Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Optical pickup apparatus and optical recording medium drive employing the same including a first photo receiving element for detecting the state of light beam and a second photo receiving element for reproducing information

US Patent 6212150 · Granted Apr 3, 2001

Estimated economic value: $5,000

Assignee

Inventors

View full patent text on Google Patents →