DE3123803C2 - - Google Patents

Info

Publication number
DE3123803C2
DE3123803C2 DE3123803A DE3123803A DE3123803C2 DE 3123803 C2 DE3123803 C2 DE 3123803C2 DE 3123803 A DE3123803 A DE 3123803A DE 3123803 A DE3123803 A DE 3123803A DE 3123803 C2 DE3123803 C2 DE 3123803C2
Authority
DE
Germany
Prior art keywords
magnetic recording
recording medium
lubricant
lubricant layer
graphite
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
Application number
DE3123803A
Other languages
German (de)
English (en)
Other versions
DE3123803A1 (de
Inventor
Masaaki Fujiyama
Nobutaka Odawara Kanagawa Jp Yamaguchi
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 Holdings 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
Publication of DE3123803A1 publication Critical patent/DE3123803A1/de
Application granted granted Critical
Publication of DE3123803C2 publication Critical patent/DE3123803C2/de
Granted 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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/735—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the back layer
    • G11B5/7356—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the back layer comprising non-magnetic particles in the back layer, e.g. particles of TiO2, ZnO or SiO2
    • 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
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • 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
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof

Landscapes

  • Magnetic Record Carriers (AREA)
  • Paints Or Removers (AREA)
  • Lubricants (AREA)
DE19813123803 1980-06-17 1981-06-16 Magnetisches aufzeichungsmaterial Granted DE3123803A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8156980A JPS578926A (en) 1980-06-17 1980-06-17 Magnetic recording body

Publications (2)

Publication Number Publication Date
DE3123803A1 DE3123803A1 (de) 1982-03-25
DE3123803C2 true DE3123803C2 (US08197722-20120612-C00042.png) 1989-04-06

Family

ID=13749920

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813123803 Granted DE3123803A1 (de) 1980-06-17 1981-06-16 Magnetisches aufzeichungsmaterial

Country Status (3)

Country Link
US (1) US4427738A (US08197722-20120612-C00042.png)
JP (1) JPS578926A (US08197722-20120612-C00042.png)
DE (1) DE3123803A1 (US08197722-20120612-C00042.png)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425404A (en) * 1982-04-30 1984-01-10 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium
JPS593723A (ja) * 1982-06-29 1984-01-10 Fuji Photo Film Co Ltd 磁気記録媒体
JPS59188830A (ja) * 1983-04-11 1984-10-26 Fuji Photo Film Co Ltd 磁気記録媒体
JPS59198532A (ja) * 1983-04-25 1984-11-10 Fuji Photo Film Co Ltd 磁気記録媒体
US4446193A (en) * 1983-04-29 1984-05-01 International Business Machines Corporation Process for chemically bonding lubricant to an information carrier and products thereof
JPS605423A (ja) * 1983-06-22 1985-01-12 Fujitsu Ltd 連続磁性膜型磁気記録媒体
JPS6025074A (ja) * 1983-07-21 1985-02-07 Fuji Photo Film Co Ltd フレキシブル磁気デイスク
DE3437887A1 (de) * 1983-10-17 1985-05-23 TDK Corporation, Tokio/Tokyo Magnetischer aufzeichnungstraeger
JP3102599B2 (ja) * 1992-04-24 2000-10-23 ティーディーケイ株式会社 光磁気ディスク
DE4300858A1 (de) * 1993-01-15 1994-07-21 Basf Magnetics Gmbh Magnetisches Aufzeichnungsmedium
US5620765A (en) * 1995-05-02 1997-04-15 Eastman Kodak Company Aqueous backing for digital optical media
WO2011111668A1 (ja) * 2010-03-09 2011-09-15 大豊工業株式会社 摺動部材

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5729769B2 (US08197722-20120612-C00042.png) 1974-02-15 1982-06-24
JPS5337003B2 (US08197722-20120612-C00042.png) * 1974-05-22 1978-10-06
JPS5126006A (US08197722-20120612-C00042.png) 1974-08-28 1976-03-03 Fuji Photo Film Co Ltd
DE2501372C2 (de) 1975-01-15 1983-10-27 Basf Ag, 6700 Ludwigshafen Flexible Schichtmagnetogrammträger mit Rückseitenbeschichtung und Verfahren zu ihrer Herstellung
US4328935A (en) 1980-06-12 1982-05-11 Minnesota Mining And Manufacturing Company Flexible magnetic recording tape having low-friction backside coating

Also Published As

Publication number Publication date
JPS578926A (en) 1982-01-18
DE3123803A1 (de) 1982-03-25
JPS6228488B2 (US08197722-20120612-C00042.png) 1987-06-20
US4427738A (en) 1984-01-24

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Legal Events

Date Code Title Description
8128 New person/name/address of the agent

Representative=s name: KOHLER, M., DIPL.-CHEM. DR.RER.NAT., 8000 MUENCHEN

8110 Request for examination paragraph 44
8128 New person/name/address of the agent

Representative=s name: SOLF, A., DR.-ING., 8000 MUENCHEN ZAPF, C., DIPL.-

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee