JPS5446540A - Production of magnetic head - Google Patents

Production of magnetic head

Info

Publication number
JPS5446540A
JPS5446540A JP11351877A JP11351877A JPS5446540A JP S5446540 A JPS5446540 A JP S5446540A JP 11351877 A JP11351877 A JP 11351877A JP 11351877 A JP11351877 A JP 11351877A JP S5446540 A JPS5446540 A JP S5446540A
Authority
JP
Japan
Prior art keywords
glass
ferrite
abutting surfaces
magnetic
blocks
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
JP11351877A
Other languages
Japanese (ja)
Inventor
Kenichi Fujimura
Tetsuo Hino
Tatsuo Kikuchi
Hyogo Hirohata
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP11351877A priority Critical patent/JPS5446540A/en
Publication of JPS5446540A publication Critical patent/JPS5446540A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Heads (AREA)

Abstract

PURPOSE: To produce a magnetic head of high density and performance by arranging comples blocks of firrite and glass in a manner to face at their convex glass and by effecting their joint such that their concave ferrite abutting surfaces have a preset gap length.
CONSTITUTION: A comb-shaped block 5 has its groove 10 molded with glass 11 so that the magnetic gap abutting surfaces 12 and the magnetic tape facing surfaces 13 are made smooth to have a finished mirror surface. The block 14 of ferrite and glass has its magnetic gap abutting surfaces 12 subjected to electrolytic etching treatment. If the electrolytic etching treatment is carried out in that way, the worked deteriorated layer duriing the mirror-surface finishing with a dismond paste such as a Lap Master can be eliminated. Since, in this instance, the glass 11 is left unetched, a step of 0.4 microns is formed between itself and an effective track forming ferrite surface 15. Two blocks 14 are prepared, and another block 18 is formed with a winding aperture 16 and a notch 17
COPYRIGHT: (C)1979,JPO&Japio
JP11351877A 1977-09-20 1977-09-20 Production of magnetic head Pending JPS5446540A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11351877A JPS5446540A (en) 1977-09-20 1977-09-20 Production of magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11351877A JPS5446540A (en) 1977-09-20 1977-09-20 Production of magnetic head

Publications (1)

Publication Number Publication Date
JPS5446540A true JPS5446540A (en) 1979-04-12

Family

ID=14614366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11351877A Pending JPS5446540A (en) 1977-09-20 1977-09-20 Production of magnetic head

Country Status (1)

Country Link
JP (1) JPS5446540A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4927041A (en) * 1972-07-09 1974-03-11
JPS5277714A (en) * 1975-12-24 1977-06-30 Ngk Insulators Ltd Method of producing magnetic head core

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4927041A (en) * 1972-07-09 1974-03-11
JPS5277714A (en) * 1975-12-24 1977-06-30 Ngk Insulators Ltd Method of producing magnetic head core

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