PHASE CORRECTION ELEMENT AND OPTICAL HEAD DEVICE

Details for Australian Patent Application No. 2003252288 (hide)

Owner ASAHI GLASS COMPANY, LIMITED

Inventors MIYAMURA, Masao; OOI, Yoshiharu; MURAKAWA, Masahiro; SATO, Hiromasa

Pub. Number AU-A-2003252288

PCT Number PCT/JP03/09746

PCT Pub. Number WO2004/012188

Priority 2002-295731 09.10.02 JP; 2002-372435 24.12.02 JP; 2002-223085 31.07.02 JP; 2002-248835 28.08.02 JP; 2002-251911 29.08.02 JP

Filing date 31 July 2003

Wipo publication date 16 February 2004

International Classifications

G11B 007/135 Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power - Means for guiding the beam from source to record carrier or from record carrier to detector

Event Publications

16 October 2003 Complete Application Filed

  Priority application(s): 2002-295731 09.10.02 JP; 2002-372435 24.12.02 JP; 2002-223085 31.07.02 JP; 2002-248835 28.08.02 JP; 2002-251911 29.08.02 JP

25 March 2004 Application Open to Public Inspection

  Published as AU-A-2003252288

28 April 2005 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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