IT1200147B - Testina magnetica trasduttrice e metodo per la sua fabbricazione - Google Patents

Testina magnetica trasduttrice e metodo per la sua fabbricazione

Info

Publication number
IT1200147B
IT1200147B IT48826/85A IT4882685A IT1200147B IT 1200147 B IT1200147 B IT 1200147B IT 48826/85 A IT48826/85 A IT 48826/85A IT 4882685 A IT4882685 A IT 4882685A IT 1200147 B IT1200147 B IT 1200147B
Authority
IT
Italy
Prior art keywords
manufacture
magnetic head
transducer magnetic
transducer
head
Prior art date
Application number
IT48826/85A
Other languages
English (en)
Other versions
IT8548826A0 (it
Inventor
Osamu Maniwa
Tomio Kobayashi
Shoichi Kano
Seiki Konno
Heikichi Sato
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
Publication of IT8548826A0 publication Critical patent/IT8548826A0/it
Application granted granted Critical
Publication of IT1200147B publication Critical patent/IT1200147B/it

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
    • G11B5/1875—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers
    • G11B5/1877—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers including at least one magnetic thin film
    • G11B5/1878—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers including at least one magnetic thin film disposed immediately adjacent to the transducing gap, e.g. "Metal-In-Gap" structure
    • 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
    • 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
    • G11B5/1872—Shaping or contouring of the transducing or guiding surface for improving the form of the electrical signal transduced, e.g. compensation of "contour effect"
    • G11B5/1874—Shaping or contouring of the transducing or guiding surface for improving the form of the electrical signal transduced, e.g. compensation of "contour effect" specially adapted for composite pole pieces, e.g. for avoiding "pseudo-gap"

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
IT48826/85A 1984-11-26 1985-11-26 Testina magnetica trasduttrice e metodo per la sua fabbricazione IT1200147B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59249127A JPH0654527B2 (ja) 1984-11-26 1984-11-26 磁気ヘツド

Publications (2)

Publication Number Publication Date
IT8548826A0 IT8548826A0 (it) 1985-11-26
IT1200147B true IT1200147B (it) 1989-01-05

Family

ID=17188333

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48826/85A IT1200147B (it) 1984-11-26 1985-11-26 Testina magnetica trasduttrice e metodo per la sua fabbricazione

Country Status (12)

Country Link
US (1) US4788611A (it)
JP (1) JPH0654527B2 (it)
KR (1) KR940003642B1 (it)
CN (1) CN1009136B (it)
AT (1) AT393568B (it)
AU (1) AU583320B2 (it)
CA (1) CA1254299A (it)
DE (1) DE3541762C2 (it)
FR (1) FR2573902B1 (it)
GB (1) GB2167597B (it)
IT (1) IT1200147B (it)
NL (1) NL194175C (it)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63257904A (ja) * 1987-04-15 1988-10-25 Pioneer Electronic Corp 磁気ヘツドの製造方法
US5170301A (en) * 1988-08-03 1992-12-08 Matsushita Electric Industrial Co., Ltd. Magnetic head having core parts joined by low-melting point crystallized glass with composite gap
JPH02168404A (ja) * 1988-09-02 1990-06-28 Sanyo Electric Co Ltd 磁気ヘッド
JPH0778851B2 (ja) * 1989-09-13 1995-08-23 三洋電機株式会社 磁気ヘッドの製造方法
DE4030326C2 (de) * 1989-09-27 1995-01-12 Mitsubishi Electric Corp Gerät zur magnetischen Aufzeichnung und Wiedergabe mit mehreren Verbund-Magnetköpfen und Verfahren zur Herstellung eines bei diesem Gerät verwendbaren Verbund-Magnetkopfes
US5289329A (en) * 1989-09-27 1994-02-22 Mitsubishi Denki Kabushiki Kaisha Composite type magnetic head and magnetic recording/playback apparatus adopting the same
JPH0624045B2 (ja) * 1989-10-03 1994-03-30 日本碍子株式会社 複合型磁気ヘッド用コアの製造方法
US5086360A (en) * 1990-09-06 1992-02-04 Applied Magnetics Corporation Constant flying height slider
US5289330A (en) * 1991-10-02 1994-02-22 Alliant Techsystems Inc. Helical read/write head having a cross-cut groove
KR0130192B1 (ko) * 1992-01-16 1998-04-17 가다오까 마사다까 자기헤드 및 그 제조방법
JPH08185606A (ja) * 1994-12-28 1996-07-16 Mitsumi Electric Co Ltd 磁気ヘッド及びその製造方法
US6010583A (en) * 1997-09-09 2000-01-04 Sony Corporation Method of making unreacted metal/aluminum sputter target
JP2002050005A (ja) * 2000-07-31 2002-02-15 Sony Corp 磁気ヘッド
FR2834375B1 (fr) * 2001-12-28 2005-05-20 Commissariat Energie Atomique Tete magnetique integree pour l'enregistrement magnetique et procede de fabrication de cette tete magnetique
JP6122494B2 (ja) * 2013-06-05 2017-04-26 日立オムロンターミナルソリューションズ株式会社 磁気ヘッド、磁気記録媒体処理装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL263324A (it) * 1961-04-07
GB1591237A (en) * 1976-12-13 1981-06-17 Texas Instruments Inc Magnetic recording/reproducing head
JPS55117723A (en) * 1979-02-28 1980-09-10 Sony Corp Magnetic head
WO1980002769A1 (en) * 1979-06-01 1980-12-11 New World Computer Co Inc Isolated multiple core magnetic transducer assembly
JPS56124112A (en) * 1980-03-06 1981-09-29 Matsushita Electric Ind Co Ltd Magnetic head
JPS56169214A (en) * 1980-06-02 1981-12-25 Nippon Hoso Kyokai <Nhk> Magnetic head
NL8003518A (nl) * 1980-06-18 1982-01-18 Philips Nv Magneetkop, werkwijze voor het vervaardigen van een magneetkop.
JPS5715217A (en) * 1980-06-30 1982-01-26 Hitachi Ltd Magnetic head and its manufacture
JPS57189325A (en) * 1981-05-18 1982-11-20 Toshiba Corp Composite magnetic head
JPS57189323A (en) * 1981-05-18 1982-11-20 Hitachi Ltd Composite magnetic head and its manufacture
JPS58122610A (ja) * 1982-01-16 1983-07-21 Sanyo Electric Co Ltd 磁気ヘツド
JPS58175122A (ja) * 1982-04-07 1983-10-14 Hitachi Ltd 磁気ヘッドおよびその製造方法
JPS59142716A (ja) * 1983-02-04 1984-08-16 Hitachi Ltd 磁気ヘツドおよびその製造方法
JPS60606A (ja) * 1983-06-15 1985-01-05 Hitachi Ltd 複合型磁気ヘツドおよびその製造方法
CA1236212A (en) * 1983-12-30 1988-05-03 Heikichi Sato Magnetic transducer head with slanted thin film
US4819113A (en) * 1984-03-29 1989-04-04 Sony Corporation Magnetic transducer head with inclined magnetic gap

Also Published As

Publication number Publication date
JPS61129716A (ja) 1986-06-17
FR2573902B1 (fr) 1992-08-14
GB2167597B (en) 1988-09-14
KR860004390A (ko) 1986-06-20
FR2573902A1 (fr) 1986-05-30
CN85109351A (zh) 1986-08-13
CA1254299A (en) 1989-05-16
US4788611A (en) 1988-11-29
NL194175B (nl) 2001-04-02
JPH0654527B2 (ja) 1994-07-20
NL8503246A (nl) 1986-06-16
ATA343485A (de) 1991-04-15
GB8529056D0 (en) 1986-01-02
AU5003785A (en) 1986-06-05
AU583320B2 (en) 1989-04-27
KR940003642B1 (ko) 1994-04-25
AT393568B (de) 1991-11-11
DE3541762C2 (de) 1994-09-01
NL194175C (nl) 2001-08-03
DE3541762A1 (de) 1986-05-28
IT8548826A0 (it) 1985-11-26
CN1009136B (zh) 1990-08-08
GB2167597A (en) 1986-05-29

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961120