Patent ID: 6976264
Filing Date: 2005-12-13
Classification: G11B

Abstract:
1. An optical disk adapter, comprising an external periphery having a size capable of being fitted in a 12 cm-disk placing dented portion ( 72 ) of a disk-transferring tray ( 71 ) in a disk player (P) and a positioning central aperture ( 2 ) ( 22 ) ( 32 ) ( 42 ) in which an optical disk (C 1 ) (C 2 ) (C 3 ) having a size smaller than that of a 12 cm-optical disk is fitted in a non-restricted state, a center of the positioning central aperture ( 2 ) ( 22 ) ( 32 ) ( 42 ) and that of an adapter main body ( 1 a ) being positioned concentrically, wherein the optical disk adapter is provided with a dented portion ( wherein the optical disk adapter is provided with an optical disk entering prevention protrusion (