FR2558000B1 - MAGNETIC TRANSDUCER HEAD. - Google Patents

MAGNETIC TRANSDUCER HEAD.

Info

Publication number
FR2558000B1
FR2558000B1 FR8420082A FR8420082A FR2558000B1 FR 2558000 B1 FR2558000 B1 FR 2558000B1 FR 8420082 A FR8420082 A FR 8420082A FR 8420082 A FR8420082 A FR 8420082A FR 2558000 B1 FR2558000 B1 FR 2558000B1
Authority
FR
France
Prior art keywords
transducer head
magnetic transducer
magnetic
head
transducer
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.)
Expired - Lifetime
Application number
FR8420082A
Other languages
French (fr)
Other versions
FR2558000A1 (en
Inventor
Heikichi Sato Makoto Kubota Shoichi Kano Et Tatsuo Kumura Tomio Kobayashi
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.)
Sony Corp
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/en
Priority claimed from JP59078242A external-priority patent/JPS60223012A/en
Priority claimed from JP9975184A external-priority patent/JPS60243810A/en
Application filed by Sony Corp filed Critical Sony Corp
Publication of FR2558000A1 publication Critical patent/FR2558000A1/en
Application granted granted Critical
Publication of FR2558000B1 publication Critical patent/FR2558000B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B5/31—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
FR8420082A 1983-12-30 1984-12-28 MAGNETIC TRANSDUCER HEAD. Expired - Lifetime FR2558000B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP58250988A JPS60229210A (en) 1983-12-30 1983-12-30 Magnetic head
JP59078242A JPS60223012A (en) 1984-04-18 1984-04-18 Magnetic head
JP9975184A JPS60243810A (en) 1984-05-18 1984-05-18 Magnetic head

Publications (2)

Publication Number Publication Date
FR2558000A1 FR2558000A1 (en) 1985-07-12
FR2558000B1 true FR2558000B1 (en) 1994-02-25

Family

ID=27302650

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8420082A Expired - Lifetime FR2558000B1 (en) 1983-12-30 1984-12-28 MAGNETIC TRANSDUCER HEAD.

Country Status (8)

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

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0654527B2 (en) * 1984-11-26 1994-07-20 ソニー株式会社 Magnetic head
DE3634305A1 (en) * 1985-10-09 1987-04-16 Canon Kk MAGNETIC HEAD
DE3687217D1 (en) * 1985-11-29 1993-01-14 Grundig Emv METHOD FOR PRODUCING MAGNETIC HEADS.
JPH0654528B2 (en) * 1986-04-23 1994-07-20 株式会社日立製作所 Magnetic head
JPS62266712A (en) * 1986-05-14 1987-11-19 Mitsubishi Electric Corp Composite magnetic head
DE3769844D1 (en) * 1986-05-21 1991-06-13 Philips Nv MAGNETIC HEAD WITH CLOTHED CORE SURFACES.
JPS6370912A (en) * 1986-09-12 1988-03-31 Hitachi Ltd Glass for joining magnetic head gap
JPS63146202A (en) * 1986-12-09 1988-06-18 Canon Electronics Inc Magnetic head and its production
JP2513205B2 (en) * 1987-02-04 1996-07-03 ソニー株式会社 Composite magnetic head
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 (en) * 1961-04-07
US4219855A (en) * 1978-12-21 1980-08-26 International Business Machines Corporation Thin film magnetic head
JPS56124111A (en) * 1980-03-06 1981-09-29 Matsushita Electric Ind Co Ltd Production of magnetic head
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
KR850001445B1 (en) * 1981-03-10 1985-10-05 이우에 가오루 Magnetic head
JPS58155513A (en) * 1982-03-10 1983-09-16 Hitachi Ltd Composite magnetic head and its manufacture
JPS58175122A (en) * 1982-04-07 1983-10-14 Hitachi Ltd Compound magnetic head and its production
JPS598120A (en) * 1982-07-05 1984-01-17 Sharp Corp Production of magnetic head
JPS59207415A (en) * 1983-05-11 1984-11-24 Hitachi Ltd Compound magnetic head and its preparation

Also Published As

Publication number Publication date
NL194772C (en) 2003-02-04
NL194772B (en) 2002-10-01
AT393566B (en) 1991-11-11
GB2153581A (en) 1985-08-21
DE3447700A1 (en) 1985-07-25
DE3447700C2 (en) 1993-02-18
GB8432443D0 (en) 1985-02-06
FR2558000A1 (en) 1985-07-12
GB2153581B (en) 1988-05-25
AU3707484A (en) 1985-07-04
NL8403971A (en) 1985-07-16
CA1236212A (en) 1988-05-03
IT8449363A1 (en) 1986-06-27
IT1182707B (en) 1987-10-05
IT8449363A0 (en) 1984-12-27
ATA412784A (en) 1991-04-15
AU582736B2 (en) 1989-04-13

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