专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2009296020A Optical module 审中-公开
标题翻译：光学模块
公开(公告)号：JP2009296020A
公开(公告)日：2009-12-17
申请号：JP2009218807
申请日：2009-09-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIRAI MASATAKA , SHIMIZU JUNICHIRO , TSUJI SHINJI
IPC分类号： H01S5/026 , G02F1/017
摘要： PROBLEM TO BE SOLVED: To reduce module power consumption of a modulator integrated laser.
SOLUTION: By constituting a multiple quantum well constituting a laser active layer region of InGaAlAs/InGaAlAs, reliability and a light output level are maintained even when an element is maintained at high temperature. At this time, it is necessary to make the difference between a band gap wavelength of a modulator and an oscillation wavelength of the laser larger by a part proportional to rise of setting temperature of the element in order to maintain transmission characteristics. Thus, difference between temperature of a module case and the setting temperature of the element becomes small, and the module power consumption is reduced.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：降低调制器集成激光器的模块功耗。解决方案：通过构成构成InGaAlAs / InGaAlAs的激光有源层区域的多量子阱，即使元件保持在高温下，仍然保持可靠性和光输出电平。此时，为了保持透射特性，必须使调制器的带隙波长与激光的振荡波长之间的差大于与元件的设定温度的上升成正比的部分。因此，模块壳体的温度与元件的设定温度之间的差异变小，并且模块功耗降低。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2009004030A Optical element integrated head 有权
标题翻译：光学元件集成头
公开(公告)号：JP2009004030A
公开(公告)日：2009-01-08
申请号：JP2007163999
申请日：2007-06-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIMIZU JUNICHIRO , SHISHIKURA MASATO
IPC分类号： G11B7/135 , G11B5/02
CPC分类号： G11B5/314 , G11B7/1387 , G11B2005/0021
摘要： PROBLEM TO BE SOLVED: To obtain an optical element integrated head of high utilization efficiency of light which reduces a propagation loss occurring in a path from a light source to a recording medium by reducing the number of components and performing mounting by a compact active alignment method in order to guide light generated by a laser element to a head tip efficiently.
SOLUTION: In the light source element integrated head, a light source element mounted to a submount has a mirror having an inclined surface in at least a part of its one end face to reflect outputted light from the light source element on an inclined surface, a structure member includes a lens structure to transmit light by passing through the submount, and an optical waveguide is provided through a slider mounted with the submount. Positions of the light source and the slider are adjusted by the use of the active alignment of light in a chip on carrier structure where the light source element is mounted to the submount.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：为了获得光的利用效率高的光学元件集成头，通过减少部件的数量并通过紧凑件的安装来减少从光源到记录介质的路径中的传播损耗主动对准方法，以便有效地将由激光元件产生的光引导到头尖。解决方案：在光源元件集成头中，安装到基座的光源元件具有在其一个端面的至少一部分中具有倾斜表面的反射镜，以将来自光源元件的输出光反射到倾斜表面，结构构件包括通过穿过底座透射光的透镜结构，并且通过安装有底座的滑块提供光波导。通过使用光源元件安装在底座上的载体结构上的芯片中的光的有源对准来调节光源和滑块的位置。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2008204586A Thermal assist magnetic recording head and magnetic recording device 有权
标题翻译：热辅助磁记录头和磁记录装置
公开(公告)号：JP2008204586A
公开(公告)日：2008-09-04
申请号：JP2007042486
申请日：2007-02-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MATSUMOTO TAKUYA , SHIMIZU JUNICHIRO
IPC分类号： G11B5/02 , G11B11/10
CPC分类号： G11B5/314 , G11B5/105 , G11B5/6088 , G11B2005/0021
摘要： PROBLEM TO BE SOLVED: To solve the problem of a conventional thermal assist magnetic recording head in which the intensity of light propagated in a waveguide is fluctuated due to a disturbance such as temperature change or vibration or degradation with time of a semiconductor laser, and fluctuation of the intensity of light incident on a medium surface disables stable recording of a magnetic recording device. SOLUTION: In this thermal assist magnetic recording head, a waveguide 2 is formed in the vicinity of a waveguide 1 for guiding light to the vicinity of a main magnetic pole 6 to branch a part of the light propagated in the waveguide 1 to the waveguide 2. The intensity of the light propagated in the waveguide 1 is detected by detecting the light propagated in the waveguide 2 by a light detector 16. In the magnetic recording device, the intensity of the semiconductor laser 25 is reduced when the incoming light quantity to the light detector 16 is large, and increased when the incoming light quantity to the light detector 16 is small. A feedback group is constituted in this way, whereby the intensity of the light propagated in the waveguide 1 is maintained at a constant level. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了解决传统的热辅助磁记录头的问题，其中在波导中传播的光的强度由于诸如温度变化或振动或半导体激光随时间的劣化的干扰而波动并且入射在介质表面上的光的强度波动使得磁记录装置的稳定记录失效。解决方案：在该热辅助磁记录头中，波导2形成在波导1附近，用于将光引导到主磁极6附近，以将在波导1中传播的光的一部分分支到波导2中传播的光的强度通过检测由光检测器16在波导2中传播的光来检测。在磁记录装置中，当入射光到光检测器16的量大，并且当到达光检测器16的入射光量小时增加。以这种方式构成反馈组，由此在波导1中传播的光的强度保持在恒定水平。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2005353910A Optical integrated device driven by single power supply 有权
标题翻译：由单电源驱动的光学集成设备
公开(公告)号：JP2005353910A
公开(公告)日：2005-12-22
申请号：JP2004174368
申请日：2004-06-11
申请人： Hitachi Ltd , Opnext Japan Inc , 日本オプネクスト株式会社 , 株式会社日立製作所
发明人： SHIMIZU JUNICHIRO , MAKINO SHIGEKI , AOKI MASAHIRO
IPC分类号： H01S5/042 , G02B6/132 , H01L31/00 , H01S5/02 , H01S5/026 , H01S5/12 , H01S5/20 , H01S5/22 , H01S5/227
CPC分类号： H01S5/227 , G02B6/132 , H01S5/0208 , H01S5/02284 , H01S5/026 , H01S5/0265 , H01S5/0421 , H01S5/0425 , H01S5/12 , H01S5/2081 , H01S5/2205
摘要： PROBLEM TO BE SOLVED: To provide optical integrated devices capable of driving them by a single power supply, by realizing a structure, wherein the electrical separation generated between the anodes of the optical integrated devices and the electrical separation generated reasonably between the cathodes of the optical integrated devices are made possible by conventional process techniques.
SOLUTION: The optical integrated devices are formed on a semi-insulating or insulating substrate. The anodes of the respective optical integrated devices are electrically separated from each other. Similarly, the cathodes of the respective optical integrated devices are electrically separated from each other, by providing in optical waveguides which are separating regions installed between the respective optical integrated devices high-resistance regions at least extended from active regions to the substrate.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供能够通过单个电源驱动它们的光学集成器件，通过实现一种结构，其中在光学集成器件的阳极之间产生的电分离和阴极之间合理产生的电分离的光学集成器件通过常规的工艺技术成为可能。解决方案：光学集成器件形成在半绝缘或绝缘衬底上。各个光学集成器件的阳极彼此电分离。类似地，通过在光波导中提供各个光学集成器件的阴极，这些光波导是安装在至少从有源区延伸到衬底的各个光学集成器件高电阻区域之间的分离区域。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2011086338A Magnetic head for thermally assisted recording and magnetic recording device using the same 有权
标题翻译：用于热辅助记录的磁头和使用该磁头的磁记录装置
公开(公告)号：JP2011086338A
公开(公告)日：2011-04-28
申请号：JP2009238187
申请日：2009-10-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IWANABE YASUHIKO , MATSUMOTO TAKUYA , SHIMIZU JUNICHIRO , MIYAMOTO JIICHI
IPC分类号： G11B5/31 , G11B5/02 , G11B5/60
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： PROBLEM TO BE SOLVED: To provide a magnetic head for thermally assisted recording that irradiates a magnetic recording medium with light whose spot size is reduced to a submicron order with high light utilization efficiency. SOLUTION: An optical coupling part 14 for guiding light emitted from a light source 4 to the inside of the magnetic head, and a high refractive index core 15 that is coupled with the light guided by the optical coupling part and guides the light to an air bearing surface, are provided in the inside of the magnetic head. The optical coupling part includes a plurality of thin film type cores 16 separated from each other by a clad material 25. The upper part of the high refractive index core 15 is formed to be held between two thin film type cores 16. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于热辅助记录的磁头，其以高的光利用效率向光记录介质照射光斑尺寸减小到亚微米级的光。解决方案：用于将从光源4发射的光引导到磁头内部的光耦合部分14和与由光耦合部分引导的光耦合的高折射率芯15，并引导光设置在空气轴承表面上，设置在磁头的内部。光耦合部分包括通过包层材料25彼此分开的多个薄膜型芯16.高折射率芯15的上部形成为保持在两个薄膜型芯16之间。：（C）2011，JPO＆INPIT

6. 发明专利

JP2014211934A 高周波磁界アシスト磁気記録ヘッド及びその製造方法审中-公开
标题翻译：高频磁场辅助磁记录头及其制造方法
公开(公告)号：JP2014211934A
公开(公告)日：2014-11-13
申请号：JP2013088538
申请日：2013-04-19
申请人：株式会社日立製作所 , Hitachi Ltd
发明人： KUSUKAWA KIKUO , SHIMIZU JUNICHIRO , WATANABE KATSURO
IPC分类号： G11B5/31
CPC分类号： G11B5/187 , G11B5/3146 , G11B5/315 , G11B5/3163 , G11B2005/0024
摘要：【課題】高周波磁界アシスト磁気記録ヘッドにおいて、主磁極とスピントルク発振素子のクロストラック方向の位置関係を正確に決め、高周波磁界アシスト特性にバラツキが生じない構造とその製造方法を提供する。【解決手段】高周波磁界アシスト磁気記録ヘッドは、主磁極、主磁極上に設けたスピントルク発振素子109、主磁極の側面とスピントルク発振素子の側面を覆う絶縁性のサイドギャップ110を有する。主磁極とスピントルク発振素子を、両側面のサイドギャップの間に挟んで形成することにより、主磁極とスピントルク発振素子の中心の位置がそろったセルフアライメント型の高周波磁界アシスト磁気記録ヘッドの構造を実現する。【選択図】図4
摘要翻译：要解决的问题：通过在高频磁场中精确地确定主磁极与自旋转矩振荡元件的交叉磁道方向之间的位置关系，提供不会引起高频磁场辅助特性波动的结构辅助磁记录头及其制造方法。解决方案：高频磁场辅助磁记录头包括主磁极，自旋扭矩振荡元件109和覆盖主体侧面的绝缘侧间隙110 磁极和自旋转矩振荡元件的侧面。通过形成主磁极和自旋转矩振荡元件以夹在两个侧面间隙之间，实现了自对准型高频磁场辅助磁记录头，其中磁极和旋转的中心位置扭矩振荡元件对齐。

7. 发明专利

JP2014049155A Microwave assisted magnetic recording head 审中-公开
标题翻译： MICROWAVE辅助磁记录头
公开(公告)号：JP2014049155A
公开(公告)日：2014-03-17
申请号：JP2012190336
申请日：2012-08-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIMIZU JUNICHIRO , KUSUKAWA KIKUO , SATO AKIRA , IGARASHI KAZUSUKATSU
IPC分类号： G11B5/31 , G11B5/02
CPC分类号： G11B5/35 , G11B5/1278 , G11B5/314 , G11B5/84 , G11B2005/0024
摘要： PROBLEM TO BE SOLVED: To fixedly determine a positional relation between a main magnetic pole and a spin torque oscillator while optimizing the main magnetic pole and the spin torque oscillator independently of each other.SOLUTION: Steps are provided on boundaries between a main magnetic pole 103 and parts of a gap material 110 on both sides of the main magnetic pole in a trailing edge surface of the main magnetic pole, and a spin torque oscillator is formed on them, and the spin torque oscillator is effectively separated into two areas 109-1 and 109-2 by utilizing the steps, and further a part of the spin torque oscillator is removed to disable the function of the unnecessary area 109-2, whereby a structure of self-alignment microwave assisted magnetic recording head where positions of end parts of the main magnetic pole and the spin torque oscillator are aligned is implemented.
摘要翻译：要解决的问题：固定地确定主磁极和自旋转矩振荡器之间的位置关系，同时彼此独立地优化主磁极和自旋扭矩振荡器。解决方案：在主磁极103 并且在主磁极的后缘表面上的主磁极两侧的间隙材料110的一部分和自旋转矩振荡器形成在其上，并且自旋扭矩振荡器被有效地分成两个区域109-1 和109-2，并且进一步去除了自旋扭矩振荡器的一部分以禁止不需要的区域109-2的功能，由此自对准微波辅助磁记录头的结构，其中端部的位置实现主磁极和自旋转矩振荡器对准。

8. 发明专利

JP2013235621A Microwave-assisted recording magnetic head and magnetic recording device 审中-公开
标题翻译：微波辅助记录磁头和磁记录装置
公开(公告)号：JP2013235621A
公开(公告)日：2013-11-21
申请号：JP2012105625
申请日：2012-05-07
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IGARASHI KAZUSUKATSU , WATANABE KATSURO , HIRAYAMA YOSHIYUKI , SHIMIZU JUNICHIRO
IPC分类号： G11B5/31 , G11B5/02
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording device capable of achieving recording density exceeding 2 terabits per square inch in microwave-assisted recording.SOLUTION: The width of a main magnetic pole 5 and the width of a high-frequency magnetic field generation layer 2 are set to the substantially same for compensating shortage in high-frequency magnetic field intensity and deterioration in high-frequency magnetic field intensity gradient due to narrowing of the width of the high-frequency magnetic field generation layer. Further, a position where a change in a high-frequency magnetic field component that is effective in magnetization inversion is maximized and a position of the reversed magnetic field intensity of a recording medium in the high-frequency magnetic field (intensity and frequency) for use in a head magnetic field are made to match each other.
摘要翻译：要解决的问题：提供一种能够在微波辅助记录中实现超过2兆比特/平方英寸的记录密度的磁记录装置。解决方案：主磁极5的宽度和高频磁场产生层的宽度由于高频磁场产生层的宽度变窄，高频磁场强度梯度的高频磁场强度的劣化和高频磁场强度梯度的劣化被设定为基本相同。此外，在磁化反转中有效的高频磁场分量的变化最大化的位置和记录介质在高频磁场（强度和频率）中的反向磁场强度的位置被使用在磁头磁场中相互匹配。

9. 发明专利

JP2013041637A Heat-assisted magnetic recording head and manufacturing method thereof 审中-公开
标题翻译：热辅助磁记录头及其制造方法
公开(公告)号：JP2013041637A
公开(公告)日：2013-02-28
申请号：JP2011176788
申请日：2011-08-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NUNOKAWA ISAO , SHIMIZU JUNICHIRO , HOSOMI KAZUHIKO , IWANABE YASUHIKO
IPC分类号： G11B5/31
摘要： PROBLEM TO BE SOLVED: To provide a heat-assisted magnetic recording head provided with an optical waveguide with high optical propagation efficiency and small variations in a slider.SOLUTION: An optical waveguide comprises a core composed of an oxide film and a clad layer composed of an oxide film, in which the oxygen content of the clad layer in contact with the core is set to be higher than the stoichiometric composition.

10. 发明专利

JP2012048797A Heat-assisted recording head and magnetic recorder 有权
标题翻译：热辅助记录头和磁记录仪
公开(公告)号：JP2012048797A
公开(公告)日：2012-03-08
申请号：JP2010192115
申请日：2010-08-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIMIZU JUNICHIRO
IPC分类号： G11B5/31
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： PROBLEM TO BE SOLVED: To stabilize an optical mode to provide, obtain a stable heat-assisted effect, and realize stable recording in a heat-assisted magnetic recording head having an optical waveguide.SOLUTION: A magnetic recording head includes: an optical waveguide to guide a laser beam onto a surface of a magnetic recording medium; and, in the vicinity of at least one part where a structure of the optical waveguide changes discontinuously, a shield which absorbs or reflects non-propagating light escaping from the discontinuous part to the outside of the optical waveguide.

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