RK

Ryotaro KAWAHARA

HI Hitachi: 2 patents #13,388 of 28,497Top 50%
Overall (All Time): #1,736,122 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12411547 Pressure sensor device, method for manufacturing the same, and work management system using the same Ryohei Matsui, Tetsufumi Kawamura, Nobuyuki Sugii, Naoko Ushio, Hiroyuki Yoshimoto 2025-09-09
11835412 Delicate work tool digitalization system Hiroyuki Yoshimoto, Ryohei Matsui, Nobuyuki Sugii, Tsuneya Kurihara, Hirohiko Sagawa +3 more 2023-12-05