JPS5552525A - Magnetic head and its manufacutre - Google Patents

Magnetic head and its manufacutre

Info

Publication number
JPS5552525A
JPS5552525A JP12260778A JP12260778A JPS5552525A JP S5552525 A JPS5552525 A JP S5552525A JP 12260778 A JP12260778 A JP 12260778A JP 12260778 A JP12260778 A JP 12260778A JP S5552525 A JPS5552525 A JP S5552525A
Authority
JP
Japan
Prior art keywords
magnetic head
core
case
magnetic
tape
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
JP12260778A
Other languages
Japanese (ja)
Inventor
Isao Oshima
Takao Ketori
Naotatsu Asahi
Oku Hanawa
Nobuo Suzuki
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 JP12260778A priority Critical patent/JPS5552525A/en
Publication of JPS5552525A publication Critical patent/JPS5552525A/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
    • G11B5/10—Structure or manufacture of housings or shields for heads

Landscapes

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

Abstract

PURPOSE:To obtain a magnetic head excellent in resistance to wear and shielding effect by roughening the tape-opposing surface of a magnetic shield case with its magnetic core sliding surface exposed from its window part and then by providing a ceramic layer on an oxide film formed on it. CONSTITUTION:A magnetic head has magnetic head core (made of ferrite) 1 incorporated in shield case (of Permalloy) 3 and the sliding surface of core 1 is formed being exposed from window part 4 of case 3. The tape-opposing surface of case 3 is roughened by blast-processing and then annealed to form oxide film 5 of less than apporoximately 1mu (preferably, 0.01-0.5mu) in thickness on the surface. next, ceramic layer 6 is formed on it by applying a mixture of alumina and titania, chromium oxide, etc.
JP12260778A 1978-10-06 1978-10-06 Magnetic head and its manufacutre Pending JPS5552525A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12260778A JPS5552525A (en) 1978-10-06 1978-10-06 Magnetic head and its manufacutre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12260778A JPS5552525A (en) 1978-10-06 1978-10-06 Magnetic head and its manufacutre

Publications (1)

Publication Number Publication Date
JPS5552525A true JPS5552525A (en) 1980-04-17

Family

ID=14840121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12260778A Pending JPS5552525A (en) 1978-10-06 1978-10-06 Magnetic head and its manufacutre

Country Status (1)

Country Link
JP (1) JPS5552525A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4913873U (en) * 1972-05-11 1974-02-05
JPS51109819A (en) * 1975-03-22 1976-09-29 Furukawa Electric Co Ltd TAIMAMOSEIJIKI HETSUDO
JPS51120940A (en) * 1975-04-17 1976-10-22 Nippon Musical Instruments Mfg Surface treatment of metals

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4913873U (en) * 1972-05-11 1974-02-05
JPS51109819A (en) * 1975-03-22 1976-09-29 Furukawa Electric Co Ltd TAIMAMOSEIJIKI HETSUDO
JPS51120940A (en) * 1975-04-17 1976-10-22 Nippon Musical Instruments Mfg Surface treatment of metals

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