Hitoshi Kagiwada

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Volume control valve of variable displacement hydraulic rotating ma...
- Patent number 6,389,809
- Issue date May 21, 2002
- Hitachi Construction Machinery Co., Ltd.
- Takashi Niidome
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Swash plate type hydraulic rotating machine and method of manufactu...
- Patent number 6,119,580
- Issue date Sep 19, 2000
- Hitachi Construction Machinery Co., Ltd.
- Hitoshi Sato
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Hydraulic-motor drive circuit system with anti-cavitation control
- Patent number 5,197,283
- Issue date Mar 30, 1993
- Hitachi Construction Machinery Co., Ltd.
- Hitoshi Kagiwada
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Hydraulic drive traveling system
- Patent number 5,177,964
- Issue date Jan 12, 1993
- Hitachi Construction Machinery Co., Ltd.
- Hideaki Tanaka
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING