Ryuu NARIKAWA

Follow

Person

Mito-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Hydraulic excavator with area limiting control function
- Patent number 11,466,435
- Issue date Oct 11, 2022
- Hitachi Construction Machinery Co., Ltd.
- Shiho Izumi
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Work machine
- Patent number 11,453,995
- Issue date Sep 27, 2022
- Hitachi Construction Machinery Co., Ltd.
- Masamichi Ito
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Work machine
- Patent number 10,801,187
- Issue date Oct 13, 2020
- Hitachi Construction Machinery Co., Ltd.
- Shiho Izumi
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Work machine
- Patent number 10,774,502
- Issue date Sep 15, 2020
- Hitachi Construction Machinery Co., Ltd.
- Daito Sakai
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Work machine
- Patent number 10,626,578
- Issue date Apr 21, 2020
- Hitachi Construction Machinery Co., Ltd.
- Shiho Izumi
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
WORK MACHINE
- Publication number 20200332497
- Publication date Oct 22, 2020
- Hitachi Construction Machinery Co., Ltd.
- Shiho IZUMI
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
WORK MACHINE
- Publication number 20200248430
- Publication date Aug 6, 2020
- Hitachi Construction Machinery Co., Ltd.
- Masamichi ITO
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
WORK MACHINE
- Publication number 20190127946
- Publication date May 2, 2019
- Hitachi Construction Machinery Co., Ltd.
- Daito SAKAI
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
WORK MACHINE
- Publication number 20190119886
- Publication date Apr 25, 2019
- Hitachi Construction Machinery Co., Ltd.
- Shiho IZUMI
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
WORK MACHINE
- Publication number 20190106861
- Publication date Apr 11, 2019
- Hitachi Construction Machinery Co., Ltd.
- Shiho IZUMI
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
WORK MACHINE
- Publication number 20190063041
- Publication date Feb 28, 2019
- Hitachi Construction Machinery Co., Ltd.
- Shiho IZUMI
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS