Katten Muchin Zavis Rosenman
Optical information recording medium for recording optically reproducible signals thereon through the use of a recording laser beam and method for recording optical information thereon
An optical information recording medium provides a high reflectance of a laser beam and thus enables an accurate tracking servo. The optical information recording medium, for recording optically readable signals thereon through the use of a recording laser beam, includes a light transmitting substrate, a tracking groove formed on a surface of the light transmitting substrate, a land formed between two neighboring tracks of the tracking groove, a recording layer formed on a surface of the light transmitting substrate on which the tracking groove and the land are provided, and a reflective layer formed on the recording layer for reflecting the recording laser beam. A top width D of the land is arranged to be within the range of about 0.30&lE;D&lE;0.45 &mgr;m.
Taiyo Yuden Co., Ltd.
G G
G11B G11B
inventional inventional
Toshiaki Ryou Toru Yuji Emiko
Tajima Negishi Fujii Tomizawa Hamada