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USPTO Patent Rankings Data through Sept 30, 2025
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Tomohisa Kumagai — 1 Patent in 2016

Hitachi: 1 patents #412 of 1,411Top 30%
Overall (2016): #199,474 of 481,213Top 45%
1 Patents 2016

Issued Patents 2016

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9419804 Data authenticity assurance method, management computer, and storage medium Natsuki Watanabe, Yoko Hashimoto, Kosuke Anzai, Kunihiko Miyazaki, Naoki Hayashi +2 more 2016-08-16