P

Inventor

ISHIGURO YASUHIDE

JP35 patents
⚠️ This page may combine multiple inventors who share the name “ISHIGURO YASUHIDE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

JFE STEEL CORP

29 patents
US11306369B2Apr 19, 2022

High-strength stainless steel seamless pipe for oil country tubular goods, and method for producing same

JFE STEEL CORP7 citations85
US10151011B2Dec 11, 2018

High-strength stainless steel seamless tube or pipe for oil country tubular goods, and method of manufacturing the same

JFE STEEL CORP8 citations83
US9708681B2Jul 18, 2017

High-strength seamless steel pipe for oil well use having excellent resistance to sulfide stress cracking

JFE STEEL CORP13 citations83
US9758850B2Sep 12, 2017

High strength stainless steel seamless pipe with excellent corrosion resistance for oil well and method of manufacturing the same

JFE STEEL CORP3 citations73
US11085095B2Aug 10, 2021

High-strength seamless stainless steel pipe for oil country tubular goods and method of manufacturing high-strength seamless stainless steel pipe

JFE STEEL CORP3 citations72
US11072835B2Jul 27, 2021

High-strength seamless stainless steel pipe for oil country tubular goods, and method for producing the same

JFE STEEL CORP2 citations72
US10876182B2Dec 29, 2020

High-strength seamless steel pipe for oil country tubular goods and method of producing the same

JFE STEEL CORP2 citations72
US10876183B2Dec 29, 2020

High-strength seamless stainless steel pipe and method of manufacturing high-strength seamless stainless steel pipe

JFE STEEL CORP4 citations72
US10844453B2Nov 24, 2020

High-strength seamless steel pipe for oil country tubular goods and method of producing the same

JFE STEEL CORP2 citations72
US10640856B2May 5, 2020

High-strength seamless steel pipe for oil country tubular goods and method of producing the same

JFE STEEL CORP2 citations72
US10472690B2Nov 12, 2019

High-strength seamless steel pipe for oil country tubular goods and method of producing the same

JFE STEEL CORP2 citations72
US11486531B2Nov 1, 2022

Thermal-insulated multi-walled pipe for superconducting power transmission

JFE STEEL CORP0 citations62
US11075508B2Jul 27, 2021

Thermal-insulated multi-walled pipe for superconducting power transmission and laying method therefor

JFE STEEL CORP1 citations62
US10971286B2Apr 6, 2021

Thermal-insulated multi-walled pipe for superconducting power transmission

JFE STEEL CORP0 citations62
US10240221B2Mar 26, 2019

Stainless steel seamless pipe for oil well use and method for manufacturing the same

JFE STEEL CORP1 citations62
US12553005B2Feb 17, 2026

Agent for forming solid lubricating coating film, oil country tubular goods, and threaded joint for oil country tubular goods

JFE STEEL CORP0 citations59
US12448581B2Oct 21, 2025

Agent, oil country tubular goods, and threaded joint for oil country tubular goods

JFE STEEL CORP0 citations59
US11414719B2Aug 16, 2022

High strength stainless steel seamless pipe for oil country tubular goods

JFE STEEL CORP0 citations51
US11286548B2Mar 29, 2022

High-strength stainless steel seamless pipe for oil country tubular goods, and method for manufacturing same

JFE STEEL CORP0 citations51
US10920297B2Feb 16, 2021

High-strength seamless steel pipe for oil country tubular goods and method of producing the same

JFE STEEL CORP0 citations51
US10023930B2Jul 17, 2018

Method of manufacturing high strength stainless steel tube or pipe

JFE STEEL CORP0 citations51
US7942984B2May 17, 2011

Steel pipe with good magnetic properties and method of producing the same

JFE STEEL CORP0 citations50
US11193179B2Dec 7, 2021

Seamless stainless steel pipe for oil country tubular goods and method of manufacturing the same

JFE STEEL CORP0 citations49
US10151012B2Dec 11, 2018

High-strength stainless steel pipe

JFE STEEL CORP1 citations49
US12312552B2May 27, 2025

Agent for forming solid lubricating coating film, oil country tubular goods, threaded joint for oil country tubular goods, and method for manufacturing oil country tubular goods

JFE STEEL CORP0 citations48
US10329633B2Jun 25, 2019

High-strength seamless stainless steel pipe for oil country tubular goods and method for manufacturing the same

JFE STEEL CORP0 citations47
US12510443B2Dec 30, 2025

Make-up/break-out evaluation method for threaded joint for oil country tubular goods

JFE STEEL CORP0 citations46
US9506132B2Nov 29, 2016

Method for manufacturing heavy wall steel pipe

JFE STEEL CORP0 citations41
US9995669B2Jun 12, 2018

Round bar tensile test specimen for sulfide stress corrosion cracking test of a steel, test method for sulfide stress corrosion cracking of steel, and seamless steel pipe having excellent resistance to sulfide stress corrosion cracking

JFE STEEL CORP0 citations36

NIPPON KOKAN KK

2 patents

ISHIGURO YASUHIDE

2 patents

(unassigned)

1 patent

EGUCHI KENICHIRO

1 patent