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USPTO Patent Rankings Data through Sept 30, 2025
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Kazutoshi Nagatani

Sony: 1 patents #17,262 of 25,231Top 70%
Overall (All Time): #3,302,839 of 4,157,543Top 80%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7797573 Memory management method and portable terminal device Katsumi Aoyagi, Tomohiro Ichikawa, Yoshinori Motoyama, Satoshi Hirano, Toshihisa Sanbommatsu +2 more 2010-09-14