YT

Yutaka Toji

KC Kobelco Construction Machinery Co.: 11 patents #25 of 422Top 6%
Overall (All Time): #468,582 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
7818968 Hydraulic control device of construction machine Yoshiyasu Umezu 2010-10-26
7634961 Hydraulic circuit for construction machine Tomohiko Asakage, Masaaki Tachino, Kazuhiko Fujii 2009-12-22
7594395 Hydraulic control device for working machine Hidekazu Oka 2009-09-29
7594396 Hydraulic controller for working machine 2009-09-29
7513109 Hydraulic controller for working machine Yoichiro Yamazaki, Koji Yamashita, Hidekazu Oka, Koji Ueda 2009-04-07
7284371 Hydraulic control system for working machine Yoichiro Yamazaki, Hidekazu Oka 2007-10-23
7174711 Hydraulic control system and construction machine Takao Nanjo, Naoki Sugano, Etsujiro Imanishi, Hidekazu Oka 2007-02-13
7168246 Hydraulic control device for working machine Hidekazu Oka 2007-01-30
7155909 Hydraulic controller for working machine 2007-01-02
7131453 Hydraulic valve device and method for assembling the same Hidekazu Oka 2006-11-07
6708490 Hydraulic system for construction machine Hidekazu Oka 2004-03-23