Owner FUJITSU LIMITED

Inventors HOSOKAWA, Tetsuo

Pub. Number AU-A-2002304136

PCT Number PCT/JP02/05382

PCT Pub. Number WO2003/102943

Filing date 31 May 2002

Wipo publication date 19 December 2003

G11B 011/105 Recording on, or reproducing from, the same record carrier wherein for these two operations the methods or means are covered by different main groups of groups or by different subgroups of group

G11B 007/24 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 007/007 Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power - Arrangement of the information on the record carrier, e.g. form of tracks