JPS56169214A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS56169214A
JPS56169214A JP7267380A JP7267380A JPS56169214A JP S56169214 A JPS56169214 A JP S56169214A JP 7267380 A JP7267380 A JP 7267380A JP 7267380 A JP7267380 A JP 7267380A JP S56169214 A JPS56169214 A JP S56169214A
Authority
JP
Japan
Prior art keywords
magnetic
block
head
gap
roof
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
JP7267380A
Other languages
Japanese (ja)
Other versions
JPH0219522B2 (en
Inventor
Hiromichi Shibatani
Hikoyata Abe
Akio Nagura
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.)
Japan Broadcasting Corp
Original Assignee
Nippon Hoso Kyokai NHK
Japan Broadcasting 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 Nippon Hoso Kyokai NHK, Japan Broadcasting Corp filed Critical Nippon Hoso Kyokai NHK
Priority to JP7267380A priority Critical patent/JPS56169214A/en
Publication of JPS56169214A publication Critical patent/JPS56169214A/en
Publication of JPH0219522B2 publication Critical patent/JPH0219522B2/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
    • G11B5/1871—Shaping or contouring of the transducing or guiding surface

Abstract

PURPOSE:To obtain a magnetic head adequate for a magnetic recording medium with high coercive force by forming a core part, constituting a magnetic gap, by joining magnetic materials with high saturated magnetic flux density, and then by making the faying surface cross the butt surface of the magnetic gap slantingly. CONSTITUTION:A ferrite block worked in a roof shape with a succession of triangles above the winding window (w) of a head core is used, and to the roof-shaped part, a magnetic alloy (e.g. sendust) (m) is adhered. Then, the peak part of the roof-shaped magnetic alloy (m) is polished to form a butt surface (p) of a head gap, and a silicon oxide film (g) having about 0.2-0.5mum thickness is provided on the surface (p), thus forming a compound magnetic block F1. A compound magnetic block F2 similar with the block F1 except that the winding window (w) is provided, and said block F1 are butted mutually at the surface (p), and joined together by melt-sticking at a back gap B before cutting along the dotted lines. A coil (c) is wound by passing through the winding window (w) of the obtained individual compound magnetic head F to obtain a magnetic head.
JP7267380A 1980-06-02 1980-06-02 Magnetic head Granted JPS56169214A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7267380A JPS56169214A (en) 1980-06-02 1980-06-02 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7267380A JPS56169214A (en) 1980-06-02 1980-06-02 Magnetic head

Publications (2)

Publication Number Publication Date
JPS56169214A true JPS56169214A (en) 1981-12-25
JPH0219522B2 JPH0219522B2 (en) 1990-05-02

Family

ID=13496107

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7267380A Granted JPS56169214A (en) 1980-06-02 1980-06-02 Magnetic head

Country Status (1)

Country Link
JP (1) JPS56169214A (en)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58155513A (en) * 1982-03-10 1983-09-16 Hitachi Ltd Composite magnetic head and its manufacture
JPS5922213A (en) * 1982-07-27 1984-02-04 Nec Home Electronics Ltd Magnetic head
JPS59207415A (en) * 1983-05-11 1984-11-24 Hitachi Ltd Compound magnetic head and its preparation
JPS607606A (en) * 1983-06-13 1985-01-16 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Magnetic head for writing information into high coercive recording medium
JPS6032107A (en) * 1983-07-30 1985-02-19 Sony Corp Magnetic head
JPS6057512A (en) * 1983-09-07 1985-04-03 Hitachi Ltd Composite type magnetic head
EP0140977A1 (en) * 1983-04-04 1985-05-15 Hitachi, Ltd. Magnetic head and method of manufacture thereof
FR2558000A1 (en) * 1983-12-30 1985-07-12 Sony Corp MAGNETIC TRANSDUCER HEAD.
JPS60205808A (en) * 1984-03-29 1985-10-17 Sony Corp Magnetic head
JPS60223012A (en) * 1984-04-18 1985-11-07 Sony Corp Magnetic head
JPS60229210A (en) * 1983-12-30 1985-11-14 Sony Corp Magnetic head
JPS613313A (en) * 1984-06-18 1986-01-09 Sony Corp Magnetic head
JPS613311A (en) * 1984-06-18 1986-01-09 Sony Corp Magnetic head
JPS6139907A (en) * 1984-08-01 1986-02-26 Hitachi Maxell Ltd Magnetic head
JPS6199913A (en) * 1984-09-19 1986-05-19 Hitachi Maxell Ltd Magnetic head
JPS62140210A (en) * 1985-12-13 1987-06-23 Sanyo Electric Co Ltd Magnetic head
JPS62159306A (en) * 1985-12-30 1987-07-15 Sony Corp Magnetic head
US4701819A (en) * 1984-09-19 1987-10-20 Hitachi Maxell, Ltd. Magnetic head to effect high density magnetic recording
JPS63175211A (en) * 1987-01-16 1988-07-19 Seiko Epson Corp Composite magnetic head
US4788611A (en) * 1984-11-26 1988-11-29 Sony Corporation Magnetic transducer head
JPH01264610A (en) * 1989-03-08 1989-10-20 Hitachi Ltd Compound type magnetic head
JPH01264611A (en) * 1989-03-08 1989-10-20 Hitachi Ltd Manufacture of compound type magnetic head
US4972285A (en) * 1983-04-15 1990-11-20 Hitachi, Ltd. Amorphous magnetic alloy of Co-Nb-Zr system and magnetic head made from the same
JPH04356701A (en) * 1991-09-13 1992-12-10 Hitachi Ltd Composite type magnetic head

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5496013A (en) * 1978-01-13 1979-07-30 Matsushita Electric Ind Co Ltd Compound magnetic head

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5496013A (en) * 1978-01-13 1979-07-30 Matsushita Electric Ind Co Ltd Compound magnetic head

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58155513A (en) * 1982-03-10 1983-09-16 Hitachi Ltd Composite magnetic head and its manufacture
JPS5922213A (en) * 1982-07-27 1984-02-04 Nec Home Electronics Ltd Magnetic head
EP0140977A1 (en) * 1983-04-04 1985-05-15 Hitachi, Ltd. Magnetic head and method of manufacture thereof
US4774616A (en) * 1983-04-04 1988-09-27 Hitachi, Ltd. Magnetic head having an integrated recording and playback head and an erasure head
US4972285A (en) * 1983-04-15 1990-11-20 Hitachi, Ltd. Amorphous magnetic alloy of Co-Nb-Zr system and magnetic head made from the same
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
JPS607606A (en) * 1983-06-13 1985-01-16 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Magnetic head for writing information into high coercive recording medium
JPH0546009B2 (en) * 1983-07-30 1993-07-12 Sony Corp
JPS6032107A (en) * 1983-07-30 1985-02-19 Sony Corp Magnetic head
JPS6057512A (en) * 1983-09-07 1985-04-03 Hitachi Ltd Composite type magnetic head
JPH0546010B2 (en) * 1983-12-30 1993-07-12 Sony Corp
US4755899A (en) * 1983-12-30 1988-07-05 Sony Corporation Magnetic transducer head having an alloy thin film of high saturation magnetic flux density slantly provided with respect to an operating magnetic gap formed therein
JPS60229210A (en) * 1983-12-30 1985-11-14 Sony Corp Magnetic head
FR2558000A1 (en) * 1983-12-30 1985-07-12 Sony Corp MAGNETIC TRANSDUCER HEAD.
JPS60205808A (en) * 1984-03-29 1985-10-17 Sony Corp Magnetic head
JPS60223012A (en) * 1984-04-18 1985-11-07 Sony Corp Magnetic head
JPH0475564B2 (en) * 1984-04-18 1992-12-01 Sony Corp
JPH0475566B2 (en) * 1984-06-18 1992-12-01 Sony Corp
JPS613313A (en) * 1984-06-18 1986-01-09 Sony Corp Magnetic head
JPS613311A (en) * 1984-06-18 1986-01-09 Sony Corp Magnetic head
JPH0475565B2 (en) * 1984-06-18 1992-12-01 Sony Corp
JPH0546609B2 (en) * 1984-08-01 1993-07-14 Hitachi Maxell
JPS6139907A (en) * 1984-08-01 1986-02-26 Hitachi Maxell Ltd Magnetic head
US4701819A (en) * 1984-09-19 1987-10-20 Hitachi Maxell, Ltd. Magnetic head to effect high density magnetic recording
JPS6199913A (en) * 1984-09-19 1986-05-19 Hitachi Maxell Ltd Magnetic head
US4788611A (en) * 1984-11-26 1988-11-29 Sony Corporation Magnetic transducer head
JPH0439736B2 (en) * 1985-12-13 1992-06-30
JPS62140210A (en) * 1985-12-13 1987-06-23 Sanyo Electric Co Ltd Magnetic head
JPS62159306A (en) * 1985-12-30 1987-07-15 Sony Corp Magnetic head
JPS63175211A (en) * 1987-01-16 1988-07-19 Seiko Epson Corp Composite magnetic head
JPH0461404B2 (en) * 1989-03-08 1992-09-30 Hitachi Ltd
JPH0370283B2 (en) * 1989-03-08 1991-11-07 Hitachi Ltd
JPH01264611A (en) * 1989-03-08 1989-10-20 Hitachi Ltd Manufacture of compound type magnetic head
JPH01264610A (en) * 1989-03-08 1989-10-20 Hitachi Ltd Compound type magnetic head
JPH04356701A (en) * 1991-09-13 1992-12-10 Hitachi Ltd Composite type magnetic head

Also Published As

Publication number Publication date
JPH0219522B2 (en) 1990-05-02

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