Patent Number: 8,576,681

Title: Optical information recording medium, optical information recording apparatus and optical information recording method

Abstract: An optical information recording medium includes a recording layer in which a track is formed, the track having recording marks linearly arranged thereon. Each recording mark has a dimension corresponding to a reference mark length, which serves as a reference, in a track direction along which the track extends, the dimension being smaller than dimensions of the recording mark in two directions perpendicular to the track direction.

Inventors: Fujita; Goro (Kanagawa, JP), Iwamura; Takashi (Kanagawa, JP)

Assignee: Sony Corporation

International Classification: G11B 7/00 (20060101)

Expiration Date: 1/05/12017