公开(公告)号：JP2002092995A

公开(公告)日：2002-03-29

申请号：JP2000282685

申请日：2000-09-18

Applicant: SONY CORP

Inventor： MISHIMA AKIO ,  WATANABE KENJIRO

IPC: G11B11/10 ,  G11B7/135 ,  G11B7/22 ,  G11B11/105

Abstract: PROBLEM TO BE SOLVED: To suitably perform recording and/or reproduction of an information signal to a recording medium even when the floating quantity of an optical head slider from the recording medium is extremely small. SOLUTION: A means for recording and/or reproducing the signal performed to the recording medium 4, is provided with a slider member 11 which floats and runs over the recording medium 4, a hemispheric optical lens 12 which is joined to the slider member 11 and a magnetic field generating means 16 which is provided in the lower surface side facing the recording medium 4 of the slider member 11 to which the hemispheric optical lens 12 is joined. The slider member 11 is composed of the same material as the material of the hemispheric optical lens 12, and the flat surface of the hemispheric optical lens 12 is joined to the upper surface part of the slider member.

公开(公告)号：JP2001129762A

公开(公告)日：2001-05-15

申请号：JP31238699

申请日：1999-11-02

Applicant: SONY CORP

Inventor： MISHIMA AKIO

IPC: B24C5/02 ,  B24C5/04

Abstract: PROBLEM TO BE SOLVED: To provide a jet machining method machining a cross-sectionally rectangular groove on a surface of a workpiece. SOLUTION: In this particulate matter jet machining method, a polishing material acceleration chamber 56 of a nozzle 12 is divided into two, while the two divided chambers are inclined to each other such that solid-gas two- phase flows are jetted to directions inclined to the normal direction to a machined surface of the work piece 11, allowing going away from each other, and perpendicular to the length direction of a resist mask 60.

公开(公告)号：JP2000246641A

公开(公告)日：2000-09-12

申请号：JP5544999

申请日：1999-03-03

Applicant: SONY CORP

Inventor： MISHIMA AKIO

IPC: B24C1/04

Abstract: PROBLEM TO BE SOLVED: To prevent the occurrence of sagging of edge by fixing a work onto a work holder, forming a barrier so as to protect side end surfaces of the work, and injecting the solid two-phase flow of the powder and granular material and the gas from a cross direction or oblique direction in relation to the work. SOLUTION: A work 11 is fixed to a surface of a work holder 50 through a peeling sheet 51. A barrier 52 is formed in the periphery of the work 11. Injection of the powder and granular material to the work 11 by a nozzle 12 is performed from a cross direction or an oblique direction in relation to the surface of the work 11. With this structure, abrasion due to the blow-back of the air when the nozzle 12 is deviated from a position over the work 11 can be prevented by the barrier 52. Consequently, side end surfaces of the work 11 can be protected by the barrier 52, and the side end surfaces of the work 11 is formed with a sharp edge without receiving the injection machining. Generation of sagging of edge can be thereby prevented.

公开(公告)号：JPH09300219A

公开(公告)日：1997-11-25

申请号：JP14239796

申请日：1996-05-14

Applicant: SONY CORP

Inventor： MISHIMA AKIO ,  KOBAYASHI SHIGEO

IPC: B24C9/00

Abstract: PROBLEM TO BE SOLVED: To provide a powder beam machining device and a machining method capable of improving productivity through the improvement of machining efficiency. SOLUTION: Regarding the powder beam machining method where a two- phase solid and gas flow containing particulates is blown from a nozzle 12 movable in X-axis and Y-axis directions relative to a workpiece 13 for the powder beam machining thereof, the nozzle 2a is concurrently moved in both X-axis and Y-axis directions, and slantwise in a back and forth direction. This motion is repeated in right and left directions, thereby making the right and left scan locus of the workpiece 13 into an approximately staggered or wave form.

公开(公告)号：JPH07312054A

公开(公告)日：1995-11-28

申请号：JP12203295

申请日：1995-05-22

Applicant: SONY CORP

Inventor： MISHIMA AKIO

IPC: G11B23/03 ,  G11B23/033

Abstract: PURPOSE:To obtain a disk cartridge preventing the fluttering at the time of rotation of the metallic thin film disk provided with a recording surface for the perpendicular magnetic recording. CONSTITUTION:A main body 13 of the flat box type cartridge is constituted of an upper case 11 and a lower case 12. The metallic thin film disk 1 provided with a magnetic film of, e.g. Co-Cr or Co-Cr/Fe-Ni, etc., is freely rotatably housed in this main body 13 of the cartridge. On each internal surface 11a, 12a of the upper and lower cases 11, 12 confronted with the outer peripheral part 1a where is deviated from the recording surface 1b of this disk 1, annular guide parts 15, 16 with large/small diameter for alternately holding the outer peripheral part 1a of the disk 1 are respectively formed to protrude as one body. Thus, so-called fluttering at the time of rotation due to the warp of the disk 1 is prevented, and the contact between the disk 1 and the magnetic head for perpendicular magnetic recording is always maintained in the stable state.

公开(公告)号：JPH06325527A

公开(公告)日：1994-11-25

申请号：JP11016693

申请日：1993-05-12

Applicant: SONY CORP

Inventor： FUKUTANI AKIHITO ,  MISHIMA AKIO

IPC: G11B21/21

Abstract: PURPOSE:To enhance the floating characteristics of a head by facilitating the control in the profile and the cutting quantity of alumina film of a slider head. CONSTITUTION:When a recess 7 is made in predetermined pattern in the ABS face (opposed to a disc) of a slider head 3, the end part of an opening 8a in a resist film 8 is substantially aligned with the end face of an alumina film 5. Furthermore, a dummy 22 is provided closely to the side face of the alumina film 5 in order to control the quantity of the alumina film 5 being cut by microparticles at the time of microparticle jet machining.

公开(公告)号：JPH05301066A

公开(公告)日：1993-11-16

申请号：JP13011992

申请日：1992-04-23

Applicant: SONY CORP

Inventor： MISHIMA AKIO

IPC: B05D1/12 ,  B05D7/24

Abstract: PURPOSE:To enable a coating to a material to be worked in a short time in atmosphere at a room temp. and to enable a dense coating with excellent adhesion. CONSTITUTION:In a powder beam coating method by injecting powdery fine particles 15 through a nozzle to the surface of the material to be worked 36 to form a fine particle coating film on the surface of the material to be worked 36, the fine particles 15 injected through the nozzle is embedded into the surface of the material 36 to form a coating film of the fine particles 15.

公开(公告)号：JPH05285838A

公开(公告)日：1993-11-02

申请号：JP12003592

申请日：1992-04-14

Applicant: SONY CORP

Inventor： MISHIMA AKIO ,  YOSHIKAWA TAKASHI ,  TSUCHIYA TAKASHI

IPC: B24C7/00

Abstract: PURPOSE:To perform control such that a constant amount of a powder material is injected through an injection nozzle from a mixing chamber, in a processing device which performs etching processing or coating processing through injection of a particulate-form powder material through an injection nozzle. CONSTITUTION:A decrease amount of a powdery material 18 in a mixing chamber 2 measured by means of an electric balance 26 is inputted to a control unit 27. A voltage value of a bimorph vibrator 21 is controlled by means of the control unit 27 to regulate an injection amount of a powder material injected through an injection nozzle 15.

公开(公告)号：JPH04329859A

公开(公告)日：1992-11-18

申请号：JP13059791

申请日：1991-05-02

Applicant: SONY CORP

Inventor： MISHIMA AKIO ,  HAYATA YUTAKA

IPC: C23C4/12

Abstract: PURPOSE:To offer a deposition method for forming a deposit having high strength and in which internal stress is relaxed by the deposition of powder beams. CONSTITUTION:Two kinds of powders with different softening points are mixed, and this mixed powder is sprayed and deposited on a substrate 10 at >=50m/sec speed to form a deposit 11. Then, its temp. is raised till the powder with the lower softening point between the powders used for the mixing is melted, and annealed is executed, by which they are brought into reaction with to obtain a deposit having high strength.

公开(公告)号：JPH04145229A

公开(公告)日：1992-05-19

申请号：JP26582090

申请日：1990-10-03

Applicant: SONY CORP

Inventor： YOSHIKAWA TAKASHI ,  HAYAFUSA NAGATAKA ,  MISHIMA AKIO ,  MATSUMOTO SHIGEO

IPC: B24C1/00 ,  B24C5/04 ,  B65G51/02 ,  F04F5/20 ,  F15D1/02 ,  F16D1/02 ,  F16D1/033 ,  H01L21/46

Abstract: PURPOSE:To easily obtain gas vortex flow provided with required flow speed and flow quantity as well as negative pressure strength by forming high pressure air inflow passages, extended in the inclined direction to the axis of a pipe body and directed to a position out of the axis, at the pipe wall of a gas passage, and supplying high pressure air into the pipe body from these inflow passages. CONSTITUTION:High pressure air 22 is injected into a high pressure air supply chamber 20 through a high pressure air supply pipe 21 and jetted into a gas passage 18 through high pressure air inflow passage 19, 19. The high pressure air 22 is inclined at a constant angle to the axis O-O of the gas passage 18 and jetted from the direction focused on a position out of the axis O-O. The high pressure air 22 is therefore provided with a vector element in the direction along the axis O-O and a vector element in the direction intersecting the gas passage 18, so that the high pressure air 22 is provided with turning performance into the direction of arrow marks from the place of fitting the inner peripheral surface of a hole 13 and flows in the gas passage 18. The high pressure air 22' thus becomes vortex flow. This vortex flow 22' is accelerated by the taper part 13b of the hole 13 and flows in the downstream side of a pipe part 4, which results in the generation of negative pressure on the upstream side.