PHASE PLATE AND OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE

Details for Australian Patent Application No. 2003284497 (hide)

Owner ASAHI GLASS COMPANY, LIMITED

Inventors MURAKAWA, Masahiro; MIYAKE, Yoshiyuki; OOI, Yoshiharu; MURAKAMI, Ryota; SATO, Hiromasa; NOMURA, Takuji

Pub. Number AU-A-2003284497

PCT Number PCT/JP2003/0152

PCT Pub. Number WO2004/051326

Priority 2002-348250 29.11.02 JP; 2002-348251 29.11.02 JP

Filing date 28 November 2003

Wipo publication date 23 June 2004

International Classifications

G02B 005/30 Optical elements other than lenses - Polarising elements

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

G03H 001/04 Holographic processes or apparatus using light, infra-red, or ultra-violet waves for obtaining holograms or for obtaining an image from them - Processes or apparatus for producing holograms

Event Publications

25 March 2004 Complete Application Filed

  Priority application(s): 2002-348250 29.11.02 JP; 2002-348251 29.11.02 JP

29 July 2004 Application Open to Public Inspection

  Published as AU-A-2003284497

18 August 2005 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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