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1. 发明授权

US06233120B1 Magnetic disk device 失效
标题翻译：磁盘装置
公开(公告)号：US06233120B1
公开(公告)日：2001-05-15
申请号：US09443303
申请日：1999-11-19
申请人： Kazuyoshi Hanada , Toshihisa Okazaki , Satomitsu Iami , Masayuki Honchi , Hideyuki Takagi
发明人： Kazuyoshi Hanada , Toshihisa Okazaki , Satomitsu Iami , Masayuki Honchi , Hideyuki Takagi
IPC分类号： G11B549
CPC分类号： G11B5/4915
摘要： A magnetic disk device having a base and a cover; a magnetic disk recording information on a recording surface thereof facing the base or the cover; a spindle motor fixed to the base and rotating the magnetic disk; a head for recording and reproducing the information to and from the recording surface of the magnetic disk; a slider having the head mounted thereto; a first suspension supporting the slider; a head arm provided between the magnetic disk and the base or the cover and supporting the first suspension on the side of the recording surface; and a carriage fixed to the base and swinging the head arm, moving the head in a radial direction of the magnetic disk and positioning the head. The magnetic disk device also has a second suspension provided on the base side or the cover side of the head arm and having a natural frequency substantially equal to a natural frequency of the first suspension.
摘要翻译：一种具有底座和盖子的磁盘装置; 在其面向基座或盖的记录表面上的磁盘记录信息; 主轴电动机固定到基座并旋转磁盘; 用于向磁盘的记录表面记录和再现信息的磁头; 具有安装在其上的头部的滑块; 支撑滑块的第一悬架; 磁头臂设置在磁盘与基座或盖之间，并将第一悬架支撑在记录表面的一侧; 以及固定到基座并摆动头臂的托架，使磁头沿着磁盘的径向方向移动并定位磁头。磁盘装置还具有设置在头臂的底侧或盖侧上的第二悬架，其固有频率基本上等于第一悬架的固有频率。

2. 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。

3. 发明授权

US5953178A Magnetic disk apparatus 失效
标题翻译：磁盘装置
公开(公告)号：US5953178A
公开(公告)日：1999-09-14
申请号：US977942
申请日：1997-11-24
申请人： Akio Takatsuka , Hideaki Amano , Katsuhiro Tsuneta , Toshiaki Tsuyoshi , Tetsuji Kameoka , Haruhiko Hosokawa , Takashi Yamaguchi , Kazuyoshi Hanada , Satoru Yamaura , Toshio Matsushita , Toshihisa Okazaki
发明人： Akio Takatsuka , Hideaki Amano , Katsuhiro Tsuneta , Toshiaki Tsuyoshi , Tetsuji Kameoka , Haruhiko Hosokawa , Takashi Yamaguchi , Kazuyoshi Hanada , Satoru Yamaura , Toshio Matsushita , Toshihisa Okazaki
IPC分类号： G11B5/012 , G11B5/39 , G11B5/48 , G11B5/55 , G11B5/596 , G11B19/02 , G11B27/30
CPC分类号： G11B5/5526 , G11B19/02 , G11B27/3027 , G11B5/012 , G11B5/4886 , G11B5/59655 , G11B5/59683 , G11B2220/20 , G11B5/39
摘要： A magnetic disk apparatus includes a dual head equipped with an MR head for reading data and an inductive head for writing the data. One ID portion and one servo pattern are disposed in one sector and an unequal track pitch is formed. The ID portion is formed at the center of a radius of two positions to which the MR head is positioned at the time of reading the data and writing the data, respectively.
摘要翻译：磁盘装置包括配有用于读取数据的MR磁头和用于写入数据的感应头的双头。一个ID部分和一个伺服图案设置在一个扇区中，并且形成不等轨道间距。在读取数据并写入数据时，ID部分形成在MR头位于两个位置的半径的中心处。

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

US07161754B2 Servo pattern writing method and magnetic disk drive for carrying out the same 失效
标题翻译：伺服模式写入方式和执行磁盘驱动器的磁盘驱动器
公开(公告)号：US07161754B2
公开(公告)日：2007-01-09
申请号：US10832819
申请日：2004-04-26
申请人： Shigeyuki Hanazawa , Toshihisa Okazaki , Tsutomu Naitou , Atsushi Hiruta
发明人： Shigeyuki Hanazawa , Toshihisa Okazaki , Tsutomu Naitou , Atsushi Hiruta
IPC分类号： G11B5/09
CPC分类号： G11B5/59633
摘要： A servo pattern writing method of writing a servo pattern for the positioning control of a magnetic head on a magnetic disk comprises changing the rotating speed of the magnetic disk with the magnetic head positioned at one or more proper radial positions with respect to the magnetic disk. The rotating speed of the magnetic disk is changed on the basis of the magnitude of a synchronous vibration synchronous with the rotation of the magnetic disk. Writing current for writing a servo pattern is set according to the change of the rotating speed of the magnetic disk. The STW rotating speed is changed according to the change of the radial position of the magnetic head to reduce the intensity of the vibration that is generated during a servo pattern writing operation to a value meeting a positioning level. The servo track writing operation can be achieved at a low cost.
摘要翻译：将用于磁头的定位控制的伺服模式写入磁盘的伺服模式写入方法包括：使用位于相对于磁盘的一个或多个适当径向位置的磁头来改变磁盘的旋转速度。基于与磁盘旋转同步的同步振动的大小来改变磁盘的转速。根据磁盘转速的变化设定写入伺服模式的写入电流。 STW转速根据磁头的径向位置的变化而变化，将伺服模式写入动作时产生的振动强度降低到满足定位水平的值。可以以低成本实现伺服磁道写入操作。

6. 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。

7. 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。

8. 发明授权

US06353517B1 Magnetic disk drive 失效
标题翻译：磁盘驱动器
公开(公告)号：US06353517B1
公开(公告)日：2002-03-05
申请号：US09422242
申请日：1999-10-21
申请人： Nobuyuki Okunaga , Toshihisa Okazaki
发明人： Nobuyuki Okunaga , Toshihisa Okazaki
IPC分类号： G11B1702
CPC分类号： G11B25/043 , G11B5/5521
摘要： In a magnetic disk drive having a magnetic circuit which provides a driving force to a carriage 7 holding a magnetic head so as to position the magnetic head, the magnetic circuit includes a driving coil 9 attached fixedly to the carriage and a magnet-yoke assembly 8. The magnet-yoke assembly 8 is supported in a housing at one point thereof so as to be able to rotate in the direction parallel to the surface of the magnetic disk. The assembly is rotatably supported by means of a bearing 14 and the bearing is provided with an initial displacement so as to increase the axial bearing rigidity thereof. A base 10 is provided with a slip guide 16 which allows the magnet-yoke assembly 8 to rotate with low friction and serves to provide the initial displacement to the bearing. A visco-elastic member 17 is provided for restricting the rotation of the assembly.
摘要翻译：在具有磁路的磁盘驱动器中，该磁路向保持磁头的托架7提供驱动力以便定位磁头，磁路包括固定地安装在托架上的驱动线圈9和磁轭组件8 磁轭组件8在其一个位置被支撑在壳体中，以便能够在平行于磁盘表面的方向上旋转。组件通过轴承14可旋转地支撑，并且轴承设置有初始位移，以增加其轴向刚度。基座10设置有滑动引导件16，其允许磁轭组件8以低摩擦力旋转并用于向轴承提供初始位移。提供粘弹性构件17用于限制组件的旋转。

9. 发明授权

US5677813A Rotary information recording and reproduction apparatus 失效
标题翻译：旋转信息记录和再现设备
公开(公告)号：US5677813A
公开(公告)日：1997-10-14
申请号：US764190
申请日：1996-12-13
申请人： Takeshi Yoshida , Kenji Mori , Toshihisa Okazaki
发明人： Takeshi Yoshida , Kenji Mori , Toshihisa Okazaki
IPC分类号： G11B33/08 , G11B33/14 , G11B5/55
CPC分类号： G11B33/08
摘要： An object of the present invention is to restrain the rigid body rotational vibration of a magnetic disc apparatus caused by the driving reaction force of a head in order to position the head quickly and precisely and to reduce the sizes of the magnetic disc apparatus. According to this invention, a dynamic damper having a natural frequency equal to the rigid body rotational frequency of the magnetic disc apparatus is provided in at least one of the four corners inside or outside a housing of the magnetic disc apparatus. The dynamic damper comprises a weight member and bar-like members acting like springs, and has an angled shape so as to meet the form factor standard sizes for magnetic disc apparatuses.
摘要翻译：本发明的目的是为了限制由磁头的驱动反作用力引起的磁盘装置的刚体旋转振动，以便快速准确地定位磁头并减小磁盘装置的尺寸。根据本发明，在磁盘装置的外壳的内部或外部的四个角中的至少一个中设置有具有等于磁盘装置的刚体旋转频率的固有频率的动态阻尼器。动力阻尼器包括配重构件和像弹簧一样的棒状构件，并且具有成角度的形状，以便满足磁盘装置的形状因子标准尺寸。

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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