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1. 发明授权

US07925028B2 Electronic device having a blower with noise control 有权
标题翻译：电子设备具有带噪音控制的鼓风机
公开(公告)号：US07925028B2
公开(公告)日：2011-04-12
申请号：US12026822
申请日：2008-02-06
申请人： Nobuhiro Yokoyama , Takashi Chikusa , Masao Iwakura
发明人： Nobuhiro Yokoyama , Takashi Chikusa , Masao Iwakura
IPC分类号： G10K11/16 , F24F13/24 , F04D29/66 , F01D25/04
CPC分类号： F04D29/005 , F04D25/0633 , F04D25/064 , F04D25/0646 , F04D29/661 , F04D29/663 , F04D29/665 , F04D33/00 , H02P6/00
摘要： An electronic device having a first motor which rotates a rotating body (for example, blades) about a rotation axis and a second motor which vibrates a vibrator including the rotating body in the axial direction is provided. A control IC unit has a first circuit which subjects the rotation to control drive by a first waveform, and a second circuit which subjects the vibration to control drive by a second waveform. Rotation and vibration of a rotating and vibrating unit driven by the first and second motors generates an airflow and output sound by a synthesized output of a first output corresponding to the rotation and a second output corresponding to the vibration. The control IC unit generates a second waveform by using a reversed-phase waveform with respect to the first waveform or the like and suppresses the output sound by control of the first and second waveforms.
摘要翻译：提供一种电子设备，其具有围绕旋转轴旋转旋转体（例如，叶片）的第一电动机和使包括旋转体的振动器沿轴向振动的第二电动机。控制IC单元具有使旋转控制第一波形的第一电路和使振动控制第二波形的第二电路。由第一和第二电动机驱动的旋转和振动单元的旋转和振动通过对应于旋转的第一输出的合成输出和对应于振动的第二输出产生气流和输出声音。控制IC单元通过使用相对于第一波形等的反相波形来生成第二波形，并且通过控制第一和第二波形来抑制输出声音。

2. 发明申请

US20090129936A1 ELECTRONIC DEVICE HAVING BLOWER 有权
标题翻译：具有鼓风机的电子设备
公开(公告)号：US20090129936A1
公开(公告)日：2009-05-21
申请号：US12026822
申请日：2008-02-06
申请人： Nobuhiro YOKOYAMA , Takashi Chikusa , Masao Iwakura
发明人： Nobuhiro YOKOYAMA , Takashi Chikusa , Masao Iwakura
IPC分类号： F04B49/06 , F04B17/03 , H02P5/00
CPC分类号： F04D29/005 , F04D25/0633 , F04D25/064 , F04D25/0646 , F04D29/661 , F04D29/663 , F04D29/665 , F04D33/00 , H02P6/00
摘要： An electronic device having a first motor which rotates a rotating body (for example, blades) about a rotation axis and a second motor which vibrates a vibrator including the rotating body in the axial direction is provided. A control IC unit has a first circuit which subjects the rotation to control drive by a first waveform, and a second circuit which subjects the vibration to control drive by a second waveform. Rotation and vibration of a rotating and vibrating unit driven by the first and second motors generates an airflow and output sound by a synthesized output of a first output corresponding to the rotation and a second output corresponding to the vibration. The control IC unit generates a second waveform by using a reversed-phase waveform with respect to the first waveform or the like and suppresses the output sound by control of the first and second waveforms.
摘要翻译：提供一种电子设备，其具有围绕旋转轴旋转旋转体（例如，叶片）的第一电动机和使包括旋转体的振动器沿轴向振动的第二电动机。控制IC单元具有使旋转控制第一波形的第一电路和使振动控制第二波形的第二电路。由第一和第二电动机驱动的旋转和振动单元的旋转和振动通过对应于旋转的第一输出的合成输出和对应于振动的第二输出产生气流和输出声音。控制IC单元通过使用相对于第一波形等的反相波形来生成第二波形，并且通过控制第一和第二波形来抑制输出声音。

3. 发明授权

US07330334B2 Magnetic disk apparatus with shroud and having open space downstream of moveable arms in communication with bypass channel 失效
标题翻译：具有护罩的磁盘装置，并且具有与旁路通道连通的可动臂下游的开放空间
公开(公告)号：US07330334B2
公开(公告)日：2008-02-12
申请号：US11129335
申请日：2005-05-16
申请人： Hayato Shimizu , Masao Iwakura , Shigeo Nakamura , Kazuo Sakai , Shigenori Togashi , Masayuki Kaiho , Toshiaki Kobari , Mikio Tokuyama , Satomitsu Imai , Shozo Saegusa , Masahiko Sega , Toshihisa Okazaki , Yuzo Yamaguchi
发明人： Hayato Shimizu , Masao Iwakura , Shigeo Nakamura , Kazuo Sakai , Shigenori Togashi , Masayuki Kaiho , Toshiaki Kobari , Mikio Tokuyama , Satomitsu Imai , Shozo Saegusa , Masahiko Sega , Toshihisa Okazaki , Yuzo Yamaguchi
IPC分类号： G11B33/14
CPC分类号： G11B25/043 , G11B5/6005 , G11B33/142 , G11B33/1446 , G11B33/148
摘要： A magnetic disk apparatus includes a plurality of magnetic disks driven to rotate by a spindle motor, arms supporting magnetic heads on the magnetic disks, an actuator for moving the arms on the magnetic disks by a voice coil motor, and a housing which surrounds the magnetic disks, the arms and the actuator. A shroud which arcuately surrounds the magnetic disks along the outer periphery thereof has an opened portion for inserting the arms is formed in a part of the housing. The shroud on an upstream side of the arms relative to airflow generated by the magnetic disks when rotating is provided with an opening having a greater width than that of a gap defined between the shroud and the outer periphery of the magnetic disks. An empty bypass channel is provided which communicates from the opening through a rear side of the voice coil motor to the downstream side of the arms.
摘要翻译：一种磁盘装置，包括由主轴电动机驱动旋转的多个磁盘，支撑在磁盘上的磁头的臂，用于通过音圈电机将臂支撑在磁盘上的致动器，以及围绕磁性的壳体磁盘，臂和致动器。沿其外周弧形围绕磁盘的护罩具有用于插入臂的开口部分形成在壳体的一部分中。臂相对于旋转时由磁盘产生的气流在臂的上游侧的护罩设置有具有比限定在护罩与磁盘外周之间的间隙大的宽度的开口。提供了一个空的旁路通道，其从开口通过音圈马达的后侧连通到臂的下游侧。

4. 发明申请

US20070047130A1 Structure to prevent deformation of magnetic disk device housing 失效
标题翻译：防止磁盘装置外壳变形的结构
公开(公告)号：US20070047130A1
公开(公告)日：2007-03-01
申请号：US11499482
申请日：2006-08-03
申请人： Hiroaki Shigenaga , Sunao Yonekawa , Masao Iwakura , Masami Miyatake
发明人： Hiroaki Shigenaga , Sunao Yonekawa , Masao Iwakura , Masami Miyatake
IPC分类号： G11B15/48
CPC分类号： G11B33/1433
摘要： Embodiments of the invention provide a magnetic disk unit in which there has been adopted a structure fixing a base and a top plate and preventing a deformation by a bimetal effect. In one embodiment, the magnetic disk unit includes a magnetic disk; a head drive mechanism in which is mounted a head accessing the magnetic disk; a base accommodating the magnetic disk and the head drive mechanism, and possessing a flat part, in which a threaded hole has been formed, in a circumference of an opening edge; and a top cover which is formed by a material whose thermal expansion coefficient differs from that of the base, in which there is provided an escape hole, for a screw, position-aligned to the threaded hole of the flat part, and which is attached to the base by the screw penetrating through the threaded hole and the escape hole for the screw. A slip mechanism for reducing a slip friction resistance is provided respectively in a contact portion between the flat part and the top cover, and a contact portion between a head part of the screw and the top cover.
摘要翻译：本发明的实施例提供一种磁盘单元，其中采用固定基座和顶板的结构，并且防止双金属效应的变形。在一个实施例中，磁盘单元包括磁盘; 头驱动机构，其安装有磁头访问磁盘; 容纳磁盘和磁头驱动机构的基座，并且在开口边缘的圆周上具有形成有螺纹孔的平坦部分; 以及顶盖，其由与热膨胀系数不同的材料形成，所述材料具有与所述基座相对应的材料，所述基部设有用于与所述平坦部的所述螺纹孔对准的螺钉的排出孔，通过螺钉穿过螺纹孔和螺钉的排出孔到基座。分别在平坦部和顶盖之间的接触部以及螺钉的头部与顶盖之间的接触部分分别设置用于降低滑动摩擦阻力的滑动机构。

5. 发明授权

US06369978B1 Magnetic disk apparatus with shroud having opening downstream of moveable arm 失效
标题翻译：具有护罩的磁盘装置具有可动臂下游的开口
公开(公告)号：US06369978B1
公开(公告)日：2002-04-09
申请号：US09356056
申请日：1999-07-16
申请人： Hayato Shimizu , Masao Iwakura , Shigeo Nakamura , Kazuo Sakai , Shigenori Togashi , Masayuki Kaiho , Toshiaki Kobari
发明人： Hayato Shimizu , Masao Iwakura , Shigeo Nakamura , Kazuo Sakai , Shigenori Togashi , Masayuki Kaiho , Toshiaki Kobari
IPC分类号： G11B3314
CPC分类号： G11B5/6005 , G11B33/1446
摘要： To suppress pressure fluctuation caused by insertion of arms between disks, which arms support thereon magnetic heads, to reduce disk flutter to thereby reduce disk driving power in a magnetic disk apparatus, there are provided an open space not covered by a shroud, which constitutes a part of a housing structure to cover a side surface of a disk stack, and provided on a downstream side of the arms relative to an airflow moving along surfaces of the disks as the disks rotate, and a channel, which connects a space on an upstream side of the arms and the open space not restricted by the shroud on the downstream side of the arms, the channel being provided with a linear section, which has a rectifying effect on the airflow.
摘要翻译：为了抑制由于在其上支撑磁头的磁盘之间的臂的插入引起的压力波动，以减少磁盘振动从而减小磁盘装置中的磁盘驱动能力，提供未被罩盖覆盖的开放空间，其构成一个壳体结构的一部分，以覆盖盘堆叠的侧表面，并且相对于沿着盘旋转的沿着盘的表面移动的气流设置在臂的下游侧;以及通道，其连接上游的空间臂和开放空间不受臂的下游侧的护罩的限制，通道设有直线部分，其对气流具有整流作用。

6. 发明授权

US06600626B2 Magnetic disk apparatus 有权
公开(公告)号：US06600626B2
公开(公告)日：2003-07-29
申请号：US10103318
申请日：2002-03-22
申请人： Hayato Shimizu , Masao Iwakura , Shigeo Nakamura , Kazuo Sakai , Shigenori Togashi , Masayuki Kaiho , Toshiaki Kobari , Mikio Tokuyama , Satomitsu Imai , Shozo Saegusa , Masahiko Sega , Toshihisa Okazaki , Yuzo Yamaguchi
发明人： Hayato Shimizu , Masao Iwakura , Shigeo Nakamura , Kazuo Sakai , Shigenori Togashi , Masayuki Kaiho , Toshiaki Kobari , Mikio Tokuyama , Satomitsu Imai , Shozo Saegusa , Masahiko Sega , Toshihisa Okazaki , Yuzo Yamaguchi
IPC分类号： G11B3314
CPC分类号： G11B25/043 , G11B5/6005 , G11B33/142 , G11B33/1446 , G11B33/148
摘要： A magnetic disk apparatus arranged in a housing having a plurality of magnetic disks stacked on a rotating shaft, arms supporting thereon magnetic heads and adapted to be inserted between said magnetic disks, a rotary actuator for moving the arms, a housing forming at least a part of an arcuate-shaped shroud which substantially surrounds a portion of side surfaces of the magnetic disks so as to permit movement of the arms and which is concentric with the magnetic disks so as to define a gap between the shroud and the portion of the side surfaces of said magnetic disks. The gap defined between the outer peripheral end surfaces of the magnetic disks and the shroud is in a range of 0.1 mm to 0.6 mm.

7. 发明授权

US5720442A Capstanless tape driving method and information recording and reproduction apparatus 失效
标题翻译：无磁带磁带驱动方法和信息记录和再现装置
公开(公告)号：US5720442A
公开(公告)日：1998-02-24
申请号：US680791
申请日：1996-07-16
申请人： Norihisa Yanagihara , Shinsuke Nakagawa , Shigeyuki Kobata , Masao Iwakura , Kazuo Sakai
发明人： Norihisa Yanagihara , Shinsuke Nakagawa , Shigeyuki Kobata , Masao Iwakura , Kazuo Sakai
IPC分类号： G11B15/46 , G11B15/467 , B65H59/38
CPC分类号： G11B15/46 , G11B15/4673
摘要： A load torque imposed on a take-up reel motor is estimated from the current in a take-up reel motor and the rotational speed of the take-up reel. The current value supplied to the take-up reel motor is adjusted on the basis of the estimated load torque. A tape feed rate detected is compared with a reference signal produced from a target tape speed signal. On the basis of the comparison result, the torque of the take-up reel motor is controlled in such a manner that the tape feed rate assumes a predetermined value. The gain of a speed control system for controlling the rotational speed of the take-up reel is adjusted on the basis of a detected period of tape speed.
摘要翻译：卷取卷轴电动机中的电流和卷取卷轴的旋转速度估计施加在卷取卷轴电动机上的负载转矩。基于估计的负载转矩来调整提供给卷取电动机的电流值。将检测到的送带速率与从目标带速度信号产生的参考信号进行比较。基于比较结果，卷取卷盘马达的扭矩以带进给速度为预定值的方式被控制。基于检测到的带速的周期来调整用于控制卷取卷轴的转速的速度控制系统的增益。

8. 发明授权

US06728074B2 Method and apparatus for information recording and reproducing using an air force latch mechanism 失效
标题翻译：用于使用空气锁定机构的信息记录和再现的方法和装置
公开(公告)号：US06728074B2
公开(公告)日：2004-04-27
申请号：US09956062
申请日：2001-09-20
申请人： Kazuyoshi Hanada , Masao Iwakura , Yasuyuki Hozumi , Kazumi Fujimoto
发明人： Kazuyoshi Hanada , Masao Iwakura , Yasuyuki Hozumi , Kazumi Fujimoto
IPC分类号： G11B554
CPC分类号： G11B5/54
摘要： In a latch release apparatus and method, a latch mechanism holds an actuator with a high shock resistance. Two or more magnetic members are arranged in a latch component so as to concentrate a magnetic force for easy rotation of the latch component. The effect of the magnetic force in a direction perpendicular to the direction of rotation of the magnetic members becomes smaller, reducing the friction force at the rotational center of the latch.
摘要翻译：在闩锁释放装置和方法中，闩锁机构保持具有高抗震性的致动器。两个或多个磁性构件布置在闩锁部件中，以便集中磁力以容易地旋转闩锁部件。磁力在与磁性构件的旋转方向垂直的方向上的影响变小，从而减小了闩锁旋转中心处的摩擦力。

9. 发明授权

US06717774B2 Information recording and reproducing apparatus with an air force latch mechanism 失效
标题翻译：具有空气锁定机构的信息记录和再现装置
公开(公告)号：US06717774B2
公开(公告)日：2004-04-06
申请号：US09956061
申请日：2001-09-20
申请人： Kazuyoshi Hanada , Masao Iwakura , Yasuyuki Hozumi , Kazumi Fujimoto
发明人： Kazuyoshi Hanada , Masao Iwakura , Yasuyuki Hozumi , Kazumi Fujimoto
IPC分类号： G11B554
CPC分类号： G11B5/54
摘要： In a latch mechanism that holds an actuator with a high shock resistance two or more magnetic members are arranged in a latch component, which generates a weaker attraction force but a more easy rotation of the latch component. The structure concentrates a magnetic force in order to rotate the latch component effectively. The effect of the magnetic force in a direction perpendicular to the direction of rotation of the magnetic members becomes smaller and a friction force at the rotation center of the latch is reduced.
摘要翻译：在保持具有高抗冲击性的致动器的闩锁机构中，两个或多个磁性构件布置在闩锁部件中，其产生较弱的吸引力，但是更容易地旋转闩锁部件。该结构集中磁力以有效地旋转闩锁部件。磁力在与磁性构件的旋转方向垂直的方向上的作用变小，并且在闩锁的旋转中心处的摩擦力降低。

10. 发明授权

US06665139B2 Magnetic-disc unit with gap between disc and shroud 有权
标题翻译：磁盘单元与盘与护罩之间具有间隙
公开(公告)号：US06665139B2
公开(公告)日：2003-12-16
申请号：US10022260
申请日：2001-12-20
申请人： Mikio Tokuyama , Hayato Shimizu , Satomitsu Imai , Shozo Saegusa , Masahiko Sega , Toshihisa Okazaki , Yuzo Yamaguchi , Masao Iwakura , Shigeo Nakamura , Kazuo Sakai , Shigenori Togashi , Masayuki Kaiho , Toshiaki Kobari
发明人： Mikio Tokuyama , Hayato Shimizu , Satomitsu Imai , Shozo Saegusa , Masahiko Sega , Toshihisa Okazaki , Yuzo Yamaguchi , Masao Iwakura , Shigeo Nakamura , Kazuo Sakai , Shigenori Togashi , Masayuki Kaiho , Toshiaki Kobari
IPC分类号： G11B3314
CPC分类号： G11B33/08 , G11B5/6005 , G11B25/043 , G11B33/1446
摘要： In a magnetic disc apparatus including a plurality of magnetic discs mounted on a spindle, arms supporting magnetic heads, a rotary actuator for the arms, and a housing having an arcuate-shaped shroud, the improvement wherein gaps between the shroud and the sides of outer peripheries of the magnetic discs are larger than 0.1 mm and less than 0.6 mm. An open space is located, downstream of the arms with respect to the air flow on surfaces of the magnetic discs, the open space being devoid of the shroud. An opening is provided in the shroud, upstream of the arms with respect to the air flow and having a greater width than a width of the gaps defined between the magnetic discs and the shroud, and a bypass channel is provided which communicates between the opening and open space.
摘要翻译：在包括安装在主轴上的多个磁盘，支撑磁头的臂，用于臂的旋转致动器和具有弧形罩的壳体的磁盘装置中，改进之处在于罩与外侧之间的间隙磁盘的周边大于0.1mm且小于0.6mm。相对于磁盘表面上的气流，位于臂的下游的开放空间，开放空间没有护罩。在护罩中，相对于空气流在臂的上游设置开口，并且具有比限定在磁盘和护罩之间的间隙的宽度更大的宽度，并且提供旁通通道，其在开口和开放空间。

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