Patents by Inventor Hyang-wook Ma

Hyang-wook Ma 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).

  • Method for launching/constructing bridge using assembly of precast bottom plate and concrete-filled steel tube truss girder
    Patent number: 10161090
    Abstract: A method for launching/constructing a bridge using assembly of a precast bottom plate and a concrete-filled steel tube truss girder, wherein a CFT truss girder and a precast bottom plate are provisionally assembled, thereby forming a segment, and then a plurality of segments are successively launched, thereby constructing a bridge.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: December 25, 2018
    Assignee: Korea Railroad Research Institute
    Inventors: Kyoung Chan Lee, In Ho Yeo, Sung Il Kim, Seung Yup Jang, Hyun-Min Kim, Ki Hyun Kim, Hyang Wook Ma, Young Hak Kwak, Yoon Bong Shin, In Gyu Kim, Young Jin Kim
  • METHOD FOR LAUNCHING/CONSTRUCTING BRIDGE USING ASSEMBLY OF PRECAST BOTTOM PLATE AND CONCRETE-FILLED STEEL TUBE TRUSS GIRDER
    Publication number: 20180291570
    Abstract: The present invention relates to a method for launching/constructing a bridge using assembly of a precast bottom plate and a concrete-filled steel tube truss girder, wherein a CFT truss girder and a precast bottom plate are provisionally assembled, thereby forming a segment, and then a plurality of segments are successively launched, thereby constructing a bridge.
    Type: Application
    Filed: October 26, 2015
    Publication date: October 11, 2018
    Inventors: Kyoung Chan Lee, In Ho Yeo, Sung Il Kim, Seung Yup Jang, Hyun-Min Kim, Ki Hyun Kim, Hyang Wook Ma, Young Hak Kwak, Yoon Bong Shin, In Gyu Kim, Young Jin Kim
  • Method of installing prefabricated, segment concrete filled tube members
    Patent number: 7546656
    Abstract: A method of installing segmental concrete filled tube members. The prefabricated segmental concrete filled tube member has a hollow pipe filled therein with concrete, and a connection flange shaped in a ring radially extending from the peripheries of both ends of the pipe, wherein the segmental concrete filled tube member is integrally connected with another adjacent segmental concrete filled tube member by the connection flange.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: June 16, 2009
    Assignee: Daewoo Engineering & Construction Co., Ltd
    Inventors: Seong-woon Kim, Young-jin Kim, In-gyu Kim, Byeong-moo Jin, Tae-hoon Kim, Hyang-wook Ma, Yun-seok Lee
  • Prefabricated segmental concrete filled tube member, and fabrication structure and method using the same
    Publication number: 20070039283
    Abstract: A prefabricated segmental concrete filled tube member, and fabrication structure and method using the same are provided. The prefabricated segmental concrete filled tube member has a hollow pipe filled therein with concrete, and a connection flange shaped in a ring radially extending from the peripheries of both ends of the pipe, wherein the segmental concrete filled tube member is integrally connected with another adjacent segmental concrete filled tube member by the connection flange.
    Type: Application
    Filed: May 10, 2006
    Publication date: February 22, 2007
    Inventors: Seong-woon Kim, Young-jin Kim, In-gyu Kim, Byeong-moo Jin, Tae-hoon Kim, Hyang-wook Ma, Yun-seok Lee