Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
MY

Masaki Yamada

Sony: 1 patents #749 of 2,293Top 35%
Overall (2003): #160,153 of 273,478Top 60%
1 Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6587298 Device for reading and writing tape recording medium, accessing method therefor, and recording medium 2003-07-01