Yuki Yokoyama

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Tochigi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic control device of construction machinery
- Patent number 7,992,384
- Issue date Aug 9, 2011
- Komatsu Ltd.
- Yoshiaki Itakura
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Hydraulic control device of construction machinery
- Publication number 20090056324
- Publication date Mar 5, 2009
- Yoshiaki Itakura
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
Construction target indicator device
- Publication number 20070010925
- Publication date Jan 11, 2007
- Komatsu Ltd.
- Yuki Yokoyama
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING