Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Yukihiko Yamamoto

SOSony: 2 patents #12,963 of 25,231Top 55%
Overall (All Time): #2,255,174 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5990971 Picture-display-region discriminating apparatus Kenzo Nakai 1999-11-23
5844624 Television receiver Kenzo Nakai 1998-12-01