Patents by Inventor Yong-Hyun Yoo

Yong-Hyun Yoo 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: 9573219
    Abstract: A method for welding tubes in a shell and tube heat exchanger, including forming ring-shaped tube sheet grooves on the tube sheet at the shell side, inserting tube joint members into the tube insertion holes of the tube sheet, producing ring wires by cutting a welding wire into pieces and bending the pieces into a ring shape, affixing the ring wire to the outer circumference of one end of the tube, inserting the end of the tube into the tube sheet such that the end of the tube contacts one end of the tube joint member and is located within the recessed distance range of the tube sheet groove, and performing shell side welding by inserting a welding torch into the tube joint member and welding the end of the tube joint member, the end of the tube and the joint part to the tube sheet at the shell side using the ring wire as filler metal.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: February 21, 2017
    Assignee: SEWON CELLONTECH CO., LTD.
    Inventors: Yong Hyun Yoo, Kang Jun Lee, Shin Ghu Park, Jeong Cheol Ju, Jeong Seok Oh, You Jin Park
  • Publication number: 20160288240
    Abstract: A method for welding tubes to tube insertion holes formed through tube sheets of a shell and tube heat exchanger, including forming ring-shaped tube sheet grooves, spaced from the tube insertion holes by a designated distance in the outer circumferential direction, on one surface of the tube sheet at the shell side, inserting tube joint members, having a cylindrical shape with the same diameter as that of the tubes, into the tube insertion holes of the tube sheet, manufacturing ring wires by cutting a welding wire having a long length into pieces having a designated length and bending the pieces into a ring shape so as to be inserted into the outer circumferences of the tubes, inserting the ring wire into the outer circumference of one end of the tube, inserting the one end of the tube into the tube sheet in one direction such that the one end of the tube contacts one end of the tube joint member facing the one end of the tube and is located within the recessed distance range of the tube sheet groove, perform
    Type: Application
    Filed: March 28, 2016
    Publication date: October 6, 2016
    Inventors: Yong Hyun Yoo, Kang Jun Lee, Shin Ghu Park, Jeong Cheol Ju, Jeong Seok Oh, You Jin Park
  • Publication number: 20160288232
    Abstract: A shell having a cylindrical body, a pair of tube sheets installed to divide the inside of the shell and provided with a plurality tube insertion holes formed therethrough so as to face each other, and a plurality of tubes respectively welded to the tube insertion holes facing each other to connect the tube sheets, and further including a plurality of tube joint members having the same diameter as that of the tubes and respectively inserted into the tube insertion holes of the tube sheets, and a plurality of ring wires manufactured by cutting a welding wire having a long length into pieces having a designated length and bending the pieces into a ring shape and inserted into the outer circumferences of both ends of the tubes, wherein ring-shaped tube sheet grooves spaced from the tube insertion holes by a designated distance in the outer circumferential surface are formed on each of facing surfaces of the tube sheets so as to form joint parts, both ends of the tubes are inserted into the tube insertion holes o
    Type: Application
    Filed: March 28, 2016
    Publication date: October 6, 2016
    Inventors: Yong Hyun Yoo, Kang Jun Lee, Shin Ghu Park, Jeong Cheol Ju, Young Sik Ji, Deung Seob Bae
  • Publication number: 20090126285
    Abstract: A facility module is provided for producing and storing a cell therapy product comprising: a Cell Therapy (CT) module one including separately prefabricated units having specific functions and separate entrances and exits so as to minimize contamination, and being capable of producing the cell therapy product, and a Banking of Cell and Tissue (BC) module Two including prefabricated units having specific functions and separate entrances and exits so as to minimize contamination, and being capable of appropriately storing hematopoietic stem cells, bone marrow cells and other cells for a prolonged period. It enables easy and low cost production of the cell therapy product, with sufficient quality to be transplanted into patients, within a short period, and permits clinical application to patients expeditiously.
    Type: Application
    Filed: March 16, 2006
    Publication date: May 21, 2009
    Inventors: Dong-Sam Suh, Chang-Kwon Ko, Seung-Ju Ryu, Sung-Jun Koh, Eun-Young Lee, Soo-Jin Jung, Dong-il Chang, Jun-Keun Lee, Hyun-Gi Yoon, Hyang-Soon Chang, Yong-Hyun Yoo, Jin-Wook Chung, Cheong-Ho Chang