YT

Yoneaki Takahashi

KC Kayaba Industry Co.: 2 patents #82 of 326Top 30%
HC Hitachi Construction Machinery Co.: 1 patents #701 of 1,234Top 60%
Overall (All Time): #2,312,949 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5168705 Hydraulic drive system Toichi Hirata, Hideaki Tanaka, Kazunori Nakamura, Hideshi Koiwai 1992-12-08
4836245 Control valve Keiji Sekikawa 1989-06-06