DE4300858A1 - Magnetisches Aufzeichnungsmedium - Google Patents

Magnetisches Aufzeichnungsmedium

Info

Publication number
DE4300858A1
DE4300858A1 DE4300858A DE4300858A DE4300858A1 DE 4300858 A1 DE4300858 A1 DE 4300858A1 DE 4300858 A DE4300858 A DE 4300858A DE 4300858 A DE4300858 A DE 4300858A DE 4300858 A1 DE4300858 A1 DE 4300858A1
Authority
DE
Germany
Prior art keywords
magnetic
layers
layer
cobalt
metal
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.)
Withdrawn
Application number
DE4300858A
Other languages
German (de)
English (en)
Inventor
Harald Dr Keller
Ulrich Dr Jaeger
Helmut Dr Steininger
Helmut Kopke
Klaus Dieter Dr Schomann
Hans-Peter Dr Schildberg
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.)
Emtec Magnetics GmbH
Original Assignee
BASF Magnetics GmbH
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 BASF Magnetics GmbH filed Critical BASF Magnetics GmbH
Priority to DE4300858A priority Critical patent/DE4300858A1/de
Priority to EP93120919A priority patent/EP0608561A1/de
Priority to US08/180,074 priority patent/US5462810A/en
Priority to JP6001615A priority patent/JPH06295430A/ja
Priority to KR1019940000572A priority patent/KR100284206B1/ko
Priority to TW083100395A priority patent/TW245804B/zh
Publication of DE4300858A1 publication Critical patent/DE4300858A1/de
Withdrawn legal-status Critical Current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
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/722—Protective coatings, e.g. anti-static or antifriction containing an anticorrosive material
    • 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
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/725—Protective coatings, e.g. anti-static or antifriction containing a lubricant, e.g. organic compounds
    • G11B5/7253—Fluorocarbon lubricant
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
    • Y10T428/31544—Addition polymer is perhalogenated

Landscapes

  • Magnetic Record Carriers (AREA)
  • Lubricants (AREA)
  • Paints Or Removers (AREA)
DE4300858A 1993-01-15 1993-01-15 Magnetisches Aufzeichnungsmedium Withdrawn DE4300858A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE4300858A DE4300858A1 (de) 1993-01-15 1993-01-15 Magnetisches Aufzeichnungsmedium
EP93120919A EP0608561A1 (de) 1993-01-15 1993-12-27 Magnetisches Aufzeichnungsmedium
US08/180,074 US5462810A (en) 1993-01-15 1994-01-11 Magnetic recording medium
JP6001615A JPH06295430A (ja) 1993-01-15 1994-01-12 磁気記録媒体
KR1019940000572A KR100284206B1 (ko) 1993-01-15 1994-01-14 자기 기록 매체
TW083100395A TW245804B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-01-15 1994-01-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4300858A DE4300858A1 (de) 1993-01-15 1993-01-15 Magnetisches Aufzeichnungsmedium

Publications (1)

Publication Number Publication Date
DE4300858A1 true DE4300858A1 (de) 1994-07-21

Family

ID=6478218

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4300858A Withdrawn DE4300858A1 (de) 1993-01-15 1993-01-15 Magnetisches Aufzeichnungsmedium

Country Status (6)

Country Link
US (1) US5462810A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0608561A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPH06295430A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
KR (1) KR100284206B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE4300858A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
TW (1) TW245804B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6876511B2 (ja) 2017-05-12 2021-05-26 株式会社トプコン 偏向装置及び測量機

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3353166A (en) * 1963-10-23 1967-11-14 Ibm Oxide coated magnetic recording medium
US3778308B1 (en) * 1970-12-18 1991-06-04 Magnetic storage device coating and process
US4277540A (en) * 1971-05-03 1981-07-07 Aine Harry E Thin film magnetic recording medium
US3767369A (en) * 1971-08-04 1973-10-23 Ampex Duplex metallic overcoating
US4029541A (en) * 1974-07-05 1977-06-14 Ampex Corporation Magnetic recording disc of improved durability having tin-nickel undercoating
US4268369A (en) * 1977-07-18 1981-05-19 Ampex Corporation Process of making silicon dioxide films for use as wear resistant coatings in video and digital magnetic recording
JPS578926A (en) * 1980-06-17 1982-01-18 Fuji Photo Film Co Ltd Magnetic recording body
JPS6139921A (ja) 1984-07-31 1986-02-26 Tdk Corp 磁気記録媒体および磁気記録方法
JPS6142724A (ja) 1984-08-03 1986-03-01 Tdk Corp 磁気記録媒体および磁気記録方法
US4696845A (en) * 1984-08-27 1987-09-29 Nec Corporation Magnetic storage medium with lubricating coating
JPH0610871B2 (ja) 1984-12-25 1994-02-09 ティーディーケイ株式会社 磁気記録媒体
JPS61253634A (ja) 1985-05-01 1986-11-11 Hitachi Maxell Ltd 磁気記録媒体
FR2588555B1 (fr) * 1985-10-16 1987-12-11 Atochem Monomeres acryliques fluores, polymeres en derivant et leur application au traitement hydrofuge et oleofuge de substrats divers
JPS62192028A (ja) * 1986-02-18 1987-08-22 Hitachi Maxell Ltd 磁気記録媒体
JP2532209B2 (ja) 1986-04-04 1996-09-11 ティーディーケイ株式会社 磁気記録媒体
US4770924A (en) * 1986-07-02 1988-09-13 Tdk Corporation Magnetic recording medium
JPS63281218A (ja) 1987-05-13 1988-11-17 Hitachi Ltd 磁気記録媒体
US5061562A (en) 1987-09-22 1991-10-29 Fuji Photo Film Co., Ltd. Method for preparing a magnetic recording medium and a magnetic disk using the same
JPH0775065B2 (ja) 1987-09-30 1995-08-09 富士写真フイルム株式会社 磁気記録媒体
JP2588006B2 (ja) 1988-09-30 1997-03-05 富士写真フイルム株式会社 研磨テープ
JPH07105035B2 (ja) 1989-04-06 1995-11-13 松下電器産業株式会社 磁気記録媒体およびその製造方法
US5128216A (en) 1990-06-26 1992-07-07 Digital Equipment Corporation Lubricants for magnetic media

Also Published As

Publication number Publication date
TW245804B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1995-04-21
EP0608561A1 (de) 1994-08-03
US5462810A (en) 1995-10-31
KR100284206B1 (ko) 2001-03-02
JPH06295430A (ja) 1994-10-21

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: BASF MAGNETICS GMBH, 67059 LUDWIGSHAFEN, DE

8127 New person/name/address of the applicant

Owner name: EMTEC MAGNETICS GMBH, 67059 LUDWIGSHAFEN, DE

8110 Request for examination paragraph 44
8139 Disposal/non-payment of the annual fee
8170 Reinstatement of the former position
8139 Disposal/non-payment of the annual fee
8170 Reinstatement of the former position
8130 Withdrawal