OPTICAL HEAD AND OPTICAL DISK UNIT

Details for Australian Patent Application No. 2003272934 (hide)

Owner MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventors YAMASAKI, Fumitomo; ARAI, Akihiro

Pub. Number AU-A-2003272934

PCT Number PCT/JP03/12864

PCT Pub. Number WO2004/038708

Priority 2002-297293 10.10.02 JP

Filing date 8 October 2003

Wipo publication date 13 May 2004

International Classifications

G11B 007/09 Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power - with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following

G11B 007/125 Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power - Optical beam sources therefor

Event Publications

22 January 2004 Complete Application Filed

  Priority application(s): 2002-297293 10.10.02 JP

17 June 2004 Application Open to Public Inspection

  Published as AU-A-2003272934

14 July 2005 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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