Patents by Inventor Kyung Min Noh

Kyung Min Noh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11142808
    Abstract: Provided is a steel for pipes for use in applications such as oil or gas extraction. Particularly, there are provided a steel for pipes having high fatigue resistance, a method of manufacturing the steel, and a welded steel pipe obtained using the steel.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: October 12, 2021
    Assignee: POSCO
    Inventors: Kyung Min Noh, Min Sung Joo, Ki Seok Kim, Young Hune Kim
  • Publication number: 20180171443
    Abstract: The present invention relates to a hot rolled steel plate used for an oil well pipe for development of petroleum or natural gas, a steel pipe manufactured using the same, and a method of manufacturing the same.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 21, 2018
    Inventors: Min Sung Joo, Kyung Min NOH
  • Publication number: 20180073097
    Abstract: Provided is a steel for pipes for use in applications such as oil or gas extraction. Particularly, there are provided a steel for pipes having high fatigue resistance, a method of manufacturing the steel, and a welded steel pipe obtained using the steel.
    Type: Application
    Filed: September 11, 2017
    Publication date: March 15, 2018
    Inventors: Kyung Min NOH, Min Sung JOO, Ki Seok KIM, Young Hune KIM
  • Publication number: 20160184875
    Abstract: Provided is a hot rolled steel sheet for oil country tubular goods (OCTG). The hot rolled steel sheet for oil country tubular goods (OCTG) according to an aspect of the present invention comprises C: 0.08 to 0.18 wt %, Si: 0.10 to 0.50 wt %, Mn: 1.2 to 2.0 wt %, P: 0.020 wt % or less, S: 0.003 wt % or less, Nb: 0.04 to 0.1 wt %, Cr: 0.05 to 0.5 wt %, Ti: 0.01 to 0.05 wt %, B: 0.0005 to 0.003 wt %, Ca: 0.001 to 0.006 wt %, N: 0.008 wt % or less, a balance of Fe and inevitable impurities, and satisfy Relational Expression 1, 16?30[C]+5[Mn]+5[Si]+6[Cr]+600[B]<17.5??[Relational Expression 1] wherein, [C], [Mn], [Si], [Cr] and [B] refer to wt % of each ingredient.
    Type: Application
    Filed: December 23, 2015
    Publication date: June 30, 2016
    Inventors: Kyung Min Noh, Min Sung Joo