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1. 发明授权

US07595955B2 Disk drive device and method for error recovery procedure therefor 失效
标题翻译：磁盘驱动器及其错误恢复方法
公开(公告)号：US07595955B2
公开(公告)日：2009-09-29
申请号：US12069311
申请日：2008-02-07
申请人： Mirei Hosono , Kazunari Tsuchimoto , Hideki Ohzeki , Tetsuo Ueda , Isao Yoneda , Kazuyuki Ishibashi , Hiroshi Uchida
发明人： Mirei Hosono , Kazunari Tsuchimoto , Hideki Ohzeki , Tetsuo Ueda , Isao Yoneda , Kazuyuki Ishibashi , Hiroshi Uchida
IPC分类号： G11B5/596 , G11B20/20
CPC分类号： G11B5/59688 , G11B5/59627
摘要： Embodiments of the present invention help to achieve a read error recovery, and suppress decreases in the capacity of the disk drive device and degradation in performance. In one embodiment, a hard disk drive (HDD) performs following control without use of repeatable run-out (RRO) compensation information on a magnetic disk in a normal reading process. When an error occurs in a normal reading process, the HDD moves a read element to a position different from a target position of the normal reading process. At the position where the read element has been moved, the read element reads out the RRO compensation information. In a recovery procedure for the reading process where the error has occurred, the HDD performs following control with compensation by the servo compensation information read out by the read element.
摘要翻译：本发明的实施例有助于实现读错误恢复，并且抑制磁盘驱动装置的容量的降低和性能的降低。在一个实施例中，硬盘驱动器（HDD）在正常读取过程中不使用磁盘上的可重复的耗尽（RRO）补偿信息执行以下控制。当在正常读取过程中发生错误时，HDD将读取元件移动到与正常读取处理的目标位置不同的位置。在读取元素移动的位置，读取元件读出RRO补偿信息。在发生错误的读取处理的恢复过程中，HDD通过由读取元素读出的伺服补偿信息进行补偿来执行以下控制。

2. 发明申请

US20070230025A1 Magnetic recording apparatus 失效
标题翻译：磁记录装置
公开(公告)号：US20070230025A1
公开(公告)日：2007-10-04
申请号：US11725038
申请日：2007-03-15
申请人： Hiroshi Uchida , Mirei Hosono , Hideki Ohzeki , Tetsuo Ueda
发明人： Hiroshi Uchida , Mirei Hosono , Hideki Ohzeki , Tetsuo Ueda
IPC分类号： G11B5/596
CPC分类号： G11B5/59627
摘要： Embodiments of the present invention provide a magnetic recording apparatus capable of generating RRO compensation information that can expand the disturbance frequency range in which to compensate for RRO. Embodiments of the present invention describe a magnetic recording apparatus that uses a plurality of repetitive control systems to detect repeatable runout during the rotation of a magnetic recording medium for a frequency characteristic of each of the repetitive control systems. The magnetic recording apparatus further generates compensation information to compensate for each of the detected repeatable runout. The magnetic recording apparatus still further writes the compensation information generated for each of the repetitive control systems to a servo signal, thus suppressing and controlling the repeatable runout.
摘要翻译：本发明的实施例提供一种磁记录装置，其能够产生可以扩大其中补偿RRO的干扰频率范围的RRO补偿信息。本发明的实施例描述了一种磁记录装置，其使用多个重复控制系统来检测用于每个重复控制系统的频率特性的磁记录介质旋转期间的可重复跳动。磁记录装置进一步产生补偿信息以补偿每个检测到的可重复跳动。磁记录装置还将针对每个重复控制系统生成的补偿信息写入伺服信号，从而抑制和控制可重复的跳动。

3. 发明授权

US07247514B2 Semiconductor device and method for producing the same 有权
公开(公告)号：US07247514B2
公开(公告)日：2007-07-24
申请号：US10819873
申请日：2004-04-06
申请人： Keiji Yamane , Tetsuo Ueda , Takashi Miyamoto , Isao Kidoguchi
发明人： Keiji Yamane , Tetsuo Ueda , Takashi Miyamoto , Isao Kidoguchi
IPC分类号： H01L33/00
CPC分类号： H01L24/83 , H01L24/29 , H01L2224/291 , H01L2224/29109 , H01L2224/29111 , H01L2224/29118 , H01L2224/29144 , H01L2224/29147 , H01L2224/8319 , H01L2224/838 , H01L2224/83805 , H01L2924/01006 , H01L2924/01024 , H01L2924/01029 , H01L2924/0103 , H01L2924/01033 , H01L2924/01042 , H01L2924/01047 , H01L2924/0105 , H01L2924/01078 , H01L2924/01079 , H01L2924/01082 , H01L2924/0132 , H01L2924/01322 , H01L2924/0133 , H01L2924/014 , H01L2924/10329 , H01L2924/12042 , H01L2924/1579 , H01L2924/351 , H01S5/0014 , H01S5/0224 , H01S5/02272 , H01S5/02476 , H01S5/0425 , H01S5/32341 , H01L2924/01014 , H01L2924/00 , H01L2924/01032 , H01L2924/01028 , H01L2924/01049 , H01L2924/01051 , H01L2924/00014 , H01L2924/00012
摘要： A method for producing a semiconductor device of the present invention includes forming a surface electrode on a semiconductor element, forming a solder layer by plating on one principal surface of the surface electrode, mounting the semiconductor element on the sub-mount so that the solder layer contacts a principal surface of the sub-mount, and bonding the sub-mount and the semiconductor element to each other via the solder layer.

4. 发明授权

US07192851B2 Semiconductor laser manufacturing method 有权
标题翻译：半导体激光制造方法
公开(公告)号：US07192851B2
公开(公告)日：2007-03-20
申请号：US10931206
申请日：2004-09-01
申请人： Keiji Yamane , Tetsuo Ueda , Isao Kidoguchi , Toshiya Kawata
发明人： Keiji Yamane , Tetsuo Ueda , Isao Kidoguchi , Toshiya Kawata
IPC分类号： H01L21/00
CPC分类号： B82Y20/00 , H01S5/0202 , H01S5/028 , H01S5/0287 , H01S5/168 , H01S5/2206 , H01S5/2214 , H01S5/2231 , H01S5/34333
摘要： A method for manufacturing a semiconductor laser. As a preparative step for coating an end face of a resonator with a dielectric film, a cleavage plane of a semiconductor laminated structure that is to be the end face is subjected to a plasma cleaning to prevent a conductive film, which absorbs laser light, from attaching to the cleavage plane. During the plasma cleaning, a first process gas containing argon gas and nitrogen gas is introduced into a vacuumed ECR sputtering apparatus. After the cleavage plane is exposed to the first process gas in the plasma state for a certain time period without application of a voltage, a second process gas containing argon gas and oxygen gas is introduced, and the cleavage plane is exposed to the second process gas in the plasma state while a voltage is applied to the silicon target.
摘要翻译：一种半导体激光器的制造方法。作为用电介质膜涂覆谐振器的端面的制备步骤，将作为端面的半导体层叠结构的解理面进行等离子体清洗，以防止吸收激光的导电膜附着于解理面。在等离子体清洗期间，将含有氩气和氮气的第一工艺气体引入真空的ECR溅射装置中。在不施加电压的情况下，在等离子体状态下将解理面暴露于等离子体状态的第一工艺气体一定时间后，引入含有氩气和氧气的第二工艺气体，并将解理面暴露于第二工艺气体处于等离子体状态，同时向硅靶施加电压。

5. 发明申请

US20060092550A1 Data reliability improvement at low temperature 有权
标题翻译：低温数据可靠性提高
公开(公告)号：US20060092550A1
公开(公告)日：2006-05-04
申请号：US11266129
申请日：2005-11-02
申请人： Satoshi Ishii , Masato Taniguchi , Tetsuo Ueda , Noboru Yoshida
发明人： Satoshi Ishii , Masato Taniguchi , Tetsuo Ueda , Noboru Yoshida
IPC分类号： G11B21/02
CPC分类号： G11B5/6064 , G11B5/54 , G11B5/607 , G11B21/12 , G11B21/22
摘要： Embodiments of the invention perform a stable data write operation at a low operating ambient temperature and promptly perform a write command process within a magnetic recording apparatus that employs a load/unload design. In one embodiment, write heads unloaded on a ramp are completely preheated before magnetic disks reach their rated rotation speed. This preheat operation takes time T1. After completion of write head preheating, the write heads are loaded from the ramp. This loading operation takes time T2. Since time T1 and time T2 do not sequentially elapse, it is possible to prevent a write operation from being rendered unstable by thermal protrusion while expediting a write command process.
摘要翻译：本发明的实施例在低操作环境温度下执行稳定的数据写入操作，并且在采用加载/卸载设计的磁记录装置内及时执行写命令处理。在一个实施例中，在磁盘达到其额定转速之前，在斜坡上卸载的写头被完全预热。此预热操作需要时间T 1.写入头预热完成后，写入头从斜坡加载。该加载操作需要时间T 2。由于时间T 1和时间T 2不顺序地经过，所以可以防止写入操作在加速写入命令处理时由于热突起而变得不稳定。

6. 发明授权

US06985504B2 Semiconductor laser and method for manufacturing the same 有权
公开(公告)号：US06985504B2
公开(公告)日：2006-01-10
申请号：US10368206
申请日：2003-02-18
申请人： Tetsuo Ueda , Keiji Yamane , Isao Kidoguchi , Shoji Fujimori
发明人： Tetsuo Ueda , Keiji Yamane , Isao Kidoguchi , Shoji Fujimori
IPC分类号： H01S5/00
CPC分类号： H01S5/028
摘要： A semiconductor laser includes an active layer formed on a substrate and a pair of cladding layers sandwiching the active layer. On at least one of resonator end faces of the semiconductor laser, a first dielectric film with hydrogen added therein is provided. Between the first dielectric film and the resonator end face, a second dielectric film for suppressing the diffusion of hydrogen is provided. Even when a semiconductor laser with an end face coating film including a hydrogen-added film is exposed to high temperatures, peeling of the end face coating film and deterioration of the end face coating film can be suppressed.

7. 发明申请

US20050059181A1 Semiconductor laser manufacturing method 有权
标题翻译：半导体激光制造方法
公开(公告)号：US20050059181A1
公开(公告)日：2005-03-17
申请号：US10931206
申请日：2004-09-01
申请人： Keiji Yamane , Tetsuo Ueda , Isao Kidoguchi , Toshiya Kawata
发明人： Keiji Yamane , Tetsuo Ueda , Isao Kidoguchi , Toshiya Kawata
IPC分类号： H01S5/028 , H01L21/00 , H01L21/26 , H01L21/42 , H01S5/00 , H01S5/02 , H01S5/16 , H01S5/22 , H01S5/223 , H01S5/343
CPC分类号： B82Y20/00 , H01S5/0202 , H01S5/028 , H01S5/0287 , H01S5/168 , H01S5/2206 , H01S5/2214 , H01S5/2231 , H01S5/34333
摘要： A method for manufacturing a semiconductor laser. As a preparative step for coating an end face of a resonator with a dielectric film, a cleavage plane of a semiconductor laminated structure that is to be the end face is subjected to a plasma cleaning to prevent a conductive film, which absorbs laser light, from attaching to the cleavage plane. During the plasma cleaning, a first process gas containing argon gas and nitrogen gas is introduced into a vacuumed ECR sputtering apparatus. After the cleavage plane is exposed to the first process gas in the plasma state for a certain time period without application of a voltage, a second process gas containing argon gas and oxygen gas is introduced, and the cleavage plane is exposed to the second process gas in the plasma state while a voltage is applied to the silicon target.
摘要翻译：一种半导体激光器的制造方法。作为用电介质膜涂覆谐振器的端面的制备步骤，将作为端面的半导体叠层结构的解理面进行等离子体清洗，以防止吸收激光的导电膜附着于解理面。在等离子体清洗期间，将含有氩气和氮气的第一工艺气体引入真空的ECR溅射装置中。在不施加电压的情况下，在等离子体状态下将解理面暴露于等离子体状态的第一工艺气体一定时间后，引入含有氩气和氧气的第二工艺气体，并将解理面暴露于第二工艺气体处于等离子体状态，同时向硅靶施加电压。

8. 发明授权

US06671110B2 Method and apparatus for detecting abnormal magnetic head fly height 失效
标题翻译：用于检测异常磁头飞高的方法和装置
公开(公告)号：US06671110B2
公开(公告)日：2003-12-30
申请号：US09776360
申请日：2001-02-02
申请人： Sachiyo Baba , Yukio Fukushima , Hidetsugu Tanka , Tetsuo Ueda
发明人： Sachiyo Baba , Yukio Fukushima , Hidetsugu Tanka , Tetsuo Ueda
IPC分类号： G11B2736
CPC分类号： G11B21/21 , G11B5/012 , G11B5/6029
摘要： A method and apparatus for detecting an abnormal fly height of a magnetic head. The method includes reproducing a servo signal recorded on a magnetic disk in advance by the magnetic head when a write operation for writing data on the magnetic disk by the magnetic head is initiated. Next, the gain of the servo signal based on the head part of the servo signal reproduced by the magnetic head is determined. The gain of the servo signal is then compared with a reference value to detect an abnormal fly height of the magnetic head. In an advantageous embodiment, the reference value is the gain of a servo signal determined when the fly height of the magnetic head is normal. Alternatively, in other advantageous embodiments, the reference value is based on the gain of a previous servo signal.
摘要翻译：一种用于检测磁头的异常飞行高度的方法和装置。该方法包括当通过磁头写入磁盘上的数据的写入操作时，由磁头预先再现记录在磁盘上的伺服信号。接下来，确定基于由磁头再现的伺服信号的头部的伺服信号的增益。然后将伺服信号的增益与参考值进行比较，以检测磁头的异常飞行高度。在有利的实施例中，参考值是当磁头的飞行高度正常时确定的伺服信号的增益。或者，在其他有利的实施例中，参考值基于先前伺服信号的增益。

9. 发明授权

US06597530B2 Method and apparatus for disk drive seek control 失效
公开(公告)号：US06597530B2
公开(公告)日：2003-07-22
申请号：US09935272
申请日：2001-08-22
申请人： Hideo Asano , Kenji Okada , Tetsuo Ueda , Koichi Arai , Hideki Ohzeki
发明人： Hideo Asano , Kenji Okada , Tetsuo Ueda , Koichi Arai , Hideki Ohzeki
IPC分类号： G11B5596
CPC分类号： G11B5/5547
摘要： A disk drive seek control system device to reduce track pitch. When data is recorded, an offset value is added to the position of a read head element along the width of a track corresponding to an offset &Dgr;w between the read head element and a write head element. The value of the offset depends on the yaw angle &thgr; of the head. When data is read, the position of the read head element is chosen to be either the position of the write head element during write operations, or the midpoint between the position of the write head element and the read head element during write operations, or the center of a track.

10. 发明授权

US06441982B1 Dummy write method for a magnetic head and drive unit for carrying out the method 失效
标题翻译：用于执行该方法的磁头和驱动单元的虚拟写入方法
公开(公告)号：US06441982B1
公开(公告)日：2002-08-27
申请号：US09448234
申请日：1999-11-24
申请人： Yukio Fukushima , Tetsuo Ueda , Hideo Asano
发明人： Yukio Fukushima , Tetsuo Ueda , Hideo Asano
IPC分类号： G11B509
CPC分类号： G11B5/00 , G11B5/012 , G11B2005/0008 , G11B2005/0013 , G11B2005/0021
摘要： A drive unit which recovers from write instability by heating the magnetic head prior to performing a dummy write operation is described. In the preferred embodiments, once write instability has been detected the head may be heated by friction with the rotating disk or by an external heater. In the friction method the head is moved to a safe area of the disk such as a textured landing zone while the disk rotation is continued. In drives using unload ramps, a heater is preferably placed at the the ramp so that the head can be heated while parked on the ramp. In each of these embodiments dummy write operations are performed while the head is in a thermally excited state due to the heating. The combination of heating and the dummy write operation aids in restoring write stability.
摘要翻译：描述通过在执行虚拟写入操作之前加热磁头而从写入不稳定性恢复的驱动单元。在优选实施例中，一旦检测到写入不稳定性，头部可以通过与旋转盘的摩擦或外部加热器的摩擦来加热。在摩擦方法中，当盘旋转持续时，头移动到盘的安全区域，例如纹理着陆区。在使用卸载斜坡的驱动器中，优选地将加热器放置在斜坡处，使得头部可以在停放在斜坡上时被加热。在这些实施例的每一个中，由于加热，头部处于热激发状态时执行伪写入操作。加热和虚拟写入操作的组合有助于恢复写入稳定性。

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