Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Osamu Kawaguchi

Hitachi: 1 patents #433 of 1,362Top 35%
Overall (2019): #322,124 of 560,194Top 60%
1 Patents 2019

Issued Patents 2019

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10394480 Storage device and storage device control method Masahiro Tsuruya, Ryo Hanafusa 2019-08-27