FR2659478B1 - Composition magnetique et ses applications. - Google Patents

Composition magnetique et ses applications.

Info

Publication number
FR2659478B1
FR2659478B1 FR9003120A FR9003120A FR2659478B1 FR 2659478 B1 FR2659478 B1 FR 2659478B1 FR 9003120 A FR9003120 A FR 9003120A FR 9003120 A FR9003120 A FR 9003120A FR 2659478 B1 FR2659478 B1 FR 2659478B1
Authority
FR
France
Prior art keywords
applications
magnetic composition
magnetic
composition
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
FR9003120A
Other languages
English (en)
Other versions
FR2659478A1 (fr
Inventor
Escaffre Pascale
Dussaud Joseph
Massart Rene
Cabuil Valerie
Neveu Sophie
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.)
VICAT CIMENTS
Original Assignee
VICAT CIMENTS
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 VICAT CIMENTS filed Critical VICAT CIMENTS
Priority to FR9003120A priority Critical patent/FR2659478B1/fr
Priority to EP19910906498 priority patent/EP0520006A1/fr
Priority to AU75419/91A priority patent/AU7541991A/en
Priority to PCT/FR1991/000194 priority patent/WO1991014260A1/fr
Publication of FR2659478A1 publication Critical patent/FR2659478A1/fr
Application granted granted Critical
Publication of FR2659478B1 publication Critical patent/FR2659478B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • H01F41/16—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates the magnetic material being applied in the form of particles, e.g. by serigraphy, to form thick magnetic films or precursors therefor
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/06187—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with magnetically detectable marking
    • 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
    • G11B5/712—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 surface treatment or coating of magnetic particles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
FR9003120A 1990-03-12 1990-03-12 Composition magnetique et ses applications. Expired - Lifetime FR2659478B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR9003120A FR2659478B1 (fr) 1990-03-12 1990-03-12 Composition magnetique et ses applications.
EP19910906498 EP0520006A1 (fr) 1990-03-12 1991-03-11 Composition magnetique et ses applications
AU75419/91A AU7541991A (en) 1990-03-12 1991-03-11 Magnetic composition and its applications
PCT/FR1991/000194 WO1991014260A1 (fr) 1990-03-12 1991-03-11 Composition magnetique et ses applications

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9003120A FR2659478B1 (fr) 1990-03-12 1990-03-12 Composition magnetique et ses applications.

Publications (2)

Publication Number Publication Date
FR2659478A1 FR2659478A1 (fr) 1991-09-13
FR2659478B1 true FR2659478B1 (fr) 1993-09-03

Family

ID=9394628

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9003120A Expired - Lifetime FR2659478B1 (fr) 1990-03-12 1990-03-12 Composition magnetique et ses applications.

Country Status (4)

Country Link
EP (1) EP0520006A1 (fr)
AU (1) AU7541991A (fr)
FR (1) FR2659478B1 (fr)
WO (1) WO1991014260A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4115608A1 (de) * 1991-05-14 1992-11-19 Basf Ag Magnetisches tintenkonzentrat
DE4213513A1 (de) * 1992-04-24 1993-10-28 Basf Ag Magnetodilatante Suspensionen
US6773765B1 (en) * 1999-11-04 2004-08-10 The Research Foundation Of State University Of New York Thermally sprayed, flexible magnet with an induced anisotropy
US6779113B1 (en) 1999-11-05 2004-08-17 Microsoft Corporation Integrated circuit card with situation dependent identity authentication
JP3961887B2 (ja) * 2002-06-10 2007-08-22 富士通株式会社 垂直磁気記録媒体の製造方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1357214A (fr) * 1963-03-29 1964-04-03 California Research Corp Particules ferromagnétiques de cobalt
US3281344A (en) * 1963-08-27 1966-10-25 Chevron Res Colloidal suspension of ferromagnetic iron particles
ATE117829T1 (de) * 1988-05-24 1995-02-15 Anagen Uk Ltd Magnetisch anziehbare teilchen und herstellungsverfahren.
ES2009404A6 (es) * 1988-11-24 1989-09-16 Quintela Manuel Arturo Lopez Procedimiento para a obtencion de particulas magneticas ultrafinas de nd-fe-b de diferentes tamanos.

Also Published As

Publication number Publication date
AU7541991A (en) 1991-10-10
WO1991014260A1 (fr) 1991-09-19
EP0520006A1 (fr) 1992-12-30
FR2659478A1 (fr) 1991-09-13

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