MA

Masatsugu Arai

HC Hitachi Construction Machinery Co.: 2 patents #21 of 149Top 15%
📍 Tsuchiura, JP: #6 of 40 inventorsTop 15%
Overall (2022): #134,625 of 548,613Top 25%
2
Patents 2022

Issued Patents 2022

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11396839 Hydraulic drive fan control device Takaaki Tanaka, Takayuki Sato, Naoki Fukuda, Jun Ikeda, Ryuji Kouno 2022-07-26
11332115 Power regeneration system of work vehicle Shintarou TANAKA, Naoki Fukuda, Takaaki Tanaka, Yukiaki Shimizu 2022-05-17