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)

Applications Claiming Priority (1)

Publications (2)

Family

ID=13794181

Family Applications (1)

Country Status (7)

• 1970
  • 1970-09-22 JP JP45083150A patent/JPS521116B1/ja active Pending
• 1971
  • 1971-09-16 CA CA122,999A patent/CA976743A/en not_active Expired
  • 1971-09-20 DE DE19712147531 patent/DE2147531A1/de active Pending
  • 1971-09-20 IT IT52966/71A patent/IT939439B/it active
  • 1971-09-21 FR FR7133963A patent/FR2108364A5/fr not_active Expired
  • 1971-09-22 NL NL717113034A patent/NL153155B/xx not_active IP Right Cessation
  • 1971-09-22 GB GB2249374A patent/GB1371492A/en not_active Expired
  • 1971-09-22 GB GB4420971A patent/GB1370931A/en not_active Expired

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