Owner Matsushita Electric Industrial Co., Ltd.

Inventors KAWAGUCHI, Yuko; ABE, Shinya; TOMIYAMA, Morio; OHNO, Eiji; Ohno, Eiji; Tomiyama, Morio; Abe, Shinya; Kawaguchi, Yoko

Agent Davies Collison Cave

Pub. Number AU-A-2004214550

PCT Pub. Number WO2004/093066

Priority 2003-108549 14.04.03 JP; 2003-108549 14.04.03 JP

Filing date 16 March 2004

Wipo publication date 28 October 2004

Acceptance publication date 17 March 2005

G11B 007/005 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 007/26 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

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

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

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