Hirokazu Kawai

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Osaka-shi, Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Power supply system, power supply device, and control method
- Patent number 11,642,735
- Issue date May 9, 2023
- Daihen Corporation
- Hirokazu Kawai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Arc welding system and wire feeding device
- Patent number 11,370,052
- Issue date Jun 28, 2022
- Daihen Corporation
- Masahiro Inoue
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Wire feeding device, arc welding device and wire feeding method
- Patent number 11,213,908
- Issue date Jan 4, 2022
- Daihen Corporation
- Hirokazu Kawai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Power supply system, power supply device, and control method
- Patent number 11,045,893
- Issue date Jun 29, 2021
- Daihen Corporation
- Hirokazu Kawai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Power supply system and power supply device
- Patent number 10,610,947
- Issue date Apr 7, 2020
- DAIHEN CORPORATION
- Hirokazu Kawai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Power Supply System, Power Supply Device, and Control Method
- Publication number 20200122265
- Publication date Apr 23, 2020
- DAIHEN CORPORATION
- Hirokazu Kawai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Wire Feeding Device, Arc Welding Device and Wire Feeding Method
- Publication number 20190224772
- Publication date Jul 25, 2019
- DAIHEN Corporation
- Hirokazu Kawai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Power Supply System, Power Supply Device, and Control Method
- Publication number 20190105724
- Publication date Apr 11, 2019
- DAIHEN CORPORATION
- Hirokazu Kawai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
POWER SUPPLY SYSTEM AND POWER SUPPLY DEVICE
- Publication number 20190039163
- Publication date Feb 7, 2019
- DAIHEN CORPORATION
- Hirokazu KAWAI
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Arc Welding System and Wire Feeding Device
- Publication number 20190015922
- Publication date Jan 17, 2019
- DAIHEN CORPORATION
- Masahiro Inoue
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR