MA

Masatsugu Arai

HC Hitachi Construction Machinery Co.: 2 patents #26 of 148Top 20%
📍 Tsuchiura, JP: #7 of 33 inventorsTop 25%
Overall (2025): #105,626 of 469,880Top 25%
2
Patents 2025

Issued Patents 2025

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12221774 Operation record analysis system for construction machine Yoshibumi Fukuda, Takuya Naka, Koutarou Masuda 2025-02-11
12187130 Electric vehicle Mitsuhiro KADOTA, Atsushi Kitaguchi, Naoki Fukuda 2025-01-07