IT1182707B - Testa magnetica trasduttrice e metodo per la sua produzione - Google Patents

Testa magnetica trasduttrice e metodo per la sua produzione

Info

Publication number
IT1182707B
IT1182707B IT49363/84A IT4936384A IT1182707B IT 1182707 B IT1182707 B IT 1182707B IT 49363/84 A IT49363/84 A IT 49363/84A IT 4936384 A IT4936384 A IT 4936384A IT 1182707 B IT1182707 B IT 1182707B
Authority
IT
Italy
Prior art keywords
production
magnetic head
transducer magnetic
transducer
head
Prior art date
Application number
IT49363/84A
Other languages
English (en)
Italian (it)
Other versions
IT8449363A0 (it
IT8449363A1 (it
Inventor
Tomio Kobayashi
Heikichi Sato
Makoto Kubota
Shoichi Kano
Tatsuo Kumura
Kazushi Yamauchi
Yoshimi Takahashi
Junichi Saito
Seiki Konno
Osamu Maniwa
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
Priority claimed from JP58250988A external-priority patent/JPS60229210A/ja
Priority claimed from JP59078242A external-priority patent/JPS60223012A/ja
Priority claimed from JP9975184A external-priority patent/JPS60243810A/ja
Application filed by Sony Corp filed Critical Sony Corp
Publication of IT8449363A0 publication Critical patent/IT8449363A0/it
Publication of IT8449363A1 publication Critical patent/IT8449363A1/it
Application granted granted Critical
Publication of IT1182707B publication Critical patent/IT1182707B/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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3163—Fabrication methods or processes specially adapted for a particular head structure, e.g. using base layers for electroplating, using functional layers for masking, using energy or particle beams for shaping the structure or modifying the properties of the basic layers
    • 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
    • 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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • 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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/3116—Shaping of layers, poles or gaps for improving the form of the electrical signal transduced, e.g. for shielding, contour effect, equalizing, side flux fringing, cross talk reduction between heads or between heads and information tracks

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
IT49363/84A 1983-12-30 1984-12-27 Testa magnetica trasduttrice e metodo per la sua produzione IT1182707B (it)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP58250988A JPS60229210A (ja) 1983-12-30 1983-12-30 磁気ヘツド
JP59078242A JPS60223012A (ja) 1984-04-18 1984-04-18 磁気ヘツド
JP9975184A JPS60243810A (ja) 1984-05-18 1984-05-18 磁気ヘツド

Publications (3)

Publication Number Publication Date
IT8449363A0 IT8449363A0 (it) 1984-12-27
IT8449363A1 IT8449363A1 (it) 1986-06-27
IT1182707B true IT1182707B (it) 1987-10-05

Family

ID=27302650

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49363/84A IT1182707B (it) 1983-12-30 1984-12-27 Testa magnetica trasduttrice e metodo per la sua produzione

Country Status (8)

Country Link
AT (1) AT393566B (nl)
AU (1) AU582736B2 (nl)
CA (1) CA1236212A (nl)
DE (1) DE3447700A1 (nl)
FR (1) FR2558000B1 (nl)
GB (1) GB2153581B (nl)
IT (1) IT1182707B (nl)
NL (1) NL194772C (nl)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0654527B2 (ja) * 1984-11-26 1994-07-20 ソニー株式会社 磁気ヘツド
DE3634305A1 (de) * 1985-10-09 1987-04-16 Canon Kk Magnetkopf
EP0223933B1 (de) * 1985-11-29 1992-12-02 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. Verfahren zur Herstellung von Magnetköpfen
JPH0654528B2 (ja) * 1986-04-23 1994-07-20 株式会社日立製作所 磁気ヘツド
JPS62266712A (ja) * 1986-05-14 1987-11-19 Mitsubishi Electric Corp 複合型磁気ヘツド
DE3769844D1 (de) * 1986-05-21 1991-06-13 Philips Nv Magnetkopf mit gekleideten kernflaechen.
JPS6370912A (ja) * 1986-09-12 1988-03-31 Hitachi Ltd 磁気ヘツドギヤツプ接合用ガラス
JPS63146202A (ja) * 1986-12-09 1988-06-18 Canon Electronics Inc 磁気ヘツド及びその製造方法
JP2513205B2 (ja) * 1987-02-04 1996-07-03 ソニー株式会社 複合磁気ヘツド
GB2268309B (en) * 1992-06-16 1996-09-11 Samsung Electro Mech Composite magnetic head

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL263324A (nl) * 1961-04-07
US4219855A (en) * 1978-12-21 1980-08-26 International Business Machines Corporation Thin film magnetic head
JPS56124112A (en) * 1980-03-06 1981-09-29 Matsushita Electric Ind Co Ltd Magnetic head
JPS56124111A (en) * 1980-03-06 1981-09-29 Matsushita Electric Ind Co Ltd Production of magnetic head
JPS56169214A (en) * 1980-06-02 1981-12-25 Nippon Hoso Kyokai <Nhk> Magnetic head
KR850001445B1 (ko) * 1981-03-10 1985-10-05 이우에 가오루 자기헤드
JPS58155513A (ja) * 1982-03-10 1983-09-16 Hitachi Ltd 複合型磁気ヘツドおよびその製造方法
JPS58175122A (ja) * 1982-04-07 1983-10-14 Hitachi Ltd 磁気ヘッドおよびその製造方法
JPS598120A (ja) * 1982-07-05 1984-01-17 Sharp Corp 磁気ヘツドの製造方法
JPS59207415A (ja) * 1983-05-11 1984-11-24 Hitachi Ltd 複合型磁気ヘツドおよびその製造方法

Also Published As

Publication number Publication date
IT8449363A0 (it) 1984-12-27
ATA412784A (de) 1991-04-15
NL8403971A (nl) 1985-07-16
DE3447700C2 (nl) 1993-02-18
AU582736B2 (en) 1989-04-13
FR2558000A1 (fr) 1985-07-12
AT393566B (de) 1991-11-11
CA1236212A (en) 1988-05-03
NL194772C (nl) 2003-02-04
AU3707484A (en) 1985-07-04
GB2153581A (en) 1985-08-21
IT8449363A1 (it) 1986-06-27
NL194772B (nl) 2002-10-01
FR2558000B1 (fr) 1994-02-25
GB8432443D0 (en) 1985-02-06
GB2153581B (en) 1988-05-25
DE3447700A1 (de) 1985-07-25

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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: 19961223