JPS4949898A - - Google Patents

Info

Publication number
JPS4949898A
JPS4949898A JP48057287A JP5728773A JPS4949898A JP S4949898 A JPS4949898 A JP S4949898A JP 48057287 A JP48057287 A JP 48057287A JP 5728773 A JP5728773 A JP 5728773A JP S4949898 A JPS4949898 A JP S4949898A
Authority
JP
Japan
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.)
Pending
Application number
JP48057287A
Other languages
Japanese (ja)
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
Priority claimed from IT2477372A external-priority patent/IT955797B/it
Priority claimed from IT2139873A external-priority patent/IT1045821B/it
Application filed filed Critical
Publication of JPS4949898A publication Critical patent/JPS4949898A/ja
Pending 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
    • G11B5/70626—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
    • G11B5/70636—CrO2
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00—Compounds of chromium
    • C01G37/02—Oxides or hydrates thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/42—Magnetic properties

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Hard Magnetic Materials (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
JP48057287A 1972-05-24 1973-05-24 Pending JPS4949898A ( )

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2477372A IT955797B (it) 1972-05-24 1972-05-24 Biossido di cromo stabilizzato
IT2139873A IT1045821B (it) 1973-03-09 1973-03-09 Biossido di cromo stabilizzato

Publications (1)

Publication Number Publication Date
JPS4949898A true JPS4949898A ( ) 1974-05-15

Family

ID=26327886

Family Applications (1)

Application Number Title Priority Date Filing Date
JP48057287A Pending JPS4949898A ( ) 1972-05-24 1973-05-24

Country Status (8)

Country Link
JP (1) JPS4949898A ( )
CA (1) CA1013130A ( )
CH (1) CH604343A5 ( )
DE (1) DE2325719A1 ( )
FR (1) FR2185840B1 ( )
GB (1) GB1435392A ( )
NL (1) NL7306877A ( )
SE (1) SE404274B ( )

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55132005A (en) * 1979-04-02 1980-10-14 Ken Namikawa Ferromagnetic powder and manufacture therefor
JPS56105401A (en) * 1979-12-07 1981-08-21 Ici Australia Ltd Magnetic particle protected with chromium oxide

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2386486A1 (fr) * 1977-04-07 1978-11-03 Montedison Spa Bioxyde de chrome ferromagnetique stabilise et son procede de preparation
NL8100014A (nl) * 1981-01-06 1982-08-02 Philips Nv Magnetisch registratie element alsmede methoden voor de vervaardiging ervan.
DE3610411A1 (de) * 1986-03-27 1987-10-01 Basf Ag Verfahren zur stabilisierung von nadelfoermigem ferromagnetischem chromdioxid

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3686031A (en) * 1969-11-26 1972-08-22 Du Pont Metal phosphate coated ferromagnetic chromium oxide and its preparation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55132005A (en) * 1979-04-02 1980-10-14 Ken Namikawa Ferromagnetic powder and manufacture therefor
JPH0123924B2 ( ) * 1979-04-02 1989-05-09 Ken Namikawa
JPS56105401A (en) * 1979-12-07 1981-08-21 Ici Australia Ltd Magnetic particle protected with chromium oxide
JPH0154287B2 ( ) * 1979-12-07 1989-11-17 Ai Shii Ai Oosutoraria Ltd

Also Published As

Publication number Publication date
FR2185840B1 ( ) 1976-06-11
SE404274B (sv) 1978-09-25
FR2185840A1 ( ) 1974-01-04
CH604343A5 ( ) 1978-09-15
CA1013130A (en) 1977-07-05
GB1435392A (en) 1976-05-12
NL7306877A ( ) 1973-11-27
DE2325719A1 (de) 1973-12-13

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