Masayuki HAGIWARA

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic drive system for work machine
- Patent number 11,208,787
- Issue date Dec 28, 2021
- Hitachi Construction Machinery Co., Ltd.
- Masayuki Hagiwara
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Hydraulic Drive System for Work Machine
- Publication number 20210054592
- Publication date Feb 25, 2021
- Hitachi Construction Machinery Co., Ltd.
- Masayuki HAGIWARA
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING