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
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
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
Expired 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
    • G11B5/70605—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)
  • Hard Magnetic Materials (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Soft Magnetic Materials (AREA)
BE729304D 1968-03-05 1969-03-03 Expired BE729304A (fr)

Applications Claiming Priority (1)

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

Publications (1)

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

Family

ID=19802944

Family Applications (1)

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

Country Status (7)

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

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

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