Ryoji NAKAGAWA

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Welding management system
- Patent number 12,042,877
- Issue date Jul 23, 2024
- Hitachi, Ltd.
- Ryoji Nakagawa
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Welding monitoring system and welding monitoring method
- Patent number 11,029,254
- Issue date Jun 8, 2021
- Hitachi, Ltd.
- Ryoji Nakagawa
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Welding monitoring system and welding monitoring method
- Patent number 10,935,500
- Issue date Mar 2, 2021
- Hitachi, Ltd.
- Ryoji Nakagawa
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Superconducting magnet apparatus
- Patent number 8,989,828
- Issue date Mar 24, 2015
- Hitachi, Ltd.
- Ryoji Nakagawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Superconducting electromagnet device, cooling method therefor, and...
- Patent number 8,988,176
- Issue date Mar 24, 2015
- Hitachi, Ltd.
- Manabu Aoki
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
WELDING MANAGEMENT SYSTEM
- Publication number 20200361023
- Publication date Nov 19, 2020
- Hitachi, Ltd
- Ryoji NAKAGAWA
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WELDING MONITORING SYSTEM AND WELDING MONITORING METHOD
- Publication number 20180321162
- Publication date Nov 8, 2018
- Hitachi, Ltd
- Ryoji NAKAGAWA
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WELDING MONITORING SYSTEM AND WELDING MONITORING METHOD
- Publication number 20180113077
- Publication date Apr 26, 2018
- Hitachi, Ltd
- Ryoji NAKAGAWA
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
SUPERCONDUCTING MAGNET APPARATUS
- Publication number 20150111753
- Publication date Apr 23, 2015
- Hitachi, Ltd
- Ryoji NAKAGAWA
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information Patent Application
SUPERCONDUCTING MAGNET APPARATUS
- Publication number 20140357491
- Publication date Dec 4, 2014
- Hitachi, Ltd
- Ryoji NAKAGAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SUPERCONDUCTING ELECTROMAGNET DEVICE, COOLING METHOD THEREFOR, AND...
- Publication number 20140329688
- Publication date Nov 6, 2014
- Manabu Aoki
- G01 - MEASURING TESTING