OPTICAL HEAD, DISC RECORDING/ REPRODUCING APPARATUS, AND OBJECTIVE LENS DRIVE METHOD

Details for Australian Patent Application No. 2002255328 (hide)

Owner MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventors NAKATA, Hideki; TOMITA, Hironori; TANAKA, Toru; OKAMURA, Koji; SUMIDA, Katutoshi

Pub. Number AU-A-2002255328

PCT Pub. Number WO2002/093568

Priority 2001-141213 11.05.01 JP

Filing date 9 May 2002

Wipo publication date 25 November 2002

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

Event Publications

1 May 2003 Application Open to Public Inspection

  Published as AU-A-2002255328

4 March 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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