Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Yuuko Shimizu

Ricoh Company: 2 patents #5,693 of 9,818Top 60%
Overall (All Time): #2,088,764 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8160459 Image forming apparatus, tray ID management method, and computer-readable recording medium 2012-04-17
8154736 Image forming apparatus, tray ID allocating method thereof, computer program product, and recording medium 2012-04-10