Masaaki Yamamoto

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Shovel
- Patent number 11,746,497
- Issue date Sep 5, 2023
- SUMITOMO CONSTRUCTION MACHINERY CO., LTD.
- Ryuji Shiratani
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Turning control apparatus
- Patent number 10,106,955
- Issue date Oct 23, 2018
- Sumitomo(S.H.I) Construction Machinery Co., Ltd.
- Ryuji Shiratani
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
SHOVEL
- Publication number 20200362532
- Publication date Nov 19, 2020
- SUMITOMO CONSTRUCTION MACHINERY CO., LTD.
- Ryuji SHIRATANI
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
TURNING CONTROL APPARATUS
- Publication number 20130255243
- Publication date Oct 3, 2013
- SUMITOMO(S.H.I.) CONSTRUCTION MACHINERY CO., LTD.
- Ryuji SHIRATANI
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING