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JPS57103116A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS57103116A
JPS57103116A JP18004680A JP18004680A JPS57103116A JP S57103116 A JPS57103116 A JP S57103116A JP 18004680 A JP18004680 A JP 18004680A JP 18004680 A JP18004680 A JP 18004680A JP S57103116 A JPS57103116 A JP S57103116A
Authority
JP
Japan
Prior art keywords
constituting part
gap
magnetic
sectional area
saturated
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
JP18004680A
Other languages
Japanese (ja)
Inventor
Naoko Kawamura
Kietsu Iwabuchi
Eisuke Miyairi
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 JP18004680A priority Critical patent/JPS57103116A/en
Publication of JPS57103116A publication Critical patent/JPS57103116A/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

Landscapes

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

Abstract

PURPOSE:To obtain a magnetic head which performs large-current recording which hardly causing a magnetic core to be saturated magnetically. CONSTITUTION:A magnetic core 2 consists of a main magnetic path constituting part 7 and a gap constituting part 8. The main magnetic path constituting part 7 is made of a magnetic material, such as a ferrite material, which has high intrinsic resistance and high density of saturated magnetic flux, and does not decrease in sectional area even at the circumference of the gap constituting part 8. The gap constituting part 8 is made of a magnetic material, such as Fe-Al-Si alloy, which has higher density of saturated magnetic flux than the said ferrite material, and connected to the main magnetic path constituting part 7 with joint parts 9a and 9b to be sandwiched in the main magnetic path constituting part 7. The gap constituting part 8 decreases in sectional area gradually from the joint parts 9a and 8b to a gap 5, and has enough small sectional area at the part of the gap 5 to make magnetic flux influence on the outside efficiently.
JP18004680A 1980-12-19 1980-12-19 Magnetic head Pending JPS57103116A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18004680A JPS57103116A (en) 1980-12-19 1980-12-19 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18004680A JPS57103116A (en) 1980-12-19 1980-12-19 Magnetic head

Publications (1)

Publication Number Publication Date
JPS57103116A true JPS57103116A (en) 1982-06-26

Family

ID=16076533

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18004680A Pending JPS57103116A (en) 1980-12-19 1980-12-19 Magnetic head

Country Status (1)

Country Link
JP (1) JPS57103116A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4670807A (en) * 1984-01-17 1987-06-02 U.S. Philips Corporation Magnetic write head with smooth frequency response
JPS6329214U (en) * 1986-08-11 1988-02-26
FR2606920A1 (en) * 1986-11-18 1988-05-20 Europ Composants Electron MAGNETIC HEAD FOR MAGNETIC TRACKS WITH HIGH COERCITIVE FIELD AND MANUFACTURING METHOD

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4670807A (en) * 1984-01-17 1987-06-02 U.S. Philips Corporation Magnetic write head with smooth frequency response
JPS6329214U (en) * 1986-08-11 1988-02-26
FR2606920A1 (en) * 1986-11-18 1988-05-20 Europ Composants Electron MAGNETIC HEAD FOR MAGNETIC TRACKS WITH HIGH COERCITIVE FIELD AND MANUFACTURING METHOD
US5057958A (en) * 1986-11-18 1991-10-15 Compagnie Europeenne De Composants Electroniques Lcc Magnetic head for magnetic tracks with strong field

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