KR930000067B1 - 자기헤드 - Google Patents

자기헤드 Download PDF

Info

Publication number
KR930000067B1
KR930000067B1 KR1019850000415A KR850000415A KR930000067B1 KR 930000067 B1 KR930000067 B1 KR 930000067B1 KR 1019850000415 A KR1019850000415 A KR 1019850000415A KR 850000415 A KR850000415 A KR 850000415A KR 930000067 B1 KR930000067 B1 KR 930000067B1
Authority
KR
South Korea
Prior art keywords
magnetic
metal thin
thin film
ferromagnetic metal
magnetic head
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
KR1019850000415A
Other languages
English (en)
Korean (ko)
Other versions
KR850007508A (ko
Inventor
도미오 고바야시
헤이끼찌 사또
쇼 이찌 가노
세이끼 곤노
오사무 마니와
Original Assignee
소니 가부시끼 가이샤
오오가 노리오
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 소니 가부시끼 가이샤, 오오가 노리오 filed Critical 소니 가부시끼 가이샤
Publication of KR850007508A publication Critical patent/KR850007508A/ko
Application granted granted Critical
Publication of KR930000067B1 publication Critical patent/KR930000067B1/ko
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/31Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109Details
    • G11B5/3116Shaping 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/187Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/1871Shaping or contouring of the transducing or guiding surface
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/31Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3163Fabrication 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
KR1019850000415A 1984-04-18 1985-01-23 자기헤드 Expired - Lifetime KR930000067B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP78242 1984-04-18
JP59078242A JPS60223012A (ja) 1984-04-18 1984-04-18 磁気ヘツド

Publications (2)

Publication Number Publication Date
KR850007508A KR850007508A (ko) 1985-12-04
KR930000067B1 true KR930000067B1 (ko) 1993-01-08

Family

ID=13656549

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850000415A Expired - Lifetime KR930000067B1 (ko) 1984-04-18 1985-01-23 자기헤드

Country Status (2)

Country Link
JP (1) JPS60223012A (enrdf_load_stackoverflow)
KR (1) KR930000067B1 (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0690776B2 (ja) * 1985-08-12 1994-11-14 株式会社日立製作所 磁気ヘツド
JPH0770023B2 (ja) * 1985-11-26 1995-07-31 ソニー株式会社 磁気ヘツド
JPS62145516A (ja) * 1985-12-19 1987-06-29 Sony Corp 磁気ヘツド
JPS62145522A (ja) * 1985-12-20 1987-06-29 Hitachi Ltd 薄膜磁気ヘツド
JPS62298908A (ja) * 1986-06-18 1987-12-26 Sankyo Seiki Mfg Co Ltd 磁気ヘツド

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5623A (en) * 1979-06-15 1981-01-06 Hitachi Ltd Magnetic head and its manufacture
JPS56169214A (en) * 1980-06-02 1981-12-25 Nippon Hoso Kyokai <Nhk> Magnetic head
JPS58143428A (ja) * 1982-02-19 1983-08-26 Sanyo Electric Co Ltd 磁気ヘツド
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

Also Published As

Publication number Publication date
KR850007508A (ko) 1985-12-04
JPH0475564B2 (enrdf_load_stackoverflow) 1992-12-01
JPS60223012A (ja) 1985-11-07

Similar Documents

Publication Publication Date Title
JPH0546010B2 (enrdf_load_stackoverflow)
KR930000067B1 (ko) 자기헤드
KR960005114B1 (ko) 자기 헤드
JPH0546011B2 (enrdf_load_stackoverflow)
KR940005553B1 (ko) 자기헤드 및 그 제조방법
KR0152601B1 (ko) 복합형 자기헤드 코아 및 그 제조방법
KR0155468B1 (ko) 자기헤드 및 그 제조방법
JPH0548244Y2 (enrdf_load_stackoverflow)
JPS59203210A (ja) 磁気コアおよびその製造方法
JPH0546009B2 (enrdf_load_stackoverflow)
JPH0565924B2 (enrdf_load_stackoverflow)
JPS6238514A (ja) 磁気ヘツド
JPH0354704A (ja) 磁気ヘッドとその製造方法
JPH0648527B2 (ja) 磁気ヘツドの製造方法
JPH0585962B2 (enrdf_load_stackoverflow)
JPH0684137A (ja) 薄膜磁気ヘッド
JPH0770023B2 (ja) 磁気ヘツド
JPS6251009A (ja) 磁気コアおよびその製造方法
JPH05143917A (ja) 磁気ヘツド
JPH04229407A (ja) 磁気ヘッド
JPH06282809A (ja) 磁気ヘッド
JPS62132206A (ja) 磁気消去ヘツド
JPS63288407A (ja) 磁気ヘツドの製造方法
JPH0658723B2 (ja) 磁気ヘツドの製造方法
JPH05114113A (ja) 磁気ヘツド及びその製造方法

Legal Events

Date Code Title Description
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19850123

PG1501 Laying open of application
A201 Request for examination
PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 19900119

Comment text: Request for Examination of Application

Patent event code: PA02011R01I

Patent event date: 19850123

Comment text: Patent Application

G160 Decision to publish patent application
PG1605 Publication of application before grant of patent

Comment text: Decision on Publication of Application

Patent event code: PG16051S01I

Patent event date: 19921201

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

Patent event code: PE07011S01D

Comment text: Decision to Grant Registration

Patent event date: 19930329

GRNT Written decision to grant
PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 19930408

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 19930408

End annual number: 3

Start annual number: 1

PR1001 Payment of annual fee

Payment date: 19951229

Start annual number: 4

End annual number: 4

PR1001 Payment of annual fee

Payment date: 19970108

Start annual number: 5

End annual number: 5

PR1001 Payment of annual fee

Payment date: 19971227

Start annual number: 6

End annual number: 6

PR1001 Payment of annual fee

Payment date: 19990106

Start annual number: 7

End annual number: 7

PR1001 Payment of annual fee

Payment date: 19991229

Start annual number: 8

End annual number: 8

PR1001 Payment of annual fee

Payment date: 20001216

Start annual number: 9

End annual number: 9

PR1001 Payment of annual fee

Payment date: 20011218

Start annual number: 10

End annual number: 10

PR1001 Payment of annual fee

Payment date: 20021217

Start annual number: 11

End annual number: 11

FPAY Annual fee payment

Payment date: 20031219

Year of fee payment: 12

PR1001 Payment of annual fee

Payment date: 20031219

Start annual number: 12

End annual number: 12

EXPY Expiration of term
PC1801 Expiration of term