YUJI ARAI

Person

KANAGAWA, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Steel material and method for producing steel material
- Patent number 12,054,798
- Issue date Aug 6, 2024
- Nippon Steel Corporation
- Yuji Arai
- C21 - METALLURGY OF IRON
Information Patent Grant
Seamless steel pipe suitable for use in sour environment
- Patent number 11,905,580
- Issue date Feb 20, 2024
- Nippon Steel Corporation
- Hiroki Kamitani
- C21 - METALLURGY OF IRON
Information Patent Grant
Seamless steel pipe heat-treatment-finishing-treatment continuous f...
- Patent number 11,898,216
- Issue date Feb 13, 2024
- Nippon Steel Corporation
- Hiroki Kamitani
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Steel material suitable for use in sour environment
- Patent number 11,891,680
- Issue date Feb 6, 2024
- Nippon Steel Corporation
- Yohei Otome
- C21 - METALLURGY OF IRON
Information Patent Grant
Steel pipe and method for producing steel pipe
- Patent number 11,773,460
- Issue date Oct 3, 2023
- Nippon Steel Corporation
- Yuji Arai
- C21 - METALLURGY OF IRON
Information Patent Grant
Steel pipe and method for producing steel pipe
- Patent number 11,643,712
- Issue date May 9, 2023
- Nippon Steel Corporation
- Yuji Arai
- C21 - METALLURGY OF IRON
Information Patent Grant
Steel material suitable for use in sour environment
- Patent number 11,492,688
- Issue date Nov 8, 2022
- Nippon Steel Corporation
- Shinji Yoshida
- C21 - METALLURGY OF IRON
Information Patent Grant
Steel material suitable for use in sour environment
- Patent number 11,473,177
- Issue date Oct 18, 2022
- Nippon Steel Corporation
- Shinji Yoshida
- C21 - METALLURGY OF IRON
Information Patent Grant
Production method of seamless steel pipe
- Patent number 11,471,923
- Issue date Oct 18, 2022
- Nippon Steel Corporation
- Kouji Yamane
- C21 - METALLURGY OF IRON
Information Patent Grant
Seamless steel pipe and method for producing same
- Patent number 11,453,925
- Issue date Sep 27, 2022
- Nippon Steel Corporation
- Takeshi Miki
- C21 - METALLURGY OF IRON
Information Patent Grant
Steel material suitable for use in sour environment
- Patent number 11,434,554
- Issue date Sep 6, 2022
- Nippon Steel Corporation
- Hiroki Kamitani
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Steel material suitable for use in sour environment
- Patent number 11,332,813
- Issue date May 17, 2022
- Nippon Steel Corporation
- Shinji Yoshida
- C21 - METALLURGY OF IRON
Information Patent Grant
Seamless steel pipe and method for producing the seamless steel pipe
- Patent number 11,313,005
- Issue date Apr 26, 2022
- Nippon Steel Corporation
- Atsushi Soma
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Steel material suitable for use in sour environment
- Patent number 11,174,539
- Issue date Nov 16, 2021
- Nippon Steel Corporation
- Hiroki Kamitani
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Steel material suitable for use in sour environment
- Patent number 11,155,893
- Issue date Oct 26, 2021
- Nippon Steel Corporation
- Shinji Yoshida
- C21 - METALLURGY OF IRON
Information Patent Grant
Steel material, oil-well steel pipe, and method for producing steel...
- Patent number 11,078,558
- Issue date Aug 3, 2021
- Nippon Steel Corporation
- Yuji Arai
- C21 - METALLURGY OF IRON
Information Patent Grant
Low-alloy steel for oil well pipe and method of manufacturing low-a...
- Patent number 11,060,160
- Issue date Jul 13, 2021
- Nippon Steel Corporation
- Keiichi Kondo
- C21 - METALLURGY OF IRON
Information Patent Grant
High-strength steel material and production method therefor
- Patent number 10,988,819
- Issue date Apr 27, 2021
- Nippon Steel Corporation
- Shinji Yoshida
- C21 - METALLURGY OF IRON
Information Patent Grant
Low alloy oil-well steel pipe
- Patent number 10,752,979
- Issue date Aug 25, 2020
- Nippon Steel Corporation
- Keiichi Kondo
- C21 - METALLURGY OF IRON
Information Patent Grant
Steel material and oil-well steel pipe
- Patent number 10,655,200
- Issue date May 19, 2020
- Nippon Steel Corporation
- Yuji Arai
- C21 - METALLURGY OF IRON
Information Patent Grant
Low alloy oil-well steel pipe
- Patent number 10,563,793
- Issue date Feb 18, 2020
- Nippon Steel Corporation
- Keiichi Kondo
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Steel material and oil-well steel pipe
- Patent number 10,550,962
- Issue date Feb 4, 2020
- Nippon Steel Corporation
- Yuji Arai
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Display unit
- Patent number 10,514,564
- Issue date Dec 24, 2019
- Sony Corporation
- Yasunobu Kawasaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Steel pipe for line pipe and method of manufacturing the same
- Patent number 10,487,373
- Issue date Nov 26, 2019
- Nippon Steel Corporation
- Taro Oe
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Seamless steel pipe for line pipe and method for producing the same
- Patent number 10,480,043
- Issue date Nov 19, 2019
- Nippon Steel Corporation
- Yuji Arai
- C21 - METALLURGY OF IRON
Information Patent Grant
Steel material and oil-well steel pipe
- Patent number 10,443,114
- Issue date Oct 15, 2019
- Nippon Steel Corporation
- Yuji Arai
- C21 - METALLURGY OF IRON
Information Patent Grant
Thick-wall oil-well steel pipe and production method thereof
- Patent number 10,415,125
- Issue date Sep 17, 2019
- Nippon Steel Corporation
- Yuji Arai
- C21 - METALLURGY OF IRON
Information Patent Grant
Steel for oil country tubular goods and method of producing the same
- Patent number 10,407,758
- Issue date Sep 10, 2019
- Nippon Steel Corporation
- Tomohiko Omura
- C21 - METALLURGY OF IRON
Information Patent Grant
Seamless steel pipe and method for producing the same
- Patent number 10,392,675
- Issue date Aug 27, 2019
- Nippon Steel Corporation
- Yukimasa Ueda
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing high-strength steel material excellent in sulf...
- Patent number 10,287,645
- Issue date May 14, 2019
- Nippon Steel & Sumitomo Metal Corporation
- Keiichi Kondo
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
DUPLEX STAINLESS STEEL MATERIAL
- Publication number 20240401177
- Publication date Dec 5, 2024
- NIPPON STEEL CORPORATION
- Daisuke MATSUO
- C21 - METALLURGY OF IRON
Information Patent Application
Display Device
- Publication number 20240065083
- Publication date Feb 22, 2024
- SONY GROUP CORPORATION
- Yoshinori Ikuma
Information Patent Application
STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT
- Publication number 20230366070
- Publication date Nov 16, 2023
- NIPPON STEEL CORPORATION
- Shinji YOSHIDA
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL MATERIAL
- Publication number 20230203631
- Publication date Jun 29, 2023
- NIPPON STEEL CORPORATION
- Keiichi KONDO
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT
- Publication number 20220325393
- Publication date Oct 13, 2022
- NIPPON STEEL CORPORATION
- Shinji YOSHIDA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
STEEL PIPE FOR FUEL INJECTION PIPE, AND FUEL INJECTION PIPE USING SAME
- Publication number 20220136469
- Publication date May 5, 2022
- NIPPON STEEL CORPORATION
- Taizo MAKINO
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL PIPE FOR FUEL INJECTION PIPE, AND FUEL INJECTION PIPE USING SAME
- Publication number 20220112572
- Publication date Apr 14, 2022
- NIPPON STEEL CORPORATION
- Taizo MAKINO
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT
- Publication number 20220098712
- Publication date Mar 31, 2022
- Hiroki KAMITANI
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT
- Publication number 20220042148
- Publication date Feb 10, 2022
- NIPPON STEEL CORPORATION
- Yohei OTOME
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT
- Publication number 20210371961
- Publication date Dec 2, 2021
- NIPPON STEEL CORPORATION
- Shinji YOSHIDA
- C21 - METALLURGY OF IRON
Information Patent Application
SEAMLESS STEEL PIPE SUITABLE FOR USE IN SOUR ENVIRONMENT
- Publication number 20210317553
- Publication date Oct 14, 2021
- NIPPON STEEL CORPORATION
- Hiroki KAMITANI
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT
- Publication number 20210269902
- Publication date Sep 2, 2021
- NIPPON STEEL CORPORATION
- Shinji YOSHIDA
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL MATERIAL AND METHOD FOR PRODUCING STEEL MATERIAL
- Publication number 20210262051
- Publication date Aug 26, 2021
- NIPPON STEEL CORPORATION
- Yuji ARAI
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT
- Publication number 20210198775
- Publication date Jul 1, 2021
- NIPPON STEEL CORPORATION
- Hiroki KAMITANI
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
STEEL PIPE AND METHOD FOR PRODUCING STEEL PIPE
- Publication number 20210180149
- Publication date Jun 17, 2021
- NIPPON STEEL CORPORATION
- Yuji Arai
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT
- Publication number 20210047714
- Publication date Feb 18, 2021
- NIPPON STEEL CORPORATION
- Shinji Yoshida
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL PIPE AND METHOD FOR PRODUCING STEEL PIPE
- Publication number 20210032734
- Publication date Feb 4, 2021
- NIPPON STEEL CORPORATION
- Yuji Arai
- C21 - METALLURGY OF IRON
Information Patent Application
SEAMLESS STEEL PIPE HEAT-TREATMENT-FINISHING-TREATMENT CONTINUOUS F...
- Publication number 20210025021
- Publication date Jan 28, 2021
- NIPPON STEEL CORPORATION
- Hiroki KAMITANI
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT
- Publication number 20210017635
- Publication date Jan 21, 2021
- NIPPON STEEL CORPORATION
- Hiroki KAMITANI
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT
- Publication number 20210010099
- Publication date Jan 14, 2021
- NIPPON STEEL CORPORATION
- Shinji Yoshida
- C21 - METALLURGY OF IRON
Information Patent Application
PRODUCTION METHOD OF SEAMLESS STEEL PIPE
- Publication number 20200384514
- Publication date Dec 10, 2020
- NIPPON STEEL CORPORATION
- Kouji YAMANE
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
High-Strength Steel Material and Production Method Therefor
- Publication number 20200123624
- Publication date Apr 23, 2020
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Shinji Yoshida
- C21 - METALLURGY OF IRON
Information Patent Application
Steel Material, Oil-Well Steel Pipe, and Method for Producing Steel...
- Publication number 20200040436
- Publication date Feb 6, 2020
- Yuji Arai
- C21 - METALLURGY OF IRON
Information Patent Application
Steel Material and Method for Producing Steel Material
- Publication number 20190376167
- Publication date Dec 12, 2019
- NIPPON STEEL CORPORATION
- Shinji Yoshida
- C21 - METALLURGY OF IRON
Information Patent Application
Seamless Steel Pipe and Method for Producing the Seamless Steel Pipe
- Publication number 20190300979
- Publication date Oct 3, 2019
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Atsushi Soma
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Steel Material and Oil-Well Steel Pipe
- Publication number 20190226063
- Publication date Jul 25, 2019
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Yuji Arai
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Seamless Steel Pipe and Method for Producing Same
- Publication number 20190177813
- Publication date Jun 13, 2019
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Takeshi Miki
- C21 - METALLURGY OF IRON
Information Patent Application
STEEL MATERIAL AND OIL-WELL STEEL PIPE
- Publication number 20190063641
- Publication date Feb 28, 2019
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Yuji ARAI
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
STEEL MATERIAL AND OIL-WELL STEEL PIPE
- Publication number 20190048446
- Publication date Feb 14, 2019
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Yuji ARAI
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
SEAMLESS STEEL PIPE AND METHOD FOR PRODUCING SAME
- Publication number 20190040480
- Publication date Feb 7, 2019
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Yuji ARAI
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Person

Patents Grantslast 30 patents

Steel material and method for producing steel material

Seamless steel pipe suitable for use in sour environment

Seamless steel pipe heat-treatment-finishing-treatment continuous f...

Steel material suitable for use in sour environment

Steel pipe and method for producing steel pipe

Steel pipe and method for producing steel pipe

Steel material suitable for use in sour environment

Steel material suitable for use in sour environment

Production method of seamless steel pipe

Seamless steel pipe and method for producing same

Steel material suitable for use in sour environment

Steel material suitable for use in sour environment

Seamless steel pipe and method for producing the seamless steel pipe

Steel material suitable for use in sour environment

Steel material suitable for use in sour environment

Steel material, oil-well steel pipe, and method for producing steel...

Low-alloy steel for oil well pipe and method of manufacturing low-a...

High-strength steel material and production method therefor

Low alloy oil-well steel pipe

Steel material and oil-well steel pipe

Low alloy oil-well steel pipe

Steel material and oil-well steel pipe

Display unit

Steel pipe for line pipe and method of manufacturing the same

Seamless steel pipe for line pipe and method for producing the same

Steel material and oil-well steel pipe

Thick-wall oil-well steel pipe and production method thereof

Steel for oil country tubular goods and method of producing the same

Seamless steel pipe and method for producing the same

Method for producing high-strength steel material excellent in sulf...

Patents Applicationslast 30 patents

DUPLEX STAINLESS STEEL MATERIAL

Display Device

STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT

STEEL MATERIAL

STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT

STEEL PIPE FOR FUEL INJECTION PIPE, AND FUEL INJECTION PIPE USING SAME

STEEL PIPE FOR FUEL INJECTION PIPE, AND FUEL INJECTION PIPE USING SAME

STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT

STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT

STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT

SEAMLESS STEEL PIPE SUITABLE FOR USE IN SOUR ENVIRONMENT

STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT

STEEL MATERIAL AND METHOD FOR PRODUCING STEEL MATERIAL

STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT

STEEL PIPE AND METHOD FOR PRODUCING STEEL PIPE

STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT

STEEL PIPE AND METHOD FOR PRODUCING STEEL PIPE

SEAMLESS STEEL PIPE HEAT-TREATMENT-FINISHING-TREATMENT CONTINUOUS F...

STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT

STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT

PRODUCTION METHOD OF SEAMLESS STEEL PIPE

High-Strength Steel Material and Production Method Therefor

Steel Material, Oil-Well Steel Pipe, and Method for Producing Steel...

Steel Material and Method for Producing Steel Material

Seamless Steel Pipe and Method for Producing the Seamless Steel Pipe

Steel Material and Oil-Well Steel Pipe

Seamless Steel Pipe and Method for Producing Same

STEEL MATERIAL AND OIL-WELL STEEL PIPE

STEEL MATERIAL AND OIL-WELL STEEL PIPE

SEAMLESS STEEL PIPE AND METHOD FOR PRODUCING SAME