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

Keiji Hamada — 3 Patents in 2021

HSHitachi Automotive Systems: 2 patents #80 of 454Top 20%
HAHitachi Astemo: 1 patents #13 of 108Top 15%
Overall (2021): #75,133 of 548,734Top 15%
3 Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11052841 Electric drive device and electric power steering device Masao Fujimoto, Tomio SAKASHITA 2021-07-06
11040738 Electric drive device and electric power steering device Masao Fujimoto 2021-06-22
10965181 Electric drive device and electric power steering device 2021-03-30