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
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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Magnetic Record Carriers (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Manufacturing Of Micro-Capsules (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9003120A FR2659478B1 (fr) | 1990-03-12 | 1990-03-12 | Composition magnetique et ses applications. |
PCT/FR1991/000194 WO1991014260A1 (fr) | 1990-03-12 | 1991-03-11 | 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 |
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)
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)
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 |
DE68920778T2 (de) * | 1988-05-24 | 1995-05-18 | 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. |
-
1990
- 1990-03-12 FR FR9003120A patent/FR2659478B1/fr not_active Expired - Lifetime
-
1991
- 1991-03-11 WO PCT/FR1991/000194 patent/WO1991014260A1/fr not_active Application Discontinuation
- 1991-03-11 AU AU75419/91A patent/AU7541991A/en not_active Abandoned
- 1991-03-11 EP EP19910906498 patent/EP0520006A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO1991014260A1 (fr) | 1991-09-19 |
EP0520006A1 (fr) | 1992-12-30 |
FR2659478A1 (fr) | 1991-09-13 |
AU7541991A (en) | 1991-10-10 |
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