Shigehiro Yoshinaga

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Ibaraki-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Output correcting method in control system, control system, and hyd...
- Patent number 6,101,456
- Issue date Aug 8, 2000
- Hitachi Construction Machinery Co., Ltd.
- Youichi Kowatari
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Pump torque control system
- Patent number 5,934,879
- Issue date Aug 10, 1999
- Hitachi Construction Machinery Co., Ltd.
- Shigetoshi Konno
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Hydraulic control system for hydraulic working machine
- Patent number 5,813,311
- Issue date Sep 29, 1998
- Hitachi Construction Machinery Co., Ltd.
- Tsukasa Toyooka
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Burglarproof device for hydraulic machine
- Patent number 5,632,190
- Issue date May 27, 1997
- Hitachi Construction Machinery Co., Ltd.
- Kazuhiro Sunamura
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Hydraulic pump control system
- Patent number 5,575,148
- Issue date Nov 19, 1996
- Hitachi Construction Machinery Co., Ltd.
- Toichi Hirata
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING