BE729304A - - Google Patents

Info

Publication number
BE729304A
BE729304A BE729304DA BE729304A BE 729304 A BE729304 A BE 729304A BE 729304D A BE729304D A BE 729304DA BE 729304 A BE729304 A BE 729304A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE729304A publication Critical patent/BE729304A/xx

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
    • G11B5/70605—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 metals or alloys
    • G11B5/70615—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 metals or alloys containing Fe metal or alloys
    • 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
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/06—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/065—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder obtained by a reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Hard Magnetic Materials (AREA)
  • Soft Magnetic Materials (AREA)
BE729304D 1968-03-05 1969-03-03 BE729304A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6803123A NL6803123A (enrdf_load_stackoverflow) 1968-03-05 1968-03-05

Publications (1)

Publication Number Publication Date
BE729304A true BE729304A (enrdf_load_stackoverflow) 1969-09-03

Family

ID=19802944

Family Applications (1)

Application Number Title Priority Date Filing Date
BE729304D BE729304A (enrdf_load_stackoverflow) 1968-03-05 1969-03-03

Country Status (7)

Country Link
US (1) US3607219A (enrdf_load_stackoverflow)
AT (1) AT306763B (enrdf_load_stackoverflow)
BE (1) BE729304A (enrdf_load_stackoverflow)
CH (1) CH515331A (enrdf_load_stackoverflow)
FR (1) FR2003248A1 (enrdf_load_stackoverflow)
GB (1) GB1204991A (enrdf_load_stackoverflow)
NL (1) NL6803123A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2130921A1 (de) * 1970-06-23 1971-12-30 Sony Corp Verfahren zur Herstellung von Magnetpulver

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207092A (en) * 1977-03-03 1980-06-10 E. I. Du Pont De Nemours And Company Acicular α-iron particles, their preparation and recording media employing same
JPS5813008B2 (ja) * 1977-10-06 1983-03-11 日本ビクター株式会社 磁性鉄粉の製造方法
US4310349A (en) * 1979-02-02 1982-01-12 Ampex Corporation Highly orientable iron particles
US4316738A (en) * 1979-02-02 1982-02-23 Ampex Corporation Economical process for producing metal particles for magnetic recording
US4273807A (en) * 1979-03-19 1981-06-16 E. I. Du Pont De Nemours And Company Acicular α-iron particles and recording media employing same
US4318734A (en) * 1980-02-25 1982-03-09 Ampex Corporation Reduction of iron oxide utilizing dehydrating agent
JPS5980901A (ja) * 1982-11-01 1984-05-10 Fuji Photo Film Co Ltd 強磁性金属粉末の製造法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3005701A (en) * 1957-10-15 1961-10-24 Bethlehem Steel Corp Method of making melting stock by direct reduction
US3347659A (en) * 1965-05-19 1967-10-17 Hydrocarbon Research Inc Process of reducing iron oxide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2130921A1 (de) * 1970-06-23 1971-12-30 Sony Corp Verfahren zur Herstellung von Magnetpulver

Also Published As

Publication number Publication date
AT306763B (de) 1973-04-25
NL6803123A (enrdf_load_stackoverflow) 1969-09-09
US3607219A (en) 1971-09-21
GB1204991A (en) 1970-09-09
CH515331A (de) 1971-11-15
DE1906531A1 (de) 1969-10-02
FR2003248A1 (enrdf_load_stackoverflow) 1969-11-07
DE1906531B2 (de) 1977-01-20

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