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USPTO Patent Rankings Data through Sept 30, 2025
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Shigeru Kadomatsu, deceased

Ricoh Company: 1 patents #6,936 of 9,818Top 75%
Overall (All Time): #4,006,868 of 4,157,543Top 100%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4630123 Compact facsimile machine 1986-12-16