YU

Yoshiyasu Umezu

KC Kobelco Construction Machinery Co.: 8 patents #36 of 422Top 9%
Overall (All Time): #651,933 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
8405328 Slewing control device and working machine incorporated with the same Masayuki Komiyama, Natsuki Yumoto, Masayuki Kogashima 2013-03-26
7818968 Hydraulic control device of construction machine Yutaka Toji 2010-10-26
7523804 Small swing type shovel Kiyokazu Tanaka, Shintaro Sakitani, Takayuki Okunishi, Hiroshi Morita, Hiroshi Shimokakiuchi 2009-04-28
7500535 Control device for construction machine Yoshiki Kamon, Tomohiko Asakage, Norihiko Hayashi 2009-03-10
7497195 Engine control device of construction machinery Yoshiki Kamon 2009-03-03
7191758 Engine control device of construction machinery 2007-03-20
7174968 Hydraulic excavator Takayuki Okunishi, Shinya Nakata, Hiroshi Shimokakiuchi, Hiroshi Morita, Shintaro Sakitani 2007-02-13
7001135 Construction machine Hiroshi Shimokakiuchi, Hiroshi Morita, Shintaro Sakitani, Kenta Kojima, Takayuki Okunishi +2 more 2006-02-21