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JPS57127908A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS57127908A
JPS57127908A JP1195881A JP1195881A JPS57127908A JP S57127908 A JPS57127908 A JP S57127908A JP 1195881 A JP1195881 A JP 1195881A JP 1195881 A JP1195881 A JP 1195881A JP S57127908 A JPS57127908 A JP S57127908A
Authority
JP
Japan
Prior art keywords
magnetic
cores
thin piece
face
tips
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
JP1195881A
Other languages
Japanese (ja)
Inventor
Osamu Suzuki
Goro Akashi
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP1195881A priority Critical patent/JPS57127908A/en
Publication of JPS57127908A publication Critical patent/JPS57127908A/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
    • 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

Landscapes

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

Abstract

PURPOSE:To achieve a magnetic field distribution with a sharp beam and to enable recording efficiently, by providing a winding on the outer surface of magnetic core drive provided left and right opposingly, inserting a magnetic substance thin film in an air gap between the front tips of each core, and bridging and joining the front tips of each core. CONSTITUTION:A magnetic head 20 is inserted in a minute air gap 23 formed between the front tips of magnetic cores 21, 22 which are left and right pair with high magnetic permeability so that a front end face of a thin piece 24 having higher magnetic permeability than that of the cores 21, 22 is projected on a virtual extension plane of the cores 21, 22 by a value of 5-50mum conventionally. A reinforcement member 25 is added to avoid a step between the front end face 24a of the thin piece 24 and the virtual extension surface, allowing to bridge and join the front tips of the cores 21, 22 and to fix the thin piece 24. Energizing coils 27, 28 are wound around the cores 21, 22 and each opposing tip is energized to the same polarity. Since the thin piece 24 is magnetized for a magnetic substance layer 5 with the magnetic field distribution of very sharp beam from the front end face 24a, efficient recording can be made.
JP1195881A 1981-01-29 1981-01-29 Magnetic head Pending JPS57127908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1195881A JPS57127908A (en) 1981-01-29 1981-01-29 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1195881A JPS57127908A (en) 1981-01-29 1981-01-29 Magnetic head

Publications (1)

Publication Number Publication Date
JPS57127908A true JPS57127908A (en) 1982-08-09

Family

ID=11792120

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1195881A Pending JPS57127908A (en) 1981-01-29 1981-01-29 Magnetic head

Country Status (1)

Country Link
JP (1) JPS57127908A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987612A (en) * 1982-11-11 1984-05-21 Sony Corp Vertical magnetic recording system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987612A (en) * 1982-11-11 1984-05-21 Sony Corp Vertical magnetic recording system

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