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USPTO Patent Rankings Data through Sept 30, 2025
YI

Yuichi Igarashi — 2 Patents in 2021

Hitachi: 2 patents #141 of 1,165Top 15%
Overall (2021): #94,583 of 548,734Top 20%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11190950 Communication system, communication management method, and network management apparatus Ryo Nakano, Takuma NISHIMURA 2021-11-30
11133880 Computer system, method for estimating radio wave propagation characteristic in space, and computer Hiroki Yamada, Kenzaburo Fujishima, Takashi Yano, Masami OONISHI 2021-09-28