Kenji Kobayashi

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
High-strength steel material for oil well and oil well pipes
- Patent number 10,597,760
- Issue date Mar 24, 2020
- Nippon Steel Corporation
- Kenji Kobayashi
- C21 - METALLURGY OF IRON
Information Patent Grant
High-strength steel material for oil well and oil country tubular g...
- Patent number 10,513,761
- Issue date Dec 24, 2019
- Nippon Steel Corporation
- Kenji Kobayashi
- C21 - METALLURGY OF IRON
Information Patent Grant
Seamless steel pipe and method for producing same
- Patent number 10,131,962
- Issue date Nov 20, 2018
- Nippon Steel & Sumitomo Metal Corporation
- Yuji Arai
- C21 - METALLURGY OF IRON
Information Patent Grant
Seamless steel pipe for line pipe used in sour environments
- Patent number 10,094,008
- Issue date Oct 9, 2018
- Nippon Steel & Sumitomo Metal Corporation
- Keiichi Kondo
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method for manufacturing seamless steel pipe for line pipe
- Patent number 7,896,984
- Issue date Mar 1, 2011
- Sumitomo Metal Industries, Ltd.
- Kenji Kobayashi
- C21 - METALLURGY OF IRON
Information Patent Grant
Low alloy steel for oil country tubular goods having high sulfide s...
- Patent number 7,670,547
- Issue date Mar 2, 2010
- Sumitomo Metal Industries, Ltd.
- Kenji Kobayashi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Corrosion inhibitor for boiler water systems
- Patent number 4,975,219
- Issue date Dec 4, 1990
- Kurita Water Industries, Ltd.
- Takatoshi Sato
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Iron dispersant for boiler water
- Patent number 4,877,535
- Issue date Oct 31, 1989
- Kurita Water Industries, Ltd.
- Kenji Kobayashi
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
LUBRICATING OIL COMPOSITION, BUFFER AND METHOD FOR USING LUBRICATIN...
- Publication number 20240141249
- Publication date May 2, 2024
- IDEMITSU KOSAN CO.,LTD.
- Kenji KOBAYASHI
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
HOT-STAMPED PRODUCT
- Publication number 20240068080
- Publication date Feb 29, 2024
- NIPPON STEEL CORPORATION
- Takashi DOI
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
LUBRICATING OIL COMPOSITION, SHOCK ABSORBER, AND METHOD FOR USING L...
- Publication number 20230287293
- Publication date Sep 14, 2023
- IDEMITSU KOSAN CO.,LTD.
- Shuichi SAKANOUE
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
LUBRICATING OIL COMPOSITION, SHOCK ABSORBER, AND METHOD FOR USING L...
- Publication number 20230250357
- Publication date Aug 10, 2023
- IDEMITSU KOSAN CO.,LTD.
- Shuichi SAKANOUE
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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...
Information Patent Application
STEEL MATERIAL AND EXPANDABLE OIL COUNTRY TUBULAR GOODS
- Publication number 20170349982
- Publication date Dec 7, 2017
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Kenji KOBAYASHI
- C21 - METALLURGY OF IRON
Information Patent Application
HIGH-STRENGTH STEEL MATERIAL FOR OIL WELL AND OIL COUNTRY TUBULAR G...
- Publication number 20170306462
- Publication date Oct 26, 2017
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Kenji KOBAYASHI
- C21 - METALLURGY OF IRON
Information Patent Application
SEAMLESS STEEL PIPE FOR LINE PIPE USED IN SOUR ENVIRONMENTS
- Publication number 20160369381
- Publication date Dec 22, 2016
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Keiichi KONDO
- C21 - METALLURGY OF IRON
Information Patent Application
HIGH-STRENGTH STEEL MATERIAL FOR OIL WELL AND OIL WELL PIPES
- Publication number 20160168672
- Publication date Jun 16, 2016
- NIPPON STEEL & SUMITOM METAL CORPORATION
- Kenji KOBAYASHI
- 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 20150315685
- Publication date Nov 5, 2015
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Yuji ARAI
- C21 - METALLURGY OF IRON
Information Patent Application
LOW ALLOY STEEL
- Publication number 20150047749
- Publication date Feb 19, 2015
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Hiroyuki Hirata
- C21 - METALLURGY OF IRON
Information Patent Application
LOW ALLOY STEEL
- Publication number 20140348695
- Publication date Nov 27, 2014
- Hiroyuki Hirata
- C21 - METALLURGY OF IRON
Information Patent Application
Seamless steel pipe for line pipe and a method for its manufacture
- Publication number 20080216928
- Publication date Sep 11, 2008
- Kenji Kobayashi
- C21 - METALLURGY OF IRON
Information Patent Application
Low alloy steel for oil country tubular goods having high sulfide s...
- Publication number 20080105337
- Publication date May 8, 2008
- Kenji Kobayashi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Low alloy steel for oil well pipes having excellent sulfide stress...
- Publication number 20070137736
- Publication date Jun 21, 2007
- Sumitomo Metal Industries, Ltd.
- Tomohiko Omura
- C21 - METALLURGY OF IRON

Kenji Kobayashi

Person

Patents Grantslast 30 patents

High-strength steel material for oil well and oil well pipes

High-strength steel material for oil well and oil country tubular g...

Seamless steel pipe and method for producing same

Seamless steel pipe for line pipe used in sour environments

Method for manufacturing seamless steel pipe for line pipe

Low alloy steel for oil country tubular goods having high sulfide s...

Corrosion inhibitor for boiler water systems

Iron dispersant for boiler water

Patents Applicationslast 30 patents

LUBRICATING OIL COMPOSITION, BUFFER AND METHOD FOR USING LUBRICATIN...

HOT-STAMPED PRODUCT

LUBRICATING OIL COMPOSITION, SHOCK ABSORBER, AND METHOD FOR USING L...

LUBRICATING OIL COMPOSITION, SHOCK ABSORBER, AND METHOD FOR USING L...

SEAMLESS STEEL PIPE AND METHOD FOR PRODUCING SAME

STEEL MATERIAL AND EXPANDABLE OIL COUNTRY TUBULAR GOODS

HIGH-STRENGTH STEEL MATERIAL FOR OIL WELL AND OIL COUNTRY TUBULAR G...

SEAMLESS STEEL PIPE FOR LINE PIPE USED IN SOUR ENVIRONMENTS

HIGH-STRENGTH STEEL MATERIAL FOR OIL WELL AND OIL WELL PIPES

SEAMLESS STEEL PIPE AND METHOD FOR PRODUCING SAME

LOW ALLOY STEEL

LOW ALLOY STEEL

Seamless steel pipe for line pipe and a method for its manufacture

Low alloy steel for oil country tubular goods having high sulfide s...

Low alloy steel for oil well pipes having excellent sulfide stress...