Ichiro Umezawa

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Kobe, JP

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Patents Grantslast 30 patents

Information Patent Grant
Welding power supply device
- Patent number 11,883,912
- Issue date Jan 30, 2024
- Daihen Corporation
- Chikanori Takami
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Non-consumable electrode arc-welding method
- Patent number 11,305,367
- Issue date Apr 19, 2022
- Daihen Corporation
- Michitaka Todo
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
ARC processing apparatus comprising driving means for controlling o...
- Patent number 5,645,741
- Issue date Jul 8, 1997
- Daihen Corporation
- Kikuo Terayama
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
WELDING POWER SUPPLY DEVICE
- Publication number 20200122266
- Publication date Apr 23, 2020
- DAIHEN CORPORATION
- Chikanori TAKAMI
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
TORCH FOR HEAT PROCESSING, POWER SOURCE APPARATUS, WIRE FEED APPARA...
- Publication number 20190168331
- Publication date Jun 6, 2019
- DAIHEN CORPORATION
- Hiroki IMAMACHI
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
NON-CONSUMABLE ELECTRODE ARC-WELDING METHOD
- Publication number 20190126378
- Publication date May 2, 2019
- DAIHEN CORPORATION
- Michitaka Todo
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR