JPS57113406A - Vertical magnetic recording head - Google Patents

Vertical magnetic recording head

Info

Publication number
JPS57113406A
JPS57113406A JP18529080A JP18529080A JPS57113406A JP S57113406 A JPS57113406 A JP S57113406A JP 18529080 A JP18529080 A JP 18529080A JP 18529080 A JP18529080 A JP 18529080A JP S57113406 A JPS57113406 A JP S57113406A
Authority
JP
Japan
Prior art keywords
magnetic
magnetic pole
recording medium
vertical magnetic
magnetic recording
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
JP18529080A
Other languages
Japanese (ja)
Inventor
Motoharu Tanaka
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP18529080A priority Critical patent/JPS57113406A/en
Publication of JPS57113406A publication Critical patent/JPS57113406A/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
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10532—Heads
    • G11B11/10534—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording
    • 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
    • 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
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal

Landscapes

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

Abstract

PURPOSE:To improve the efficiency of magnetic energy and thermal energy in information recording, by arranging a main magnetic pole and an auxiliary magnetic pole on one side of a vertical magnetic recording medium so that a closed magnetic path is formed through the vertical magnetic recording medium. CONSTITUTION:An auxiliary magnetic pole 13 consists of a center part 13A provided around a main magnetic pole 11 and a yoke part 13B with large area on a surface opposed to a vertical magnetic recording medium A, and the center part 13A is wound with a coil 14 for information recording. Therefore, the main magnetic pole 11 and auxiliary magnetic pole 13 form a closed magnetic path through the vertical magnetic recording medium A, so the efficiency of magnetic energy in information recording is improved. A thermal conductor 15, such as an optical fiber, where a heat ray is transmitted is buried at the either side of the yoke part 13B of the auxiliary magnetic pole 13, and the heat ray is irradiated with from the side of the vertical magnetic recording medium A, so the efficiency of thermal energy in information recording and reproduction is improved.
JP18529080A 1980-12-30 1980-12-30 Vertical magnetic recording head Pending JPS57113406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18529080A JPS57113406A (en) 1980-12-30 1980-12-30 Vertical magnetic recording head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18529080A JPS57113406A (en) 1980-12-30 1980-12-30 Vertical magnetic recording head

Publications (1)

Publication Number Publication Date
JPS57113406A true JPS57113406A (en) 1982-07-14

Family

ID=16168258

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18529080A Pending JPS57113406A (en) 1980-12-30 1980-12-30 Vertical magnetic recording head

Country Status (1)

Country Link
JP (1) JPS57113406A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6067508U (en) * 1983-10-12 1985-05-14 日本ビクター株式会社 Perpendicular magnetization type magnetic head
EP0230325A2 (en) * 1986-01-23 1987-07-29 Sony Corporation Device for producing a high frequency modulation magnetic field used in magneto-optical recording
EP0278756A2 (en) * 1987-02-13 1988-08-17 Oki Electric Industry Company, Limited Magnetic field generators
EP0665541A2 (en) * 1994-01-31 1995-08-02 Matsushita Electric Industrial Co., Ltd. Information recording and reproducing device
US5703840A (en) * 1994-04-13 1997-12-30 Alps Electric Co., Ltd. Magnetic head and magneto-optical recording device
WO2003021576A1 (en) * 2001-08-28 2003-03-13 Seagate Technology Llc Recording heads using magnetic fields generated locally from high current densities in a thin film wire
US6665136B2 (en) 2001-08-28 2003-12-16 Seagate Technology Llc Recording heads using magnetic fields generated locally from high current densities in a thin film wire
EP1501076A1 (en) * 2003-07-24 2005-01-26 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic head having thermally assisted recording element, and method of fabrication thereof
US6917493B2 (en) 2001-08-28 2005-07-12 Seagate Technology Llc Ampere head with perpendicular magnetic field
US7791839B2 (en) 2006-09-14 2010-09-07 Hitachi Global Storage Technologies Netherlands B.V. Thermally-assisted perpendicular magnetic recording system with write pole surrounding an optical channel and having recessed pole tip

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6067508U (en) * 1983-10-12 1985-05-14 日本ビクター株式会社 Perpendicular magnetization type magnetic head
EP0230325A2 (en) * 1986-01-23 1987-07-29 Sony Corporation Device for producing a high frequency modulation magnetic field used in magneto-optical recording
EP0278756A2 (en) * 1987-02-13 1988-08-17 Oki Electric Industry Company, Limited Magnetic field generators
US6101164A (en) * 1994-01-31 2000-08-08 Matsushita Electric Industrial Co., Ltd. High density recording by a conductive probe contact with phase change recording layer
EP0665541A3 (en) * 1994-01-31 1996-11-20 Matsushita Electric Ind Co Ltd Information recording and reproducing device.
EP0665541A2 (en) * 1994-01-31 1995-08-02 Matsushita Electric Industrial Co., Ltd. Information recording and reproducing device
US5703840A (en) * 1994-04-13 1997-12-30 Alps Electric Co., Ltd. Magnetic head and magneto-optical recording device
WO2003021576A1 (en) * 2001-08-28 2003-03-13 Seagate Technology Llc Recording heads using magnetic fields generated locally from high current densities in a thin film wire
US6665136B2 (en) 2001-08-28 2003-12-16 Seagate Technology Llc Recording heads using magnetic fields generated locally from high current densities in a thin film wire
US6917493B2 (en) 2001-08-28 2005-07-12 Seagate Technology Llc Ampere head with perpendicular magnetic field
EP1501076A1 (en) * 2003-07-24 2005-01-26 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic head having thermally assisted recording element, and method of fabrication thereof
US7268973B2 (en) 2003-07-24 2007-09-11 Hitachi Global Storage Technologies Netherlands, B.V. Perpendicular magnetic head having thermally assisted recording element
US7791839B2 (en) 2006-09-14 2010-09-07 Hitachi Global Storage Technologies Netherlands B.V. Thermally-assisted perpendicular magnetic recording system with write pole surrounding an optical channel and having recessed pole tip

Similar Documents

Publication Publication Date Title
JPS5778652A (en) Thermal magnetic recording carrier and thermal magnetic recording system
JPS57113406A (en) Vertical magnetic recording head
IT8322974A0 (en) PROCEDURE FOR PRODUCING A GRAIN-ORIENTED ELECTRICAL STEEL TAPE EQUIPPED WITH A HIGH MAGNETIC FLUX DENSITY.
JPS5421709A (en) Thermomagnetic recording system
JPS563422A (en) Magnetic head
MY110712A (en) Magneto-optical recording apparatus.
JPS5587325A (en) Magnetic head for vertical magnetic recording
JPS5674809A (en) Vertical recording/reproducing magnetic head
JPS57183605A (en) Vertical magnetic recording and reproducing system
JPS57179907A (en) Vertical magnetic recorder
JPS5687219A (en) Vertical magnetization type magnetic head
JPS57113407A (en) Vertical magnetic recording head
JPS5434219A (en) Magnetic head
JPS57113408A (en) Vertical magnetic recording head
JPS5766532A (en) Optical recording method
JPS57210415A (en) Magnetic head
JPS57183604A (en) Vertical magnetic recording and reproducing system
JPS5530841A (en) Clad magnetic material
JPS55160322A (en) Magnetic head
JPS5634A (en) Magnetic recording medium
JPS57179932A (en) Magnetic head
JPS57100606A (en) Vertical magnetic recording and reproducing system
JPS5542302A (en) Magnetic head
JPS5463808A (en) Multi-channel magnetic head
JPS63197007A (en) Magnetic head for magneto-optical recorder