JPS57162118A - Manufacture of magnetic head - Google Patents

Manufacture of magnetic head

Info

Publication number
JPS57162118A
JPS57162118A JP4707081A JP4707081A JPS57162118A JP S57162118 A JPS57162118 A JP S57162118A JP 4707081 A JP4707081 A JP 4707081A JP 4707081 A JP4707081 A JP 4707081A JP S57162118 A JPS57162118 A JP S57162118A
Authority
JP
Japan
Prior art keywords
gap
magnetic head
plating
amorphous ferromagnetic
couple
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
JP4707081A
Other languages
Japanese (ja)
Inventor
Tsutomu Iikawa
Katsuhide Natori
Isao Kawamura
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 JP4707081A priority Critical patent/JPS57162118A/en
Publication of JPS57162118A publication Critical patent/JPS57162118A/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

Abstract

PURPOSE:To easily obtain enough uniform film thickness for necessary magnetic flux density over a wide area, by sticking an amorphous ferromagnetic material, having high magnetic flux density, to the gap confronting surface of a magnetic head core by plating. CONSTITUTION:A coupld of surfaces as the confronting surfaces of a gap 2 and a couple of back gap surfaces 3 of a head core consisting of a couple of crystalline ferromagnetic oxide materials 1 are plated with amorphous ferromagnetic alloy 4, thus constituting a magnetic head. In this case, a plating solution consists of 40-70g/l iron sulfamate, 30-50g/l ammonium sulfamate, 5-10g/l urea, and added boric acid enough to obtain about 2-3pH, and fed current density is 50-200mA/cm<2>, thereby obtaining an amorphous ferromagnetic film which has necessary characteristics. On the plating film, a nonmagnetic material 5 is formed by using, e.g. low-melting-point glass to obtain a gap and a back gap 3 for reading and writing.
JP4707081A 1981-03-30 1981-03-30 Manufacture of magnetic head Pending JPS57162118A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4707081A JPS57162118A (en) 1981-03-30 1981-03-30 Manufacture of magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4707081A JPS57162118A (en) 1981-03-30 1981-03-30 Manufacture of magnetic head

Publications (1)

Publication Number Publication Date
JPS57162118A true JPS57162118A (en) 1982-10-05

Family

ID=12764898

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4707081A Pending JPS57162118A (en) 1981-03-30 1981-03-30 Manufacture of magnetic head

Country Status (1)

Country Link
JP (1) JPS57162118A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59127213A (en) * 1983-01-11 1984-07-23 Seiko Epson Corp Magnetic head
JPS63229609A (en) * 1987-03-19 1988-09-26 Matsushita Electric Ind Co Ltd Both sides type magnetic head
EP0421726A2 (en) * 1989-10-03 1991-04-10 Ngk Insulators, Ltd. Method of producing composite type, metal-in-gap magnetic head core

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59127213A (en) * 1983-01-11 1984-07-23 Seiko Epson Corp Magnetic head
JPH0477369B2 (en) * 1983-01-11 1992-12-08 Seiko Epson Corp
JPS63229609A (en) * 1987-03-19 1988-09-26 Matsushita Electric Ind Co Ltd Both sides type magnetic head
EP0421726A2 (en) * 1989-10-03 1991-04-10 Ngk Insulators, Ltd. Method of producing composite type, metal-in-gap magnetic head core

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