Patent Number: 6,298,034

Title: Disk-shaped information memorizing medium cartridge

Abstract: A disk-shaped information memorizing medium having as small as possible agap formed between a cartridge housing and an opening and closing door toprevent dust from entering. To this end, an opening window is providedthrough one plane portion of the cartridge housing opposing an informationmemorizing surface of an optical disk and the opening and closing door isswung along a plane of this plane portion.

Inventors: Hashimoto; Gakuji (Saitama, JP)

Assignee:

International Classification:

Expiration Date: 10/02/2013