Kazuyoshi Yamada

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Kouka-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Swivel joint for construction machine
- Patent number 7,798,738
- Issue date Sep 21, 2010
- Hitachi Construction Machinery Co., Ltd.
- Junya Kawamoto
- B66 - HOISTING LIFTING HAULING
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
Information Patent Grant
Swing type hydraulic excavator
- Patent number 5,975,833
- Issue date Nov 2, 1999
- Hitachi Construction Machinery Co., Ltd.
- Kazuyoshi Yamada
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Position/force controlling apparatus for working machine with multi...
- Patent number 5,129,044
- Issue date Jul 7, 1992
- Hitachi Construction Machinery Co., Ltd.
- Kunio Kashiwagi
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Profiling control system for given curved surface
- Patent number 4,987,356
- Issue date Jan 22, 1991
- Hitachi Construction Machinery Co., Ltd.
- Kazuyoshi Yamada
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

Information Patent Application
Swivel joint for construction machine
- Publication number 20070024052
- Publication date Feb 1, 2007
- Hitachi Construction Machinery Co., Ltd.
- Junya Kawamoto
- B66 - HOISTING LIFTING HAULING
Information Patent Application
Construction machinery
- Publication number 20030110669
- Publication date Jun 19, 2003
- Osamu Watanabe
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING