Naohiro Ishikawa

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Kouga, JP

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Patents Grantslast 30 patents

Information Patent Grant
Construction machine
- Patent number 6,922,925
- Issue date Aug 2, 2005
- Hitachi Construction Machinery Co., Ltd.
- Osamu Watanabe
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

Information Patent Application
Construction machinery
- Publication number 20030110669
- Publication date Jun 19, 2003
- Osamu Watanabe
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING