TU

Tsutomu Udagawa

HC Hitachi Construction Machinery Co.: 2 patents #31 of 136Top 25%
📍 Tsukuba, JP: #36 of 392 inventorsTop 10%
Overall (2019): #110,383 of 560,194Top 20%
2
Patents 2019

Issued Patents 2019

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10400797 Hydraulic control system for working machine Hiroaki Tanaka, Yasutaka Tsuruga, Kazunori Nakamura 2019-09-03
10330128 Hydraulic control system for work machine Hidekazu Moriki, Shinya Imura, Ryohei Yamashita, Kouji Ishikawa 2019-06-25