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Junsei Tanaka
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Hirakata-shi, JP
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Patents Grants
last 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
Information
Patent Grant
Hydraulic pressure control device of construction machine
Patent number
7,520,130
Issue date
Apr 21, 2009
Komatsu Ltd.
Junsei Tanaka
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Construction equipment
Patent number
6,725,581
Issue date
Apr 27, 2004
Komatsu Ltd.
Masami Naruse
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Patents Applications
last 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
Hydraulic pressure control device of construction machine
Publication number
20070125078
Publication date
Jun 7, 2007
Junsei Tanaka
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Application
Construction equipment
Publication number
20030221339
Publication date
Dec 4, 2003
Komatsu Ltd.
Masami Naruse
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING