DE69214847D1 - Magnetkopf - Google Patents

Magnetkopf

Info

Publication number
DE69214847D1
DE69214847D1 DE69214847T DE69214847T DE69214847D1 DE 69214847 D1 DE69214847 D1 DE 69214847D1 DE 69214847 T DE69214847 T DE 69214847T DE 69214847 T DE69214847 T DE 69214847T DE 69214847 D1 DE69214847 D1 DE 69214847D1
Authority
DE
Germany
Prior art keywords
magnetic head
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 - Fee Related
Application number
DE69214847T
Other languages
English (en)
Other versions
DE69214847T2 (de
Inventor
Hiroyuki Okuda
Isao Tanaka
Jyoichi Tamada
Kazuo Ino
Takashi Ogura
Fumio Kameoka Fumio Kameoka
Kouzo Ishihara
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co 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
Priority claimed from JP3000587A external-priority patent/JPH0827903B2/ja
Priority claimed from JP3079898A external-priority patent/JPH04313803A/ja
Priority claimed from JP3257974A external-priority patent/JPH0778854B2/ja
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Application granted granted Critical
Publication of DE69214847D1 publication Critical patent/DE69214847D1/de
Publication of DE69214847T2 publication Critical patent/DE69214847T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • 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)
DE69214847T 1991-01-08 1992-01-07 Magnetkopf Expired - Fee Related DE69214847T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3000587A JPH0827903B2 (ja) 1991-01-08 1991-01-08 磁気ヘッド
JP3079898A JPH04313803A (ja) 1991-04-12 1991-04-12 磁気ヘッド
JP3257974A JPH0778854B2 (ja) 1991-10-04 1991-10-04 磁気ヘッド

Publications (2)

Publication Number Publication Date
DE69214847D1 true DE69214847D1 (de) 1996-12-05
DE69214847T2 DE69214847T2 (de) 1997-04-03

Family

ID=27274528

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69214847T Expired - Fee Related DE69214847T2 (de) 1991-01-08 1992-01-07 Magnetkopf

Country Status (5)

Country Link
US (1) US5218500A (de)
EP (1) EP0496201B1 (de)
KR (1) KR100242036B1 (de)
CA (1) CA2058656A1 (de)
DE (1) DE69214847T2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05197903A (ja) * 1991-10-28 1993-08-06 Canon Inc 光磁気記録装置
JPH05217107A (ja) * 1992-01-31 1993-08-27 Sony Corp 磁気ヘッド
EP0627729A3 (en) * 1993-05-31 1995-11-02 Tdk Corp Magnetic recording/reproducing method.
US5392169A (en) * 1993-06-08 1995-02-21 International Business Machines Corporation Electrical means to diminish read-back signal waveform distortion in recording heads
KR100385126B1 (ko) * 1994-10-31 2003-08-09 소니 가부시끼 가이샤 자기헤드
JP3462019B2 (ja) * 1996-10-23 2003-11-05 アルプス電気株式会社 磁気ヘッド
JPH10162308A (ja) * 1996-11-29 1998-06-19 Alps Electric Co Ltd 磁気ヘッド
JP3517067B2 (ja) * 1996-11-29 2004-04-05 アルプス電気株式会社 磁気ヘッド
JPH10188212A (ja) * 1996-12-25 1998-07-21 Sony Corp 磁気ヘッド
JP2001118212A (ja) 1999-10-14 2001-04-27 Matsushita Electric Ind Co Ltd 磁気ヘッドおよび磁気記録再生装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5496012A (en) * 1978-01-13 1979-07-30 Victor Co Of Japan Ltd Magnetic head
JPS55125519A (en) * 1979-03-23 1980-09-27 Hitachi Ltd Magnetic head
JPS56163518A (en) * 1980-05-16 1981-12-16 Hitachi Ltd Magnetic head
JPS60224109A (ja) * 1984-04-20 1985-11-08 Hitachi Ltd 複合型磁気ヘツドを用いた磁気記録再生装置
JP2781849B2 (ja) * 1987-07-14 1998-07-30 三洋電機株式会社 磁気ヘッド及びその製造方法
JP2551014B2 (ja) * 1987-07-21 1996-11-06 ソニー株式会社 複合磁気ヘッド
JPH0827901B2 (ja) * 1988-10-05 1996-03-21 シャープ株式会社 磁気ヘッド
JPH0730465B2 (ja) * 1989-01-09 1995-04-05 日本碍子株式会社 負圧形磁気ヘッドスライダ及びその製造方法
JP2941886B2 (ja) * 1990-04-24 1999-08-30 キヤノン電子株式会社 磁気ヘッド

Also Published As

Publication number Publication date
US5218500A (en) 1993-06-08
EP0496201A1 (de) 1992-07-29
DE69214847T2 (de) 1997-04-03
KR920015275A (ko) 1992-08-26
CA2058656A1 (en) 1992-07-09
EP0496201B1 (de) 1996-10-30
KR100242036B1 (ko) 2000-02-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee