DE69117362D1 - Zusammengesetzter Magnetkopf - Google Patents

Zusammengesetzter Magnetkopf

Info

Publication number
DE69117362D1
DE69117362D1 DE69117362T DE69117362T DE69117362D1 DE 69117362 D1 DE69117362 D1 DE 69117362D1 DE 69117362 T DE69117362 T DE 69117362T DE 69117362 T DE69117362 T DE 69117362T DE 69117362 D1 DE69117362 D1 DE 69117362D1
Authority
DE
Germany
Prior art keywords
magnetic head
compound magnetic
compound
head
magnetic
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
DE69117362T
Other languages
English (en)
Other versions
DE69117362T2 (de
Inventor
Tatsuya Isomura
Osamu Shimizu
Satoshi Yoshida
Kanji Nakanishi
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.)
Fujifilm Corp
Original Assignee
Fuji Photo Film 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
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Application granted granted Critical
Publication of DE69117362D1 publication Critical patent/DE69117362D1/de
Publication of DE69117362T2 publication Critical patent/DE69117362T2/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
    • 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
    • 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)
DE69117362T 1990-07-13 1991-07-11 Zusammengesetzter Magnetkopf Expired - Fee Related DE69117362T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18416190 1990-07-13

Publications (2)

Publication Number Publication Date
DE69117362D1 true DE69117362D1 (de) 1996-04-04
DE69117362T2 DE69117362T2 (de) 1996-07-11

Family

ID=16148436

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69117362T Expired - Fee Related DE69117362T2 (de) 1990-07-13 1991-07-11 Zusammengesetzter Magnetkopf

Country Status (3)

Country Link
US (1) US5227940A (de)
EP (1) EP0466159B1 (de)
DE (1) DE69117362T2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05117023A (ja) * 1991-10-25 1993-05-14 Nec Corp 磁気ヘツド用非磁性基板および磁気ヘツド
JP2586367B2 (ja) * 1992-04-15 1997-02-26 日本電気株式会社 軟磁性材料とその製造方法および磁気ヘッド
JPH06203323A (ja) * 1992-06-16 1994-07-22 Samsung Electro Mech Co Ltd 磁気ヘッド及びその製造方法
JPH0793709A (ja) * 1993-07-29 1995-04-07 Sony Corp 磁気ヘッド
CN1117180A (zh) * 1994-03-09 1996-02-21 株式会社日立制作所 磁变电阻效应型磁头及其制造方法
JPH0830909A (ja) * 1994-07-15 1996-02-02 Sony Corp 磁気ヘッド
KR100385126B1 (ko) * 1994-10-31 2003-08-09 소니 가부시끼 가이샤 자기헤드
JPH08304010A (ja) * 1995-04-28 1996-11-22 Sony Corp デプスセンサー
JPH0973605A (ja) * 1995-09-01 1997-03-18 Matsushita Electric Ind Co Ltd 磁気ヘッド及びその製造方法と磁気記録再生装置
EP0768640A3 (de) * 1995-10-13 1998-11-11 Ampex Corporation Magnetkopf mit kleinem Kern und nicht magnetischem Seitenträger
JP2000242912A (ja) * 1999-02-22 2000-09-08 Mitsumi Electric Co Ltd 薄膜磁気ヘッド
JP2001134904A (ja) * 1999-11-04 2001-05-18 Sony Corp 磁気ヘッド
US20050150625A1 (en) * 2000-09-25 2005-07-14 Takashi Ochi Gravure paper
US6894868B2 (en) * 2001-07-23 2005-05-17 Sony Corporation Magnetic head
US20070253103A1 (en) * 2006-04-27 2007-11-01 Heraeus, Inc. Soft magnetic underlayer in magnetic media and soft magnetic alloy based sputter target

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62210607A (ja) * 1986-03-12 1987-09-16 Matsushita Electric Ind Co Ltd 軟磁性合金膜及びその形成法
JPH0731782B2 (ja) * 1986-10-28 1995-04-10 アルプス電気株式会社 浮動式磁気ヘツド
JP2513232B2 (ja) * 1987-05-29 1996-07-03 ソニー株式会社 複合磁気ヘッド
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
JP2726048B2 (ja) * 1987-10-13 1998-03-11 ソニー 株式会社 複合磁気ヘッド
JPH0827897B2 (ja) * 1988-03-09 1996-03-21 松下電器産業株式会社 磁気ヘッド
JP2635402B2 (ja) * 1988-11-02 1997-07-30 アルプス電気株式会社 軟磁性合金膜
US5117321A (en) * 1989-01-26 1992-05-26 Fuji Photo Film Co., Ltd. Soft magnetic thin film, method for preparing same and magnetic head

Also Published As

Publication number Publication date
DE69117362T2 (de) 1996-07-11
US5227940A (en) 1993-07-13
EP0466159A3 (en) 1992-12-09
EP0466159A2 (de) 1992-01-15
EP0466159B1 (de) 1996-02-28

Similar Documents

Publication Publication Date Title
DE69334269D1 (de) Magnetkopfträger
FI921953A (fi) Magnetisk taetning
DE69124579D1 (de) Magnetisches Aufzeichnungsgerät
DE69126082D1 (de) Magnetischer Kopf
DE69418993D1 (de) Magnetkopf
DE69117362D1 (de) Zusammengesetzter Magnetkopf
DE69122816T2 (de) Magnetkopf
DE69024676D1 (de) Magnetkopf
KR920700440A (ko) 자기 헤드
DE69214847T2 (de) Magnetkopf
DE69231302D1 (de) Magnetkopfzusammenbau
DE69126224D1 (de) Schwimmender Magnetkopf
DE69213275D1 (de) Magnetband
DE59205886D1 (de) Magnetkopf
DE69122702D1 (de) Magnetkopf
DE59409427D1 (de) Magnetkopf
DE69121537D1 (de) Magnetkopfträger
DE69125780D1 (de) Magnetischer Kopf
DE69311153T2 (de) Magnetkopf
DE69118441T2 (de) Magnetkopf
DE69221647D1 (de) Magnetisches Aufzeichnungsgerät
DE69414465D1 (de) Magnetkopf
KR900012206A (ko) 자기 헤드
DE69222256D1 (de) Magnetkopf
DE69319173T2 (de) Magnetkopf

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: FUJIFILM CORP., TOKIO/TOKYO, JP

8339 Ceased/non-payment of the annual fee