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1. 发明申请

US20100296983A1 Carbon Nanotube Synthesis Process Apparatus 有权
标题翻译：碳纳米管合成工艺装置
公开(公告)号：US20100296983A1
公开(公告)日：2010-11-25
申请号：US12863528
申请日：2008-11-12
申请人： Shuichi Shiraki , Takeji Murai , Yuzo Nakagawa
发明人： Shuichi Shiraki , Takeji Murai , Yuzo Nakagawa
IPC分类号： B01J19/00
CPC分类号： B01J19/26 , B01J4/002 , B01J2219/00135 , B82Y30/00 , B82Y40/00 , C01B32/164
摘要： A carbon nanotube synthesis process apparatus comprises a reaction tube in which a reaction field is formed, and a discharge pipe (32) arranged downstream of the reaction tube and discharging carbon nanotubes to the outside. A plurality of nozzles (34) are provided on the sidewall of the discharge pipe (32) in directions which are deflected with respect to the center (O) of the discharge pipe (32). When gases are discharged from the plurality of nozzles (34), a swirl flowing from the inner side surface along the inner side surface is produced in the discharge pipe (32). Adhesion of carbon nanotubes to the inner side surface of the discharge pipe (32) is prevented by the swirl flow and thus the apparatus can be operated continuously
摘要翻译：碳纳米管合成工艺装置包括其中形成有反应场的反应管和排放管（32），排放管（32）布置在反应管的下游并将碳纳米管排出到外部。多个喷嘴（34）在排出管（32）的侧壁上相对于排出管（32）的中心（O）偏转的方向设置。当从多个喷嘴（34）排出气体时，在排出管（32）中产生从内侧表面沿着内侧表面流动的漩涡。通过涡旋流阻止碳纳米管与排出管（32）的内侧表面的附着，从而能够连续地操作设备

2. 发明授权

US06947243B2 Method and system for time-shift based rotational vibration sensing in disk drives 失效
公开(公告)号：US06947243B2
公开(公告)日：2005-09-20
申请号：US10153683
申请日：2002-05-24
申请人： Hien Dang , Isao Yoneda , Tetsuo Ueda , Yuzo Nakagawa , Sri M. Sri-Jayantha
发明人： Hien Dang , Isao Yoneda , Tetsuo Ueda , Yuzo Nakagawa , Sri M. Sri-Jayantha
IPC分类号： G11B5/55 , G11B5/596 , G11B25/04
CPC分类号： G11B5/59627 , G11B5/5582 , G11B5/596 , G11B25/043
摘要： A method (and structure) senses a rotational vibration of a disk drive. The disk drive includes a rotating disk. The disk includes a plurality of reference bits across a surface thereof. The method (and structure) includes detecting the reference bits across a pattern on the rotating disk, and analyzing a time interval between adjacent ones of the reference bits.

3. 发明授权

US06643087B1 Disk drive with improved retract circuit and method 有权
标题翻译：磁盘驱动器具有改进的回缩电路和方法
公开(公告)号：US06643087B1
公开(公告)日：2003-11-04
申请号：US09519142
申请日：2000-03-06
申请人： Kenji Kuroki , Thomas R. Albrecht , Fuminori Sai , Yuzo Nakagawa , Nobuhisa Koide , Masashi Murai , Keishi Takahashi , Timothy C. Reiley , Erno H. Klassen
发明人： Kenji Kuroki , Thomas R. Albrecht , Fuminori Sai , Yuzo Nakagawa , Nobuhisa Koide , Masashi Murai , Keishi Takahashi , Timothy C. Reiley , Erno H. Klassen
IPC分类号： G11B2102
CPC分类号： G11B21/12 , G11B19/04
摘要： A method and apparatus to provide a retract circuit that can correspond to the tendency toward miniaturization and low supply voltage. When drive supply voltage Vcc is applied, a retract circuit charges a retract condenser Cr with boosted voltage Vup, equal to three times Vcc, generated by a booster circuit. Then, if the drive supply voltage Vcc is cut off and a VCM driver stops, the retract circuit detects power-off with a power OFF sense circuit, and provides retract delay time by a retract delay circuit. Furthermore, when the retract delay time elapses after the drive power supply is turned off, the retract driver switches the switching circuits on, discharges the retract condenser, charged at the boosted voltage, supplies discharge current to a voice coil, and retracts the head assembly.
摘要翻译：一种提供可以对应于小型化和低电源电压趋势的缩回电路的方法和装置。当施加驱动电源电压Vcc时，后退电路对由升压电路产生的升压电压Vup等于三倍Vcc充电回缩电容器Cr。然后，如果驱动器电源电压Vcc被切断并且VCM驱动器停止，则缩回电路用电源OFF感测电路检测掉电，并且通过缩回延迟电路提供缩回延迟时间。此外，当在驱动电源关闭之后经过缩回延迟时间时，后退驱动器接通开关电路，放电收缩冷凝器，以升压电压充电，向扬声器提供放电电流，并使头部组件。

4. 发明授权

US06549349B2 Adaptive vibration control for servo systems in data storage devices 失效
标题翻译：数据存储设备伺服系统的自适应振动控制
公开(公告)号：US06549349B2
公开(公告)日：2003-04-15
申请号：US09955391
申请日：2001-09-18
申请人： Sri Muthuthamby Sri-Jayantha , Arun Sharma , Hien Phu Dang , Naoyuki Kagami , Yuzo Nakagawa , Akira Tokizono , Isao Yoneda
发明人： Sri Muthuthamby Sri-Jayantha , Arun Sharma , Hien Phu Dang , Naoyuki Kagami , Yuzo Nakagawa , Akira Tokizono , Isao Yoneda
IPC分类号： G11B2736
CPC分类号： G11B21/106 , G11B5/59611
摘要： Methods and systems for detecting and correcting for undesirable vibrations impacting the servo systems in data storage devices. A detection technique is provided wherein a detection filter is configured to scan a position signal of the servo system across a range of frequencies, and, at each respective scanned frequency, record an amplitude associated therewith. The recorded amplitudes are examined to determine whether any exceed a threshold, thereby locating a peak frequency of the vibration. Using the detected peak frequency of the vibration, a corrective filter is configured to operate about the peak frequency of vibration, thereby reducing its impact on the position signal in the servo system. Optimum detection and correction filter structures are disclosed, as are techniques for addressing filter state vectors as initial conditions as the corrective filters are repeatedly engaged during successive settle-out and track follow cycles (between seeks), as are continuous adaptation techniques for changing vibration environments.
摘要翻译：用于检测和校正影响数据存储设备中的伺服系统的不期望的振动的方法和系统。提供了一种检测技术，其中检测滤波器被配置为扫描频率范围内的伺服系统的位置信号，并且在每个相应的扫描频率处记录与之相关联的振幅。检查记录的振幅以确定是否有超过阈值，从而定位振动的峰值频率。使用检测到的振动峰值频率，校正滤波器被配置为围绕振动的峰值频率运行，从而减小其对伺服系统中位置信号的影响。公开了最佳检测和校正滤波器结构，作为用于将滤波器状态向量寻址作为初始条件的技术，校正滤波器在连续的稳定和跟踪周期（寻找之间）期间重复接合），以及用于改变振动环境的连续自适应技术。

5. 发明授权

US08291190B2 Disk drive including a host interface supporting different sizes of data sectors and method for writing data thereto 有权
标题翻译：磁盘驱动器包括支持不同大小的数据扇区的主机接口和用于向其写入数据的方法
公开(公告)号：US08291190B2
公开(公告)日：2012-10-16
申请号：US12545788
申请日：2009-08-21
申请人： Yoshiju Watanabe , Toshio Kakihara , Koichi Arai , Terumi Takashi , Yuzo Nakagawa
发明人： Yoshiju Watanabe , Toshio Kakihara , Koichi Arai , Terumi Takashi , Yuzo Nakagawa
IPC分类号： G06F13/00 , G06F13/28
CPC分类号： G11B5/012 , G11B5/09 , G11B27/11 , G11B27/36 , G11B2220/2516
摘要： A method for writing data to a disk drive. The method includes: receiving a write command; and, determining whether a beginning and an end of a rewrite area specified by the write command agree with boundaries of large-sized data sectors on a disk. The method also includes: reading head and tail data sectors and making a backup of the head and tail data sectors in first and second non-volatile memory areas, respectively, if the beginning of the rewrite area does not agree with the boundaries. The method includes starting a rewrite of the rewrite area after completing backups into first and second non-volatile memory areas. Moreover, the method includes: determining a state stage by using data in first, second, third and fourth non-volatile memory areas if a power shut-down occurs during execution of the write command; and, executing a recovery process in accordance with the determined state stage.
摘要翻译：一种将数据写入磁盘驱动器的方法。该方法包括：接收写命令; 并且确定由写入命令指定的重写区域的开始和结束是否与盘上的大尺寸数据扇区的边界一致。该方法还包括：如果重写区域的开始与边界不一致，则分别读取头部和尾部数据扇区并分别在第一和第二非易失性存储区域中备份头尾数据扇区。该方法包括在完成对第一和第二非易失性存储器区域的备份之后重新开始重写区域的重写。此外，该方法包括：如果在写入命令的执行期间发生电源关闭，则通过使用第一，第二，第三和第四非易失性存储器区域中的数据来确定状态级; 以及根据所确定的状态阶段执行恢复处理。

6. 发明申请

US20100260650A1 Apparatus for Carbon Nanotube Synthesis 有权
标题翻译：碳纳米管合成装置
公开(公告)号：US20100260650A1
公开(公告)日：2010-10-14
申请号：US12740454
申请日：2008-11-11
申请人： Shuichi Shiraki , Takeji Murai , Yuzo Nakagawa
发明人： Shuichi Shiraki , Takeji Murai , Yuzo Nakagawa
IPC分类号： F28D7/00
CPC分类号： B82Y40/00 , B01J4/002 , B01J19/24 , B01J2219/00135 , B82Y30/00 , C01B32/16
摘要： A production amount and a yield in a carbon nanotube producing device are improved. Inside a reaction pipe (20) heated so as to become a circumference heating body, a plurality of nozzles (26) for injecting a material and carrier gas into the reactor pipe and at least one internal heating source (24) are arranged. By arranging a plurality of the nozzles, the production amount is increased. The nozzles are arranged so as to be sandwiched by two heating sources circumference heating element, internal heating source) and a distance to the the closest two heating source peripheral walls is “a”. Also, a distance between the adjacent nozzles is “b” (≧2a). Flows of the material and the carrier gas injected by the nozzles do not interfere with each other or the heating source wall, and the yield is increased.
摘要翻译：碳纳米管制造装置的生产量和产率提高。在被加热成为圆周加热体的反应管（20）的内部，设置有用于将材料和载气注入反应器管的多个喷嘴（26）和至少一个内部加热源（24）。通过设置多个喷嘴，生产量增加。这些喷嘴被布置成被两个加热源围绕加热元件，内部加热源夹持）并且距离最近的两个加热源周边壁的距离为“a”。此外，相邻喷嘴之间的距离为“b”（≧2a）。由喷嘴喷射的材料和载气的流动不会彼此干扰或者加热源壁，并且产率增加。

7. 发明授权

US06678109B2 Disk drive, servo control unit, and control unit 有权
标题翻译：磁盘驱动器，伺服控制单元和控制单元
公开(公告)号：US06678109B2
公开(公告)日：2004-01-13
申请号：US09133464
申请日：1998-08-13
申请人： Naoyuki Kagami , Masayuki Murakami , Yuzo Nakagawa , Tatsuya Sakai
发明人： Naoyuki Kagami , Masayuki Murakami , Yuzo Nakagawa , Tatsuya Sakai
IPC分类号： G11B5596
CPC分类号： G11B5/59611
摘要： A disk drive, a servo controller, and a controller which have realized high-degree control by lightening processing load to a microprocessor unit (MPU) without increasing cost is disclosed. An analog/digital (AD) converter (ADC) performs the AD conversions of the regenerated levels A, B, C, and D of burst patterns supplied from a channel and retains the converted levels in an ADC register. A servo assist (SA) computes parameters, such as the position error of a head, independently of an MPU, based on the regenerated levels of the burst patterns retained in the ADC register and an instruction from the MPU retained in a SRAM. Based on the computed parameters, the SA computes servo data (DACOUT) for driving a voice coil motor and supplies the servo data to the DAC section of a VCM driver section through a SIO.
摘要翻译：公开了一种磁盘驱动器，伺服控制器和控制器，其通过将处理负载减轻到微处理器单元（MPU）而不增加成本而实现了高度的控制。模拟/数字（AD）转换器（ADC）执行从通道提供的脉冲串模式的再生电平A，B，C和D的AD转换，并将转换后的电平保持在ADC寄存器中。伺服辅助（SA）基于保留在ADC寄存器中的脉冲串模式的再生电平和来自保留在SRAM中的MPU的指令，而独立于MPU来计算头部的位置误差等参数。基于计算出的参数，SA计算用于驱动音圈电机的伺服数据（DACOUT），并通过SIO将伺服数据提供给VCM驱动器部分的DAC部分。

8. 发明授权

US06351343B1 Arrangement structure of the printed circuit board and the interface cable connector of a magnetic disk drive 失效
标题翻译：印刷电路板的布置结构和磁盘驱动器的接口电缆连接器
公开(公告)号：US06351343B1
公开(公告)日：2002-02-26
申请号：US08798443
申请日：1997-02-10
申请人： Yuzo Nakagawa , Kiyoshi Satoh , Hiroki Kitahori , Naoyuki Kagami
发明人： Yuzo Nakagawa , Kiyoshi Satoh , Hiroki Kitahori , Naoyuki Kagami
IPC分类号： G11B3312
CPC分类号： G11B25/043 , G11B33/122
摘要： An arrangement structure of the printed circuit board and the interface cable connector of a magnetic disk drive for increasing the degree of freedom of the arrangement of a spindle motor, and for minimizing the size of a printed circuit board. An interface cable connector is disposed on the side opposite to the spindle motor, and the printed circuit board is sized so as not to contact with the spindle motor in the height direction. This allows the degree of freedom of the arrangement of the spindle motor to increase. Further, the distance between the interface cable connector and the preamplifier connector on the printed circuit board is short. Thus, the size of the printed circuit board can be made as small as possible.
摘要翻译：印刷电路板和磁盘驱动器的接口电缆连接器的布置结构，用于增加主轴电动机布置的自由度，并使印刷电路板的尺寸最小化。接口电缆连接器设置在与主轴电动机相对的一侧，并且印刷电路板的尺寸设计成不在高度方向上与主轴电动机接触。这允许主轴电动机的布置的自由度增加。此外，接口电缆连接器和印刷电路板上的前置放大器连接器之间的距离很短。因此，可以使印刷电路板的尺寸尽可能小。

9. 发明授权

US5812338A Method and apparatus for indicating start of servo information on a recording medium 失效
标题翻译：用于在记录介质上指示启动伺服信息的方法和装置
公开(公告)号：US5812338A
公开(公告)日：1998-09-22
申请号：US649578
申请日：1996-05-17
申请人： Kenji Ogasawara , Takashi Nakamura , Nobuya Matsubara , Yuzo Nakagawa , Yuji Kigami , Hiroshi Uchiike , Tsutomu Numata
发明人： Kenji Ogasawara , Takashi Nakamura , Nobuya Matsubara , Yuzo Nakagawa , Yuji Kigami , Hiroshi Uchiike , Tsutomu Numata
IPC分类号： G11B21/10 , G11B5/55 , G11B5/596 , G11B21/08
CPC分类号： G11B21/083 , G11B21/085 , G11B5/553 , G11B5/59655 , G11B5/59688
摘要： A disk and a disk drive having a servo start mark for identifying a servo-information start position recorded on the disk is provided. The servo start mark has a plurality of bit patterns unused for other areas in servo information. A method for identifying the position of a signal transducer on a disk is also provided in which it is judged that the signal transducer is present at a predetermined position even if an error is present and the error is a one-bit error. This is accomplished by assuming that the position is correct when the following conditions are confirmed: (a) a parity error occurs in a read servo-information bit pattern and (b) read servo-information bit pattern does not coincide with servo information of an adjacent track.
摘要翻译：提供具有用于识别记录在盘上的伺服信息开始位置的伺服起始标记的盘和盘驱动器。伺服起始标记对于伺服信息中的其他区域具有未使用的多个位模式。还提供了用于识别盘上的信号换能器的位置的方法，其中即使存在错误并且错误是一位错误，也可以判断信号换能器存在于预定位置。这是通过假设当确定以下条件时位置是正确的：（a）在读取伺服信息位模式中发生奇偶校验错误，（b）读取伺服信息位模式与伺服信息位模式的伺服信息不一致相邻轨道。

10. 发明授权

US5401850A Cyclopropachromen derivatives 失效
标题翻译：环磷酰胺衍生物
公开(公告)号：US5401850A
公开(公告)日：1995-03-28
申请号：US15030
申请日：1993-02-08
申请人： Toshio Tatsuoka , Kayoko Nomura , Yuzo Nakagawa , Shizuo Nakamura
发明人： Toshio Tatsuoka , Kayoko Nomura , Yuzo Nakagawa , Shizuo Nakamura
IPC分类号： C07D311/94 , C07D413/12 , A61K31/35 , A61K31/44
CPC分类号： C07D311/94
摘要： A cyclopropachromen derivative represented by formula (I): ##STR1## The compounds are capable of promoting the extension of nerve dendrites and are useful as improving and treating agents for cerebral organic disorders and psychic function disorders.
摘要翻译：（I）表示的环丙色胺衍生物：（I）化合物能够促进神经树突的延伸，并且可用作改善和治疗脑部有机疾病和精神功能障碍的药剂。

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