FR2353110A1 - Nouveau produit d'enregistrement magnetique et procede pour sa preparation - Google Patents

Nouveau produit d'enregistrement magnetique et procede pour sa preparation

Info

Publication number
FR2353110A1
FR2353110A1 FR7607073A FR7607073A FR2353110A1 FR 2353110 A1 FR2353110 A1 FR 2353110A1 FR 7607073 A FR7607073 A FR 7607073A FR 7607073 A FR7607073 A FR 7607073A FR 2353110 A1 FR2353110 A1 FR 2353110A1
Authority
FR
France
Prior art keywords
preparation
magnetic recording
new magnetic
recording product
product
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.)
Granted
Application number
FR7607073A
Other languages
English (en)
Other versions
FR2353110B1 (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.)
Kodak Pathe SA
Original Assignee
Kodak Pathe SA
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 Kodak Pathe SA filed Critical Kodak Pathe SA
Priority to FR7607073A priority Critical patent/FR2353110A1/fr
Priority to US05/775,118 priority patent/US4163823A/en
Priority to IT2100077A priority patent/IT1077683B/it
Priority to NL7702576A priority patent/NL7702576A/xx
Priority to BE175713A priority patent/BE852361A/fr
Priority to DE2710777A priority patent/DE2710777C2/de
Priority to GB1044777A priority patent/GB1545368A/en
Priority to JP52027546A priority patent/JPS5815846B2/ja
Publication of FR2353110A1 publication Critical patent/FR2353110A1/fr
Application granted granted Critical
Publication of FR2353110B1 publication Critical patent/FR2353110B1/fr
Priority to JP13142281A priority patent/JPS5774832A/ja
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
    • G11B5/714—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 dimension of the magnetic particles
    • 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
    • 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
    • G11B5/70642—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 iron oxides
    • 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
    • G11B5/70642—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 iron oxides
    • G11B5/70652—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 iron oxides gamma - Fe2 O3
    • 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
    • G11B5/70642—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 iron oxides
    • G11B5/70652—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 iron oxides gamma - Fe2 O3
    • G11B5/70668—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 iron oxides gamma - Fe2 O3 containing a dopant
    • G11B5/70673—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 iron oxides gamma - Fe2 O3 containing a dopant containing Co
    • 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
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249986—Void-containing component contains also a solid fiber or solid particle
    • 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
    • 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
FR7607073A 1976-03-12 1976-03-12 Nouveau produit d'enregistrement magnetique et procede pour sa preparation Granted FR2353110A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR7607073A FR2353110A1 (fr) 1976-03-12 1976-03-12 Nouveau produit d'enregistrement magnetique et procede pour sa preparation
IT2100077A IT1077683B (it) 1976-03-12 1977-03-07 Prodotto per registrazione magnetica e processo per la sua preparazione
US05/775,118 US4163823A (en) 1976-03-12 1977-03-07 Magnetic recording elements and process of preparation
BE175713A BE852361A (fr) 1976-03-12 1977-03-10 Nouveau produit d'enregistrement magnetique et procede pour sa preparation
NL7702576A NL7702576A (nl) 1976-03-12 1977-03-10 Magnetisch registratiemateriaal, alsmede werkwijze voor de vervaardiging daarvan.
DE2710777A DE2710777C2 (de) 1976-03-12 1977-03-11 Magnetisches Aufzeichnungsmaterial sowie Verfahren zur Herstellung desselben
GB1044777A GB1545368A (en) 1976-03-12 1977-03-11 Magnetic recording element
JP52027546A JPS5815846B2 (ja) 1976-03-12 1977-03-12 磁気記録要素
JP13142281A JPS5774832A (en) 1976-03-12 1981-08-21 Method of producing magnetic recording element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7607073A FR2353110A1 (fr) 1976-03-12 1976-03-12 Nouveau produit d'enregistrement magnetique et procede pour sa preparation

Publications (2)

Publication Number Publication Date
FR2353110A1 true FR2353110A1 (fr) 1977-12-23
FR2353110B1 FR2353110B1 (fr) 1979-07-20

Family

ID=9170307

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7607073A Granted FR2353110A1 (fr) 1976-03-12 1976-03-12 Nouveau produit d'enregistrement magnetique et procede pour sa preparation

Country Status (8)

Country Link
US (1) US4163823A (fr)
JP (2) JPS5815846B2 (fr)
BE (1) BE852361A (fr)
DE (1) DE2710777C2 (fr)
FR (1) FR2353110A1 (fr)
GB (1) GB1545368A (fr)
IT (1) IT1077683B (fr)
NL (1) NL7702576A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503127A2 (fr) * 1981-04-06 1982-10-08 Aimants Ugimag Sa Procede de preparation de composes magnetiques type oxydes de fer par mecano-chimie

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1591582A (en) * 1977-03-01 1981-06-24 Teijin Ltd Polyester film having slipperiness
FR2382325A1 (fr) * 1977-03-02 1978-09-29 Kodak Pathe Produit comprenant une couche d'enregistrement magnetique transparente
JPS551655A (en) * 1978-06-20 1980-01-08 Tdk Corp Base for magnetic recording tape
US4302790B1 (en) * 1979-04-11 1999-06-08 Eastman Kodak Co Magnetic recording head with effective magnetic gap length less than about 15mu inches
JPS5651026A (en) * 1979-10-02 1981-05-08 Tdk Corp Magnetic recording tape
DE3113859A1 (de) * 1980-04-07 1982-01-28 Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa Magnetisches aufzeichnungsmaterial
JPS57501053A (fr) * 1980-07-16 1982-06-10
EP0043882A1 (fr) * 1980-07-16 1982-01-20 Kodak-Pathe Elément d'enregistrement magnétique, procédé pour sa fabrication et son utilisation pour l'enregistrement
FR2498587A1 (fr) * 1980-12-16 1982-07-30 Aimants Ugimag Sa Procede de preparation de composes magnetiques par mecano-chimie
JPS5853022A (ja) * 1981-09-24 1983-03-29 Hitachi Maxell Ltd 磁気記録媒体
DE3481357D1 (de) * 1983-01-08 1990-03-15 Fuji Photo Film Co Ltd Verfahren zur herstellung eines schirmes zum speichern eines strahlungsbildes.
US4546035A (en) * 1983-06-27 1985-10-08 International Business Machines Corporation Polymeric additives for magnetic coating materials
JPS60219627A (ja) * 1984-04-17 1985-11-02 Fuji Photo Film Co Ltd 磁気記録媒体
JPS60263312A (ja) * 1984-06-09 1985-12-26 Hitachi Maxell Ltd 磁気記録媒体
US4587066A (en) * 1984-07-02 1986-05-06 Polaroid Corporation Method and apparatus for forming magnetic recording media
NL8402136A (nl) * 1984-07-05 1986-02-03 Pd Magnetics Bv Magnetisch registratie element en methode voor de vervaardiging ervan.
US4626463A (en) * 1984-09-26 1986-12-02 Minnesota Mining And Manufacturing Company Diskette having wear-resistant magnetizable layer
US4693908A (en) * 1985-08-19 1987-09-15 International Business Machines Corporation Magnetic recording disk with improved lubricant retention
JPH0760508B2 (ja) * 1985-12-10 1995-06-28 ティーディーケイ株式会社 磁気記録ディスクおよびその製造方法
US4889895A (en) * 1986-05-28 1989-12-26 Minnesota Mining And Manufacturing Company Electron beam curable copolymer useful in recording media
US4783370A (en) * 1986-05-28 1988-11-08 Minnesota Mining And Manufacturing Company Recording media containing alkyl acrylate copolymers
US4861655A (en) * 1986-09-08 1989-08-29 Memorex Corporation Thermoplastic magnetic coating composition
US5240768A (en) * 1987-06-12 1993-08-31 Minnesota Mining And Manufacturing Company Articles containing metal fibers
US5028483A (en) * 1990-06-01 1991-07-02 Minnesota Mining And Manufacturing Company Magnetic recording medium comprising acicular dendrite free iron oxide magnetic pigment particles
US5181021A (en) * 1991-01-14 1993-01-19 Eastman Kodak Co. Responder target for theft detection apparatus
US5182062A (en) * 1991-01-14 1993-01-26 Eastman Kodak Company Responder target for theft detection apparatus
US5827600A (en) * 1991-01-21 1998-10-27 Fuji Photo Film Co., Ltd. Magnetic recording medium
US5645917A (en) * 1991-04-25 1997-07-08 Fuji Photo Film Co., Ltd. Magnetic recording medium
US5705253A (en) * 1994-06-13 1998-01-06 Minnesota Mining And Manufacturing Company Video recording tapes suitable for high speed contact duplication
JP2566126B2 (ja) * 1995-05-11 1996-12-25 富士写真フイルム株式会社 磁気記録媒体
US6579592B1 (en) 1996-11-29 2003-06-17 Fuji Photo Film Co., Ltd Magnetic recording tape with controlled Hc and magnetic flux/unit area value and controlled Cl/Fe intensity
EP0962919A1 (fr) 1997-02-10 1999-12-08 Fuji Photo Film Co., Ltd. Support d'enregistrement magnetique
US6432503B2 (en) 1997-03-31 2002-08-13 Fuji Photo Film Co., Ltd. Magnetic recording medium
EP0889464B1 (fr) 1997-06-30 2003-09-03 Fuji Photo Film Co., Ltd. Support d'enregistrement magnétique
US6096406A (en) * 1997-07-15 2000-08-01 Fuji Photo Film Co., Ltd. Magnetic recording medium
JPH11185240A (ja) 1997-10-14 1999-07-09 Fuji Photo Film Co Ltd 磁気記録媒体
US6444290B1 (en) 1998-06-11 2002-09-03 Fuji Photo Film Co., Ltd. Magnetic recording medium comprising a support containing a specific size filler and having a specific concentration of surface protrusions
JP2000011352A (ja) 1998-06-22 2000-01-14 Fuji Photo Film Co Ltd 磁気記録媒体
US8465855B2 (en) * 2008-07-16 2013-06-18 International Business Machines Corporation Protective coating of magnetic nanoparticles
JP6621114B2 (ja) 2018-02-21 2019-12-18 本田技研工業株式会社 回転電機

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3398011A (en) * 1964-09-10 1968-08-20 Reeves Ind Inc Method of lubricating a coated magnetic record member
JPS503926B1 (fr) * 1968-10-23 1975-02-12
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503127A2 (fr) * 1981-04-06 1982-10-08 Aimants Ugimag Sa Procede de preparation de composes magnetiques type oxydes de fer par mecano-chimie

Also Published As

Publication number Publication date
DE2710777A1 (de) 1977-10-06
GB1545368A (en) 1979-05-10
BE852361A (fr) 1977-09-12
JPS52129408A (en) 1977-10-29
FR2353110B1 (fr) 1979-07-20
JPS5774832A (en) 1982-05-11
IT1077683B (it) 1985-05-04
US4163823A (en) 1979-08-07
NL7702576A (nl) 1977-09-14
JPS5815846B2 (ja) 1983-03-28
DE2710777C2 (de) 1982-04-15

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Legal Events

Date Code Title Description
ST Notification of lapse