摘要 |
<p>Provided is an optical recording medium that comprises two layers of a first information recording layer and a second information recording layer; the first information recording layer and the second information recording layer are laminated through an intermediate layer; wherein the two layers are recorded and regenerated by action of laser light irradiated from the side of the first information recording layer, the second information recording layer comprises a light reflective layer, a dye recording layer, and an inorganic protective layer on a substrate, and the substrate comprises wobble convex portions on its surface, the inorganic protective layer has a thickness of 3 nm to 40 nm, the dye recording layer comprises a cyanine compound expressed by General Formula (I) and a squarylium compound expressed by General Formula (II):</p> |
申请人 |
RICOH COMPANY, LTD.;KYOWA HAKKO CHEMICAL CO., LTD.;NAKAMURA, YUKI;HAYASHI, MASAHIRO;MIZUKAMI, SATOSHI;YASHIRO, TOHRU |
发明人 |
NAKAMURA, YUKI;HAYASHI, MASAHIRO;MIZUKAMI, SATOSHI;YASHIRO, TOHRU |