MA

Masatsugu Arai

HC Hitachi Construction Machinery Co.: 2 patents #33 of 155Top 25%
📍 Tsuchiura, JP: #10 of 43 inventorsTop 25%
Overall (2021): #136,373 of 548,734Top 25%
2
Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11173890 Power regeneration system for work vehicle Naoki Fukuda, Yukiaki Shimizu, Takaaki Tanaka, Shintarou TANAKA 2021-11-16
11124075 Electrically driven work vehicle, and wheel electric driving unit Satoru Kaneko, Shinji Sugimoto, Takayoshi Nakamura, Tadashi Osaka, Naoki Fukuda 2021-09-21