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USPTO Patent Rankings Data through Sept 30, 2025
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Ryo Tanoue — 1 Patent

Ricoh Company: 1 patents #6,936 of 9,818Top 75%
Overall (All Time): #3,650,772 of 4,157,543Top 90%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5909609 Image forming apparatus with provisions for supplying toner therein Masasumi Yahata, Shunji Kato, Yuji Kitajima, Satoshi Takano, Nobuo Kikuchi +1 more 1999-06-01