| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical disk cartridge that allows a user to reliably discriminate between an upper surface and a lower surface of a case when the user puts a bare disk into the case so as to make the optical disk cartridge. <P>SOLUTION: An optical disk cartridge comprises: cases 2a and 2b having an opening 2c for accommodating an optical disk; and an opening/closing lid 4 for closing the opening 2c. In the optical disk cartridge, one end of the opening/closing lid 4 is mounted in a rotatable manner to an end portion of the opening 2c by means of a shaft 4a, and a stepped portion 7 is arranged such that a wall thickness of the opening/closing lid 4 in a label surface side of the optical disk that is accommodated into a case becomes thin at a shaft 4a side. <P>COPYRIGHT: (C)2012,JPO&INPIT |
