Record medium contained in box


Application Number  00128332 Application Date  2000.11.24
Publication Number  1302060 Publication Date  2001.07.04
Priority Information   1999/11/24 JP 332627/1999  
International
Classification
 G11B7/24;G11B11/10  
Applicant(s) Name  Sony Corp.  
Address    
Inventor(s) Name  Miura Koshi;Odakiri Hirokazu  
Patent Agency Code  11038 Patent Agent  feng pu
AbstractIn a magneto-optical disc contained in a cartridge, a first dielectric layer, signal recording layer, second dielectric layer, and light reflecting layer are sequentially stacked on a substrate having formed grooves, and a first protective layer, print layer using at least one color and second protective layer are sequentially stacked on the light reflecting layer. Thickness of the second protective layer is not smaller than that of the print layer, and thickness of the first protective layer is not smaller than 2 mu m. Thus the recording medium having the print layer on at least one surface maintains a sufficient resistance to corrosion and a good slidableness.