Patents by Inventor Seung Man Nam

Seung Man Nam 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: 10493514
    Abstract: Disclosed is a hot stamping device and method for preventing plating from sticking to a die. The hot stamping device may include a die that receives a heated plating material, presses the received plating material, and rapidly cools the pressed plating material in a constrained state. Before the plating material is pressed, an anti-sticking layer may be formed on the surface of the die disposed in contact with the plating material.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: December 3, 2019
    Assignee: Hyundai Steel Company
    Inventors: Nam-Kyu Shin, Seung-Man Nam, Myeong-Jin Lee, Yun-Tae Kim
  • Publication number: 20180117660
    Abstract: Disclosed is a hot stamping device and method for preventing plating from sticking to a die. The hot stamping device may include a die that receives a heated plating material, presses the received plating material, and rapidly cools the pressed plating material in a constrained state. Before the plating material is pressed, an anti-sticking layer may be formed on the surface of the die disposed in contact with the plating material.
    Type: Application
    Filed: December 15, 2014
    Publication date: May 3, 2018
    Inventors: Nam-Kyu SHIN, Seung-Man NAM, Myeong-Jin LEE, Yun-Tae KIM
  • Patent number: 9920408
    Abstract: Disclosed are a hot stamping part with enhanced toughness and a method for manufacturing the same, in which the hot stamping part has a tensile strength (TS) of 700-1,200 MPa after hot stamping while guaranteeing elongation (EL) of 12% or more by adjusting alloy components and controlling process conditions.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: March 20, 2018
    Assignee: HYUNDAI STEEL COMPANY
    Inventors: Seung-Man Nam, Seung-Ha Lee
  • Publication number: 20160281190
    Abstract: Disclosed are heat-hardened steel with excellent crashworthiness and a method for manufacturing heat-hardenable parts using the same. The heat-hardened steel according to the invention comprises, based on wt %; C: 0.12-0.8%; Cr: 0.01-2%; Mo: 0.2% or less; B: 0.0005-0.08%; Ca: 0.01 or less; Sb: 1.0% or less; and Ti and/or Nb: 0.2%; and the reminder being Fe and inevitable impurities. In addition, the heat-treatment hardening steel satisfies anyone of following conditions i)-iv), wherein condition i) comprises Si: 0.5-3%; Mn: 1-10% and Al: 0.05-2%; condition ii) comprises Si: 1% or less; Mn: 0.5-5%; Al: 0.1-2.5%; and Ni: 0.01-8%; condition iii) comprises Si: 0.5-3%; Mn: 1-10%; Al: 0.1% or less; and Ni: 0.01-8%; and condition iv) comprises Si: 0.5-3%; Mn: 1-10%; Al: 0.1-2.5%; and Ni: 0.01-8%.
    Type: Application
    Filed: June 3, 2016
    Publication date: September 29, 2016
    Inventors: Seung-Man NAM, Hee-Joong IM, Seung-Ha LEE, Dong-Eun KIM, Bo-Ryong LEE, Young-Jin KIM, Man-Been MOON
  • Publication number: 20160059343
    Abstract: A method for improving the weldability of hot stamping parts improving weldability of hot stamping parts with degraded weldability due to surface oxides is provided. In accordance with an embodiment of the present invention, a method for improving the weldability of hot stamping parts comprises: selecting a welding region in a hot stamping part; removing surface oxide of the welding region; and performing welding on a welding region on a hot stamping part with surface oxide removed.
    Type: Application
    Filed: May 20, 2013
    Publication date: March 3, 2016
    Inventors: Seung-Man NAM, Young-Chul PARK
  • Publication number: 20150361532
    Abstract: Disclosed are a hot stamping part with enhanced toughness and a method for manufacturing the same, in which the hot stamping part has a tensile strength (TS) of 700-1,200 MPa after hot stamping while guaranteeing elongation (EL) of 12% or more by adjusting alloy components and controlling process conditions.
    Type: Application
    Filed: May 15, 2013
    Publication date: December 17, 2015
    Inventors: Seung-Man NAM, Seung-Ha LEE
  • Publication number: 20150211086
    Abstract: Disclosed are a preparation method of a steel product capable of local reinforcement using laser heat treatment, and a heat hardened steel used in the method. According to the present invention, the preparation method of a steel part comprises the following steps: (a) preparing a material comprising 0.1-0.5 wt % of C, 0.1-0.5 wt % of Si, 0.5-3.0 wt % of Mn, 0.1 wt % or less of P, 0.05 wt % or less of S, 0.01-1.0 wt % of Cr, 0.1 wt % or less of Al, 0.2 wt % or less of Ti, 0.0005-0.08 wt % of B, and the balance of Fe and inevitable impurities; (b) preparing a formed product by forming the material into a predetermined shape; and (c) locally reinforcing the high strength portion by carrying out laser heat treatment on a portion requiring high strength at the formed product.
    Type: Application
    Filed: April 10, 2015
    Publication date: July 30, 2015
    Inventors: Hee-Joong IM, Seung-Man NAM, Bo-Ryong LEE, Kyung-Bo KIM, Youn-Il JUNG
  • Publication number: 20150167111
    Abstract: Disclosed herein is method of manufacturing an automobile part having different local strengths, more particularly, a method of manufacturing an automobile part using a steel sheet subjected to heat-treatment hardening and having different local thicknesses. The method includes preparing blank sheets using steel sheets subjected to heat-treatment hardening and having different thicknesses or different material properties according to desired strength; forming a blank assembly by joining the blank sheets to each other via laser welding; cold-pressing the blank assembly; and heating the cold-pressed part to a temperature of AC3 or more, followed by quenching the cold-formed part received within dies to remove residual stress while increasing strength of the automobile part.
    Type: Application
    Filed: February 24, 2015
    Publication date: June 18, 2015
    Inventors: Seung-Man NAM, Su-Hong CHAE, Min-Suck KWON, Hyo-Sub KIM, Hee-Joong IM, Bo-Ryong LEE, Man-Bean Moon
  • Publication number: 20140227553
    Abstract: Disclosed are a preparation method of a steel product capable of local reinforcement using laser heat treatment, and a heat hardened steel used in the method. According to the present invention, the preparation method of a steel part comprises the following steps: (a) preparing a material comprising 0.1-0.5 wt % of C, 0.1-0.5 wt % of Si, 0.5-3.0 wt % of Mn, 0.1 wt % or less of P, 0.05 wt % or less of S, 0.01-1.0 wt % of Cr, 0.1 wt % or less of Al, 0.2 wt % or less of Ti, 0.0005-0.08 wt % of B, and the balance of Fe and inevitable impurities; (b) preparing a formed product by forming the material into a predetermined shape; and (c) locally reinforcing the high strength portion by carrying out laser heat treatment on a portion requiring high strength at the formed product.
    Type: Application
    Filed: October 17, 2011
    Publication date: August 14, 2014
    Applicant: HYUNDAI HYSCO
    Inventors: Hee-Joong Im, Seung-Man Nam, Bo-Ryong Lee, Kyung-Bo Kim, Youn-Il Jung
  • Publication number: 20140083574
    Abstract: Disclosed are heat-hardened steel with excellent crashworthiness and a method for manufacturing heat-hardenable parts using the same. The heat-hardened steel according to the invention comprises, based on wt %; C: 0.12-0.8%; Cr: 0.01-2%; Mo: 0.2% or less; B: 0.0005-0.08%; Ca: 0.01 or less; Sb: 1.0% or less; and Ti and/or Nb: 0.2%; and the reminder being Fe and inevitable impurities. In addition, the heat-treatment hardening steel satisfies anyone of following conditions i)-iv), wherein condition i) comprises Si: 0.5-3%; Mn: 1-10% and Al: 0.05-2%; condition ii) comprises Si: 1% or less; Mn: 0.5-5%; Al: 0.1-2.5%; and Ni: 0.01-8%; condition iii) comprises Si: 0.5-3%; Mn: 1-10%; Al: 0.1% or less; and Ni: 0.01-8%; and condition iv) comprises Si: 0.5-3%; Mn: 1-10%; Al: 0.1-2.5%; and Ni: 0.01-8%.
    Type: Application
    Filed: June 30, 2011
    Publication date: March 27, 2014
    Applicant: Hyundai Hysco Co.,Ltd.
    Inventors: Seung-Man Nam, Hee-Joong Im, Seung-Ha Lee, Dong-Eun Kim, Bo-Ryong Lee, Young-Jin Kim, Man-Been Man-Been
  • Patent number: 8257516
    Abstract: The present invention relates to a method of manufacturing ultra-high strength steel products and, more particularly, to a method of manufacturing ultra-high strength steel products suitable for production of articles having a complicated shape or a high processing depth. The method includes preparing a steel sheet by blanking the steel sheet having hardenability to form a rough shape of a final product, cold-pressing the steel sheet to form a 50˜80% shape of the final product, precisely trimming the cold-formed steel sheet along a contour line corresponding to an outer contour of the final product, and hot-pressing the trimmed product to form the remaining 20˜50% shape of the final product and quenching simultaneous with hot-pressing, after heating the trimmed product to an austenite region of 700° C. or more.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: September 4, 2012
    Assignee: Hyundai Hysco
    Inventors: Hee Joong Im, Seung Man Nam, Man Been Moon, Sang Muk Na, Sung Namkoong
  • Publication number: 20120216920
    Abstract: Disclosed herein is method of manufacturing an automobile part having different local strengths, more particularly, a method of manufacturing an automobile part using a steel sheet subjected to heat-treatment hardening and having different local thicknesses. The method includes preparing blank sheets using steel sheets subjected to heat-treatment hardening and having different thicknesses or different material properties according to desired strength; forming a blank assembly by joining the blank sheets to each other via laser welding; cold-pressing the blank assembly; and heating the cold-pressed part to a temperature of AC3 or more, followed by quenching the cold-formed part received within dies to remove residual stress while increasing strength of the automobile part.
    Type: Application
    Filed: November 8, 2010
    Publication date: August 30, 2012
    Applicant: HYUNDAI HYSCO
    Inventors: Seung-Man Nam, Su-Hong Chae, Min-Suck Kwon, Hyo-Sub Kim, Hee-Joong Im, Bo-Ryong Lee, Man-Bean Moon
  • Publication number: 20100269962
    Abstract: The present invention relates to a method of manufacturing ultra-high strength steel products and, more particularly, to a method of manufacturing ultra-high strength steel products suitable for production of articles having a complicated shape or a high processing depth. The method includes preparing a steel sheet by blanking the steel sheet having hardenability to form a rough shape of a final product, cold-pressing the steel sheet to form a 50˜80% shape of the final product, precisely trimming the cold-formed steel sheet along a contour line corresponding to an outer contour of the final product, and hot-pressing the trimmed product to form the remaining 20˜50% shape of the final product and quenching simultaneous with hot-pressing, after heating the trimmed product to an austenite region of 700° C. or more.
    Type: Application
    Filed: May 27, 2009
    Publication date: October 28, 2010
    Applicant: Hyundai Hysco
    Inventors: Hee Joong Im, Seung Man Nam, Man Been Moon, Sang Muk Na, Sung Namkoong
  • Publication number: 20050253084
    Abstract: An ion generation apparatus used in an ion implanter includes a source head for generating ions and a source chamber with a manipulator for extracting only cations from the generated ions. A liner comprising a plurality of sections is installed at inner faces of the source chamber. An existing liner can be periodically replaced with a new liner to shorten a time required for cleaning the inner faces of the source chamber.
    Type: Application
    Filed: March 28, 2005
    Publication date: November 17, 2005
    Inventor: Seung-Man Nam
  • Publication number: 20040228712
    Abstract: A transfer apparatus includes a multi-arm apparatus, a controller, and a vacuum part. The multi-arm apparatus has a plurality of blades for vacuum-absorbing or vacuum-retaining a semiconductor substrate, a fixed body joined to each of blades, and a positioning apparatus joined to each fixed body for rotational or straight-line movement of the fixed body and the blades. The apparatus further includes vacuum lines that are formed within the multi-arm apparatus. The vacuum lines are selectively opened and closed. Even when there is a vacant slot in the FOUP, a plurality of wafers can be concurrently unloaded.
    Type: Application
    Filed: April 27, 2004
    Publication date: November 18, 2004
    Inventors: Seung-Man Nam, Byeong-Ki Rheem, Jin-Hyeung Jang
  • Publication number: 20030132397
    Abstract: An object alignment inspecting apparatus is used to prevent a channeling phenomenon form occurring in an ion implantation process. The apparatus includes a body having the shape of an object to be processed and a series of graduations extending along its outer peripheral edge, a center post protruding from the center of the body; and an indicator having a rotary member freely rotatably mounted to the post and extending from the post to the graduations. In use, the alignment angle inspecting apparatus is placed on the disc of ion implantation equipment that is used to support the object during the ion implantation process. The relative rotational position of the apparatus on the disc is read. This information is used to determine whether the object, when placed on the disc, will assume a relative rotational position which will not give rise to the channeling phenomenon.
    Type: Application
    Filed: July 18, 2002
    Publication date: July 17, 2003
    Inventor: Seung-Man Nam