INFORMATION RECORDING MEDIUM AND MASTER EXPOSING DEVICE

• Main Authors: SASAKI HIDEHIRO, KIYONO KENJIRO, KUBO MASAE
• Format: Patent
• Language: English
• Published: 30.10.2008
• Subjects: INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; PHYSICS

PROBLEM TO BE SOLVED: To realize stable focus servo and tracking servo in an information recording medium having a plurality of recording regions of different track pitches and groove shapes. SOLUTION: A recording track formed by a convex/concave pattern includes first and second recording regions R...