News wire article from our research archive:

Japanese Inventors Develop Optical Information-Recording Medium Production Method

ALEXANDRIA, Va., July 25 -- Kazuhiro Higashimaru and Kazuhiro Hayashi, both of Kadoma, Japan, Kazuya Hisada of Osaka, Japan, and Eiji Ohno of Hirakata, Japan, have developed an optically transparent layer.

According to the U.S. Patent & Trademark Office: "A method of manufacturing an optical information recording medium that has a substrate having a signal recording layer formed on one principal surface thereof; and an optically transparent layer formed on the signal recording layer and made from a radiation cure type resin. According to the method, when the optically transparent layer is formed, the radiation cure type resin is supplied onto the substrate, and the radiation cure type ...

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