3912646

Information

• Patent Grant
• 3912646

• References
• Source

• Patent Number

  3,912,646

• Date Filed

  Not available

• Date Issued

  Tuesday, October 14, 1975
  49 years ago

• CPC

  • G11B5/70673 - containing Co
  • C01G49/06 - Ferric oxide (Fe2O3)
  • G11B5/70642 - iron oxides
  • G11B5/70647 - with a skin
  • G11B5/70652 - gamma - Fe2 O3
  • G11B5/70663 - Preparation processes specially adapted therefor
  • G11B5/70668 - containing a dopant
  • C01P2004/10 - extending in one dimension
  • C01P2004/54 - Particles characterised by their aspect ratio
  • C01P2004/62 - Submicrometer sized
  • C01P2006/42 - Magnetic properties

• US Classifications

  • 252 - Compositions
  • 423 - Chemistry of inorganic compounds
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER