| US 7,510,753 B2 | ||
| Phase-change optical recording media | ||
| Tsukasa Nakai, Hino (Japan); Sumio Ashida, Yokohama (Japan); Keiichiro Yusu, Yokohama (Japan); Noritake Oomachi, Yokohama (Japan); and Naomasa Nakamura, Yokohama (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan) | ||
| Filed on Sep. 27, 2005, as Appl. No. 11/235,666. | ||
| Claims priority of application No. 2004-290675 (JP), filed on Oct. 01, 2004. | ||
| Prior Publication US 2006/0146687 A1, Jul. 06, 2006 | ||
| Int. Cl. B32B 3/02 (2006.01) | ||
| U.S. Cl. 428—64.4 [428/64.5; 428/64.6; 430/270.13] | 13 Claims |
| 1. A phase-change optical recording medium comprising:
a recording film that causes reversible phase-change between a crystalline phase and an amorphous phase on irradiation with
light; and
an interface film formed in contact with at least one surface of the recording film and having a composition represented by
the following formula:
HfO2−xNx,
where 0<x≤0.5.
|