FR2335017B1 - - Google Patents

Info

Publication number
FR2335017B1
FR2335017B1 FR7637478A FR7637478A FR2335017B1 FR 2335017 B1 FR2335017 B1 FR 2335017B1 FR 7637478 A FR7637478 A FR 7637478A FR 7637478 A FR7637478 A FR 7637478A FR 2335017 B1 FR2335017 B1 FR 2335017B1
Authority
FR
France
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
FR7637478A
Other languages
French (fr)
Other versions
FR2335017A1 (fr
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.)
BASF SE
Original Assignee
BASF SE
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 SE filed Critical BASF SE
Publication of FR2335017A1 publication Critical patent/FR2335017A1/fr
Application granted granted Critical
Publication of FR2335017B1 publication Critical patent/FR2335017B1/fr
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
    • G11B5/68—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
    • G11B5/706—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 composition of the magnetic material
    • G11B5/70626—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 composition of the magnetic material containing non-metallic substances
    • G11B5/70636—CrO2
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • Y10T428/24967—Absolute thicknesses specified
    • Y10T428/24975—No layer or component greater than 5 mils thick
    • 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
    • Y10T428/26—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
    • 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
    • Y10T428/269—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension including synthetic resin or polymer layer or component
FR7637478A 1975-12-13 1976-12-13 Support d'enregistrement magnetique multi-couches flexible Granted FR2335017A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2556188A DE2556188C3 (de) 1975-12-13 1975-12-13 Flexible Mehrschichtmagnetogrammträger

Publications (2)

Publication Number Publication Date
FR2335017A1 FR2335017A1 (fr) 1977-07-08
FR2335017B1 true FR2335017B1 (US07489958-20090210-P00001.png) 1981-02-20

Family

ID=5964285

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7637478A Granted FR2335017A1 (fr) 1975-12-13 1976-12-13 Support d'enregistrement magnetique multi-couches flexible

Country Status (5)

Country Link
US (1) US4109046A (US07489958-20090210-P00001.png)
JP (1) JPS5942375B2 (US07489958-20090210-P00001.png)
DE (1) DE2556188C3 (US07489958-20090210-P00001.png)
FR (1) FR2335017A1 (US07489958-20090210-P00001.png)
IT (1) IT1074781B (US07489958-20090210-P00001.png)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5816248B2 (ja) * 1975-11-05 1983-03-30 富士写真フイルム株式会社 シンキナジキキロクタイ
DE2801452C2 (de) * 1978-01-13 1985-03-28 Agfa-Gevaert Ag, 5090 Leverkusen Magnetisches Aufzeichnungsmaterial
JPS5864628A (ja) * 1981-10-13 1983-04-18 Hitachi Maxell Ltd 磁気記録媒体
JPS58122623A (ja) * 1982-01-14 1983-07-21 Sony Corp 円盤状磁気記録媒体
JPS6043224A (ja) * 1983-08-18 1985-03-07 Tdk Corp 磁気記録媒体
JPS6045936A (ja) * 1983-08-22 1985-03-12 Tdk Corp 磁気記録媒体
JPS60124025A (ja) * 1983-12-06 1985-07-02 Fuji Photo Film Co Ltd 磁気記録媒体
JPH0656653B2 (ja) * 1984-06-13 1994-07-27 日立マクセル株式会社 磁気記録媒体
JP2631685B2 (ja) * 1988-02-29 1997-07-16 富士写真フイルム株式会社 磁気記録媒体
JP2819029B2 (ja) * 1988-09-19 1998-10-30 コニカ株式会社 磁気記録媒体
DE19714161A1 (de) * 1997-04-05 1998-10-08 Emtec Magnetics Gmbh Magnetischer Aufzeichnungsträger
US6890631B2 (en) * 2002-06-10 2005-05-10 International Business Machines Corporation Dual-surface flexible magnetic tape

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1324795A (en) * 1969-10-31 1973-07-25 Rca Corp Magnetic recording element
DE2022820C3 (de) * 1970-05-11 1980-01-03 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von hochkoerzitivem Chromdioxid
US3761311A (en) * 1971-08-23 1973-09-25 Minnesota Mining & Mfg Dual layer magnetic recording tape
US3775178A (en) * 1971-08-26 1973-11-27 Minnesota Mining & Mfg Dual-layer quadruplex video recording tape

Also Published As

Publication number Publication date
DE2556188A1 (de) 1977-06-23
DE2556188C3 (de) 1979-07-05
JPS5942375B2 (ja) 1984-10-15
DE2556188B2 (de) 1978-10-26
IT1074781B (it) 1985-04-20
US4109046A (en) 1978-08-22
FR2335017A1 (fr) 1977-07-08
JPS5273002A (en) 1977-06-18

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Legal Events

Date Code Title Description
ST Notification of lapse