DE69309779T2 - Magnetisches Aufzeichnungsmedium und Verfahren zu seiner Herstellung - Google Patents

Magnetisches Aufzeichnungsmedium und Verfahren zu seiner Herstellung

Info

Publication number
DE69309779T2
DE69309779T2 DE69309779T DE69309779T DE69309779T2 DE 69309779 T2 DE69309779 T2 DE 69309779T2 DE 69309779 T DE69309779 T DE 69309779T DE 69309779 T DE69309779 T DE 69309779T DE 69309779 T2 DE69309779 T2 DE 69309779T2
Authority
DE
Germany
Prior art keywords
production
recording medium
magnetic recording
magnetic
medium
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
DE69309779T
Other languages
English (en)
Other versions
DE69309779D1 (de
Inventor
Ryuji Sugita
Kiyokazu Tohma
Tatsuaki Ishida
Yasuaki Ban
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69309779D1 publication Critical patent/DE69309779D1/de
Publication of DE69309779T2 publication Critical patent/DE69309779T2/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
    • G11B5/62—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
DE69309779T 1992-06-05 1993-06-03 Magnetisches Aufzeichnungsmedium und Verfahren zu seiner Herstellung Expired - Fee Related DE69309779T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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
DE69309779D1 DE69309779D1 (de) 1997-05-22
DE69309779T2 true DE69309779T2 (de) 1997-08-07

Family

ID=15381820

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69309779T Expired - Fee Related DE69309779T2 (de) 1992-06-05 1993-06-03 Magnetisches Aufzeichnungsmedium und Verfahren zu seiner Herstellung

Country Status (5)

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

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
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
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
JPH08129736A (ja) * 1994-11-01 1996-05-21 Matsushita Electric Ind Co Ltd 磁気記録媒体
EP0729134A1 (de) * 1995-02-24 1996-08-28 Kao Corporation Magnetischer Aufzeichnungsträger
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
DE3573672D1 (en) * 1984-01-26 1989-11-16 Hitachi Maxell Magnetic recording medium and production thereof
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
KR0133353B1 (ko) 1998-04-18
JPH05342553A (ja) 1993-12-24
EP0573026A1 (de) 1993-12-08
US5418059A (en) 1995-05-23
EP0573026B1 (de) 1997-04-16
KR940006085A (ko) 1994-03-23
DE69309779D1 (de) 1997-05-22

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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