Daisuke OKA

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Yasu-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Construction machine
- Patent number 11,332,911
- Issue date May 17, 2022
- Hitachi Construction Machinery Tierra Co., Ltd
- Yoshifumi Takebayashi
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Hydraulic drive system for construction machine
- Patent number 11,280,059
- Issue date Mar 22, 2022
- Hitachi Construction Machinery Tierra Co., Ltd
- Kazushige Mori
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Hydraulic drive system for construction machine
- Patent number 11,111,650
- Issue date Sep 7, 2021
- Hitachi Construction Machinery Tierra Co. Ltd.
- Kiwamu Takahashi
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Construction machine
- Patent number 10,995,473
- Issue date May 4, 2021
- Hitachi Construction Machinery Tierra Co., Ltd
- Yoshifumi Takebayashi
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Construction machine
- Patent number 10,676,897
- Issue date Jun 9, 2020
- Hitachi Construction Machinery Tierra Co., Ltd.
- Daisuke Oka
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Construction Machine
- Publication number 20210332560
- Publication date Oct 28, 2021
- Yoshifumi TAKEBAYASHI
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
Hydraulic Drive System for Construction Machine
- Publication number 20210131069
- Publication date May 6, 2021
- HITACHI CONSTRUCTION MACHINERY TIERRA CO., LTD.
- Kiwamu TAKAHASHI
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
Hydraulic Drive System for Construction Machine
- Publication number 20200340206
- Publication date Oct 29, 2020
- HITACHI CONSTRUCTION MACHINERY TIERRA CO., LTD.
- Kazushige MORI
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
Construction Machine
- Publication number 20200232180
- Publication date Jul 23, 2020
- HITACHI CONSTRUCTION MACHINERY TIERRA CO., LTD.
- Yoshifumi TAKEBAYASHI
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
Construction Machine
- Publication number 20190292753
- Publication date Sep 26, 2019
- Hitachi Construction Machinery Tierra Co., Ltd.
- Daisuke OKA
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING