JPS56124111A - Production of magnetic head - Google Patents

Production of magnetic head

Info

Publication number
JPS56124111A
JPS56124111A JP2892380A JP2892380A JPS56124111A JP S56124111 A JPS56124111 A JP S56124111A JP 2892380 A JP2892380 A JP 2892380A JP 2892380 A JP2892380 A JP 2892380A JP S56124111 A JPS56124111 A JP S56124111A
Authority
JP
Japan
Prior art keywords
notches
substance
charged
magnetic
nonmagnetic substance
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
JP2892380A
Other languages
Japanese (ja)
Other versions
JPS6341126B2 (en
Inventor
Yoshiji Nakagawa
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 JP2892380A priority Critical patent/JPS56124111A/en
Publication of JPS56124111A publication Critical patent/JPS56124111A/en
Publication of JPS6341126B2 publication Critical patent/JPS6341126B2/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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features

Landscapes

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

Abstract

PURPOSE:To produce the magnetic head of a narrow track width superior in recording and reproducing characteristics by the thin film forming technique. CONSTITUTION:Plural first notches 12 are provided at one edge part in the longitudinal direction of magnetic substance block 11 of a high magnetic permeability such as sendust, and nonmagnetic substance 13 is charged in these notches 12, and the excess nonmagnetic substance material is removed by grinding to form nonmagnetic substance charged parts 17. The second notches 14 are provided closely to these parts 17 so that parts 17 are removed partially. Metallic films 20 consisting of magentic substance having a high saturation magnetic flux density which constitutes a track width part are formed on the inside wall of notches 14 by sputtering. Then, the second nonmagnetic substance 21 is charged in notches 14, and the undesired magnetic substance film caused to adhere to the gap forming face side is removed by grinding, and groove 22 for the winding window is provided, and the gap forming face is polished, and the gap part material is caused to adhere to it, and a pair of core blocks 11 are so joined that end faces of respective said metallic films 20, 20 are butted to each other, and then, they are so cut that a required nonmagnetic substance charged part is left in both sides of the track corresponding part of the magnetic substance film.
JP2892380A 1980-03-06 1980-03-06 Production of magnetic head Granted JPS56124111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2892380A JPS56124111A (en) 1980-03-06 1980-03-06 Production of magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2892380A JPS56124111A (en) 1980-03-06 1980-03-06 Production of magnetic head

Publications (2)

Publication Number Publication Date
JPS56124111A true JPS56124111A (en) 1981-09-29
JPS6341126B2 JPS6341126B2 (en) 1988-08-16

Family

ID=12261914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2892380A Granted JPS56124111A (en) 1980-03-06 1980-03-06 Production of magnetic head

Country Status (1)

Country Link
JP (1) JPS56124111A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56148717A (en) * 1980-04-17 1981-11-18 Sanyo Electric Co Ltd Magnetic recording and reproducing device
JPS59127213A (en) * 1983-01-11 1984-07-23 Seiko Epson Corp Magnetic head
JPS59207415A (en) * 1983-05-11 1984-11-24 Hitachi Ltd Compound magnetic head and its preparation
FR2558000A1 (en) * 1983-12-30 1985-07-12 Sony Corp MAGNETIC TRANSDUCER HEAD.
FR2562304A1 (en) * 1984-03-29 1985-10-04 Sony Corp MAGNETIC TRANSDUCER HEAD
JPS61126614A (en) * 1984-11-21 1986-06-14 Victor Co Of Japan Ltd Magnetic head and its production
JPS62141613A (en) * 1985-12-17 1987-06-25 Matsushita Electric Ind Co Ltd Magnetic head
JPS62185210A (en) * 1986-02-12 1987-08-13 Sony Corp Manufacture of magnetic head
US4701819A (en) * 1984-09-19 1987-10-20 Hitachi Maxell, Ltd. Magnetic head to effect high density magnetic recording
JPS6313107A (en) * 1986-07-03 1988-01-20 Canon Electronics Inc Magnetic head

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56148717A (en) * 1980-04-17 1981-11-18 Sanyo Electric Co Ltd Magnetic recording and reproducing device
JPS59127213A (en) * 1983-01-11 1984-07-23 Seiko Epson Corp Magnetic head
JPH0477369B2 (en) * 1983-01-11 1992-12-08 Seiko Epson Corp
JPS59207415A (en) * 1983-05-11 1984-11-24 Hitachi Ltd Compound magnetic head and its preparation
JPH0477370B2 (en) * 1983-05-11 1992-12-08 Hitachi Ltd
FR2558000A1 (en) * 1983-12-30 1985-07-12 Sony Corp MAGNETIC TRANSDUCER HEAD.
FR2562304A1 (en) * 1984-03-29 1985-10-04 Sony Corp MAGNETIC TRANSDUCER HEAD
US4701819A (en) * 1984-09-19 1987-10-20 Hitachi Maxell, Ltd. Magnetic head to effect high density magnetic recording
US4682256A (en) * 1984-11-01 1987-07-21 Victor Company Of Japan, Ltd. Method of manufacturing a composite type magnetic head
JPS61126614A (en) * 1984-11-21 1986-06-14 Victor Co Of Japan Ltd Magnetic head and its production
JPS62141613A (en) * 1985-12-17 1987-06-25 Matsushita Electric Ind Co Ltd Magnetic head
JPS62185210A (en) * 1986-02-12 1987-08-13 Sony Corp Manufacture of magnetic head
JPS6313107A (en) * 1986-07-03 1988-01-20 Canon Electronics Inc Magnetic head

Also Published As

Publication number Publication date
JPS6341126B2 (en) 1988-08-16

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