MAGNETIC HEAD SLIDER AND MAGNETIC DISK DEVICE USING THE SAME,申请号JP20100158003-传众专利搜索

首页产品黄页商标征信

会员服务注册登录

法人/股东/高管

发明名称	MAGNETIC HEAD SLIDER AND MAGNETIC DISK DEVICE USING THE SAME
摘要	<P>PROBLEM TO BE SOLVED: To attain high recording density of a magnetic disk device by reducing the magnetic spacing of a magnetic head slider. <P>SOLUTION: In a magnetic head slider having a reproducing head, a recording head and a heater, a contact surface in contact with a medium surface when an electric power is applied to the heater and step surfaces provided on the both sides of the contact surface through a step part 333 are arranged on a disk facing surface of an upper shield layer 322, a lower shield layer 323, a lower magnetic pole 315, a shielding layer 312 and an auxiliary magnetic pole 313. A cylindrical portion 33 is formed on the disk facing surface so that the contact surface of the upper shield layer, the lower shield layer, the lower magnetic pole, the shielding layer and the auxiliary magnetic pole is almost circular as a whole. <P>COPYRIGHT: (C)2012,JPO&INPIT
申请公布号	JP2012022731(A)	申请公布日期	2012.02.02
申请号	JP20100158003	申请日期	2010.07.12
申请人	HITACHI LTD	发明人	TSUCHIYAMA RYUJI;OKAWA TAKAKO;SATO DAISUKE;HASHIMOTO MITSUHIRO
分类号	G11B5/31;G11B21/21	主分类号	G11B5/31
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Vehicle e.g. automobile, boarding device, has adjacent mechanism whose detachable connector is positioned during boarding operation before positioning detachable connector of main mechanism

Piezo linear drive, has group of piezo stack actuators, which drive rotor, and adjusting area expanding, separately controllable, additional piezoelectric multilayer actuator arranged in rotor or its free end

Production of a rolling bearing forming a clutch controller comprises locally deforming an inner ring to outwardly displace a part of the material in the radial direction and further processing

Engine e.g. internal combustion engine, controlling system for e.g. aircraft, has turbocharger system connected with engine, and nozzle having tapered divergence form, such that ejected air has ultrasonic speed under operating conditions

Ferrite core antenna array e.g. for external door grasp of motor vehicle, has elongated flattened ferrite core with coil arranged on it and which in cavity has grasp extending in longitudinal direction inside door handle

Ski binding has swivel up plate at front with bolt element behind or underneath front ski binding to secure binding for alpine use in addition to cross country use

KNIT FORM-FIT SLIPCOVER

Hardware description language e.g. very high speed integrated circuit hardware description language, code generating method for e.g. programmable logic device, involves implementing state transitions of machine when request is carried out

Method for controlling and regulating an internal combustion engine, involves setting of minimum pressurization level from maximum individual accumulator pressure in first step

Internal combustion engine operating method for vehicle, involves temporizing preset time span between end of injection and beginning of ignition, until electrode is immersed into mixture region, and carrying out ignition out within region

Shock wave producer for treatment of e.g. urolithasis, has shock wave generator to generate waves that are transformed into convergent waves by reflector and lens, where convergent waves form focal region with depth of specific millimeters

Smart card e.g. subscriber identity module card, for use in e.g. bank card, has data and control bus with contact area to change digital data over smart card reader, and processor controlling personal computer and/or mobile radio terminal

New 8-beta-substituted estratriene derivatives esterified with a sulfamoylphenyl-substituted acid residue, are prodrugs useful as carboanhydrase inhibitors for treating estrogen deficiency disorders

Unit for selective release of compressed air or mixture of compressed air and dry ice for dry-ice blasting device, has second switching element which can be actuated independent of first switching element

Channel space division for use in supermarket, with radio frequency identification transmitting and reading device to check goods are set on belt and that trolley has been emptied

Connecting element e.g. pressing or punching nuts or pins for inserting and fastening in workpieces, has profile formed on surface that is held in workpiece after anchoring process

Game recovering device e.g. for recovering and transporting killed 'game', has hook which hooks in game piece and has belt connected to hook

Anti-slip matting, e.g. for use under carpets, floor mats or filing cabinets, comprises non-slip material with a pressure-sensitive or self-adhesive coating on one or both sides

Fluorescent lamp control circuit for aircraft industry, has feed lines between inductor and capacitance, where parasitic capacitance of switching unit and voltage of converter are added to provide starting voltage

Device for processing of frame profiles cut on miter, has holding devices which are arranged horizontal in common plane, swiveling around stationary axis perpendicular to plane