KR950009535A - 자기기록방식 - Google Patents

자기기록방식 Download PDF

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Publication number
KR950009535A
KR950009535A KR1019940021358A KR19940021358A KR950009535A KR 950009535 A KR950009535 A KR 950009535A KR 1019940021358 A KR1019940021358 A KR 1019940021358A KR 19940021358 A KR19940021358 A KR 19940021358A KR 950009535 A KR950009535 A KR 950009535A
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KR
South Korea
Prior art keywords
magnetic
recording method
coercive force
core material
disk
Prior art date
Application number
KR1019940021358A
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English (en)
Other versions
KR100296731B1 (ko
Inventor
겐지 가소리
미쓰하루 쇼지
가즈히꼬 하야시
Original Assignee
오가 노리오
소니 가부시기가이샤
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 오가 노리오, 소니 가부시기가이샤 filed Critical 오가 노리오
Publication of KR950009535A publication Critical patent/KR950009535A/ko
Application granted granted Critical
Publication of KR100296731B1 publication Critical patent/KR100296731B1/ko

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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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • 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
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • 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
    • G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
    • G11B5/00813—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes
    • 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
    • G11B5/147—Structure or manufacture of heads, e.g. inductive with cores being composed of metal sheets, i.e. laminated cores with cores composed of isolated magnetic layers, e.g. sheets
    • 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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/78—Tape carriers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/11—Magnetic recording head
    • Y10T428/1171—Magnetic recording head with defined laminate structural detail

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Record Carriers (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Heads (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

고밀도 기록화를 달성할 수 있고, 또한 고출력, 고신뢰성을 가진 가지기록방식을 제공한다.
자성분말을 사용하는 도포형의 자기테이프 또는 자기디스크를 사용한 자기기록방식에 있어서, 자기테이프의 보자력(保磁力)을 2000 Oe~3300 Oe, 또는 자기디스크의 보자력을 2000 Oe~3300 Oe로 하는 동시에 포화자록밀도 15kG이상의 자기코어재를 사용한 자기헤드에 의해 신호를 기록한다. 자기테이프 또는 자기디스크의 보자력을 높이는데는, 사용할 자성분말의 침상비(針狀比)를 개선하여, 표면산화층을 저감시킨다. 자기코어재에는, 예를 들면(FeMCuRu)-N-O계(단, M은 Si,Al,Ta,B,Mg,Ca,Sr, Cr,Mn,Zr,Nb,Ti,Mo,V,W,Hf,Ga,Ge,희토류 원소중 최소한 1종을 나타냄)을 사용한다.

Description

자기기록방식
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 MP테이프 및 ME테이프에 있어서의 Hc와 자기테이프의 성능지수인 보자력과 잔류자속밀도의 적(HcXBr)의 관계를 나타낸 특성도,
제2도는 MP테이프에, ME테이프 있어서의 Hc와 (Br/Hc)-0.4의 관계를 나타낸 특성도,
제3도는 고포화 자속밀도를 가진 자기코어재를 사용하여 제작한 라미네이트형 자기헤드의 개략사시도,
제4도는 각종의 보자력을 가진 MP테이프에 기록했을 때의 기록전류와 재생출력의 관계를 나타낸 특성도.

Claims (2)

  1. 자성분말을 사용하는 도포형 자기테이프를 사용한 자기기록방식에 있어서, 자기디스크의 보자력(保磁力)Hc을 2000 Oe~3300 Oe로 하고, 포화자속밀도 15kG이상의 자기코어재를 사용한 자기헤드에 의해 신호를 기록하는 것을 특징으로 하는 자기기록방식.
  2. 자성분말을 사용하는 도포형 자기디스크를 사용한 접촉형 자기기록방식에 있어서, 자기디스크의 보자력 Hc을 2000 Oe~3300 Oe로 하고, 포화자속밀도 15kG 이상의 자기코어재료를 사용한 자기헤드에 의해 신호를 기록하는 것을 특징으로 하는 자기기록방식.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940021358A 1993-09-13 1994-08-29 자기기록방식 KR100296731B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP93-227620 1993-09-13
JP5227620A JPH0785401A (ja) 1993-09-13 1993-09-13 磁気記録方式

Publications (2)

Publication Number Publication Date
KR950009535A true KR950009535A (ko) 1995-04-24
KR100296731B1 KR100296731B1 (ko) 2001-10-24

Family

ID=16863790

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940021358A KR100296731B1 (ko) 1993-09-13 1994-08-29 자기기록방식

Country Status (5)

Country Link
US (1) US5599635A (ko)
EP (1) EP0643382B1 (ko)
JP (1) JPH0785401A (ko)
KR (1) KR100296731B1 (ko)
DE (1) DE69422107T2 (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5837392A (en) * 1995-11-30 1998-11-17 Sony Corporation Soft magnetic thin film and thin film magnetic head using same
JPH09274708A (ja) * 1996-04-02 1997-10-21 Victor Co Of Japan Ltd 磁気ヘッド及び磁気ヘッド組立体
JP3772458B2 (ja) * 1997-04-30 2006-05-10 ソニー株式会社 磁気ヘッド及びその製造方法
US6456465B1 (en) 1999-11-09 2002-09-24 Read-Rite Corporation Vertical giant magnetoresistance sensor using a recessed shield
JP2002092855A (ja) * 2000-09-14 2002-03-29 Fuji Photo Film Co Ltd 磁気記録媒体

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986007651A1 (en) * 1985-06-21 1986-12-31 Sumitomo Metal Mining Co., Ltd. Magnetic recording medium
CA1315612C (en) * 1986-03-18 1993-04-06 Shogo Nasu Perpendicular magnetic storage medium
JPS63152017A (ja) * 1986-12-16 1988-06-24 Fuji Photo Film Co Ltd 磁気記録媒体
DE3882832T2 (de) * 1987-06-30 1994-02-10 Sony Corp Weicheisenmagnet-Dünnfilme.
US4969962A (en) * 1988-08-20 1990-11-13 Victor Company Of Japan, Ltd. Magnetic alloys for magnetic head
DE69015652T2 (de) * 1989-01-26 1995-05-11 Fuji Photo Film Co Ltd Weichmagnetischer dünner Film, Verfahren zu seiner Herstellung und Magnetkopf.
US5154983A (en) * 1989-10-18 1992-10-13 Victor Company Of Japan, Ltd. Magnetic alloy
US5287237A (en) * 1990-03-16 1994-02-15 Hitachi, Ltd. Antiferromagnetic film superior in corrosion resistance, magnetoresistance-effect element and magnetoresistance-effect head including such thin film
JP2950912B2 (ja) * 1990-05-22 1999-09-20 ティーディーケイ株式会社 軟磁性薄膜
JPH06505366A (ja) * 1991-03-08 1994-06-16 ビーエーエスエフ　アクチェンゲゼルシャフト 新規カテゴリーの磁性材料、その製造方法および用途
US5192618A (en) * 1991-04-26 1993-03-09 International Business Machines Corporation Corrosion protection by femn by ion implantation

Also Published As

Publication number Publication date
EP0643382B1 (en) 1999-12-15
EP0643382A3 (en) 1996-12-04
US5599635A (en) 1997-02-04
DE69422107D1 (de) 2000-01-20
EP0643382A2 (en) 1995-03-15
DE69422107T2 (de) 2000-08-17
JPH0785401A (ja) 1995-03-31
KR100296731B1 (ko) 2001-10-24

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