公开(公告)号：US20090080117A1

公开(公告)日：2009-03-26

申请号：US12292428

申请日：2008-11-19

申请人： Toshihiko Shimizu ,  Hiromitsu Masuda ,  Irizo Naniwa ,  Mikio Tokuyama ,  Shigeo Nakamura ,  Kousaku Wakatsuki ,  Haruhide Takahashi ,  Masaki Odai

发明人： Toshihiko Shimizu ,  Hiromitsu Masuda ,  Irizo Naniwa ,  Mikio Tokuyama ,  Shigeo Nakamura ,  Kousaku Wakatsuki ,  Haruhide Takahashi ,  Masaki Odai

IPC分类号： G11B5/56

CPC分类号： G11B5/4833 ,  G11B5/4813 ,  G11B5/486 ,  G11B5/4873 ,  G11B5/5552 ,  G11B5/5582

摘要： A head support mechanism includes a head to read/write information, and an actuator for moving the head. Flanges are provided on opposite sides of a load beam of the head support mechanism, and at least one recessed portion is provided on the load beam. A thickness of the load beam at the at least one recessed portion is smaller than a thickness at other portions of the load beam at least one of oscillation damping material and an IC circuit is arranged in the at least one recessed portion.

摘要翻译： 头部支撑机构包括用于读取/写入信息的头部和用于移动头部的致动器。 凸缘设置在头部支撑机构的负载梁的相对侧上，并且至少一个凹部设置在负载梁上。 在至少一个凹部的负载梁的厚度小于负载梁的其他部分的厚度，至少一个振荡阻尼材料和IC电路布置在至少一个凹部中。

公开(公告)号：USD584192S1

公开(公告)日：2009-01-06

申请号：US29305771

申请日：2008-03-27

申请人： Masaru Hasegawa ,  Toshihiko Shimizu ,  Atsushi Murakawa

设计人： Masaru Hasegawa ,  Toshihiko Shimizu ,  Atsushi Murakawa

公开(公告)号：US07468861B2

公开(公告)日：2008-12-23

申请号：US11223457

申请日：2005-09-09

申请人： Takehiko Eguchi ,  Toshihiko Shimizu ,  Toshiya Shiramatsu ,  Mikio Tokuyama

发明人： Takehiko Eguchi ,  Toshihiko Shimizu ,  Toshiya Shiramatsu ,  Mikio Tokuyama

IPC分类号： G11B33/14

CPC分类号： G11B5/10

摘要： In a magnetic disk apparatus, a function of shielding a magnetic head is improved while maintaining the form factor with an inexpensive structure. In one embodiment, a magnetic disk apparatus has a magnetic disk, a magnetic head that records or plays back information, a magnetic head support mechanism supporting the magnetic head, a positioning mechanism that moves the magnetic head in a radial direction of the magnetic disk to place the head in position, an enclosure made of a nonmagnetic material, and a shield member made of a magnetic material. The magnetic disk, magnetic head, magnetic head support mechanism, positioning mechanism, and shield member are housed in the enclosure. The shield member has an upper shield located above the magnetic head and extending over the range of movement of the magnetic head, a lower shield located on the opposite side of the surface where the magnetic head exists and extending over the range of movement of the magnetic head, and a connecting portion connecting an outer side end portion of the upper shield and an outer side end portion of the lower shield near the outer fringes of the magnetic disk.

摘要翻译： 在磁盘装置中，在保持具有便宜结构的形状因素的同时提高了屏蔽磁头的功能。 在一个实施例中，磁盘装置具有磁盘，记录或重放信息的磁头，支撑磁头的磁头支撑机构，将磁头沿磁盘的径向移动的定位机构， 将头部放置在适当位置，由非磁性材料制成的外壳以及由磁性材料制成的屏蔽部件。 磁盘，磁头，磁头支撑机构，定位机构和屏蔽构件容纳在外壳中。 屏蔽构件具有位于磁头上方并在磁头的移动范围内延伸的上屏蔽件，位于磁头存在并且在磁头的移动范围内的相对侧上的下屏蔽件 头部，以及连接部分，该连接部分将上部护罩的外侧端部与下部护罩的外侧端部连接在磁盘的外侧边缘附近。

公开(公告)号：US07460341B2

公开(公告)日：2008-12-02

申请号：US11197993

申请日：2005-08-05

申请人： Toshihiko Shimizu ,  Haruhide Takahashi ,  Kousaku Wakatsuki ,  Keiko Watanabe

发明人： Toshihiko Shimizu ,  Haruhide Takahashi ,  Kousaku Wakatsuki ,  Keiko Watanabe

IPC分类号： G11B5/55 ,  G11B21/08

CPC分类号： G11B5/4833

摘要： Embodiments of the invention suppress head jump at the time of application of an impact to provide for an excellent impact resistance performance in a magnetic disk device. In one embodiment, an actuator of a magnetic disk device comprises a suspension mounting the slider on a tip end side thereof to give a predetermined load to the slider, and an arm that holds the suspension, the arm being supported to be able to turn. The arm comprises two arm portions juxtaposed in a direction perpendicular to a surface of the disk, and a spacing between the two arm portions on a side of supported portions thereof in the direction perpendicular to the surface of the disk is larger than that on a side of the slider in the direction perpendicular to the surface of the disk.

摘要翻译： 本发明的实施例在施加冲击时抑制头跳，从而在磁盘装置中提供优异的抗冲击性能。 在一个实施例中，磁盘装置的致动器包括将滑块安装在其顶端侧的悬架，以向滑块提供预定的载荷，以及支撑悬架的臂，所述臂被支撑以能够转动。 臂包括沿垂直于盘的表面的方向并置的两个臂部，并且在垂直于盘表面的方向上的支撑部分的一侧的两个臂部之间的间隔大于侧面 的滑块在垂直于盘表面的方向上。

公开(公告)号：US07408738B2

公开(公告)日：2008-08-05

申请号：US11104977

申请日：2005-04-12

申请人： Yasutaka Nishida ,  Ikuya Tagawa ,  Toshihiko Shimizu

发明人： Yasutaka Nishida ,  Ikuya Tagawa ,  Toshihiko Shimizu

IPC分类号： G11B33/14

CPC分类号： G11B23/0042

摘要： Embodiments of the invention efficiently improve the stray field robustness without changing the size or weight of the drive on a large scale. Because a stray field concentrates on a magnetic field element, a symptom in which already recorded data is erased is prevented. According to one embodiment, in a magnetic recording system that uses a perpendicular recording medium having a soft magnetic under layer, a soft magnetic shield is provided on an upper part and a side of a slider on which a magnetic head is mounted, and a distance C between the shield and the medium is made smaller than a distance A or B between the shield and the slider.

摘要翻译： 本发明的实施例在不改变驱动器的尺寸或重量的情况下有效地提高了杂散场稳健性。 由于杂散场集中在磁场元件上，因此防止已经记录的数据被擦除的症状。 根据一个实施例，在使用具有软磁下层的垂直记录介质的磁记录系统中，在安装有磁头的滑块的上部和侧面上设置有软磁屏蔽，并且距离 屏蔽和介质之间的距离C小于屏蔽和滑块之间的距离A或B.

公开(公告)号：US20070211581A1

公开(公告)日：2007-09-13

申请号：US11641867

申请日：2006-12-20

申请人： Takashi Yoshida ,  Toshihiko Shimizu ,  Kazushi Yoshida ,  Taichirou Yamashita

发明人： Takashi Yoshida ,  Toshihiko Shimizu ,  Kazushi Yoshida ,  Taichirou Yamashita

IPC分类号： G11B7/085 ,  G11B21/08

CPC分类号： G11B17/26 ,  G11B17/225

摘要： An object of the invention is to provide a cartridge storing a plurality of sheet-shaped optical discs in a laminated manner in a state of being accommodated in trays, and a recording and reproducing apparatus of the optical disc. A cartridge stores a lot of trays in a laminated manner. The tray is formed by adhering a flat plate and a flat plate respectively having a smaller hole and a larger hole than a sheet-shaped optical disc, adhering a cover which can be opened and closed to the flat plate, and putting the optical disc in the large hole so as to be covered by the cover. The cartridge is moved up and down by a moving table, and the tray is taken out by being hooked by a hook mechanism. At this time, the cover is peeled out by a peeling claw. The optical disc is fixed to a spindle motor to which a glass disc is attached. The optical disc is rotated while being sucked to the glass disc by a fluid force, and is recorded and reproduced by a recording and reproducing portion. The recording and reproducing apparatus is structured such that the optical disc is turned back to the tray and is compressed to the cartridge by the hook mechanism while being covered by the cover.

摘要翻译： 本发明的目的是提供一种在容纳在托盘中的状态下以层叠方式存储多个片状光盘的盒，以及光盘的记录和再现装置。 墨盒以层叠的方式存储大量托盘。 托盘通过粘附平板和平板，其分别具有比片状光盘更小的孔和更大的孔，将可打开和关闭的盖子粘附到平板上，并将光盘放入 大孔被盖子覆盖。 墨盒通过移动的桌子上下移动，托盘通过钩挂机构钩住而被取出。 此时，通过剥离爪将盖剥离。 光盘固定在安装有玻璃盘的主轴电机上。 光盘在被流体力吸入玻璃盘的同时旋转，并被记录和再现部分记录和再现。 记录和再现装置被构造成使得光盘被转回到托盘，并且在被盖子覆盖的同时被钩机构压缩到盒。

公开(公告)号：US20060158786A1

公开(公告)日：2006-07-20

申请号：US11375071

申请日：2006-03-15

申请人： Toshihiko Shimizu ,  Tetsuya Hamaguchi ,  Toshihiro Arisaka ,  Hiromitsu Masuda ,  Gentaro Nakamura ,  Takenori Atsumi

发明人： Toshihiko Shimizu ,  Tetsuya Hamaguchi ,  Toshihiro Arisaka ,  Hiromitsu Masuda ,  Gentaro Nakamura ,  Takenori Atsumi

IPC分类号： G11B5/55

CPC分类号： G11B5/4833 ,  G11B5/4813 ,  G11B5/5526 ,  G11B5/5582

摘要： A carriage for a magnetic disk apparatus includes a slider on which a magnetic head for reading/writing information from/to a disk is mounted, a suspension for carrying the slider and for applying a predetermined load to the slider, and a carriage arm to which the suspension is attached. The carriage arm includes a suspension fixing portion, first and second arms arranged substantially in parallel with a disk surface, and a restricting member having a surface opposite to the first and second arms. The restricting member and the first arm, and the restricting member and the second arm are coupled via a viscoelastic body.

摘要翻译： 一种用于磁盘装置的滑架包括一个滑块，用于从盘上读取/写入信息的磁头安装在其上，用于承载滑块并用于向滑块施加预定载荷的悬架，以及滑架 附上悬挂物。 托架臂包括悬挂固定部分，基本上平行于盘表面布置的第一臂和第二臂，以及具有与第一臂和第二臂相对的表面的限制构件。 限制构件和第一臂以及限制构件和第二臂经由粘弹性体联接。

公开(公告)号：US07049892B2

公开(公告)日：2006-05-23

申请号：US10849852

申请日：2004-05-21

申请人： Yoshikuni Matsunaga ,  Toshihiko Shimizu ,  Tomio Furuya ,  Nobuhiro Matsudaira ,  Koichi Matsushita

发明人： Yoshikuni Matsunaga ,  Toshihiko Shimizu ,  Tomio Furuya ,  Nobuhiro Matsudaira ,  Koichi Matsushita

IPC分类号： H03G3/30

CPC分类号： H03F1/0261 ,  H03F2200/465 ,  H03G1/0017 ,  H03G3/3042 ,  H03G3/3047

摘要： A multistage high frequency power amplifier circuit device has a plurality of semiconductor amplification elements connected in a cascade. The circuit device is provided with a bias control circuit used to control the bias voltage or bias current of the output semiconductor amplification element in each stage so as to reduce the variation of the output power with respect to the power control signal voltage in an area around the threshold voltage of the semiconductor amplification elements. This realizes a high frequency power amplifier circuit device provided with excellent controllability of the output power and high efficiency at the time of low power output realized with use of such a control voltage as a power control signal.

公开(公告)号：USD516474S1

公开(公告)日：2006-03-07

申请号：US29221242

申请日：2005-01-14

申请人： Mitsuhiro Honda ,  Toshihiko Shimizu

设计人： Mitsuhiro Honda ,  Toshihiko Shimizu

公开(公告)号：US06982852B2

公开(公告)日：2006-01-03

申请号：US10372833

申请日：2003-02-26

申请人： Shin Nagahiro ,  Masahiko Sega ,  Toshihiro Arisaka ,  Toshihiko Shimizu ,  Hiromitsu Masuda ,  Tetsuya Hamaguchi ,  Gentaro Nakamura ,  Takenori Atumi

发明人： Shin Nagahiro ,  Masahiko Sega ,  Toshihiro Arisaka ,  Toshihiko Shimizu ,  Hiromitsu Masuda ,  Tetsuya Hamaguchi ,  Gentaro Nakamura ,  Takenori Atumi

IPC分类号： G11B5/55

CPC分类号： G11B5/4833 ,  G11B5/5582

摘要： A magnetic disk drive having a high recording density and enabling high speed transfer is achieved by reducing vibration of a carriage arm assembly to reduce a positioning error. The disk drive is configured so that a carriage arm is configured by two arm portions, the arm portions being coupled to each other by a restraint member through a viscoelastic material, the restraint member being supported on a carriage body or an area of the carriage arm in the vicinity of the body by means of adhesion or a viscoelastic material. By providing a high damping effect against various vibration modes in which in-plane bending and out-plane bending of the carriage arm are generated, vibration of the carriage arm assembly is suppressed, so that the positioning error is reduced, thereby the magnetic disk drive having a high recording density can be achieved.