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1. 发明授权

US5995327A Magnetic disk device for restraining vibration of head mounting part 失效
标题翻译：用于抑制头部安装部件的振动的磁盘装置
公开(公告)号：US5995327A
公开(公告)日：1999-11-30
申请号：US979779
申请日：1997-11-26
申请人： Kazuyoshi Hanada , Toshihisa Okazaki , Satomitsu Imai , Masayuki Honchi , Hideyuki Takagi
发明人： Kazuyoshi Hanada , Toshihisa Okazaki , Satomitsu Imai , Masayuki Honchi , Hideyuki Takagi
IPC分类号： G11B21/21 , G11B5/49 , G11B21/02
CPC分类号： G11B5/4915
摘要： A magnetic disk device wherein a member having and suspension thereof a natural frequency similar to that of a head is disposed on an opposite surface of a head arm having one head mounted thereto via a suspension. The outermost shape (profile when the member is projected in a direction perpendicular to the surface of the magnetic disk) of the member having the natural frequency equal to that of the head and suspension thereof is similar to that of the head and the suspension or does not swell out from the profile of the head and the suspension. The member having the natural frequency similar to that of the head is provided to the head arm by the same device as that of the head.
摘要翻译：一种磁盘装置，其中具有其与其头部固有频率相似的固有频率的部件的部件设置在具有通过悬架安装在其上的一个头部的头臂的相对表面上。具有与头部和悬架的固有频率相等的固有频率的部件的最外形（轮廓在垂直于磁盘表面的方向上突出的轮廓）与头部和悬架的相似，或者是不会从头部和悬架的轮廓中膨胀出来。具有与头部的固有频率相似的固定频率的部件通过与头部相同的装置提供给头臂。

2. 发明授权

US06504683B1 Magnetic disk apparatus in which contact between a disk and a carriage arm by an external impact is prevented 有权
标题翻译：通过外部冲击防止盘与托架臂之间的接触的磁盘装置
公开(公告)号：US06504683B1
公开(公告)日：2003-01-07
申请号：US09589746
申请日：2000-06-09
申请人： Satomitsu Imai , Toshihisa Okazaki , Mikio Tokuyama , Shigeo Nakamura
发明人： Satomitsu Imai , Toshihisa Okazaki , Mikio Tokuyama , Shigeo Nakamura
IPC分类号： G11B2110
CPC分类号： G11B5/5582
摘要： A magnetic disk apparatus of the present invention comprises a head slider with a magnetic head mounted thereon, a disk on which information is recorded/regenerated by the magnetic head, a spindle motor, integrally structured with the disk, for rotating the disk, a suspension for elastically supporting the magnetic head slider, a carriage arm for supporting the suspension and positioning the magnetic head, and a base plate for attaching the spindle motor and the carriage arm. An out-of-plane primary natural frequency of a base plate part to which the spindle is to be attached is set to be substantially the same as that of a base plate part to which the carriage arm is to be attached. An out-of-plane primary natural frequency of the carriage arm is detached from that of the base plate part to which the carriage arm is to be attached to such an extent that no resonance occurs. An out-of-plane primary natural frequency of the disk is detached from that of the base plate part to which the disk is to be attached to such an extent that no resonance occurs.
摘要翻译：本发明的磁盘装置包括安装有磁头的磁头滑动器，磁头记录/再生磁盘的磁盘，与磁盘一体构成的用于转动磁盘的主轴电机，悬架用于弹性地支撑磁头滑块，用于支撑悬架和定位磁头的滑架臂，以及用于安装主轴电机和滑架臂的底板。将要安装主轴的基板部分的平面外初始固有频率设定为与安装滑架臂的基板部分大致相同。滑架臂的平面外主要固有频率与托架臂所附接的基板部分的平面外固有频率分离，使得不发生共振。盘的平面外主要固有频率与要附接到盘的基板部分的平面外固有频率分离，使得不发生共振。

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. 发明授权

US07336440B2 Magnetic disc unit with gap between magnetic disc and shroud 失效
标题翻译：磁盘单元具有磁盘和护罩之间的间隙
公开(公告)号：US07336440B2
公开(公告)日：2008-02-26
申请号：US11387903
申请日：2006-03-24
申请人： Mikio Tokuyama , Hayato Shimizu , Satomitsu Imai , Shozo Saegusa , Masahiko Sega , Toshihisa Okazaki , Yuzo Yamaguchi
发明人： Mikio Tokuyama , Hayato Shimizu , Satomitsu Imai , Shozo Saegusa , Masahiko Sega , Toshihisa Okazaki , Yuzo Yamaguchi
IPC分类号： G11B33/14
CPC分类号： G11B33/148 , G11B25/043 , G11B33/08
摘要： A magnetic disc unit includes a rotating disc type magnetic disc having an outer periphery, and a carriage arm linked to a head support mechanism for a recording/reproducing head. A base has an outer periphery and mounts the rotating disc type magnetic disc and the carriage arm, and has a side wall with an inner wall surface having an opening for inserting the carriage arm. The inner wall surface of the side wall defines a shroud surrounding the outer periphery of the magnetic disc, except at the opening in the side wall where the shroud is projected inwardly so as to decrease an opening angle of the opening in the side wall. A gap between the outer periphery of the magnetic disc and the shroud is set in a range not less than 0.1 mm but not greater than 0.6 mm.
摘要翻译：磁盘单元包括具有外周的旋转盘型磁盘和连接到用于记录/再现头的磁头支撑机构的滑架臂。基座具有外周边并且安装旋转盘型磁盘和托架臂，并且具有侧壁，内壁表面具有用于插入托架臂的开口。侧壁的内壁表面限定围绕磁盘的外周的护罩，除了侧壁中的开口处，护罩向内突出，以减小侧壁中开口的开口角度。磁盘的外周与护罩之间的间隙设定在0.1mm以上且0.6mm以下的范围内。

5. 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。

6. 发明申请

US20080106819A1 MAGNETIC DISC UNIT WITH GAP BETWEEN MAGNETIC DISC AND SHROUD 失效
标题翻译：磁性盘组件与磁盘和SHROUD之间的间隙
公开(公告)号：US20080106819A1
公开(公告)日：2008-05-08
申请号：US11962340
申请日：2007-12-21
申请人： Mikio Tokuyama , Hayato Shimizu , Satomitsu Imai , Shozo Saegusa , Masahiko Sega , Toshihisa Okazaki , Yuzo Yamaguchi
发明人： Mikio Tokuyama , Hayato Shimizu , Satomitsu Imai , Shozo Saegusa , Masahiko Sega , Toshihisa Okazaki , Yuzo Yamaguchi
IPC分类号： G11B33/14
CPC分类号： G11B33/148 , G11B25/043 , G11B33/08
摘要： A magnetic disc unit includes a rotating disc type magnetic disc, a head for recording and reproducing data to and from the magnetic disc, and a head support mechanism for supporting the head. The magnetic disc unit includes a shroud surrounding an outer periphery of the magnetic disc other than at least at an inserting part of a carriage arm which is linked to the magnetic head support mechanism. A gap between an end face of the outer periphery of the magnetic disc and the shroud is set in a range not less than 0.1 mm but not greater than 0.4 mm.
摘要翻译：磁盘单元包括旋转盘型磁盘，用于从磁盘记录和再现数据的磁头，以及用于支撑磁头的磁头支撑机构。磁盘单元包括除了至少在与磁头支撑机构连接的滑架臂的插入部分之外围绕磁盘外周的护罩。磁盘外周端面与护罩之间的间隙设定在0.1mm以上0.4mm以下的范围内。

7. 发明授权

US07072141B2 Magnetic disc unit with range of gap between disc and shroud 失效
标题翻译：磁盘单元与盘和护罩之间的间隙范围
公开(公告)号：US07072141B2
公开(公告)日：2006-07-04
申请号：US10680235
申请日：2003-10-08
申请人： Mikio Tokuyama , Hayato Shimizu , Satomitsu Imai , Shozo Saegusa , Masahiko Sega , Toshihisa Okazaki , Yuzo Yamaguchi
发明人： Mikio Tokuyama , Hayato Shimizu , Satomitsu Imai , Shozo Saegusa , Masahiko Sega , Toshihisa Okazaki , Yuzo Yamaguchi
IPC分类号： G11B33/14
CPC分类号： G11B33/148 , G11B25/043 , G11B33/08
摘要： A magnetic disc unit having a rotating disc type magnetic disc, a head for recording and reproducing data to and from the magnetic disc, and a shroud surrounding an end surface of an outer periphery of the magnetic disc, except a part where a carriage arm is inserted, wherein a gap between the outer peripheral end surface of the magnetic disc and the shroud is set in a range which is greater than 0.1 mm but not greater than 0.6 mm.
摘要翻译：具有旋转盘型磁盘的磁盘单元，用于从磁盘记录和再现数据的磁头以及围绕磁盘的外周的端面的护罩，除了托架臂为止的部分插入，其中，所述磁盘的外周端面与所述护罩之间的间隙被设定在大于0.1mm但不大于0.6mm的范围内。

8. 发明申请

US20050219741A1 Magnetic disk apparatus 失效
标题翻译：磁盘装置
公开(公告)号：US20050219741A1
公开(公告)日：2005-10-06
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： G11B5/60 , G11B25/04 , 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。

9. 发明授权

US06898049B2 Magnetic disk apparatus with air flow bypass channel 失效
标题翻译：具有气流旁路通道的磁盘设备
公开(公告)号：US06898049B2
公开(公告)日：2005-05-24
申请号：US10409450
申请日：2003-04-09
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： G11B5/60 , G11B25/04 , G11B33/14 , G11B17/02
CPC分类号： G11B25/043 , G11B5/6005 , G11B33/142 , G11B33/1446 , G11B33/148
摘要： A magnetic disk apparatus includes magnetic disks stacked on a rotating shaft, arms supporting magnetic heads, a rotary actuator for moving the arms, and 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 define a gap between the shroud and the portion of the side surfaces of the magnetic disks. The arcuate-shaped shroud has portions delimiting an open space adjacent to another portion of the side surfaces of the magnetic disks which is located on a downstream side of the arms relative to an air flow which moves on surfaces of the magnetic disks. A bypass channel provides air flow to the disks in a region of the open space at a reduced pressure on the downstream side of the arms with respect to pressure at an upstream side of the arms.
摘要翻译：磁盘装置包括堆叠在旋转轴上的磁盘，支撑磁头的臂，用于移动臂的旋转致动器和形成弓形罩的至少一部分的壳体，其基本上围绕磁盘，以便限定护罩与磁盘的侧表面部分之间的间隙。弧形护罩具有限定与磁盘的侧表面的另一部分相邻的开放空间的部分，其位于相对于在磁盘表面上移动的气流的臂的下游侧。旁路通道相对于臂的上游侧的压力在臂的下游侧以减压的方式在开放空间的区域中提供气流。

10. 发明授权

US07643245B2 Magnetic disc unit with gap between magnetic disc and shroud 失效
标题翻译：磁盘单元具有磁盘和护罩之间的间隙
公开(公告)号：US07643245B2
公开(公告)日：2010-01-05
申请号：US11962340
申请日：2007-12-21
申请人： Mikio Tokuyama , Hayato Shimizu , Satomitsu Imai , Shozo Saegusa , Masahiko Sega , Toshihisa Okazaki , Yuzo Yamaguchi
发明人： Mikio Tokuyama , Hayato Shimizu , Satomitsu Imai , Shozo Saegusa , Masahiko Sega , Toshihisa Okazaki , Yuzo Yamaguchi
IPC分类号： G11B33/14
CPC分类号： G11B33/148 , G11B25/043 , G11B33/08
摘要： A magnetic disc unit includes a rotating disc type magnetic disc, a head for recording and reproducing data to and from the magnetic disc, and a head support mechanism for supporting the head. The magnetic disc unit includes a shroud surrounding an outer periphery of the magnetic disc other than at least at an inserting part of a carriage arm which is linked to the magnetic head support mechanism. A gap between an end face of the outer periphery of the magnetic disc and the shroud is set in a range not less than 0.1 mm but not greater than 0.4 mm.
摘要翻译：磁盘单元包括旋转盘型磁盘，用于从磁盘记录和再现数据的磁头，以及用于支撑磁头的磁头支撑机构。磁盘单元包括除了至少在与磁头支撑机构连接的滑架臂的插入部分之外围绕磁盘外周的护罩。磁盘外周端面与护罩之间的间隙设定在0.1mm以上0.4mm以下的范围内。

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