JPS5512523A - Thin film magnetic head for vertical magnetization recording - Google Patents

Thin film magnetic head for vertical magnetization recording

Info

Publication number
JPS5512523A
JPS5512523A JP8370678A JP8370678A JPS5512523A JP S5512523 A JPS5512523 A JP S5512523A JP 8370678 A JP8370678 A JP 8370678A JP 8370678 A JP8370678 A JP 8370678A JP S5512523 A JPS5512523 A JP S5512523A
Authority
JP
Japan
Prior art keywords
magnetic pole
conductors
magnetic
mum
thin film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8370678A
Other languages
Japanese (ja)
Inventor
Susumu Kawakami
Mitsumasa Oshiki
Genichi Ishida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP8370678A priority Critical patent/JPS5512523A/en
Publication of JPS5512523A publication Critical patent/JPS5512523A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier

Landscapes

  • Magnetic Heads (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)

Abstract

PURPOSE:To make light the electric load and to enable high speed driving, by providing a plurality of specific thin conductors on the magnetic poles formed with thin film technology. CONSTITUTION:The magnetic pole 5 such as Ni-Fe is formed on the substrate 6, 2 mum in thickness, for example. The insulation layer 7 such as SiO2 1 mum thick is provided on the magnetic pole 5, and a plurality of conductors 8, 2 to 3 mum thick are placed on it so that they are not interlinked with the magnetic pole 5. Since the end close to the magnetic layer of the magnetic pole 5 has the shape in which the conductors 8 are fallen down while closing each other, the magnetic field generated from the conductors 8 is concentrated on the tip of the magnetic pole 5, and accordingly, comparatively small drive current allows steep and strong magnetic field to be fed to the recording media from the tip of the magnetic pole 5. The distance l between the lower end of the conductors 8 and the end surface of the magnetic pole 5 can favorably be within 100 mum. Thus, the head in light weight can be obtained with a simple process to enable high density recording.
JP8370678A 1978-07-10 1978-07-10 Thin film magnetic head for vertical magnetization recording Pending JPS5512523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8370678A JPS5512523A (en) 1978-07-10 1978-07-10 Thin film magnetic head for vertical magnetization recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8370678A JPS5512523A (en) 1978-07-10 1978-07-10 Thin film magnetic head for vertical magnetization recording

Publications (1)

Publication Number Publication Date
JPS5512523A true JPS5512523A (en) 1980-01-29

Family

ID=13809929

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8370678A Pending JPS5512523A (en) 1978-07-10 1978-07-10 Thin film magnetic head for vertical magnetization recording

Country Status (1)

Country Link
JP (1) JPS5512523A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193413A (en) * 1982-05-07 1983-11-11 Japanese National Railways<Jnr> Flat abrasion detecting system for wheel
EP0146861A2 (en) * 1983-12-23 1985-07-03 Siemens Aktiengesellschaft Device with a thin layer magnetic head for perpendicular (vertical) recording
WO2003073445A2 (en) * 2002-02-27 2003-09-04 Seagate Technology Llc Ampere head with perpendicular magnetic field
US6917493B2 (en) 2001-08-28 2005-07-12 Seagate Technology Llc Ampere head with perpendicular magnetic field
US7119987B2 (en) * 2002-04-04 2006-10-10 Headway Technologies Inc. Thin-film magnetic head, a head gimbal assembly, and a hard disk drive
US7168156B2 (en) 2003-09-29 2007-01-30 Headway Technologies, Inc. Method of manufacturing a thin-film magnetic head

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193413A (en) * 1982-05-07 1983-11-11 Japanese National Railways<Jnr> Flat abrasion detecting system for wheel
EP0146861A2 (en) * 1983-12-23 1985-07-03 Siemens Aktiengesellschaft Device with a thin layer magnetic head for perpendicular (vertical) recording
US6917493B2 (en) 2001-08-28 2005-07-12 Seagate Technology Llc Ampere head with perpendicular magnetic field
WO2003073445A2 (en) * 2002-02-27 2003-09-04 Seagate Technology Llc Ampere head with perpendicular magnetic field
WO2003073445A3 (en) * 2002-02-27 2003-12-04 Seagate Technology Llc Ampere head with perpendicular magnetic field
US7119987B2 (en) * 2002-04-04 2006-10-10 Headway Technologies Inc. Thin-film magnetic head, a head gimbal assembly, and a hard disk drive
US7168156B2 (en) 2003-09-29 2007-01-30 Headway Technologies, Inc. Method of manufacturing a thin-film magnetic head

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