Back to results
US 5,206,114 AGranted
Information storage medium containing a recording layer capable of exhibiting a dual phase state
AssigneeKabushiki Kaisha Toshiba
InventorTadashi Kobayashi
Life of this patent
Estimating the term…
Abstract
An information storage medium includes a substrate and a recording layer in which a portion irradiated with a light beam is subjected to a phase transformation between different phases. Upon radiation of a light beam having specific conditions, the recording layer exhibits a state in which both an amorphous phase and a non-equilibrium crystalline phase are present. This state corresponds to a recorded or erased state.
Claims20
An information storage medium comprising:
- a substrate;
- and
- a recording layer in which a portion irradiated with a light beam is subjected to a phase transformation between different phases,
- said recording layer exhibiting a dual phase state in which both an amorphous phase and a non-equilibrium crystalline phase comprising In.sub.3 SbTe.sub.2 are present, said dual phase state corresponding to a recorded or erased state.
1 more element
Dependencies are inferred from the claim text.