JPS57138017A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS57138017A
JPS57138017A JP2315981A JP2315981A JPS57138017A JP S57138017 A JPS57138017 A JP S57138017A JP 2315981 A JP2315981 A JP 2315981A JP 2315981 A JP2315981 A JP 2315981A JP S57138017 A JPS57138017 A JP S57138017A
Authority
JP
Japan
Prior art keywords
halves
welding
butt
beam welding
magnetic permeability
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.)
Granted
Application number
JP2315981A
Other languages
Japanese (ja)
Other versions
JPH0239011B2 (en
Inventor
Bunichi Komatsu
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.)
Canon Electronics Inc
Original Assignee
Canon Electronics Inc
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 Canon Electronics Inc filed Critical Canon Electronics Inc
Priority to JP2315981A priority Critical patent/JPS57138017A/en
Publication of JPS57138017A publication Critical patent/JPS57138017A/en
Publication of JPH0239011B2 publication Critical patent/JPH0239011B2/ja
Granted 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)
  • Magnetic Heads (AREA)

Abstract

PURPOSE:To achieve excellent recording and reproducing characteristics, by fixing at least a part of butt part of core halves or interrupting plate halves made of a high magnetic permeability substance with beam welding. CONSTITUTION:A butt plane of interrupting plate halves 8, 8 being one of butt planes of head halves 10, 10 are detached for a prescribed gap to form welding parts A and B by beam welding such as laser or electron beam. Since the halves 8, 8 consist of a high magnetic permeability substance such as permalloy and sendust, sure welding can be made by beam welding and no shift of position and deformation due to secular change can be caused.
JP2315981A 1981-02-20 1981-02-20 Magnetic head Granted JPS57138017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2315981A JPS57138017A (en) 1981-02-20 1981-02-20 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2315981A JPS57138017A (en) 1981-02-20 1981-02-20 Magnetic head

Publications (2)

Publication Number Publication Date
JPS57138017A true JPS57138017A (en) 1982-08-26
JPH0239011B2 JPH0239011B2 (en) 1990-09-03

Family

ID=12102815

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2315981A Granted JPS57138017A (en) 1981-02-20 1981-02-20 Magnetic head

Country Status (1)

Country Link
JP (1) JPS57138017A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0481206U (en) * 1990-11-26 1992-07-15

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57122018U (en) * 1981-01-21 1982-07-29

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57122018U (en) * 1981-01-21 1982-07-29

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0481206U (en) * 1990-11-26 1992-07-15

Also Published As

Publication number Publication date
JPH0239011B2 (en) 1990-09-03

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