Hiroki ISHII

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Tsuchiura-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Work machine
- Patent number 11,391,020
- Issue date Jul 19, 2022
- Hitachi Construction Machinery Co., Ltd.
- Hiroki Ishii
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

Information Patent Application
WORK MACHINE
- Publication number 20230332379
- Publication date Oct 19, 2023
- Hitachi Construction Machinery Co., Ltd.
- Hiroki ISHII
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
WORK MACHINE
- Publication number 20230304261
- Publication date Sep 28, 2023
- Hitachi Construction Machinery Co., Ltd.
- Hiroki ISHII
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
Work Machine
- Publication number 20220154741
- Publication date May 19, 2022
- Hitachi Construction Machinery Co., Ltd.
- Hiroki ISHII
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL