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1. 发明专利

JP2010092946A Short pulse light source device, laser drive method, optical pickup, and optical disk device 有权
标题翻译：短脉冲光源装置，激光驱动方法，光学拾取和光盘装置
公开(公告)号：JP2010092946A
公开(公告)日：2010-04-22
申请号：JP2008259109
申请日：2008-10-03
申请人： Sony Corp , ソニー株式会社
发明人： FUJIIE KAZUHIKO
IPC分类号： H01S5/042 , G11B7/004 , G11B7/125
CPC分类号： H01S5/06216 , B82Y10/00 , G11B7/126 , H01S5/0014 , H01S5/0428
摘要： PROBLEM TO BE SOLVED: To emit high-output short-pulse light, and to reduce power consumption. SOLUTION: A laser control part 2 of the short pulse light source device 1 can supply required power at the timing of the rise of a generation pulse PL by having the gate pulse PG of a gate signal SG supplied to a power supply circuit 5 rise only during the period of a very short pulse width Tg so that the rising period of the generation pulse PL of a pulse signal SL supplied to a drive circuit 6 is included, and the power consumption Pa can be made substantially lower than the standard power consumption Pb. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：发射高输出短脉冲光，并降低功耗。解决方案：短脉冲光源装置1的激光控制部分2可以通过将栅极信号SG的栅极脉冲PG提供给电源电路来在发生脉冲PL的上升时刻提供所需的电力 5仅在脉冲宽度Tg非常短的时段内上升，从而包括提供给驱动电路6的脉冲信号SL的发生脉冲PL的上升周期，并且能够使功耗Pa大大低于标准功耗Pb 版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2004348838A Annealing device and annealing method 审中-公开
公开(公告)号：JP2004348838A
公开(公告)日：2004-12-09
申请号：JP2003143872
申请日：2003-05-21
申请人： Sony Corp , ソニー株式会社
发明人： FUJITA GORO , MIKI TAKESHI , TANAKA YASUTO , SAKAMOTO TETSUHIRO , FUJIIE KAZUHIKO
IPC分类号： G11B11/105 , G11B7/09 , G11B11/00
CPC分类号： G11B11/10582 , G11B11/10523 , G11B11/10576 , G11B11/10595
摘要： PROBLEM TO BE SOLVED: To perform an accurate and high speed annealing processing for a magneto-optical recording medium.
SOLUTION: An annealing device is provided with a first light beam being diffraction luminous flux of 0 order of the light beam emitted from a light source, a diffraction optical part 3 for performing spectral diffraction for a second light beam and a third light beam being the first order diffraction luminous flux, an emitting part 5 for converging the first light beam and emitting it to a guide groove or a magnetic layer of a land part forming both sides of the guide groove, converging a second light beam and a third light beam and emitting it to the magnetic layer of the vicinity of a boundary of the guide groove and the land part and a control part 6 for controlling the emitting part 5 so that the first light beam follows the guide groove or the land part based on a linear property of a first tracking error signal generated based on strength distribution of light quantity of return light of the first light beam.
COPYRIGHT: (C)2005,JPO&NCIPI

3. 发明专利

JP2004247016A Manufacturing method of magneto-optical recording medium 审中-公开
公开(公告)号：JP2004247016A
公开(公告)日：2004-09-02
申请号：JP2003038699
申请日：2003-02-17
申请人： Sony Corp , ソニー株式会社
发明人： MIKI TAKESHI , FUJIIE KAZUHIKO , TANAKA YASUTO , FUJITA GORO , SAKAMOTO TETSUHIRO
IPC分类号： G11B11/105 , G11B5/66
CPC分类号： G11B11/10582 , G11B11/10517 , G11B11/10584
摘要： PROBLEM TO BE SOLVED: To provide a magneto-optical recording medium having a satisfactory recording and reproducing characteristics by providing a manufacturing method of a magneto-optical recording medium which more reliably performs the magnetic separation of a groove sidewall part in the magneto-optical recording medium which performs the readout of recorded information by domain wall displacement of a reproduction layer.
SOLUTION: In the manufacturing method of the magneto-optical recording medium, at least the reproduction layer and a recording layer each of which consists of a magnetic layer are deposited on a substrate 1 having a groove 12 and reproduction of the recorded information is performed by the domain wall displacement. The method comprizes a first annealing process for irradiating only the sidewall parts 13 between contiguous land 11 and groove 12 with a laser beam L1 after at least the reproduction layer and the recording layer are deposited on the substrate 1 on which the sidewall 13 and the groove 12 are formed and a second magnetization annealing process for irradiating a region including contiguous side wall parts 13 and the land 11 which is held by these sidewall parts 13 with a laser beam L2 having a spot diameter which is larger than that of the laser beam in the first annealing process while applying an external magnetic field Hex.
COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP2004234763A Magneto-optical recording medium and signal reproducing method 有权
公开(公告)号：JP2004234763A
公开(公告)日：2004-08-19
申请号：JP2003022643
申请日：2003-01-30
申请人： Sony Corp , ソニー株式会社
发明人： SAKAMOTO TETSUHIRO , MIYATA KAZUTOMO , OTA TERUYUKI , WATANABE MAKOTO , TANAKA YASUTO , FUJITA GORO , MIKI TAKESHI , FUJIIE KAZUHIKO
IPC分类号： G11B11/105 , G11B11/00
CPC分类号： G11B11/10584 , G11B11/10515 , G11B11/10593
摘要： PROBLEM TO BE SOLVED: To facilitate a design of a magnetic layer by avoiding occurrence of ghost signals and improving drop-out at the time of reproduction of a magneto-optical recording medium by a domain wall displacement detection system.
SOLUTION: This medium is provided, from the incident side of a reproducing laser beam, with a first magnetic layer 11 constituting a reproduction layer, a second magnetic layer 12 constituting a control layer, a third magnetic layer 13 constituting an interruption layer and a fourth magnetic layer 14 constituting a recording layer, and relations of Tc1>Tc3>Tc2, Tc4>Tc3 are satisfied among respective Curie temperatures of the layers and at the same time, a relation of Ku3>Ku2 is satisfied between magnetic anisotropy of layers 13 and 12. Moreover, magnetic domain walls of the first magnetic layer 11 are displaced toward the peak part of the temperature-rise part of a light spot with irradiation of a reproducing laser beam and a recording magnetic domain is expanded and also the displacing of the magnetic domain walls is suppressed at the backward of a scanning direction. The second and third magnetic layers control the magnetic exchange coupling of the first magnetic layer and the fourth magnetic layer.
COPYRIGHT: (C)2004,JPO&NCIPI

5. 发明专利

JP2013020660A Optical disk device and position control method 审中-公开
标题翻译：光盘设备和位置控制方法
公开(公告)号：JP2013020660A
公开(公告)日：2013-01-31
申请号：JP2011150590
申请日：2011-07-07
申请人： Sony Corp , ソニー株式会社
发明人： KOBAYASHI SEIJI , FUJIIE KAZUHIKO
IPC分类号： G11B7/09 , G11B7/004 , G11B7/135 , G11B17/028
摘要： PROBLEM TO BE SOLVED: To reduce a manufacturing cost of a flexible disk.SOLUTION: In the optical disk device and the position control method, a positional guide piece is formed on a turntable which rotationally drives together with a flexible disk, and the position of first light to be emitted to the flexible disk is controlled on the basis of returned light of second light that has been emitted to the turntable having the positional guide piece formed thereon. Thereby, the position of the first light is controlled, in other words, a position of light to be emitted to the flexible disk can be controlled, without forming the positional guide piece on the flexible disk side. A step of forming the positional guide piece on the flexible disk can be omitted, and thereby a manufacturing cost of the flexible disk can be reduced.
摘要翻译：要解决的问题：降低软盘的制造成本。解决方案：在光盘装置和位置控制方法中，将位置引导件形成在与软盘一起旋转驱动的转盘上，并且将要发射到软盘的第一光的位置控制在已经发射到具有形成在其上的位置引导件的转盘的第二光的返回光的基础。由此，可以控制第一光的位置，换句话说，可以控制向柔性盘发射的光的位置，而不在软盘侧上形成位置引导件。可以省略在软盘上形成位置引导件的步骤，从而可以减少软盘的制造成本。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2012048774A Objective lens, lens manufacturing method, and optical drive device 审中-公开
标题翻译：目标镜头，镜头制造方法和光学驱动装置
公开(公告)号：JP2012048774A
公开(公告)日：2012-03-08
申请号：JP2010187992
申请日：2010-08-25
申请人： Sony Corp , ソニー株式会社
发明人： FUJIIE KAZUHIKO , SEKIGUCHI KOJI
IPC分类号： G11B7/135 , G02B3/00 , G02B13/00 , G11B7/004
CPC分类号： G11B7/1374 , G02B3/00 , G11B7/1387 , G11B2007/13727
摘要： PROBLEM TO BE SOLVED: To achieve high recording density by improving a numerical aperture NA that is more effective than that of an objective lens using an SIL (Solid Immersion Lens).SOLUTION: A hyper lens includes a super-semispherical or semispherical SIL as an objective lens and is formed integrally with a portion of an area facing an objective side of the SIL, which is obtained by performing the alternate lamination of a first thin film whose dielectric constant is positive and a second thin film whose dielectric constant is negative along the shape of a spherical surface by a radius Ri centered on a predetermined reference point set outside the objective side of the SIL up to the range of a spherical surface by a radius Ro(Ro>Ri) centered on the reference point Pr. According to the hyper lens, light of NA>1(NA: numerical aperture) obtained by the SIL can be propagated, and a minimum spot by the light of NA>1 generated by the SIL also can be reduced to as much as the amount corresponding to a ratio between the radius Ri and the radius Ro.
摘要翻译：要解决的问题：通过改善比使用SIL（固体浸没透镜）的物镜的数值孔径NA更有效的数值孔径NA来实现高记录密度。解决方案：超透镜包括超半球形或半球形SIL作为物镜，并且与面向SIL的物镜侧的区域的一部分一体形成，其通过执行第一薄片的交替层压而获得介电常数为正的膜，其介电常数为球形表面的介电常数为负的第二薄膜，以半径R 1为中心在设定在SIL的物镜侧外部的预定参考点上直到球面的范围，以参考点Pr为中心的半径Ro（Ro> Ri）根据超透镜，可以传播由SIL获得的NA> 1（NA：数值孔径）的光，并且由SIL产生的NA> 1的光的最小光点也可以减少到量对应于半径R 1和半径Ro之间的比率。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2011123933A Disk chucking mechanism and disk drive device 审中-公开
标题翻译：碟盘机构和磁盘驱动器件
公开(公告)号：JP2011123933A
公开(公告)日：2011-06-23
申请号：JP2009279428
申请日：2009-12-09
申请人： Sony Corp , ソニー株式会社
发明人： FUJIIE KAZUHIKO
IPC分类号： G11B17/028
摘要： PROBLEM TO BE SOLVED: To obtain constant inertia of a spindle motor by securing stable driving force of the spindle motor.
SOLUTION: In a disk chucking mechanism including a disk table 5 on which a sheet-shaped disk recording medium 300 or a disk-like disk recording medium 400 is mounted and which is rotated by driving force of the spindle motor 4, a stabilizer 6 having an attraction surface opposed to one surface of the disk recording medium, a chucking cap 7 transferable between a bond position bonded to the stabilizer and a separated position separated from the stabilizer, a magnet 20 held by the disk table and a magnetic body 32 held by the chucking cap and attracted to the magnet when the disk table is transferred in a direction approaching the chucking cap, the chucking cap is held in the bond position when the sheet-shaped disk recording medium is mounted on the disk table and the chucking cap is held in the separated position when the disk like disk recording medium is mounted on the disk table.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过确保主轴电机的稳定驱动力来获得主轴电机的恒定惯量。解决方案：在包括盘台5的盘片夹持机构中，其上安装有片状盘记录介质300或盘状盘记录介质400，并通过主轴马达4的驱动力旋转，具有与盘记录介质的一个表面相对的吸引表面的稳定器6，可在粘合到稳定器的粘合位置和与稳定器分离的分离位置之间转移的夹持帽7，由盘台保持的磁体20和磁性体 32，当盘台沿接近夹紧盖的方向转印时，由夹盘盖住并吸附到磁体上，当片状盘片记录介质安装在盘台上时，卡盘盖保持在接合位置，当盘状盘记录介质安装在盘台上时，夹紧盖被保持在分离位置。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2009301611A Vertical magnetic recording medium, magnetic recording and playback device, and method for manufacturing vertical magnetic recording medium 审中-公开
标题翻译：垂直磁记录介质，磁记录和回放装置以及用于制造垂直磁记录介质的方法
公开(公告)号：JP2009301611A
公开(公告)日：2009-12-24
申请号：JP2008152048
申请日：2008-06-10
申请人： Sony Corp , ソニー株式会社
发明人： MIKI TAKESHI , FUJIIE KAZUHIKO
IPC分类号： G11B5/738 , G11B5/84
摘要： PROBLEM TO BE SOLVED: To improve orientation dispersibility of a magnetic recording layer with a simple process.
SOLUTION: In the vertical magnetic recording medium 1, an initial smoothing layer 3 composed of an aluminum alloy including one of copper, nickel, hafnium, and zirconium, a soft magnetic backing layer 4 for adjusting the applied line of magnetic force so as to be vertical to the surface direction of the substrate, an underlayer 6 for putting the crystal structure in order, a magnetic recording layer 7 for recording information in accordance with the direction of the magnetic pole, and a protective film 8 for protecting the magnetic recording layer 7, are arranged on a substrate 2.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过简单的工艺改善磁记录层的取向分散性。解决方案：在垂直磁记录介质1中，由包括铜，镍，铪和锆之一的铝合金构成的初始平滑层3，用于调节所施加的磁力线的软磁背衬层4 垂直于基板的表面方向，用于依次放置晶体结构的底层6，用于根据磁极的方向记录信息的磁记录层7和用于保护磁性的保护膜8 记录层7配置在基板2上。（C）2010，JPO＆INPIT

9. 发明专利

JP2009205730A Perpendicular magnetic recording medium and magnetic recording/playback device 审中-公开
标题翻译：全能磁记录介质和磁记录/回放装置
公开(公告)号：JP2009205730A
公开(公告)日：2009-09-10
申请号：JP2008046449
申请日：2008-02-27
申请人： Sony Corp , ソニー株式会社
发明人： MIKI TAKESHI , FUJIIE KAZUHIKO
IPC分类号： G11B5/66 , G11B5/65 , H01F10/16
摘要： PROBLEM TO BE SOLVED: To improve recording sensitivity by achieving high density.
SOLUTION: The perpendicular magnetic recording medium 1 is constructed by sequentially stacking a soft magnetic backing layer 3, a base layer 5, a recording layer 6, and a protective layer 9 on a substrate 2. The recording layer 6 includes a magnetic recording layer 7 formed on the base layer 5 side and comprising a granular crystal structure containing at least Co and Pt, and a recording auxiliary layer 8 formed on the protective layer 9 side, having coercive force smaller than that of the magnetic recording layer 7 and comprising a granular crystal structure containing at least Fe and Pt.
COPYRIGHT: (C)2009,JPO&INPIT

10. 发明专利

JP2004334983A Recording and reproducing device and method 审中-公开
标题翻译：记录和再现设备和方法
公开(公告)号：JP2004334983A
公开(公告)日：2004-11-25
申请号：JP2003130014
申请日：2003-05-08
申请人： Sony Corp , ソニー株式会社
发明人： TANAKA YASUTO , FUJIIE KAZUHIKO , FUJITA GORO , SAKAMOTO TETSUHIRO , MIKI TAKESHI
IPC分类号： G11B7/007 , G11B7/09 , G11B11/105
CPC分类号： G11B11/10595 , G11B7/00736 , G11B7/094 , G11B7/0945 , G11B11/10576
摘要： PROBLEM TO BE SOLVED: To precisely eliminate the tracking offset and improve the recording and reproducing performance when recording and reproducing a magnetooptical recording medium of a magnetic domain wall movement detection type.
SOLUTION: A test for recording and reproducing a recording medium is carried out while giving a prescribed offset to a tracking error signal by adding an direct current component to the tracking error signal or by making an amplification rate asymmetric to a first and second signals for producing a difference prior to the generation of the tracking error signal. Particularly, the recording of a test pattern is carried out in a state in which a certain offset value is set, and the reproduction of the test pattern is carried out in a state in which the offset is still added, and then the quality of the signal is evaluated based on the test pattern thus reproduced. The above operation is repeated two or more times while changing the offset values, and the offset value at which an optimal signal quality is obtained is determined.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：当记录和再现磁畴壁运动检测类型的磁光记录介质时，精确地消除跟踪偏移并提高记录和再现性能。解决方案：通过向跟踪误差信号添加直流分量或通过使放大率不对称于第一和第二信号来执行用于记录和再现记录介质的测试，同时向跟踪误差信号给出规定的偏移用于在产生跟踪误差信号之前产生差异的信号。特别地，在设定了某个偏移值的状态下进行测试图案的记录，并且在仍然添加偏移量的状态下进行测试图案的再现，然后，基于如此再现的测试图案来评估信号。在改变偏移值的同时，重复上述操作两次或更多次，并且确定获得最佳信号质量的偏移值。版权所有（C）2005，JPO＆NCIPI

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