Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Nobuo Bamba

Ricoh Company: 1 patents #6,936 of 9,818Top 75%
San Jose, CA: #22,480 of 32,062 inventorsTop 75%
California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #3,993,135 of 4,157,543Top 100%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4580151 Optical scanning apparatus 1986-04-01