Naoya Hayakawa

Person

Chiba, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Multi-electrode submerged arc welding method
- Patent number 11,453,079
- Issue date Sep 27, 2022
- JFE Steel Corporation
- Atsushi Ishigami
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Submerged arc welding method for steel plate
- Patent number 9,764,410
- Issue date Sep 19, 2017
- JFE Steel Corporation
- Atsushi Ishigami
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Combination welding method using combination of gas metal arc weldi...
- Patent number 9,321,119
- Issue date Apr 26, 2016
- JFE Steel Corporation
- Naoya Hayakawa
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Submerged arc welding method for steel plate
- Patent number 8,955,554
- Issue date Feb 17, 2015
- JFE Steel Corporation
- Atsushi Ishigami
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Submerged arc welding method with multiple electrodes for steel mat...
- Patent number 8,785,806
- Issue date Jul 22, 2014
- JFE Steel Corporation
- Atsushi Ishigami
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
High-strength welded steel pipe including weld metal having high co...
- Patent number 8,124,247
- Issue date Feb 28, 2012
- JFE Steel Corporation
- Naoya Hayakawa
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
SOLID WIRE FOR GAS METAL ARC WELDING
- Publication number 20210323101
- Publication date Oct 21, 2021
- JFE STEEL CORPORATION
- Atsushi TAKADA
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
MULTI-ELECTRODE SUBMERGED ARC WELDING METHOD
- Publication number 20190105726
- Publication date Apr 11, 2019
- JFE STEEL CORPORATION
- Atsushi Ishigami
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
SUBMERGED ARC WELDING METHOD FOR STEEL PLATE
- Publication number 20150306694
- Publication date Oct 29, 2015
- JFE STEEL CORPORATION
- Atsushi ISHIGAMI
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
SUBMERGED ARC WELDING METHOD FOR STEEL PLATE
- Publication number 20140346149
- Publication date Nov 27, 2014
- Atsushi Ishigami
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
SUBMERGED ARC WELDING METHOD FOR STEEL PLATE
- Publication number 20120325362
- Publication date Dec 27, 2012
- JFE Steel Corporation
- Atsushi Ishigami
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
COMBINATION WELDING METHOD USING COMBINATION OF GAS METAL ARC WELDI...
- Publication number 20120024822
- Publication date Feb 2, 2012
- JFE STEEL CORPORATION
- Naoya Hayakawa
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
SUBMERGED ARC WELDING METHOD WITH MULTIPLE ELECTRODES FOR STEEL MAT...
- Publication number 20110036814
- Publication date Feb 17, 2011
- JFE STEEL CORPORATION
- Atsushi Ishigami
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
HIGH-STRENGTH WELDED STEEL PIPE INCLUDING WELD METAL HAVING HIGH CO...
- Publication number 20100119861
- Publication date May 13, 2010
- JFE STEEL CORPORATION
- Naoya Hayakawa
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Naoya Hayakawa

Person

Patents Grantslast 30 patents

Multi-electrode submerged arc welding method

Submerged arc welding method for steel plate

Combination welding method using combination of gas metal arc weldi...

Submerged arc welding method for steel plate

Submerged arc welding method with multiple electrodes for steel mat...

High-strength welded steel pipe including weld metal having high co...

Patents Applicationslast 30 patents

SOLID WIRE FOR GAS METAL ARC WELDING

MULTI-ELECTRODE SUBMERGED ARC WELDING METHOD

SUBMERGED ARC WELDING METHOD FOR STEEL PLATE

SUBMERGED ARC WELDING METHOD FOR STEEL PLATE

SUBMERGED ARC WELDING METHOD FOR STEEL PLATE

COMBINATION WELDING METHOD USING COMBINATION OF GAS METAL ARC WELDI...

SUBMERGED ARC WELDING METHOD WITH MULTIPLE ELECTRODES FOR STEEL MAT...

HIGH-STRENGTH WELDED STEEL PIPE INCLUDING WELD METAL HAVING HIGH CO...