Patent ID: 7366081

Claim:
An information recording medium including a recording layer that is formed of a single layer of a single type of recording material and is directly sandwiched by a pair of resin layers, the information recording medium being constructed so that at least one resin layer out of the pair of resin layers deforms due to deformation of the recording layer that is caused by irradiation with laser light for recording data and a track pitch is in a range of 0.1 μm to 0.5 μm, inclusive, wherein: the pair of resin layers are formed with respective Young's moduli in a range of 415 MPa to 7100 MPa, inclusive; and the recording material is formed of a material that includes elements Bi and O as main components and in which the proportion of O atoms with respect to the total number of Bi and O atoms is in a range of 63% to 77%, inclusive.