| 摘要 |
<P>PROBLEM TO BE SOLVED: To give information unique to each optical disk at the beginning of a manufacturing process in order to improve productivity of the optical disk. <P>SOLUTION: Disclosed is an optical disk that forms a bar code including individual information for identifying the optical disk on the surface of a resin substrate of the optical disk. <P>COPYRIGHT: (C)2011,JPO&INPIT |
