Patent ID: 6874157
Filing Date: 2005-03-29
Classification: G11B

Abstract:
1. A disk case adapted for accommodating an exchange of a disk-recording medium, comprising: an upper case body having a first opening part for performing recording to or reproduction from said recording medium, said first opening part including a first parallel opening part having sides extending in a predetermined substantially parallel direction from an outer side of said upper case body to a central portion of the upper case body so as to connect to a first semicircular part located at the central portion of said upper case body; and a lower case body having a second opening part for performing recording to or reproduction from said recording medium, said lower case body being oppositely arranged to said upper case so that the recording medium can be accommodated between the upper case body and the lower case body, said second opening part being oppositely arranged to said first opening part, said second opening part including a second parallel opening part having sides extending in a predetermined substantially parallel direction from an outer side of said lower case body to a central portion of the lower case body so as to connect to a second semicircular part located at the central portion of said lower case body, wherein said first parallel opening part and said second parallel opening part are formed so that widths of said first parallel opening part and said second parallel opening part are wider than widths of said first and second semicircular parts, such that the recording medium is always exposed to the outside of said disk case; and the upper case body and the lower case body have outline shapes comprising: a pair of substantially parallel straight line parts oppositely provided and mutually parallel with said first and second parallel opening parts; and a pair of rounded parts oppositely provided and connected to the pair of substantially parallel straight line parts, and each of said rounded parts has a larger radius than that the recording medium when the upper case body and the lower case body are projected on a plane substantially parallel to the recording medium.