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USPTO Patent Rankings Data through Sept 30, 2025
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Seiichi Tamura — 26 Patents

Canon: 26 patents #2,250 of 19,416Top 15%
Overall (All Time): #154,308 of 4,157,543Top 4%
26 Patents All Time

Issued Patents All Time

Showing 26–26 of 26 patents

Patent #TitleCo-InventorsDate
6070968 Ink jet cartridge and apparatus having a substrate with grooves which contain heat generating elements Yutaka Akino, Kenji Makino, Akira Okita 2000-06-06