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1. 发明专利

JPH11250431A PRODUCTION OF MAGNETIC HEAD SLIDER AND MAGNETIC HEAD SLIDER AND MAGNETIC MEMORY DEVICE 失效
公开(公告)号：JPH11250431A
公开(公告)日：1999-09-17
申请号：JP6929698
申请日：1998-03-04
申请人： HITACHI LTD
发明人： YUYAMA HIROSHI , UMAGOE YUKIMORI , NARISAWA OSAMU , TERAI SHIGEO , ENDO KIJU , YOSHIMURA YASUHIRO , IKEDA YUKIKO , TOKISUE HIROMITSU , YONEKAWA SUNAO , AZUMA KAZUFUMI
IPC分类号： G11B5/60 , G11B21/21
摘要： PROBLEM TO BE SOLVED: To assure self-lubricity and sliding reliability of a magnetic head slider of a magnetic disk device used in a memory device by providing the surface of this magnetic head slider with a lower energy coating film arrayed with fluoroalkyl groups at a high density. SOLUTION: A coating soln. is prepd. by diluting an oligomer formed by substitution of at least part of the alkoxkyl groups in a metal alkoxide compd. having fluoroalkyl groups with hydroxyl groups and further hydrolysis and polymn. of part thereof to each other into a solvent. This soln. is applied on the surface of the slider 1 on which a magnetic head is mounted and which faces a disk medium and is then heated, by which the coating is deposited thereon. The coating film having oil repellence is thus formed. In Fig., the captioned number 1 denotes the magnetic head slider, the captioned number 2 denotes a magnetic head element group, the captioned number 3 denotes the carbon protective film (protective film), the captioned number 4 denotes the oil repellent film and the captioned number 5 denotes the magnetic disk.

2. 发明专利

JPH08212739A MAGNETIC HEAD SUPPORTING MECHANISM AND MAGNETIC DISK APPARATUS 失效
公开(公告)号：JPH08212739A
公开(公告)日：1996-08-20
申请号：JP1669495
申请日：1995-02-03
申请人： HITACHI LTD
发明人： HAGITANI SHINOBU , MASUKAWA TETSUO , TAKEUCHI YOSHINORI , UMAGOE YUKIMORI , MAEDA NAOKI , SHIMIZU TOSHIHIKO , SUGAWARA SHUICHI , TOKISUE HIROMITSU
IPC分类号： G11B5/60 , G11B5/56 , G11B21/21
摘要： PURPOSE: To eliminate the positional deviation of a head and to shorten the accessing time by providing a large recess for containing a fixed area of a slider spacer and a gimbal on the adhering surface of the spacer to the slider. CONSTITUTION: A slider 1 is fixed to a slider spacer 2, and fixed in a single fixed area smaller than the area in which the spacer 2 is in contact with a gimbal 3. The gimbal 3 is fixed to a load arm, and connected to a guide arm. Since the spacer 2 and the gimbal 3 are fixed in the small area, the warpage or twist of the slider spacer mount of the gimbal 3 is scarcely affected to the floating surface of the slider 1. Simultaneously, the warpage, twist of the slider 1 or the spacer 2 is scarcely affected to the mount of the spacer of the gimbal 3, thereby reducing the initial attitude irregularity of the gimbal 3. Thus, the accessing time can be shortened to obtain a magnetic apparatus having a high speed and a large capacity.

3. 发明专利

JPH05154591A METHOD AND DEVICE FOR FORMING LEAF SPRING AND ASSEMBLED LEAF SPRING 失效
公开(公告)号：JPH05154591A
公开(公告)日：1993-06-22
申请号：JP32354791
申请日：1991-12-09
申请人： HITACHI LTD
发明人： NAKAJIMA YASUYUKI , UENO SHIGEYASU , UMAGOE YUKIMORI , MORITA SEIJI , TAKAHASHI MICHIRO , EGUCHI UTAYOSHI , TAKAHASHI NAOKI
IPC分类号： B21D5/04 , B21D11/10 , B21D53/00
摘要： PURPOSE:To obtain a formed leaf spring different in spring load by fixing the spring forming part of a workpiece to a lower die and executing bending after the starting position of bending by the spring forming part of a workpiece is adjusted in the longitudinal direction of the workpiece. CONSTITUTION:In the leaf spring forming method that after a part of the workpiece 4 is fixed by a clamper 3 to the lower die 2 having a curved surface used for bending, the spring forming part of the workpiece 4 is pressed by a roll 1, which can driven to rotate, continuously along the curved surface of the lower die 2, the starting position of bending by the spring forming part is adjusted in the longitudinal direction of the workpiece to fix and working is started.

4. 发明专利

JPS63212082A PRODUCTION OF MAGNETIC HEAD 失效
公开(公告)号：JPS63212082A
公开(公告)日：1988-09-05
申请号：JP4022087
申请日：1987-02-25
申请人： HITACHI LTD
发明人： HARA SHIGEO , UMAGOE YUKIMORI , HORI KAZUNORI
IPC分类号： B23K26/21 , G11B5/48 , G11B21/16
摘要： PURPOSE:To eliminate deformation of a spacer to be generated at the time of joining and to decrease the fluctuation in oscillation characteristic by projecting laser light, etc., on the spacer from the side opposite from the joint surfaces of a load arm and the spacer. CONSTITUTION:The load arm 1 and the spacer 3 are brought into tight contact with each other by means of jigs 8 and the surface of the spacer 3 opposite from the joint surface is heated and melted by the laser light 9, etc., by which the same stresses are generated on both faces of the spacer 3 and the deformation of the spacer is eliminated. The fluctuation in the oscillation characteristic by the fluctuation at the time of the joining is thereby decreased without impairing the condition of the load arm alone.

5. 发明专利

JPS62128108A WINDING METHOD FOR THIN WIRE 失效
公开(公告)号：JPS62128108A
公开(公告)日：1987-06-10
申请号：JP26754685
申请日：1985-11-29
申请人： HITACHI LTD
发明人： SATO HIROSHI , SASAKI HIROYASU , UMAGOE YUKIMORI , OHASHI TOSHIJIRO , HAMADA TOYOHIDE
IPC分类号： H01F41/08 , G11B5/17
摘要： PURPOSE:To strengthen holding, stabilize function, and decrease noise without damaging a wire, by arranging a wire-absorbing plate, having a conductor electrode, near the wire, and generating static electricity by impressing voltage between the wire and the conductor electrode so that the wire is absorbed to the wire-absorbing plate during handling. CONSTITUTION:When positive and negative voltage is impressed between a wire 1 and a conductor electrode 6 near the wire from a d-c power supply 8, positive charges +Q are accumulated on the conductor electrode 6 and negative electrodes -Q being accumulated on the wire 1. The wire 1 is absorbed and held on a wire-absorbing plate 5. With this state maintained a gripper 15 is moved up and down, and turned to draw the wire 1 around. Then, because the wire 1 is moved sliding on the surface of the wire-absorbing plate 5, with it being absorbed to the wire-absorbing plate 5, the position of the wire 1 can be properly regulated, and resultantly handling without entwining and falling of the wire 1 can be performed. Enhancing voltage makes absorbing force large and facilitates stable handling. Besides, when connection of a switch 9 is broken at a terminal (a) side and is made at a terminal (b) side, the absorbing force become zero.

6. 发明专利

JPS62125613A CORRECTING MECHANISM OF WARP OF WIRE MATERIAL IN TOROIDAL WIRING APPARATUS 失效
公开(公告)号：JPS62125613A
公开(公告)日：1987-06-06
申请号：JP26481085
申请日：1985-11-27
申请人： HITACHI LTD
发明人： SATO HIROSHI , OHASHI TOSHIJIRO , HAMADA TOYOHIDE , UMAGOE YUKIMORI
IPC分类号： H01F41/08
摘要： PURPOSE:To correct the warp of a wire material rapidly by a mechanism wherein the peripheral velocity of a pair of rollers provided in the front in the advancing direction of the wire material is set to be larger than the peripheral velocity of the other pair of rollers provided in the rear. CONSTITUTION:A wire material guide member 6a formed to be straight substantially is provided in a part of a guide course 6 for a wire material, and two pairs of rollers are provided so that the respective contact points are in the wire material guide member 6a and that a common tangential line in the contact points is parallel to the wire material guide member. While the two pairs of rollers are spaced appropriately and supported rotatably, the peripheral velocity of one pair of rollers 25, 25' provided in the front in the advancing direction of the wire material is set to be larger than the peripheral velocity of the other pair of rollers 26, 26' provided in the rear, and the frictional force of the former rollers with the wire material is set to be larger than the frictional force of the latter rollers with the wire material. Thereby the warp of the wire material can be corrected, and wiring can be performed at high speed, while it is possible to improve the reliability of a wiring operation.

7. 发明专利

JPS6295781A MAGNETIC HEAD SUPPORTER 失效
公开(公告)号：JPS6295781A
公开(公告)日：1987-05-02
申请号：JP23512985
申请日：1985-10-23
申请人： HITACHI LTD
发明人： SHIROKURA TAKAAKI , SAITO SUKEO , SETONE SHOICHI , UMAGOE YUKIMORI , MUROTA GENSUKE , KURASHIMA KENICHI , MIZOGAMI HATSUMI
IPC分类号： G11B21/21
摘要： PURPOSE:To decrease a positionally-shifting vibration of a head slider by providing locally deformed parts such as more than one or two recesses to at least either of a spring part and the vicinity of the boundary of the spring part and a beams part made of a semi rigid body. CONSTITUTION:The dimple 12 is formed in the vicinity of the boundary between the spring part 5 and the beam part 6 made of a semi rigid body which is a position in the direction perpenducular to the longitudinal direction of the head slider 2 and on the center line l of a load beam 4 that passes through the center point of the head slider 2. The dimple 12 is a recess formed extending to the direction toward the rear side of the paper on which the drawing is drawn, which is so formed as its section is e.g. a hemisphere whose diameter is about 0.5mm. The tortional rigidity of the spring part 5 increases due to this dimple 12. Accordingly the amplitude of the vibration of the magnetic-head supporter 13 decreases. As a result, the positional shifting in respective direction of the head slider due to the vibration decreases.

8. 发明专利

JPS61285706A WINDING METHOD AND ITS EQUIPMENT 失效
公开(公告)号：JPS61285706A
公开(公告)日：1986-12-16
申请号：JP12607485
申请日：1985-06-12
申请人： HITACHI LTD
发明人： HAMADA TOYOHIDE , SATO HIROSHI , OHASHI TOSHIJIRO , UMAGOE YUKIMORI
IPC分类号： H01F41/08
摘要： PURPOSE:To make the speed of automatic winding of the toroidal coil high and improve its reliability, by controlling the tension impressed on the wire so as to be a definite value during the process of winding. CONSTITUTION:During the process of sequential toroidal winding of the wire 34 around the core 21a, the tension generates in the wire 34. When the bending stress and the bending strain generate in the tension detector 26 through the magnetic head 21 and the core supporting stand 22, two resistance wire strain gauges 27 detect them and deliver a signal to the microprocessor. After reducing the speed of the servomotors 32a and 32b, it controls them according to the results of the operation to move the tension pulleys 33a and 33b to the predetermined position within the predetermined time. The speed detector and the position detector detect the speed and the position, respectively, and feed them back to the microprocessor. Thus, the tension generated in the wire during the process of winding is always detected, controlled and maintained to the preset value within a definite time.

9. 发明专利

JP2002117516A STRUCTURE FOR CONNECTING AND PACKAGING MAGNETIC HEAD SLIDER, AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JP2002117516A
公开(公告)日：2002-04-19
申请号：JP2000314424
申请日：2000-10-10
申请人： HITACHI LTD
发明人： SERIZAWA KOJI , OKUNAKA MASAAKI , MIYANO ICHIRO , MATSUMOTO MASAAKI , UMAGOE YUKIMORI , MIURA KAZUMA
IPC分类号： G11B5/60
摘要： PROBLEM TO BE SOLVED: To provide a package structure and a manufacturing method by which high package density, cost reduction and high throughput are realized, and to provide a low-temperature connecting structure and method for the future. SOLUTION: The assembling man-hours are reduced by tape feeding, and the throughput is improved by the simultaneous connection of slider units. Reliability is secured by flexible connection made by a connecting structure using a tape. Microfabrication is achieved by the technology of forming a circuit pattern on the tape, and recognition accuracy is improved by a transparent tape. A connection temperature is reduced by connection made by using ultraviolet rays or the like.

10. 发明专利

JP2568011B2 失效
公开(公告)号：JP2568011B2
公开(公告)日：1996-12-25
申请号：JP20560991
申请日：1991-07-23
申请人： HITACHI LTD
发明人： MASUKAWA TETSUO , MATSUMOTO MASAAKI , SAITO SUKEO , KOJIMA YASUO , SUZUKI TOSHIO , UMAGOE YUKIMORI , MORITA SEIJI
IPC分类号： G11B21/21 , G11B5/48 , G11B5/60

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