Sharp Kabushiki Kaisha Corporation

Nobuyuki Usui

Toshiyuki Tanaka

Mitsunobu Yoshida

Akira Takahashi

Hideharu Tajima

Tomoyuki Miyake

Nobuyuki Takamori

Toshihiro Tamura

Toshiharu Inui

A disk cartridge having a small size and a sufficient portability. The disk cartridge has a size of 58 mm (L)&#xd7;54 mm (L)&#xd7;4 mm (L), a thickness less than 5 mm and a small area less than a square of 65 mm. The disk cartridge has a notch 10 formed on the insertion side and having a width of 2 mm (L) and a length of 27.5 mm (i.e., a taper portion of 6 mm (L)+a straight portion of 21.5 mm (L)).

Disk cartridge

A disc cartridge includes at least a magneto-optical disc and a cartridge (upper shell) storing the magneto-optical disc in a rotatable manner and having an opening provided in a region including a position corresponding to a predetermined rotation center of the magneto-optical disc. The opening is longer on a forward side in the disc cartridge insertion direction (on the Y-direction side) with respect to the position corresponding to the rotation center than on a backward side in the disc cartridge insertion direction (on the X-direction side) along a straight line passing through the position corresponding to the rotation center and parallel to the disc cartridge insertion direction. Thus, a disc cartridge and a disc unit which are constructed to allow the disc cartridge to be smoothly loaded are provided.

Disc cartridge and disc apparatus

Growing community of inventors

Tenri, Japan

Nobuyuki Usui