KR940006085A - 자기기록매체 및 그 제조방법 - Google Patents

자기기록매체 및 그 제조방법 Download PDF

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Publication number
KR940006085A
KR940006085A KR1019930010054A KR930010054A KR940006085A KR 940006085 A KR940006085 A KR 940006085A KR 1019930010054 A KR1019930010054 A KR 1019930010054A KR 930010054 A KR930010054 A KR 930010054A KR 940006085 A KR940006085 A KR 940006085A
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KR
South Korea
Prior art keywords
magnetic layer
less
concentration
group
recording medium
Prior art date
Application number
KR1019930010054A
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English (en)
Other versions
KR0133353B1 (ko
Inventor
류지 스기타
키요키즈 토오마
타쯔아끼 이시다
야쓰아끼 반
Original Assignee
다니이 아끼오
마쯔시다덴기산교 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.)
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Application filed by 다니이 아끼오, 마쯔시다덴기산교 가부시기가이샤 filed Critical 다니이 아끼오
Publication of KR940006085A publication Critical patent/KR940006085A/ko
Application granted granted Critical
Publication of KR0133353B1 publication Critical patent/KR0133353B1/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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
    • G11B5/672—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having different compositions in a plurality of magnetic layers, e.g. layer compositions having differing elemental components or differing proportions of elements
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/85—Coating a support with a magnetic layer by vapour deposition
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12465—All metal or with adjacent metals having magnetic properties, or preformed fiber orientation coordinate with shape
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12931—Co-, Fe-, or Ni-base components, alternative to each other
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less

Landscapes

  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

본 발명은, 기판상에 자화용이축이 막면의 법선에 대해서 경사지고 있으며 40원자%, 이하의 농도의 산소를 함유하는 막두께 0.15㎛이하의 Co기의 제1의 자성층이 형성되고, 그 위에 자화용 이축이 막면의 법선에 대해서 경사지고 있으며 37원자% 이하의 농도의 산소를 함유하는 막두께 0.15㎛이하의 Co기의 제2의 자성층이 형성되어 있으며 제1의 자성층의 산소농도가 제2의 자성층의 산소농도 보다도 높은 것을 특징으로 하는 자기기록매체에 관한 것이며, 이로서, 재생출력의 향상 및 노이즈의 저감을 달성할 수 있고, 높은S/N을 얻을 수 있는 자기기록매체 및 그 제조방법을 제공할 수 있다.

Description

자기기록매체 및 그 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 자기기록매체의 제조방법을 설명하기 위한 진공증착장치내부의 개략도.
제2도는 본 발명의 자기기록매체의 다른 제조방법을 설명하기 위한 진공증착장치 내부의 개략도.

Claims (5)

  1. 기판상에 자화용이축이 막면의 법선에 대해서 경사지고 있으며 40원자% 이하의 농도의 산소를 함유하는 막두께 0.15㎛이하의 Co기의 제1의 자성층이 형성되고, 그 위에 자화용 이축이 막면의 법선에 대해서 경사지고 있으며 37원자% 이하의 농도의 산소를 함유하는 막두께 0.15㎛ 이하의 Co기의 제2의 자성층이 형성되어 있으 며, 제1의 자성층의 산소농도가 제2의 자성층의 산소농도보다도 높은 것을 특징으로 하는 자기기록매체.
  2. 제1항에 있어서, 상기 제1의 자성층에 있어서의 긴쪽방향의 보자력이, 상기 제2의 자성층에 있어서의 긴쪽 방향의 보자력보다도 높은 것을 특징으로 하는 자기기록매체.
  3. 진공증착법에 의해 원통형상캔을 따라서 주행하고 있는 기판상에, 40원자% 이하의 농도의 산소를 함유하는 막두께 0.15㎛ 이하의 Co기의 제1의 자성층을 형성하고, 그위에 37원자% 이하의 농도의 산소를 함유하는 막두께 0.15㎛ 이하의 Co기의 제2의 자성층을 형성할때에, 제1의 자성층 및 제2의 자성층과 함께, 막형성개시부에 있어서의 증발원자의 기판으로의 입사각을 기판법선방향에 대해서 85°이하로하고, 막형성종료부에 있어서의 증발원자의 기판으로의 입사각을 35°이상으로해서, 제1의 자성층의 산소농도가 제2의 자성층의 산소농도보다도 높게되도록 진공조내부에 산소를 도입하면서 형성하는 것을 특징으로 하는 자기기록매체의 제조방법.
  4. 제3항에 있어서, 진공증착에 의해 원통형상캔을 따라서 주행하고 있는 고분자기판상에 Co기의 산화막을 형성하고, 그위에 상기 제1의 지성층 및 상기 제2의 자성층을 형성하는 것을 특징으로 하는 자기기록매체의 제조방법.
  5. 제4항에 있어서, 상기 Co기의 산화막이 기동형상구조를 하고 있으며, 기동형상결정입자의 막면의 법선에 대한 경사각이 40°이하인것을 특징으로 하는 자기기록매체의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930010054A 1992-06-05 1993-06-04 자기기록매체 및 그 제조방법 KR0133353B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP92-145294 1992-06-05
JP4145294A JPH05342553A (ja) 1992-06-05 1992-06-05 磁気記録媒体及びその製造方法

Publications (2)

Publication Number Publication Date
KR940006085A true KR940006085A (ko) 1994-03-23
KR0133353B1 KR0133353B1 (ko) 1998-04-18

Family

ID=15381820

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930010054A KR0133353B1 (ko) 1992-06-05 1993-06-04 자기기록매체 및 그 제조방법

Country Status (5)

Country Link
US (1) US5418059A (ko)
EP (1) EP0573026B1 (ko)
JP (1) JPH05342553A (ko)
KR (1) KR0133353B1 (ko)
DE (1) DE69309779T2 (ko)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5558945A (en) * 1993-12-28 1996-09-24 Tdk Corporation Magnetic recording medium
US5569523A (en) * 1994-02-28 1996-10-29 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium having a ferromagnetic thin film in which 70% to 90% of the total magnetic particles have residual magnetization vectors within ±10° of the easy axis direction
US5796533A (en) * 1994-03-15 1998-08-18 Kao Corporation System for magnetic contact duplication
JPH0853763A (ja) * 1994-06-06 1996-02-27 Matsushita Electric Ind Co Ltd 薄膜の製造方法
JP3173549B2 (ja) * 1994-06-17 2001-06-04 松下電器産業株式会社 磁気記録媒体の製造方法
JP3323660B2 (ja) * 1994-08-18 2002-09-09 松下電器産業株式会社 磁気記録媒体と薄膜の製造方法及び薄膜の製造装置
US5759710A (en) * 1994-08-18 1998-06-02 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium with a magnetic layer having a specific oxygen signal strength profile in the thickness direction
JPH08129736A (ja) * 1994-11-01 1996-05-21 Matsushita Electric Ind Co Ltd 磁気記録媒体
US5731068A (en) * 1995-02-24 1998-03-24 Kao Corporation Magnetic recording medium
US6251496B1 (en) * 1997-12-16 2001-06-26 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium method and apparatus for producing the same
JP2002092854A (ja) * 2000-09-14 2002-03-29 Fuji Photo Film Co Ltd 磁気記録媒体及び信号記録方式
KR101897713B1 (ko) 2016-12-23 2018-09-12 롯데알미늄 주식회사 자동판매기의 전동식 이동장치

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56143519A (en) * 1980-04-08 1981-11-09 Tdk Corp Magnetic recording medium and manufacturing device
JPS5961105A (ja) * 1982-09-30 1984-04-07 Fuji Photo Film Co Ltd 磁気記録媒体
JPS59119531A (ja) * 1982-12-25 1984-07-10 Tdk Corp 磁気記録媒体
EP0151445B2 (en) * 1984-01-26 1993-11-03 Hitachi Maxell Ltd. Production of magnetic recording medium
US4749628A (en) * 1986-04-29 1988-06-07 International Business Machines Corporation Multilayered vertical magnetic recording medium
JPH0834001B2 (ja) * 1990-07-25 1996-03-29 松下電器産業株式会社 磁気記録媒体の製造方法

Also Published As

Publication number Publication date
EP0573026A1 (en) 1993-12-08
JPH05342553A (ja) 1993-12-24
KR0133353B1 (ko) 1998-04-18
DE69309779D1 (de) 1997-05-22
US5418059A (en) 1995-05-23
EP0573026B1 (en) 1997-04-16
DE69309779T2 (de) 1997-08-07

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