JPS5764324A - Magnetic head and its manufacture - Google Patents

Magnetic head and its manufacture

Info

Publication number
JPS5764324A
JPS5764324A JP13881180A JP13881180A JPS5764324A JP S5764324 A JPS5764324 A JP S5764324A JP 13881180 A JP13881180 A JP 13881180A JP 13881180 A JP13881180 A JP 13881180A JP S5764324 A JPS5764324 A JP S5764324A
Authority
JP
Japan
Prior art keywords
soft magnetic
film
working
cores
executed
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
JP13881180A
Other languages
Japanese (ja)
Inventor
Mitsuharu Tamura
Katsuo Konishi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP13881180A priority Critical patent/JPS5764324A/en
Publication of JPS5764324A publication Critical patent/JPS5764324A/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

Landscapes

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

Abstract

PURPOSE:To obtain a high density recording head which is small in a record demagnetizing effect and also is capable of forming efficiently a magnetic field having a steep magnetic field incline, by constituting a magnetic path of a working gap of a soft magnetic film having a high saturated magnetic flux density, and exposing this film on the tape sliding surface. CONSTITUTION:Two core blocks are prepared by sticking ferrtie cores 17, 17' having high magnetic permeability, and nonmagnetic substances 20, 20' through adhering glass layers 24, 24'. This core block is stepped 25 for a soft magnetic film, soft magnetic films 18, 18' are formed by means of sputtering, and the spherical polishing work is executed so that the surface of the cores 17, 17' and the surface of the soft magnetic films 18, 18' can form the same surface. Subsequently, on the working gap forming part on the surface of the soft magnetic film 18', a nonmagnetic film 26 which becomes a gap spacer is formed by means of sputtering, and on the rear end part of one of the cores 17, 17', a notch 27 is provided. On the notch 27 and the rear end part of the working gap forming part, bonding glass 28 is placed and is made to adhere by heat treatment. After that, working of a tape sliding surface 21 is executed, and also working of width of a track is executed.
JP13881180A 1980-10-06 1980-10-06 Magnetic head and its manufacture Pending JPS5764324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13881180A JPS5764324A (en) 1980-10-06 1980-10-06 Magnetic head and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13881180A JPS5764324A (en) 1980-10-06 1980-10-06 Magnetic head and its manufacture

Publications (1)

Publication Number Publication Date
JPS5764324A true JPS5764324A (en) 1982-04-19

Family

ID=15230788

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13881180A Pending JPS5764324A (en) 1980-10-06 1980-10-06 Magnetic head and its manufacture

Country Status (1)

Country Link
JP (1) JPS5764324A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58220232A (en) * 1982-06-17 1983-12-21 Victor Co Of Japan Ltd Magnetic head and its production
EP0108074A1 (en) * 1982-05-04 1984-05-16 EASTMAN KODAK COMPANY (a New Jersey corporation) Magnetic head having highly saturable gap liner
JPS63119007A (en) * 1986-11-07 1988-05-23 Hitachi Maxell Ltd Magnetic head

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0108074A1 (en) * 1982-05-04 1984-05-16 EASTMAN KODAK COMPANY (a New Jersey corporation) Magnetic head having highly saturable gap liner
JPS58220232A (en) * 1982-06-17 1983-12-21 Victor Co Of Japan Ltd Magnetic head and its production
JPS63119007A (en) * 1986-11-07 1988-05-23 Hitachi Maxell Ltd Magnetic head

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