Patents by Inventor Yun Ju Lee

Yun Ju Lee 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).

  • Publication number: 20210162487
    Abstract: Proposed is a method of manufacturing a hydraulic cylinder rod, the method including the step of deriving an optimal ratio between a metal tube and a composite material round rod when preparing a hybrid round rod by inserting the composite material round rod into the metal tube in order to reduce the weight of an existing metal round rod such as a cylinder rod of a hydraulic cylinder, whereby the hybrid round rod is prepared through the step and then a rod eye is coupled to the hybrid round rod to manufacture the hydraulic cylinder rod.
    Type: Application
    Filed: February 8, 2021
    Publication date: June 3, 2021
    Inventors: Yun Ju LEE, Hye Kyeong LEE, Tae Ho HWANG
  • Publication number: 20210156471
    Abstract: Proposed is a hydraulic cylinder rod in which a rod eye is robustly coupled to a hybrid round rod for weight reduction. To this end, the hydraulic cylinder rod is configured with a hybrid round rod including a metal tube and a composite material round rod provided for weight reduction inside the metal tube, wherein a side of the metal tube is formed to be relatively longer than the length of the composite material round rod to thereby provide a space defined by a length difference therebetween; and a rod eye is coupled to the space.
    Type: Application
    Filed: February 5, 2021
    Publication date: May 27, 2021
    Inventors: Yun Ju LEE, Hye Kyeong LEE, Sang Woo BAEK
  • Patent number: 11004612
    Abstract: MIM capacitors using low temperature sub-nanometer periodic stack dielectrics (SN-PSD) containing repeating units of alternating high dielectric constant materials sublayer and low leakage dielectric sublayer are provided. Every sublayer has thickness less than 1 nm (sub nanometer). The high dielectric constant materials could be one or more different materials. The low leakage dielectric materials could be one or more different materials. For the SN-PSD containing more than two different materials, those materials are deposited in sequence with the leakage current of the materials from the lowest to the highest and then back to the second-lowest, or with the energy band gap of the materials from the widest to the narrowest and then back to the second widest in each periodic cell. A layer of low leakage current dielectric materials is deposited on and/or under SN-PSD. The dielectric constant of SN-PSD is much larger than that of the component oxides and can be readily deposited at 250° C.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: May 11, 2021
    Assignee: MicroSol Technologies Inc.
    Inventors: Yuanning Chen, Jesus Israel Mejia Silva, Chunya Wu, Deborah Jean Riley, Yun-Ju Lee
  • Publication number: 20210129454
    Abstract: Proposed is manufacturing method for a hybrid tube, the method including the step of deriving an optimal ratio between a metal tube and a composite material layer when manufacturing the hybrid tube in which the composite material layer is formed on an outer circumferential surface of the metal tube in order to reduce the weight of an existing metal tube such as a cylinder tube of a hydraulic cylinder. In manufacturing a hybrid tube, it is possible to derive an optimal ratio between heterogeneous materials that can achieve weight reduction while satisfying a target buckling load, thereby making it possible to reduce the weight of tubes of metal materials and apparatuses related to such tubes.
    Type: Application
    Filed: January 13, 2021
    Publication date: May 6, 2021
    Inventors: Yun Ju LEE, Hye Kyeong LEE, Tae Ho HWANG, Yeon Jung JANG
  • Publication number: 20210133373
    Abstract: Proposed is a method of manufacturing a hybrid round rod, the method including the step of calculating an optimal ratio between a metal round rod and a composite material layer when manufacturing the hybrid round rod in which the composite material layer is formed on an outer circumferential surface of the metal round rod, in order to reduce the weight of an existing metal round rod such as a rod of a hydraulic cylinder. As such, the optimal ratio between heterogeneous materials can be derived, so that the weight can be reduced while satisfying a target buckling load when manufacturing the hybrid round rod. Thus, the present disclosure can contribute to reduction of the weight of round rods and tubes of metal materials and the weight of related apparatuses.
    Type: Application
    Filed: January 7, 2021
    Publication date: May 6, 2021
    Inventors: Yun Ju LEE, Hye Kyeong LEE, Tae Ho HWANG, Yeon Jung JANG
  • Publication number: 20210053318
    Abstract: Proposed is a CFRP surface coating method and a hydraulic cylinder including a component coated by the method. The CFRP surface coating method can prevent damage to a CFRP surface due to thermal spray coating and increase the bonding strength between a CFRP surface and a metal coating layer formed by the thermal spray coating. To this end, the method includes: forming a mesh layer on a CFRP surface; fixing the mesh layer on the CFRP surface by impregnating a heat-resistant resin therein; and forming a metal coating layer by thermal spray coating on the fixed mesh layer in which the heat-resistant resin is impregnated.
    Type: Application
    Filed: November 6, 2020
    Publication date: February 25, 2021
    Inventors: Eung Sun Byon, Sung Hun Lee, Uk Hee Nam, Hun Kwan Park, Yeon Woo Yoo, Yun Ju Lee, Hye Kyeong Lee
  • Publication number: 20200294722
    Abstract: MIM capacitors using low temperature sub-nanometer periodic stack dielectrics (SN-PSD) containing repeating units of alternating high dielectric constant materials sublayer and low leakage dielectric sublayer are provided. Every sublayer has thickness less than 1 nm (sub nanometer). The high dielectric constant materials could be one or more different materials. The low leakage dielectric materials could be one or more different materials. For the SN-PSD containing more than two different materials, those materials are deposited in sequence with the leakage current of the materials from the lowest to the highest and then back to the second-lowest, or with the energy band gap of the materials from the widest to the narrowest and then back to the second widest in each periodic cell. A layer of low leakage current dielectric materials is deposited on and/or under SN-PSD. The dielectric constant of SN-PSD is much larger than that of the component oxides and can be readily deposited at 250° C.
    Type: Application
    Filed: March 14, 2019
    Publication date: September 17, 2020
    Applicant: MicroSol Technologies Inc.
    Inventors: Yuanning Chen, Jesus Israel Mejia Silva, Chunya Wu, Deborah Jean Riley, Yun-Ju Lee
  • Publication number: 20190388008
    Abstract: The disclosure provides a system and a method for recognizing a gait. The method includes: bearing a first foot of a user by a bearing surface of a sensing device; sensing a gait applied by the first foot to the bearing surface by a sensor of the sensing device; and recognizing the user based on the gait by a processing device.
    Type: Application
    Filed: October 2, 2018
    Publication date: December 26, 2019
    Applicant: National Tsing Hua University
    Inventor: Yun-Ju Lee
  • Patent number: 10345992
    Abstract: A method and an apparatus for processing unread message unread contents in an electronic device includes displaying a plurality of unread message contents for a particular application, and if all of the unread message contents is not displayable on a single screen, automatically displaying the unread message content is a scroll motion is performed.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: July 9, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soo-Ji Hwang, Yun-Ju Lee
  • Publication number: 20190092839
    Abstract: The present invention relates to the preparation of an antibody analogue capable of being activated reversibly, and uses thereof, and provides a fusion protein comprising an inactive first fragment of an antibody analogue is fused to a stimulus-induced dimerization protein.
    Type: Application
    Filed: December 21, 2016
    Publication date: March 28, 2019
    Inventors: Won Do HEO, Yun Ju LEE, Daseuli YU, Byung Ouk PARK
  • Patent number: 10130335
    Abstract: An ultrasound diagnostic system includes a portable ultrasound diagnostic device and an extended docking device to which the portable ultrasound diagnostic device is detachably mounted, wherein at least one of probes and channels are extended when the portable ultrasound diagnostic device is mounted to the extended docking device. Also, the ultrasound diagnostic system may further include an indoor ultrasound diagnostic device including a portable docking part, and the portable ultrasound diagnostic device may include a cart-based docking part and be connected to the indoor ultrasound diagnostic device. The ultrasound diagnostic system may enhance portability of the portable ultrasound diagnostic device and simultaneously achieves superior ultrasound diagnostic performance and quality also in the portable ultrasound diagnostic device through extension of the probes, signal channels, diagnostic items, or diagnostic performance, as occasion demands.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: November 20, 2018
    Assignee: SAMSUNG MEDISON CO., LTD.
    Inventors: Yun Ju Lee, Sang Gyu Nam
  • Patent number: 9475995
    Abstract: Disclosed are a gas to liquids (GTL)—floating production, storage and offloading (FPSO) system that can be used in offshore oil-gas fields or stranded gas fields and a method for producing synthetic fuel using the same. More particularly, the disclosure relates to a GTL-FPSO system capable of producing liquid synthetic fuel from gas extracted from stranded gas fields or associated gas extracted from oil-gas fields, including a reforming reactor and a liquid hydrocarbon producer, and a method for producing the same.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: October 25, 2016
    Assignee: Korea Institute of Science and Technology
    Inventors: Dong Ju Moon, Yun Ju Lee, Jung Shik Kang, Moonju Park, Sojung Kim, Sang Deuk Lee, Hyunjoo Lee
  • Publication number: 20160137926
    Abstract: Disclosed are a gas to liquids (GTL)—floating production, storage and offloading (FPSO) system that can be used in offshore oil-gas fields or stranded gas fields and a method for producing synthetic fuel using the same. More particularly, the disclosure relates to a GTL-FPSO system capable of producing liquid synthetic fuel from gas extracted from stranded gas fields or associated gas extracted from oil-gas fields, including a reforming reactor and a liquid hydrocarbon producer, and a method for producing the same.
    Type: Application
    Filed: January 27, 2016
    Publication date: May 19, 2016
    Inventors: Dong Ju MOON, Yun Ju Lee, Jung Shik Kang, Moonju Park, Sojung Kim, Sang Deuk Lee, Hyunjoo Lee
  • Patent number: 9272959
    Abstract: Disclosed are a gas to liquids (GTL)-floating production, storage and offloading (FPSO) system that can be used in offshore oil fields or stranded gas fields and a method for producing synthetic fuel using the same. More particularly, the disclosure relates to a GTL-FPSO system capable of producing liquid synthetic fuel from gas extracted from stranded gas fields or associated gas extracted from oil fields, including a reforming reactor and a liquid hydrocarbon producer, and a method for producing the same.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: March 1, 2016
    Assignee: Korea Institute of Science and Technology
    Inventors: Dong Ju Moon, Yun Ju Lee, Jung Shik Kang, Moonju Park, Sojung Kim, Sang Deuk Lee, Hyunjoo Lee
  • Patent number: 9242230
    Abstract: The present invention relates to a method for preparing a cobalt-based catalyst for Fischer-Tropsch synthesis, more particularly to a method for preparing a cobalt-based catalyst represented by Ir—Co/?-Al2O3 wherein cobalt and iridium are supported at high density by repeating impregnation and drying tens of times on a spherical ?-alumina support having many acidic sites. The catalyst prepared according to the present invention can provide improved conversion rate of carbon monoxide and selectivity for liquid hydrocarbons when used for Fischer-Tropsch synthesis.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: January 26, 2016
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Dong Ju Moon, Jae Sun Jung, Jae Suk Lee, Eun Hyeok Yang, Hyun Jin Kim, Bang Hee Kim, Seung Hwan Lee, Yun Ju Lee, Ga Ram Choi
  • Patent number: 9199890
    Abstract: Disclosed are a gas to liquids (GTL)-floating production, storage and offloading (FPSO) system that can be used in offshore oil fields or stranded gas fields and a method for producing synthetic fuel using the same. More particularly, the disclosure relates to a GTL-FPSO system capable of producing liquid synthetic fuel from gas extracted from stranded gas fields or associated gas extracted from oil fields, including a reforming reactor and a liquid hydrocarbon producer, and a method for producing the same.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: December 1, 2015
    Assignee: Korea Institute of Science and Technology
    Inventors: Dong Ju Moon, Yun Ju Lee, Jung Shik Kang, Moonju Park, Sojung Kim, Sang Deuk Lee, Hyunjoo Lee
  • Patent number: 8968601
    Abstract: Disclosed is a catalyst used for steam carbon dioxide reforming of natural gas, wherein an alkaline earth metal alone or an alkaline earth metal and a group 8B metal are supported on a hydrotalcite-like catalyst containing nickel, magnesium and aluminum. The disclosed catalyst is useful as a steam carbon dioxide reforming (SCR) catalyst of natural gas at high temperature and high pressure, while minimizing deactivation of the catalyst due to sintering of the active component nickel and deactivation of the catalyst due to coke generation at the same time. A synthesis gas prepared using the catalyst has a H2/CO molar ratio maintained at 1-2.2. A synthesis gas having a H2/CO molar ratio of 1.8-2.2 may be used as a raw material for Fischer-Tropsch synthesis or methanol synthesis and a synthesis gas having a H2/CO molar ratio of may be used as a raw material for dimethyl ether synthesis.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: March 3, 2015
    Assignee: Korea Institute of Science and Technology
    Inventors: Dong Ju Moon, Yun Ju Lee, Jae Sun Jung, Jin Hee Lee, Seung Hwan Lee, Bang Hee Kim, Hyun Jin Kim, Eun Hyeok Yang
  • Publication number: 20140350357
    Abstract: An ultrasound diagnostic system includes a portable ultrasound diagnostic device and an extended docking device to which the portable ultrasound diagnostic device is detachably mounted, wherein at least one of probes and channels are extended when the portable ultrasound diagnostic device is mounted to the extended docking device. Also, the ultrasound diagnostic system may further include an indoor ultrasound diagnostic device including a portable docking part, and the portable ultrasound diagnostic device may include a cart-based docking part and be connected to the indoor ultrasound diagnostic device. The ultrasound diagnostic system may enhance portability of the portable ultrasound diagnostic device and simultaneously achieves superior ultrasound diagnostic performance and quality also in the portable ultrasound diagnostic device through extension of the probes, signal channels, diagnostic items, or diagnostic performance, as occasion demands.
    Type: Application
    Filed: July 8, 2014
    Publication date: November 27, 2014
    Inventors: Yun Ju LEE, Sang Gyu NAM
  • Publication number: 20140349845
    Abstract: The present invention relates to a method for preparing a cobalt-based catalyst for Fischer-Tropsch synthesis, more particularly to a method for preparing a cobalt-based catalyst represented by Ir—Co/?-Al2O3 wherein cobalt and iridium are supported at high density by repeating impregnation and drying tens of times on a spherical ?-alumina support having many acidic sites. The catalyst prepared according to the present invention can provide improved conversion rate of carbon monoxide and selectivity for liquid hydrocarbons when used for Fischer-Tropsch synthesis.
    Type: Application
    Filed: August 20, 2013
    Publication date: November 27, 2014
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Dong Ju MOON, Jae Sun JUNG, Jae Suk LEE, Eun Hyeok YANG, Hyun Jin KIM, Bang Hee KIM, Seung Hwan LEE, Yun Ju LEE, Ga Ram CHOI
  • Publication number: 20140339475
    Abstract: Disclosed is a catalyst used for steam carbon dioxide reforming of natural gas, wherein an alkaline earth metal alone or an alkaline earth metal and a group 8B metal are supported on a hydrotalcite-like catalyst containing nickel, magnesium and aluminum. The disclosed catalyst is useful as a steam carbon dioxide reforming (SCR) catalyst of natural gas at high temperature and high pressure, while minimizing deactivation of the catalyst due to sintering of the active component nickel and deactivation of the catalyst due to coke generation at the same time. A synthesis gas prepared using the catalyst has a H2/CO molar ratio maintained at 1-2.2. A synthesis gas having a H2/CO molar ratio of 1.8-2.2 may be used as a raw material for Fischer-Tropsch synthesis or methanol synthesis and a synthesis gas having a H2/CO molar ratio of may be used as a raw material for dimethyl ether synthesis.
    Type: Application
    Filed: August 20, 2013
    Publication date: November 20, 2014
    Applicant: Korea Institute of Science and Technology
    Inventors: Dong Ju MOON, Yun Ju LEE, Jae Sun JUNG, Jin Hee LEE, Seung Hwan LEE, Bang Hee KIM, Hyun Jin KIM, Eun Hyeok YANG