Kenji Oi

Person

Hiroshima, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Resistance spot welding method
- Patent number 10,328,518
- Issue date Jun 25, 2019
- JFE Steel Corporation
- Yasuaki Okita
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Welded steel pipe joined with high-energy-density beam and method f...
- Patent number 9,677,692
- Issue date Jun 13, 2017
- JFE Steel Corporation
- Koji Yano
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of manufacturing laser welded steel pipe
- Patent number 9,364,921
- Issue date Jun 14, 2016
- JFE Steel Corporation
- Koji Yano
- 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
Method for producing a steel pipe using a high energy density beam
- Patent number 8,993,920
- Issue date Mar 31, 2015
- JFE Steel Corporation
- Koji Yano
- 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 tensile strength steel material having excellent delayed fract...
- Patent number 8,728,257
- Issue date May 20, 2014
- JFE Steel Corporation
- Kenji Oi
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for manufacturing a laser welded steel pipe
- Patent number 8,604,382
- Issue date Dec 10, 2013
- JFE Steel Corporation
- Koji Yano
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
High tensile strength steel having favorable delayed fracture resis...
- Patent number 8,357,252
- Issue date Jan 22, 2013
- JFE Steel Corporation
- Akihide Nagao
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for manufacturing high tensile strength steel plate
- Patent number 7,648,597
- Issue date Jan 19, 2010
- JFE Steel Corporation
- Akihide Nagao
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
RESISTANCE SPOT WELDING METHOD
- Publication number 20160008913
- Publication date Jan 14, 2016
- JFE STEEL CORPORATION
- Yasuaki OKITA
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WELDED STEEL PIPE JOINED WITH HIGH-ENERGY-DENSITY BEAM AND METHOD F...
- Publication number 20150204464
- Publication date Jul 23, 2015
- JFE STEEL CORPORATION
- Koji Yano
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHOD OF MANUFACTURING LASER WELDED STEEL PIPE
- Publication number 20140175069
- Publication date Jun 26, 2014
- JFE STEEL CORPORATION
- Koji Yano
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD OF MANUFACTURING LASER WELDED STEEL PIPE
- Publication number 20140124481
- Publication date May 8, 2014
- JFE STEEL CORPORATION
- Koji Yano
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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
METHOD FOR MANUFACTURING A LASER WELDED STEEL PIPE
- Publication number 20110100965
- Publication date May 5, 2011
- JFE STEEL CORPORATION
- Koji Yano
- 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
WELDED STEEL PIPE JOINED WITH HIGH-ENERGY-DENSITY BEAM AND METHOD F...
- Publication number 20110023990
- Publication date Feb 3, 2011
- JFE STEEL CORPORATION
- Koji Yano
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
HIGH TENSILE STRENGTH STEEL HAVING FAVORABLE DELAYED FRACTURE RESIS...
- Publication number 20100024926
- Publication date Feb 4, 2010
- JFE STEEL CORPORATION
- Akihide Nagao
- C21 - METALLURGY OF IRON
Information Patent Application
Method for Manufacturing High Tensile Strength Steel Plate
- Publication number 20080283158
- Publication date Nov 20, 2008
- Akihide Nagao
- C21 - METALLURGY OF IRON
Information Patent Application
High Tensile Strength Steel Material Having Excellent Delayed Fract...
- Publication number 20080110535
- Publication date May 15, 2008
- Kenji Oi
- C21 - METALLURGY OF IRON

Person

Patents Grantslast 30 patents

Resistance spot welding method

Welded steel pipe joined with high-energy-density beam and method f...

Method of manufacturing laser welded steel pipe

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

Method for producing a steel pipe using a high energy density beam

Submerged arc welding method for steel plate

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

High tensile strength steel material having excellent delayed fract...

Method for manufacturing a laser welded steel pipe

High tensile strength steel having favorable delayed fracture resis...

Method for manufacturing high tensile strength steel plate

Patents Applicationslast 30 patents

RESISTANCE SPOT WELDING METHOD

WELDED STEEL PIPE JOINED WITH HIGH-ENERGY-DENSITY BEAM AND METHOD F...

METHOD OF MANUFACTURING LASER WELDED STEEL PIPE

METHOD OF MANUFACTURING LASER WELDED STEEL PIPE

SUBMERGED ARC WELDING METHOD FOR STEEL PLATE

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

METHOD FOR MANUFACTURING A LASER WELDED STEEL PIPE

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

WELDED STEEL PIPE JOINED WITH HIGH-ENERGY-DENSITY BEAM AND METHOD F...

HIGH TENSILE STRENGTH STEEL HAVING FAVORABLE DELAYED FRACTURE RESIS...

Method for Manufacturing High Tensile Strength Steel Plate

High Tensile Strength Steel Material Having Excellent Delayed Fract...