To provide an optical information recording medium affording good recording and reproduction characteristics and good light resistance in recording and reproduction by irradiation of a short-wavelength laser beam and a novel compound suitable for use as a dye in a recording layer of the optical information recording medium.
The optical information recording medium comprises the recording layer on the surface of a support having pregrooves with a track pitch ranging from 50 to 500 nm on the surface thereof. The recording layer comprises an azo metal complex dye which is a complex of azo dyes and transition metal ions, whose number is equal to or greater than the number of the azo dyes, and comprises two or more transition metal ions in one molecule thereof.
COPYRIGHT: (C)2009,JPO&INPIT
Tetsuya Watanabe
Taro Hashizume
Katsushi Ogiyama
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