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Akira Hashimoto
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Tsuchiura-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Automatically operated shovel and stone crushing system comprising...
Patent number
6,732,458
Issue date
May 11, 2004
Hitachi Construction Machinery Co., Ltd.
Toru Kurenuma
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Automatically operated shovel and stone crushing system comprising...
Patent number
6,523,765
Issue date
Feb 25, 2003
Hitachi Construction Machinery Co., Ltd.
Toru Kurenuma
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Apparatus for diagnosing failure of hydraulic pump for work machine
Patent number
6,055,851
Issue date
May 2, 2000
Hitachi Construction Machinery Co., Ltd.
Yasuo Tanaka
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Patents Applications
last 30 patents
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Patent Application
Automatically operated shovel and stone crushing system comprising...
Publication number
20030019132
Publication date
Jan 30, 2003
HITACHI CONSTRUCTION MACHINERY CO., LTD.
Toru Kurenuma
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING