Patents by Inventor Im-Jun Roh

Im-Jun Roh 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 manufacturing thermoelectric material having high efficiency
    Patent number: 10529905
    Abstract: A method for manufacturing a thermoelectric material is provided. According to the method, a first shaped body is formed from a thermoelectric powder, of which a crystal has a layer structure. An extruded body is formed by extruding the first shaped body. A plurality of cut-off pieces are formed by cutting the extruded body along a cross-section perpendicular to an extrusion direction. A second shaped body is formed by stacking and pressing the cut-off pieces along a direction perpendicular to the extrusion direction. According to the above, a thermoelectric ability of a thermoelectric material and an efficiency for manufacturing a thermoelectric module may be improved.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: January 7, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Jin-Sang Kim, Seung-Hyub Baek, Seong-Keun Kim, Dow-Bin Hyun, Beomjin Kwon, Ji-Won Choi, Chong-Yun Kang, Im-Jun Roh
  • METHOD FOR MANUFACTURING THERMOELECTRIC MATERIAL HAVING HIGH EFFICIENCY AND METHOD FOR MANUFACTURING THERMOELECTRIC MODULE
    Publication number: 20180138386
    Abstract: A method for manufacturing a thermoelectric material is provided. According to the method, a first shaped body is formed from a thermoelectric powder, of which a crystal has a layer structure. An extruded body is formed by extruding the first shaped body. A plurality of cut-off pieces are formed by cutting the extruded body along a cross-section perpendicular to an extrusion direction. A second shaped body is formed by stacking and pressing the cut-off pieces along a direction perpendicular to the extrusion direction.
    Type: Application
    Filed: May 31, 2017
    Publication date: May 17, 2018
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jin-Sang KIM, Seung-Hyub Baek, Seong-Keun Kim, Dow-Bin Hyun, Beomjin Kwon, Ji-Won Choi, Chong-Yun Kang, Im-Jun Roh