"INFORMATION RECORDING MEDIUM"
Application 269/DEL/2008 published 2008-09-05, filed 2008-01-30
When recording information by using a semiconductor laser at 450 nm or less, an in formation recording medium satisfies 9.5xlO-8l/231(X*NA) 4.6x10-8 ... (1) (where X is the linear recording velocity, l. is the laser wavelength, and NA is the numerical aperture) , or 9.5x10-8 l/(x*NA) 2. 3x10-8 ... (2) where X is a linear recording velocity, l. is a laser wavelength, and NA is a numerical aperture. No. of Pages : 51 No. of Claims : 9
Applicant
1)KABUSHIKI KAISHA TOSHIBA
:1-1,SHIBAURA 1-CHOME, MINATO-KU,TOKYO,105-8001,JAPAN. Japan
Inventor
1)KAZUYO UMEZAWA 2)SEIJI MORITA 3)KOJI TAKAZAWA 4)HIDEO ANDO 5)NAOMASA NAKAMURA 6)NAOKI MORISHITA
International Info
Classification: G11B7/24; G11B7/24
Priority Information
2007-020015 Japan 2007-01-30