专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明专利

JPH11154383A MAGNETIC DISK DEVICE 失效
公开(公告)号：JPH11154383A
公开(公告)日：1999-06-08
申请号：JP27288198
申请日：1998-09-28
申请人： HITACHI LTD
发明人： YAGINUMA YASUHIRO , SHIMIZU TAKEMASA , MASUKAWA TETSUO , UNE TOKUKI , NAKAMURA SHIGEO , MIYATAKE MASAMITSU , TOKUYAMA MIKIO , TAKEUCHI YOSHINORI , IMAI SATOMITSU , MORI KENJI
IPC分类号： G11B21/21
摘要： PROBLEM TO BE SOLVED: To provide a magnetic head supporting mechanism capable of preventing the erroneous operation against the electrical noise generated from the outside or by itself, while firmly fixing a slider mounted with a magnetic head to a gimbal. SOLUTION: On the back face of the slider 2, a slider connection part 84 constituting the gimbal 8 is formed in the longitudinal direction of the slider, and this slider connection part 84 is joined to the back face of the slider 2 along the longitudinal direction of the slider. The gimbal 8 is molded with a conductive material, or the gold plating is applied on the part of the gimbal 8 covering the magnetic head. The slider 2 is prevented from separating away from the gimbal 8 even when the slider 2 is brought into contact with the magnetic disk, and also the erroneous operation due to the electrical noise is prevented, then the performance and the reliability of the magnetic disk device are remarkably improved.

12. 发明专利

JPH1011730A STICKING PREVENTED MAGNETIC HEAD 失效
公开(公告)号：JPH1011730A
公开(公告)日：1998-01-16
申请号：JP16272796
申请日：1996-06-24
申请人： HITACHI LTD
发明人： YONEKAWA SUNAO , TANI KOUJI , UNE TOKUKI , SHIMIZU TAKEMASA
IPC分类号： G11B5/60 , G11B21/21
摘要： PROBLEM TO BE SOLVED: To prevent a magnetic head and a magnetic disk from being stuck to each other at the time the stoppage of a magnetic disk device by promoting the falling of lubricant stuck on a floating surface in the floating of the mag netic head. SOLUTION: In this magnetic head, parts having minute difference in level for accumulation of lubricant 6 are formed at flow-out ends of the floating surface 3 of a slider 1. When lubricant 8 stuck on the floating surface 3 of the slider 1 in the working of the magnetic disk device is collected in the parts 6 having difference in level and becomes a volume of not less than a certain volume, the lubricant 8 is brought into direct contact with the magnetic disk medium at the time of the contact between the floating surface 3 of the slider 1 and the magnetic disk or in the operation of a CSS and lubricant 8 falls off from the slider 1. Lubricant 8 accumulated on the parts 6 having difference in level repeats stickings and fallings in this manner and, as a result, the increasing of lubricant to be stuck on the slider 1 is suppressed.

13. 发明专利

JPH05159499A MAGNETIC HEAD SUPPORTING ASSEMBLY 失效
公开(公告)号：JPH05159499A
公开(公告)日：1993-06-25
申请号：JP32287791
申请日：1991-12-06
申请人： HITACHI LTD
发明人： UNE TOKUKI , SHIMIZU TAKEMASA , MASUKAWA TETSUO , MORI KENJI
IPC分类号： G11B21/21
摘要： PURPOSE:To decrease the air bearing rigidity of the air bearing slider of a magnetic head assembly for which this slider is used by dividing the flexible body of the assembly to two bodies; a tongue part and a flexible finger part. CONSTITUTION:The slider 3 mounted with a magnetic head is adhered to a part of the flexible body mounted to the support and a specified load is applied by the projection for loading of the flexible body. The flexible finger part 8 and the tough-shaped part 9 of the part adhere to the slider are constituted of separate members and are adhered. As a result, the rigidity of the flexible body is lowered without generating an individual difference by reducing the size, by which the follow-up characteristic of the air bearing slider to the surface of the magnetic recording medium is enhanced.

14. 发明专利

JPH02206075A LINEAR ACTUATOR FOR MAGNETIC DISK DEVICE 失效
公开(公告)号：JPH02206075A
公开(公告)日：1990-08-15
申请号：JP2577289
申请日：1989-02-06
申请人： HITACHI LTD
发明人： NAKANISHI MICHIHIRO , SUZUKI MASAMI , NISHIDA HIROSHI , SUZUKI TOMIO , UNE TOKUKI
IPC分类号： G11B21/02
摘要： PURPOSE:To prevent a guide rail from being deformed and the wear and to execute positioning with high accuracy by connecting the guide rail and a rail housing by using plural fitting members whose connecting force is different. CONSTITUTION:A guide rail 5 is attached to a rail housing 6 with two pieces of fitting screws 11 (11a, 11b). Also, the joint forces Fa, Fb are managed to a prescribed value by making the torque at the time of clamping different from each other. In such a manner, a stress caused by a thermal expansion difference of the rail 5 and the housing 6 is released since the slip is generated in the joint part interface of the screw 11b whose joint force is smaller in two pieces of fitting screws 11, and the rail 5 is deformed only in the longitudinal direction. Accordingly, the relative position of a servo-head 3a and a data head 3b is not varied, an off-track quantity becomes about zero, and also, wear scarcely occurs, and positioning can be executed with high accuracy.

15. 发明专利

JPH0281394A MAGNETIC DISK DEVICE 失效
公开(公告)号：JPH0281394A
公开(公告)日：1990-03-22
申请号：JP23230288
申请日：1988-09-19
申请人： HITACHI LTD
发明人： UNE TOKUKI , SUZUKI MASAMI , OTSUKA MASAKI , TATEYAMA KENICHI
IPC分类号： G11B33/14
摘要： PURPOSE:To keep air surrounding a magnetic disk in a clean condition by providing a flexible film and interrupting the air in a spindle part and an actuator part. CONSTITUTION:A flexible bellows-shaped film 9 is provided between a spindle part holding construction body and an actuator 4 being the dust-proofing construction in a sealed room to accommodate a magnetic disk, and the air at the spindle part and the actuator part are completely interrupted. Consequently, since the dusting at the actuator part does not give any influences to the air at the spindle part, in short, between the magnetic disk and the magnetic head, the air at the spindle part is kept in the clean condition.

16. 发明专利

JPH0196877A GUIDE MECHANISM FOR ACTUATOR FOR MAGNETIC DISK DEVICE 失效
公开(公告)号：JPH0196877A
公开(公告)日：1989-04-14
申请号：JP25365587
申请日：1987-10-09
申请人： HITACHI LTD
发明人： UNE TOKUKI , NAKANISHI MICHIHIRO , SUZUKI MASAMI , SUZUKI TOMIO , NISHIDA HIROSHI
IPC分类号： G11B21/02
摘要： PURPOSE:To attach a rail to a housing with a high accuracy by disposing two parallel planes longitudinally of a guide rail, providing supporting means contacting at three parts which are not present on the same straight line on a first plane and at the two parts on a second plane and supporting the guide rail through the supporting means. CONSTITUTION:The guide rail 4 made of stailess steel has a section of hexagon and faces 41, 42 supported by Al housing 5. The housing 5 is worked to a convexed form to dispose the supporting parts 11a-11e of the guide rail 4. The convexed parts 11a-11c are disposed on a vertical face 41 and the convexed parts 11d, 11e are disposed on a horizontal face 42, a height is about 10mum and an area is a rectangle of about 8mmX3mm. Since the guide rail 4 is supported on the housing 5 by five small areas 11a-11e, the movement of a contact area is not generated even when a working accuracy is not high and a bimetal phenomenon is generated, but it always abuts against the rail 4 in the same contact area and can be supported to stabilize the travel of an actuator and improve the positioning accuracy of a head.

17. 发明专利

JPS641462A VOICE COIL MOTOR FOR MAGNETIC DISK DEVICE 失效
公开(公告)号：JPS641462A
公开(公告)日：1989-01-05
申请号：JP15449087
申请日：1987-06-23
申请人： HITACHI LTD
发明人： SUZUKI MASAMI , UNE TOKUKI , NAKANISHI MICHIHIRO , SUZUKI TOMIO , NISHIDA HIROSHI , NAKAKOSHI KAZUO , NARUSE ATSUSHI , TAKAHASHI TAKESHI , HORINOUCHI MASATOSHI
IPC分类号： G11B21/02 , H02K33/18
摘要： PURPOSE:To hasten the response without regard to the position of a voice coil, by providing a high-conductive member to allow the line of magnetic force generated at the inserted position and projected position to go through at about the same quantity. CONSTITUTION:A voice coil motor is composed of a magnetic circuit 11 and a coil 15. The magnetic circuit 11 has a cylindrical magnetic substance 12 and a permanent magnet 13, among which magnetic gap 14 is formed. The coil 15 is of a long coil type set up to the magnetic gap 14. A copper ring 16 as a high-conductive member is provided to the external and internal edges of the permanent magnet 13 of the magnetic circuit 11. This copper ring 16 is arranged so that the most part of the line of magnetic force generated when the coil 15 is deepestly inserted to the magnetic substance 12 and generated when the coil 15 is most projected may go through in almost equal amount. High response can thereby be obtained regardless of which position the coil is arranged.

18. 发明专利

JPH06131838A MAGNETIC HEAD SUPPORTING MECHANISM OF MAGNETIC DISK DEVICE, MAGNETIC HEAD SUPPORTING BODY OF THAT DEVICE AND THAT DEVICE 失效
公开(公告)号：JPH06131838A
公开(公告)日：1994-05-13
申请号：JP5840193
申请日：1993-03-18
申请人： HITACHI LTD
发明人： YAGINUMA YASUHIRO , SHIMIZU TAKEMASA , MASUKAWA TETSUO , UNE TOKUKI , NAKAMURA SHIGEO , MIYATAKE MASAMITSU , TOKUYAMA MIKIO , TAKEUCHI YOSHINORI , IMAI SATOMITSU , MORI KENJI
IPC分类号： G11B21/21 , G11B5/48
摘要： PURPOSE:To firmly fix and stick a slider loading a magnetic head on the jointing part of a gimbal by jointing a slider jointing part to the back surface of the slider in a longitudinal direction. CONSTITUTION:The magnetic head supporting mechanism constitutes the gimbal 8 and the slider jointing part 84 stuck on the back surface of the slider 2 is jointed to the back surface of the slider 2 along the longitudinal direction of the slider 2. Thus, sticking area to the back surface longitudinal direction of the slider 2 of the slider jointing part 84 constituting the gimbal 8 is enough secured. Consequently, the gimbal 8 is firmly stuck on the slider 2, especially the slider 2 which is miniaturized.

19. 发明专利

JPH04313870A HEAD SUPPORTING DEVICE AND DISK STORAGE DEVICE 失效
公开(公告)号：JPH04313870A
公开(公告)日：1992-11-05
申请号：JP7964891
申请日：1991-04-12
申请人： HITACHI LTD
发明人： MORI KENJI , UNE TOKUKI , TAKAHASHI TAKESHI , NARUSE ATSUSHI , SAITO SUKEO , MASUKAWA TETSUO , TAKEUCHI YOSHINORI , IMAI SATOMITSU
IPC分类号： G11B5/49 , G11B21/16 , G11B21/21
摘要： PURPOSE:To attain a high speed of the access and the high accuracy of the positioning by allowing only one axis rotation of the load arm to the support part side of the load arm and providing a substantial rotary center axis restricting the motion in the other direction. CONSTITUTION:A load arm rigid material 100 supports a head slider 2 via a gimbals 3 provided at the tip part and the substantial rotary shaft 101 allows only one axial rotation of the rigid material 100 and the motion in the other direction is restricted. The load arm supporting part 102 supports the rigid material 100 and a load arm spring part 103 is provided between the rigid material 100 and the supporting part 102 and supports the rigid material 100 flexibly and also utilizes a bending deformation of a leaf spring element in order to impart a pressing load to a slider 2. Namely the tip part of the rigid material 100 is supported with a high rigidity of an air film between the slider 2 and the disk 1, so the rigid material 100 becomes substantially both edge support and a high natural frequency as a head supporting mechanism can be realized. Thus a high speed of the access is available.

20. 发明专利

JPH02214083A MAGNETIC DISK DEVICE AND ITS ASSEMBLING METHOD 失效
公开(公告)号：JPH02214083A
公开(公告)日：1990-08-27
申请号：JP3406089
申请日：1989-02-14
申请人： HITACHI LTD , HITACHI COMPUTER PERIPHERALS
发明人： SUZUKI MASAMI , MIHASHI HIROYUKI , OTSUKA MASAKI , UNE TOKUKI , KAMIMURA NAOTO
IPC分类号： G11B5/09 , G11B25/04
摘要： PURPOSE:To inspect the presence/absence of a defect before assembling by providing a holding means, performing clearance fit on the rotary shaft of a spindle assembling body, and fixing the body on the rotary shaft loadably/ unloadably freely by an engaging means. CONSTITUTION:A holding means hub 12 housed in a sealed space 2 is clearance- fitted in the inner wheel 5a of a bearing 5 on the inner end part side of the rotary shaft 4 of the spindle assembling body S projecting in the inside of the sealed space 2. Also, the body is fixed loadably/unloadably freely on the end face of the rotary shaft 4 by using the engaging means consisting of a connecting piece 13b interposed between a fixed screw 13a, 13a screwed in an axial direction and the end face of the hub 12. When a magnetic disk 15 is held by using the holding means 13, it is possible to inspect the presence/ absence of the defect of the disk 15 or the unbalance of rotation at such state. Thereby, the occurrence of the defect can be suppressed to a minimum after the completion of assembling by assembling only the disk judged as a normal disk in pre-inspection.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式