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USPTO Patent Rankings Data through Sept 30, 2025
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Tachio Kawai — 1 Patent in 2022

Canon: 1 patents #1,410 of 3,631Top 40%
Overall (2022): #240,890 of 548,613Top 45%
1 Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11520286 Cartridge and image forming apparatus Yuichi Sakakibara, Yosuke Kashiide, Hiroyuki Munetsugu, Yuko Harada, Goshi Ozaki +6 more 2022-12-06