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USPTO Patent Rankings Data through Sept 30, 2025
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Akira YONEKAWA

Hitachi: 1 patents #403 of 1,310Top 35%
Overall (2020): #558,589 of 565,922Top 100%
1 Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10615715 Power conversion device, cooling structure, power conversion system, and power supply device Yasuaki Norimatsu, Akihiko Kanouda, Yuuichi MABUCHI, Takae Shimada, Mitsuhiro KADOTA +2 more 2020-04-07