YY

Yoichiro Yamazaki

KC Kobelco Construction Machinery Co.: 53 patents #1 of 422Top 1%
AC Asahi Intecc Co.: 1 patents #72 of 155Top 50%
GI Gs Yuasa International: 1 patents #283 of 491Top 60%
Overall (All Time): #48,027 of 4,157,543Top 2%
53
Patents All Time

Issued Patents All Time

Showing 51–53 of 53 patents

Patent #TitleCo-InventorsDate
7849685 Control device for hydraulic cylinder and operating machine including control device Nobuyoshi Hataoka, Hiroshi Togo 2010-12-14
7513109 Hydraulic controller for working machine Yutaka Toji, Koji Yamashita, Hidekazu Oka, Koji Ueda 2009-04-07
7284371 Hydraulic control system for working machine Yutaka Toji, Hidekazu Oka 2007-10-23