JPS5753818A - Composite magnetic head - Google Patents

Composite magnetic head

Info

Publication number
JPS5753818A
JPS5753818A JP12721580A JP12721580A JPS5753818A JP S5753818 A JPS5753818 A JP S5753818A JP 12721580 A JP12721580 A JP 12721580A JP 12721580 A JP12721580 A JP 12721580A JP S5753818 A JPS5753818 A JP S5753818A
Authority
JP
Japan
Prior art keywords
ferrite
magnetic head
single crystal
composite magnetic
gap
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
JP12721580A
Other languages
Japanese (ja)
Inventor
Takayuki Kumasaka
Sanehiro Kudo
Hideo Fujiwara
Takeshi Kimura
Yoshihiro Shiroishi
Takeo Yamashita
Nobuo Kobayashi
Sadazou Tamura
Hajime Shinohara
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.)
Hitachi Ltd
Proterial Ltd
Original Assignee
Hitachi Ltd
Hitachi Metals 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 Hitachi Ltd, Hitachi Metals Ltd filed Critical Hitachi Ltd
Priority to JP12721580A priority Critical patent/JPS5753818A/en
Publication of JPS5753818A publication Critical patent/JPS5753818A/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
    • G11B5/133—Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles

Landscapes

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

Abstract

PURPOSE:To improve the output/noise ratio, by using a single crystal Mn-Zn ferrite at the tip part of a composite magnetic head, selecting the crystalline azimuth so as to obtain the maximum output property and then adhering a magnetic material having a reduced level of rubbing noise at the rear magnetic circuit part. CONSTITUTION:Front magnetic circuit component parts 62 and 62' of a magnetic head are composed of e.g. two pieces of single ctystal Mn-Zn ferrite that oppose to each other via a working gap 64. The (110) face of at least one of the two pieces of the Mn-Zn ferrite is set substantially parallel to the surface on which a magnetic pole path is formed, and at the same time an angle of 15-40 deg. or 95-120 deg. is obtained for the angle theta formed by the <100> direction existing within the (110) face and the surface on which the gap 64 is formed. On the other hand, rear magnetic circuit parts 61 and 61' form a composite magnetic head containing the adhesion of a polycrystal Mn-Zn. The glass having the contraction factor lower than the single crystal Mn-Zn ferrite in case when the glass sticking temperature is reduced down to the room temperature is melted and stuck to the single crystal Mn-Zn ferrite surface near the side surface of the gap 64. Thus a composite magnetic head is obtained.
JP12721580A 1980-09-16 1980-09-16 Composite magnetic head Pending JPS5753818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12721580A JPS5753818A (en) 1980-09-16 1980-09-16 Composite magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12721580A JPS5753818A (en) 1980-09-16 1980-09-16 Composite magnetic head

Publications (1)

Publication Number Publication Date
JPS5753818A true JPS5753818A (en) 1982-03-31

Family

ID=14954569

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12721580A Pending JPS5753818A (en) 1980-09-16 1980-09-16 Composite magnetic head

Country Status (1)

Country Link
JP (1) JPS5753818A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6349606U (en) * 1986-09-18 1988-04-04
EP0628950A1 (en) * 1993-04-30 1994-12-14 Sony Corporation Magnetic head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6349606U (en) * 1986-09-18 1988-04-04
EP0628950A1 (en) * 1993-04-30 1994-12-14 Sony Corporation Magnetic head

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