Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
NK

Naoko Kumagai — 1 Patent in 2019

Hitachi: 1 patents #433 of 1,362Top 35%
Overall (2019): #332,088 of 560,194Top 60%
1 Patents 2019

Issued Patents 2019

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10168945 Storage apparatus and storage system Norihiko Kawakami 2019-01-01