Owner Sony Corporation

Inventors Tanaka, Shintaro; Okawa, Naoki; Aratani, Katsuhisa

Agent Griffith Hack

Pub. Number AU-B-2002219540

PCT Pub. Number WO2002/054396

Priority 2000-402146 28.12.00 JP

Filing date 26 December 2001

Wipo publication date 16 July 2002

Acceptance publication date 29 March 2007

G11B 7/24 (2006.01) Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power - Record carriers characterised by the selection of the material or by the structure or form

G11B 7/258 (2006.01) Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power

G11B 7/00 (2006.01) Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power

G11B 7/26 (2006.01) Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power - Apparatus or processes specially adapted for the manufacture of record carriers