JPS55108920A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS55108920A
JPS55108920A JP1572079A JP1572079A JPS55108920A JP S55108920 A JPS55108920 A JP S55108920A JP 1572079 A JP1572079 A JP 1572079A JP 1572079 A JP1572079 A JP 1572079A JP S55108920 A JPS55108920 A JP S55108920A
Authority
JP
Japan
Prior art keywords
magnetic
saturation
magnetic flux
flux density
head chip
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
JP1572079A
Other languages
Japanese (ja)
Inventor
Shunichi Ko
Ikuo Shoji
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP1572079A priority Critical patent/JPS55108920A/en
Publication of JPS55108920A publication Critical patent/JPS55108920A/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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features

Landscapes

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

Abstract

PURPOSE:To make it easy to generate the magentic field at a recording time to reduce recording demagnetization by making the saturation magnetic flux density of a head chip in the front of the advance direction of a magnetic recording medium higher than that in this side of the magnetic gap. CONSTITUTION:Magnetic layers 61 and 62 having a saturation magnetic flux density higher than that of head chips 51 and 52 are interposed between cores in this side and the passage side to the advance direction of magnetic recording medium 41 in magnetic head chips 51 and 52 which are opposite to each other while interposing magnetic gap 53. By this structure, at a recording time, magnetic layer 61 is near to magnetic saturation, and permeability is lowered, and the leak magnetic flux from head chip 51 and magnetic layer 61 is increased to extend magnetic field distribution. On the other hand, the saturation magnetic flux density of magnetic layer 62 is high, and the leak magnetic flux head chip 52 and magnetic layer 62 is little, and magnetic field distribution is damped rapidly near magnetic gap 53.
JP1572079A 1979-02-14 1979-02-14 Magnetic head Pending JPS55108920A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1572079A JPS55108920A (en) 1979-02-14 1979-02-14 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1572079A JPS55108920A (en) 1979-02-14 1979-02-14 Magnetic head

Publications (1)

Publication Number Publication Date
JPS55108920A true JPS55108920A (en) 1980-08-21

Family

ID=11896588

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1572079A Pending JPS55108920A (en) 1979-02-14 1979-02-14 Magnetic head

Country Status (1)

Country Link
JP (1) JPS55108920A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0675485A1 (en) * 1994-03-31 1995-10-04 Matsushita Electric Industrial Co., Ltd. Magnetic recording and reproduction apparatus
KR19990061739A (en) * 1997-12-31 1999-07-26 윤종용 Thin film inductive head with improved lead / light performance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0675485A1 (en) * 1994-03-31 1995-10-04 Matsushita Electric Industrial Co., Ltd. Magnetic recording and reproduction apparatus
KR19990061739A (en) * 1997-12-31 1999-07-26 윤종용 Thin film inductive head with improved lead / light performance

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