DE3575220D1 - Magnetisches aufzeichnungsmedium. - Google Patents

Magnetisches aufzeichnungsmedium.

Info

Publication number
DE3575220D1
DE3575220D1 DE8585111772T DE3575220T DE3575220D1 DE 3575220 D1 DE3575220 D1 DE 3575220D1 DE 8585111772 T DE8585111772 T DE 8585111772T DE 3575220 T DE3575220 T DE 3575220T DE 3575220 D1 DE3575220 D1 DE 3575220D1
Authority
DE
Germany
Prior art keywords
recording medium
magnetic recording
magnetic
medium
recording
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 - Lifetime
Application number
DE8585111772T
Other languages
English (en)
Inventor
Akira Miyake
Mayasa Funahashi
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.)
Maxell Holdings Ltd
Original Assignee
Hitachi Maxell 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
Priority claimed from JP59195608A external-priority patent/JPS6173240A/ja
Priority claimed from JP60024112A external-priority patent/JPH079698B2/ja
Application filed by Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Application granted granted Critical
Publication of DE3575220D1 publication Critical patent/DE3575220D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/71—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the 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
    • Y10T428/25—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
    • 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
    • Y10T428/257—Iron oxide or aluminum oxide
DE8585111772T 1984-09-18 1985-09-17 Magnetisches aufzeichnungsmedium. Expired - Lifetime DE3575220D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59195608A JPS6173240A (ja) 1984-09-18 1984-09-18 磁気デイスク
JP60024112A JPH079698B2 (ja) 1985-02-08 1985-02-08 磁気記録媒体

Publications (1)

Publication Number Publication Date
DE3575220D1 true DE3575220D1 (de) 1990-02-08

Family

ID=26361600

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585111772T Expired - Lifetime DE3575220D1 (de) 1984-09-18 1985-09-17 Magnetisches aufzeichnungsmedium.

Country Status (3)

Country Link
US (1) US4647502A (de)
EP (1) EP0178476B1 (de)
DE (1) DE3575220D1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0715748B2 (ja) * 1985-02-27 1995-02-22 日立マクセル株式会社 磁気記録媒体
JPH0673174B2 (ja) * 1985-06-20 1994-09-14 日立マクセル株式会社 磁気記録媒体
JPH0736216B2 (ja) * 1985-10-15 1995-04-19 日立マクセル株式会社 磁気デイスク
CN1084909C (zh) * 1994-01-18 2002-05-15 日立马库塞鲁株式会社 磁性记录媒体

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1080614A (en) * 1966-04-21 1967-08-23 Agfa Gevaert Nv Magnetic recording material
FR1561251A (de) * 1968-01-12 1969-03-28
DE2928096A1 (de) * 1979-07-12 1981-02-05 Basf Ag Magnetischer aufzeichnungstraeger
JPS56153533A (en) * 1980-04-25 1981-11-27 Tdk Corp Magnetic recording medium
JPS57179946A (en) * 1981-04-28 1982-11-05 Fuji Photo Film Co Ltd Magnetic recording medium
JPS58130435A (ja) * 1982-01-29 1983-08-03 Fuji Photo Film Co Ltd 磁気記録媒体
US4522885A (en) * 1983-02-12 1985-06-11 Hitachi Maxell, Ltd. Magnetic recording medium
JPS59198532A (ja) * 1983-04-25 1984-11-10 Fuji Photo Film Co Ltd 磁気記録媒体

Also Published As

Publication number Publication date
US4647502A (en) 1987-03-03
EP0178476B1 (de) 1990-01-03
EP0178476A3 (en) 1988-01-07
EP0178476A2 (de) 1986-04-23

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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