专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 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。

92. 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。

93. 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。

94. 发明申请

US20110317532A1 Power Adjustment Method, Information Write Method And Information Write Medium 有权
标题翻译：功率调整方法，信息写入方式和信息写入介质
公开(公告)号：US20110317532A1
公开(公告)日：2011-12-29
申请号：US13227030
申请日：2011-09-07
申请人： Soichiro ETO , Koichi Watanabe , Harukazu Miyamoto
发明人： Soichiro ETO , Koichi Watanabe , Harukazu Miyamoto
IPC分类号： G11B7/12
CPC分类号： G11B7/1267
摘要： An evaluation method and print wire method which includes (a) fitting a modulation characteristic formula M,m=Msat (1−(Pws−Pasy)/(Pw,m−Pasy)) having a saturated modulation Msat, write start power Pws, and asymptotic power Pasy as parameters to a relation between a plurality of kinds of write power Pw,m and a modulation M,m which is obtained from a signal amplitude of a trial-written signal, and finding an index value of an error; and (b) evaluating whether or not the relation between the write power and the modulation is valid for write power adjustment by using the index value of the error and a predetermined value the print write method further including (c) setting the write power based upon the result of evaluating and executing a write power process with the set write power.
摘要翻译：一种评估方法和打印线方法，其包括：（a）拟合具有饱和调制Msat的调制特性公式M，m = Msat（1-（Pws-Pasy）/（Pw，m-Pasy））写入开始功率Pws，以及渐近功率Pasy作为从写入信号的信号幅度获得的多种写入功率Pw，m与调制M，m之间的关系的参数，并找到误差的指标值; 以及（b）通过使用误差的指标值和预定值来评估写入功率和调制之间的关系对于写入功率调整是否有效，所述打印写入方法还包括（c）基于评估和执行具有设定写入功率的写入功率处理的结果。

95. 发明授权

US08050158B2 Power adjustment method, information write method and information write medium 有权
标题翻译：功率调整方法，信息写入方式和信息写入介质
公开(公告)号：US08050158B2
公开(公告)日：2011-11-01
申请号：US12569059
申请日：2009-09-29
申请人： Soichiro Eto , Koichi Watanabe , Harukazu Miyamoto
发明人： Soichiro Eto , Koichi Watanabe , Harukazu Miyamoto
IPC分类号： G11B7/00
CPC分类号： G11B7/1267
摘要： A write power adjustment method makes it possible to set optimum write power with high precision. Trial writing is conducted by using write power Pw,m (where m is an integer) of a plurality of kinds, and a modulation M,m associated with each write power is calculated. Optimum asymptotic power Pasy-opt is calculated by performing predetermined computation by using reference asymptotic power Pasy-ref and reference write start power Pws-ref which are previously determined for each medium. An evaluated value S,m=M,m×(Pw,m−Pasy-opt) is calculated by using the optimum asymptotic power Pasy-opt. Write power Pw that makes the evaluated value S equal to zero when applying straight line approximation to a relation between the write power Pw,m and the evaluated value S,m is calculated as optimum write start power Pws-opt. And optimum write power Pw-opt is found by performing predetermined computation on the optimum write start power Pws-opt.
摘要翻译：写入功率调整方法能够以高精度设置最佳写入功率。通过使用多种写入功率Pw，m（其中m是整数）进行试写，并且计算与每个写入功率相关联的调制M，m。通过使用预先为每种介质确定的参考渐近功率Pasy-ref和参考写入启动功率Pws-ref执行预定的计算来计算最佳渐近功率Pasy-opt。通过使用最佳渐近幂Pasy-opt计算评价值S，m = M，m×（Pw，m-Pasy-opt）。写入功率Pw，当将写入功率Pw，m与评估值S之间的关系应用直线近似时，使评估值S等于零，将m计算为最佳写入开始功率Pws-opt。通过对最佳写入开始功率Pws-opt执行预定的计算，找到最佳写入功率Pw-opt。

96. 发明申请

US20110216436A1 INFORMATION RECORDING DEVICE 有权
标题翻译：信息记录装置
公开(公告)号：US20110216436A1
公开(公告)日：2011-09-08
申请号：US13128010
申请日：2009-11-10
申请人： Masukazu Igarashi , Harukazu Miyamoto
发明人： Masukazu Igarashi , Harukazu Miyamoto
IPC分类号： G11B15/12 , G11B5/127
CPC分类号： H01L43/08 , G11B5/314 , G11B2005/001 , G11B2005/0024 , H01L27/22
摘要： Excellent magnetization switching of a magnetic recording medium is promoted in microwave assisted magnetic recording to provide a highly-reliable high-density information recording device. A receded section from an air bearing surface is arranged at an end section in a write track width direction on an FGL laminate film for generating a high-frequency field. Alternatively, a cross section of the FGL laminate film (plane perpendicular to the direction of the flow of the electric current) has an inverted trapezoid shape or has a structure in which the area of the cross section increases with distance from the main pole. Since an excellent recording pattern is formed on the recording medium, areal recording density in the information recording device can be increased, and the reliability can be improved at the same time. As a result, the cost can be reduced.
摘要翻译：在微波辅助磁记录中促进了磁记录介质的优异磁化切换，以提供高度可靠的高密度信息记录装置。在用于产生高频场的FGL层压膜上，在空气轴承表面的后端部沿写入磁道宽度方向布置。或者，FGL层叠膜的横截面（与电流的流动方向垂直的面）具有倒梯形形状，或者具有横截面积随着与主极的距离而增大的结构。由于在记录介质上形成优良的记录图形，所以可以增加信息记录装置中的面密度，同时可以提高可靠性。因此，可以降低成本。

97. 发明申请

US20110080815A1 OPTICAL RECORDING AND REGENERATING APPARATUS 有权
标题翻译：光学记录和再生设备
公开(公告)号：US20110080815A1
公开(公告)日：2011-04-07
申请号：US12893069
申请日：2010-09-29
申请人： Hideharu MIKAMI , Koichi Watanabe , Harukazu Miyamoto
发明人： Hideharu MIKAMI , Koichi Watanabe , Harukazu Miyamoto
IPC分类号： G11B20/00
CPC分类号： G11B7/0065 , G11B7/00781 , G11B7/128 , G11B7/24088
摘要： The present invention achieves an optical recording and regenerating apparatus focusing two opposed beams of light at a same place in an optical recording medium to record a standing wave generated by interference of the two beams of light. In the apparatus, phase information is recorded in the optical recording medium by a phase modulating means for modulating phase of one of the two beams of light. The generation reference light generated from a light source is allowed to interfere with regenerated light generated by projecting one of the two beams of light onto the optical recording medium to generate three or more beams of interfering light having different interference phases are simultaneously generated. The three or more beams of interfering light are then detected, and the phase modulated by the phase modulating means is demodulated from an output of the detector.
摘要翻译：本发明实现了在光记录介质中的相同位置聚焦两个相对的光束的光学记录和再生装置，以记录由两束光的干涉产生的驻波。在该装置中，通过用于调制两束光之一的相位的相位调制装置将相位信息记录在光学记录介质中。从光源产生的生成参考光被允许同时产生通过将两个光束中的一个投影到光学记录介质上而产生三个或更多个具有不同干涉相位的干涉光束的再生光。然后检测三个或更多个干涉光束，并且由相位调制装置调制的相位从检测器的输出解调。

98. 发明申请

US20100271921A1 OPTICAL INFORMATION RECORDING MEDIUM, OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE AND OPTICAL INFORMATION RECORDING/REPRODUCING METHOD 有权
标题翻译：光信息记录介质，光信息记录/再现设备和光信息记录/再现方法
公开(公告)号：US20100271921A1
公开(公告)日：2010-10-28
申请号：US12680612
申请日：2008-08-06
申请人： Kenichi Shimada , Tatsuro Ide , Takeshi Shimano , Harukazu Miyamoto
发明人： Kenichi Shimada , Tatsuro Ide , Takeshi Shimano , Harukazu Miyamoto
IPC分类号： G11B7/00
CPC分类号： G03H1/02 , G03H1/0256 , G03H1/22 , G03H2222/56 , G03H2223/19 , G03H2223/24 , G03H2250/33 , G03H2250/42 , G11B7/0065 , G11B7/24044
摘要： A holographic recording medium in which information can be reproduced by phase conjugate beam without requiring a mirror for obtaining the phase conjugate beam and its driving part and recording density is not reduced. The recording medium includes a recording layer in which an interference pattern is recorded and a light absorption/transmission layer which can be reversibly changed to be in a first state where signal beam and reference beam passed through the recording layer are absorbed at the time of recording of information and a second state where the reference beam is transmitted at the time of reproduction of information, and the reference beam transmitted through the light absorption/transmission layer is reflected by a reflection layer to produce the phase conjugate beam.
摘要翻译：可以通过相位共轭光再现信息的全息记录介质，而不需要用于获得相位共轭光束的反射镜及其驱动部分和记录密度。记录介质包括其中记录有干涉图案的记录层和可以可逆地改变为在记录时吸收信号束和参考光束通过记录层的第一状态的光吸收/透射层的信息和在再现信息时发送参考光束的第二状态，并且通过光吸收/透射层透射的参考光束被反射层反射以产生相位共轭光束。

99. 发明申请

US20100188961A1 Optical Disc Apparatus 有权
标题翻译：光盘装置
公开(公告)号：US20100188961A1
公开(公告)日：2010-07-29
申请号：US12754211
申请日：2010-04-05
申请人： Takeshi Shimano , Harukazu Miyamoto
发明人： Takeshi Shimano , Harukazu Miyamoto
IPC分类号： G11B7/135
CPC分类号： G11B7/1362 , G11B7/1356 , G11B7/1365
摘要： An optical disc apparatus includes a laser diode, a first optical component which branches beams from the laser diode into a first beam and a second beam, an objective lens which focuses the first beam on an optical information recording medium, an actuator which drives the objective lens in an optical axis direction, a reference mirror provided in an optical path of the second beam, an optical path length varying unit which varies an optical path length of the second beam, a first photo detector, a second photo detector, a second optical component which branches beams obtained by combining the first beam which is reflected by the optical information recording medium and the second beam which is reflected by the reference mirror and which makes the branched beams incident on the first and second photo detectors, and a signal processing part.
摘要翻译：一种光盘装置，包括激光二极管，将激光二极管分束成第一光束的第一光学部件和第二光束，将第一光束聚焦在光学信息记录介质上的物镜，驱动该物镜的致动器透镜在光轴方向上，设置在第二光束的光路中的参考镜，改变第二光束的光路长度的光程长度变化部，第一光检测器，第二光检测器，第二光检测器通过组合由光信息记录介质反射的第一光束和被参考反射镜反射并使分支光束入射在第一和第二光电检测器上的第二光束而获得的光束的分量，以及信号处理部分。

100. 发明授权

US07750276B2 Optical information detecting method, optical head, and optical disc apparatus utilizing plural photodetectors 有权
标题翻译：光信息检测方法，光头，利用多个光检测器的光盘装置
公开(公告)号：US07750276B2
公开(公告)日：2010-07-06
申请号：US11852361
申请日：2007-09-10
申请人： Harukazu Miyamoto , Hideharu Mikami , Takeshi Shimano
发明人： Harukazu Miyamoto , Hideharu Mikami , Takeshi Shimano
IPC分类号： G02B27/40
CPC分类号： G11B7/1356 , G11B7/005 , G11B7/13 , G11B2007/0013
摘要： In multilayer optical discs and high-speed optical discs, the amount of reproduction light per unit time greatly decreases and the reproduction signal quality (S/N) significantly drops due to the low effective reflectivity and the short read time of the medium. These problems are solved by causing reflected signal light from the optical disc and reference light, which is separated from the same light source and introduced into a detector without being shone onto the optical disc, to interference with each other on the detector. Detector outputs having four different interference states are simultaneously obtained, the interference states being displaced at intervals of 90° in terms of the phase relationship between the reference light and the signal. Based on a operation of the four detector outputs, a reproduction signal can be obtained that is stable at all times and amplified with high quality, even when there is an optical path length variation due to disc undulations.
摘要翻译：在多层光盘和高速光盘中，由于介质的有效反射率低和读取时间短，每单位时间的再现光量大大降低，再现信号质量（S / N）显着下降。这些问题通过使来自光盘的反射信号光和从相同光源分离并被引入检测器而不被照射到光盘上的参考光在检测器上彼此干涉来解决。同时获得具有四种不同干扰状态的检测器输出，以参考光和信号之间的相位关系为90°的间隔移位干涉状态。基于四个检测器输出的操作，即使当由于盘起伏而导致光程长度变化时，也可以始终获得稳定的高质量放大的再现信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式