JPS57130224A - Magnetic head device - Google Patents

Magnetic head device

Info

Publication number
JPS57130224A
JPS57130224A JP1409781A JP1409781A JPS57130224A JP S57130224 A JPS57130224 A JP S57130224A JP 1409781 A JP1409781 A JP 1409781A JP 1409781 A JP1409781 A JP 1409781A JP S57130224 A JPS57130224 A JP S57130224A
Authority
JP
Japan
Prior art keywords
head elements
core
core material
common
joined
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
JP1409781A
Other languages
Japanese (ja)
Inventor
Satoru Watanabe
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP1409781A priority Critical patent/JPS57130224A/en
Publication of JPS57130224A publication Critical patent/JPS57130224A/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
    • G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track

Landscapes

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

Abstract

PURPOSE:To achieve the in-line arraying of magnetic gaps of respective head elements by forming one core of each head element by a core material which has a common gap faying surface and the other by a core material with magnetic permeability which corresponds to each gap length. CONSTITUTION:On one surface of a common core material 11, spacers 16 and 17 differing in thickness are formed and core materials 12, 13 and 14 are stacked on the common core material 11 and united through the fusion of glass, etc. A base 19 is joined with the rear end of the united block 18 and grooves 20 for separating respective head elements are formed in the core block 18; and head elements 1 for digital information data are formed at parts which correspond to the core material 12, and head elements 2 for analog signals are formed at parts which correspond to the core materials 13 and 14 while glass is charged in the grooves 20. The rear ends of the head elements 2 are cut together with the base 19, a back core 23 is joined to form the head elements 2 for analog signals, and digital information data head elements 1 are provided with winding 24.
JP1409781A 1981-02-02 1981-02-02 Magnetic head device Pending JPS57130224A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1409781A JPS57130224A (en) 1981-02-02 1981-02-02 Magnetic head device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1409781A JPS57130224A (en) 1981-02-02 1981-02-02 Magnetic head device

Publications (1)

Publication Number Publication Date
JPS57130224A true JPS57130224A (en) 1982-08-12

Family

ID=11851603

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1409781A Pending JPS57130224A (en) 1981-02-02 1981-02-02 Magnetic head device

Country Status (1)

Country Link
JP (1) JPS57130224A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0581265A2 (en) * 1992-07-29 1994-02-02 Sharp Kabushiki Kaisha Composite magnetic head
US5996376A (en) * 1997-04-11 1999-12-07 Digital Optics Corporation Methods of forming optical rods including three-dimensional patterns on end faces thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0581265A2 (en) * 1992-07-29 1994-02-02 Sharp Kabushiki Kaisha Composite magnetic head
EP0581265A3 (en) * 1992-07-29 1995-11-15 Sharp Kk Composite magnetic head
US5996376A (en) * 1997-04-11 1999-12-07 Digital Optics Corporation Methods of forming optical rods including three-dimensional patterns on end faces thereof

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