Shigetaka Nakamura

Person

Tsuchiura, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Hydraulic control apparatus for hydraulic construction machine
- Patent number 5,307,631
- Issue date May 3, 1994
- Hitachi Construction Machinery Co., Ltd.
- Akira Tatsumi
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Load sensing control system for hydraulic machine
- Patent number 5,285,642
- Issue date Feb 15, 1994
- Hitachi Construction Machinery Co., Ltd.
- Hiroshi Watanabe
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Control system for hydraulic pump
- Patent number 5,170,625
- Issue date Dec 15, 1992
- Hitachi Construction Machinery Co., Ltd.
- Hiroshi Watanabe
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Variable displacement bent axis type hydraulic machine
- Patent number 5,085,128
- Issue date Feb 4, 1992
- Hitachi Construction Machinery Co., Ltd.
- Shigetaka Nakamura
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Hydraulic drive system for construction machines
- Patent number 5,056,312
- Issue date Oct 15, 1991
- Hitachi Construction Machinery Co., Ltd.
- Toichi Hirata
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Control system for controlling input power to variable displacement...
- Patent number 4,809,504
- Issue date Mar 7, 1989
- Hitachi Construction Machinery Co., Ltd.
- Eiki Izumi
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Shigetaka Nakamura

Person

Patents Grantslast 30 patents

Hydraulic control apparatus for hydraulic construction machine

Load sensing control system for hydraulic machine

Control system for hydraulic pump

Variable displacement bent axis type hydraulic machine

Hydraulic drive system for construction machines

Control system for controlling input power to variable displacement...