic field generating unit of the magnetic head from the central line of the main pole.
摘要翻译：一种被配置为执行高密度磁记录的微波辅助磁记录系统，包括宽度窄于主极的轨道宽度的高频磁场产生元件。来自主极的磁场矢量垂直入射在高频磁场产生单元的膜表面上，通过屏蔽材料被布置成具有高导磁率，使得主极磁场被校正和感应，并且添加了期望的静磁场的硬偏压层。通过从主极的中心线执行磁头的高频磁场产生单元的偏移，具有高磁场梯度的区域彼此重叠。

80. 发明授权

US08780678B2 Thermal-assisted-magnetic-recording head having core cover layer 有权
标题翻译：具有芯覆盖层的热辅助磁记录头
公开(公告)号：US08780678B2
公开(公告)日：2014-07-15
申请号：US13392115
申请日：2011-05-16
申请人： Yasuhiko Iwanabe , Takuya Matsumoto , Harukazu Miyamoto
发明人： Yasuhiko Iwanabe , Takuya Matsumoto , Harukazu Miyamoto
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： Provided is a thermal-assisted-magnetic-recording head capable of irradiating a magnetic recording medium with light with a spot size reduced on the submicron order with high utilization efficiency. A spot size converter 13 for guiding light emitted from an optical source 4 into a magnetic head is provided at a position adjacent to a magnetic main pole 19 in the magnetic head. In the spot size converter 13, a cover layer 15 having a lower refractive index than those of a core 14 and a clad material 24 is formed between the core 14 and the clad 15 and has a shape composed of a shape substantially rectangular in a light traveling direction and a taper shape having a width increasing toward the bottom surface of the magnetic head.
摘要翻译：提供一种热辅助磁记录头，其能够以高的利用效率以亚微米级的光斑尺寸减小的光照射磁记录介质。用于将从光源4发射的光引导到磁头中的光斑尺寸转换器13设置在与磁头中的磁性主极19相邻的位置处。在光斑尺寸转换器13中，在芯14和包层15之间形成折射率低于芯14和包层材料24的覆盖层15，并且具有由光形成基本矩形的形状行进方向和具有朝向磁头的底表面的宽度增加的锥形形状。

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