CA976743A - Sulfur modified ferromagnetic chromium oxide - Google Patents

Sulfur modified ferromagnetic chromium oxide

Info

Publication number
CA976743A
CA976743A CA122,999A CA122999A CA976743A CA 976743 A CA976743 A CA 976743A CA 122999 A CA122999 A CA 122999A CA 976743 A CA976743 A CA 976743A
Authority
CA
Canada
Prior art keywords
chromium oxide
ferromagnetic chromium
sulfur modified
modified ferromagnetic
sulfur
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
Application number
CA122,999A
Other languages
English (en)
Other versions
CA122999S (en
Inventor
Tadashi Kawamata
Toshihiro Mihara
Eiichi Hirota
Yukio Terada
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of CA976743A publication Critical patent/CA976743A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/16—Layers for recording by changing the magnetic properties, e.g. for Curie-point-writing
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Hard Magnetic Materials (AREA)
  • Magnetic Record Carriers (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Compounds Of Iron (AREA)
  • Paints Or Removers (AREA)
CA122,999A 1970-09-22 1971-09-16 Sulfur modified ferromagnetic chromium oxide Expired CA976743A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45083150A JPS521116B1 (show.php) 1970-09-22 1970-09-22

Publications (1)

Publication Number Publication Date
CA976743A true CA976743A (en) 1975-10-28

Family

ID=13794181

Family Applications (1)

Application Number Title Priority Date Filing Date
CA122,999A Expired CA976743A (en) 1970-09-22 1971-09-16 Sulfur modified ferromagnetic chromium oxide

Country Status (7)

Country Link
JP (1) JPS521116B1 (show.php)
CA (1) CA976743A (show.php)
DE (1) DE2147531A1 (show.php)
FR (1) FR2108364A5 (show.php)
GB (2) GB1371492A (show.php)
IT (1) IT939439B (show.php)
NL (1) NL153155B (show.php)

Also Published As

Publication number Publication date
FR2108364A5 (show.php) 1972-05-19
NL7113034A (show.php) 1972-03-24
GB1370931A (en) 1974-10-16
GB1371492A (en) 1974-10-23
IT939439B (it) 1973-02-10
NL153155B (nl) 1977-05-16
DE2147531A1 (de) 1972-05-04
JPS521116B1 (show.php) 1977-01-12

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