3874923

Information

• Patent Grant
• 3874923

• References
• Source

• Patent Number

  3,874,923

• Date Filed

  Not available

• Date Issued

  Tuesday, April 1, 1975
  49 years ago

• CPC

  • G11B5/70636 - CrO2
  • C01G37/02 - Oxides or hydrates thereof
  • C01G37/027 - Chromium dioxide
  • C01P2002/72 - by d-values or two theta-values
  • C01P2002/74 - by peak-intensities or a ratio thereof only
  • C01P2002/82 - by IR- or Raman-data
  • C01P2004/10 - extending in one dimension
  • C01P2004/54 - Particles characterised by their aspect ratio
  • C01P2004/62 - Submicrometer sized
  • C01P2006/42 - Magnetic properties
  • C01P2006/82 - water content

• US Classifications

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