MAGNETIC FILMS HAVING MAGNETIC AND NON-MAGNETIC REGIONS AND METHOD OF PRODUCING SUCH FILMS BY ION IRRADIATION

Details for Australian Patent Application No. 2002340266 (hide)

Owner JU, Ganping VAN DE VEERDONK, Rene, J., M. LEONHARDT, Todd, D. LAUGHLIN, David, E. KLEMMER, Timothy, J.

Inventors VAN DE VEERDONK, Rene, J., M.; JU, Ganping; KLEMMER, Timothy, J.; LAUGHLIN, David, E.; LEONHARDT, Todd, D.

Pub. Number AU-A-2002340266

PCT Number PCT/US02/33531

PCT Pub. Number WO2003/036626

Priority 60/337,573 22.10.01 US

Filing date 21 October 2002

Wipo publication date 6 May 2003

International Classifications

G11B 005/64 Recording by magnetisation or demagnetisation of a record carrier - comprising only the magnetic material without bonding agent

G11B 005/855 Recording by magnetisation or demagnetisation of a record carrier - Coating only part of a support with a magnetic layer

G11B 005/84 Recording by magnetisation or demagnetisation of a record carrier - Processes or apparatus specially adapted for manufacturing record carriers

Event Publications

27 February 2003 Complete Application Filed

  Priority application(s): 60/337,573 22.10.01 US

3 July 2003 Application Open to Public Inspection

  Published as AU-A-2002340266

8 July 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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