RK

Rintaro Katayama

HI Hitachi: 2 patents #55 of 745Top 8%
Overall (2023): #115,558 of 537,848Top 25%
2
Patents 2023

Issued Patents 2023

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11659431 Traffic control method, receiver, and communication system Daisuke Ishii, Ryosuke Fujiwara 2023-05-23
11544111 Sensor device, sensor device management system, and sensor device management method Ryosuke Fujiwara, Kenichi Mizugaki 2023-01-03