YK

Youichi Kowatari

HC Hitachi Construction Machinery Co.: 2 patents #4 of 56Top 8%
📍 Ibaraki, JP: #118 of 811 inventorsTop 15%
Overall (2011): #56,373 of 364,097Top 20%
2
Patents 2011

Issued Patents 2011

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7970522 Gear shifting control system for work machine Hidenobu Tsukada, Kazunori Nakamura, Masaki Yoshikawa 2011-06-28
7912616 Gear shifting control device for work machine Hidenobu Tsukada, Kazunori Nakamura, Masaki Yoshikawa 2011-03-22