公开(公告)号：JP2000076756A

公开(公告)日：2000-03-14

申请号：JP24322598

申请日：1998-08-28

Applicant: Sony Corp ,  ソニー株式会社

Inventor： SANADA YOTARO ,  MAMIYA TOSHIO ,  YAMADA TAKASHI ,  YAMAMOTO KAZUYUKI

IPC: G11B17/028

Abstract: PROBLEM TO BE SOLVED: To properly record/reproduce an information signal in a disk recording medium by increasing a holding force for the disk recording medium.
SOLUTION: This device is provided with a casing 2, a spindle motor 7 having a disk holding part 11d for holding a disk recording medium 22 and movable in a direction away from the disk recording medium inserted into the casing with respect to the same, a disk clamping mechanism 3 disposed in a side opposite the spindle motor 7 sandwiching the disk recording medium inserted into the casing, and a moving mechanism 17 for moving the spindle motor 7 in the direction away from the disk recording medium 22. The disk clamping mechanism 3 includes a supporting part 4 fixed in the casing, and a disk clamping part 6 rotatably supported by the supporting part 4 to hold the disk recording medium 22 with the disk holding part 11d of the spindle motor 7. The rotational centers of the disk holding part of the disk clamping mechanism and the spindle motor are matched with each other in axial directions.
COPYRIGHT: (C)2000,JPO

Abstract translation: 要解决的问题：通过增加盘记录介质的保持力来正确地将信息信号记录/再现在盘记录介质中。 解决方案：该装置设置有壳体2，主轴电机7，其具有用于保持盘记录介质22的盘保持部11d并且能够相对于插入到壳体中的盘记录介质远离方向移动; 盘夹持机构3设置在与夹在插入壳体中的盘记录介质相对的主轴电动机7的一侧，以及用于使主轴电动机7沿远离盘记录介质22的方向移动的移动机构17.盘夹紧机构3 包括固定在壳体中的支撑部分4和由支撑部分4可旋转地支撑以将盘记录介质22保持在主轴电动机7的盘保持部分11d的盘夹持部分6.盘保持部分的旋转中心 的盘片夹持机构和主轴电动机在轴向上彼此匹配。

公开(公告)号：JP2000048535A

公开(公告)日：2000-02-18

申请号：JP21790698

申请日：1998-07-31

Applicant: SONY CORP

Inventor： YAMAMOTO KAZUYUKI ,  TAKAHASHI KAZUO ,  MAMIYA TOSHIO ,  YAMADA TAKASHI ,  SANADA YOTARO

IPC: G11B33/14 ,  G11B25/04

Abstract: PROBLEM TO BE SOLVED: To provide a removable disk memory apparatus which prevents the inside of a disk cartridge from being contaminated with dust particles. SOLUTION: A first air intake passage 25 by which the air at the outside is taken into a disk cartridge 31 from a hub hole 38 via the outer circumference of a spindle motor 11 from a cartridge insertion port 5 is provided. A second air intake passage 27 by which the air at the inside is taken into the disk cartridge 31 from the hub hole 38 via the outer circumference of the spindle motor 11 is provided. A flat filter 41 for the collection is arranged inside at least the first air intake passage 25 to be a tilted or parallel shape.

公开(公告)号：JPH11176114A

公开(公告)日：1999-07-02

申请号：JP34008597

申请日：1997-12-10

Applicant: SONY CORP

Inventor： YAMAMOTO KAZUYUKI ,  TAKAHASHI KAZUO ,  MAMIYA TOSHIO ,  YAMADA TAKASHI

IPC: G11B21/02

Abstract: PROBLEM TO BE SOLVED: To carry out optimum wiring of a head signal, line of a head actuator on the periphery of a head in a disk storage device. SOLUTION: A slider 109 having a head mounted thereon is fixed at the distal end of a suspension 102 of a substantially L-shaped head actuator, at an angle of 60-70 deg. with respect to the suspension 102. A head signal line 110 connected to the head is led out from the rear end of the slider 109 substantially in parallel to the rear end of the slider 109, then is curved twice in the shape of arcs 110a and 110b, and wired up to the rear end part of the suspension along a side rail 111 on one lateral edge of the suspension 102.

公开(公告)号：JPH1145530A

公开(公告)日：1999-02-16

申请号：JP20490197

申请日：1997-07-30

Applicant: SONY CORP

Inventor： YAMAMOTO KAZUYUKI ,  TAKAHASHI KAZUO ,  MAMIYA TOSHIO ,  YAMADA TAKASHI

IPC: G11B21/12

Abstract: PROBLEM TO BE SOLVED: To provide a hard disk device having a protection control means for avoiding a vital damage when an impact is applied to the device, and information processor which contains this hard disk device. SOLUTION: This device rotates a magnetic disk 3 and moves a slider constituted with a magnetic head in the radial direction of this magnetic disk 3 to perform recording/reproducing. In such a case, the device includes an acceleration detecting means (acceleration sensors 7z, 7x, 7y) for detecting the external force exerted on the hard disk device and has the protection control means which saves the slider from the recording/reproducing region of the magnetic disk 3 when the absolute value α(m/s ) of the square root calculated by (αz +αx +αy ) of the accelerations (αz , αx , αy ) detected by the acceleration detecting means is α =1.4(m/s) where the time when the acceleration is below the gravity acceleration G(m/s2 ) is defined as t (s).

公开(公告)号：JPH1064229A

公开(公告)日：1998-03-06

申请号：JP22517396

申请日：1996-08-27

Applicant: SONY CORP

Inventor： MAMIYA TOSHIO ,  YAMAMOTO KAZUYUKI ,  YAMADA TAKASHI ,  TAKAHASHI KAZUO ,  OSHIMA EIJI

IPC: G11B23/033

Abstract: PROBLEM TO BE SOLVED: To realize reduction of thickness and improve workability in manufacture by symmetrically forming an upper shell and lower shell having formed one side surface as a curving surface, and integrally coupling the lower shell and upper shell. SOLUTION: A shutter member 5 is sequentially rotated around an axis 16 against an urging means 18 and adequate loading can be confirmed when a disc cartridge collides with stopper members 47, 48 under the adequate condition. Moreover, the shutter member 5 is perfectly opened and the aperture closed by the shutter member is totally opened and simultaneously a hole 12 for chuck of the lower shell in which the center core is located is also opened.

公开(公告)号：JPH1064225A

公开(公告)日：1998-03-06

申请号：JP22409796

申请日：1996-08-26

Applicant: SONY CORP

Inventor： MAMIYA TOSHIO ,  YAMAMOTO KAZUYUKI ,  YAMADA TAKASHI ,  TAKAHASHI KAZUO ,  OSHIMA EIJI

IPC: G11B23/033

Abstract: PROBLEM TO BE SOLVED: To prevent damage on a disc by dust by forming the end part side of a disc cartridge as a curving surface, providing an aperture to a part of this curving surface and providing a shutter member which opens or closes along this aperture. SOLUTION: A shutter member 31 is formed, for example, of a plastic member. In this case, it is satisfactory if the end part 5a of the shutter member 5 formed of a metal member is curved a little and a plastic member is molded integrally to wrap the end part 5a and to allow one side of plastic member to be projected to a large extent to the front side and the other side thereof to be projected a little to the rear surface side. When such shutter member 31 is formed as explained above, since it is guided by a thinner area 14a of the lower shell 2 and a thinner area of the upper shell 3 and the shutter member 5 formed of a metal material can realize the opening or closing operation without contact with the internal wall of the lower shell 2, generation of dust such as chip which may be generated through friction of the surfaces can be prevented.

公开(公告)号：JPH07146661A

公开(公告)日：1995-06-06

申请号：JP29586393

申请日：1993-11-26

Applicant: SONY CORP

Inventor： YAMADA TAKASHI

IPC: G09F9/40

Abstract: PURPOSE:To eliminate uneven brightnesses caused by louvers in unequal pitch pixels. CONSTITUTION:Intervals of light emitting pixels 8 are constituted into unequal pitches in which small pitches P1 and large pitches P2 are repeated alternately and louvers 3, 3' are provided at upper positions of light emitting pixels 8 of each stage and the thickness of the louver 3' provided in the large pitch P2 is made thicker and the tip part of the upper plane of the louver is protruded more than the tip part of the lower plane of the louver and then the lower directional visible angle of the light emitting pixel 8 being at just upper direction of the louver 3' is made equal to the lower directional visible angle of the light emitting pixel 8 being at just upper direction of the louver 3 provided in the small pitch P1.