Patents by Inventor II Doo Kim

II Doo Kim 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: 20190154645
    Abstract: The inventive concepts relate to a member for a gas sensor, a gas sensor using the same and a manufacturing method thereof, and more particularly, to a member for a gas sensor using a one-dimensional metal oxide nanofiber complex material containing hetero nanoparticle catalysts synthesized using apo-ferritins, a gas sensor using the same, and a manufacturing method thereof. According to embodiments of the inventive concepts, apo-ferritins containing hetero nanoparticle catalysts are mixed with an electrospinning solution, the mixture solution is electrospun to form complex nanofibers, and then a high-temperature thermal treatment process is performed to remove the apo-ferritins. Thus, the hetero nanoparticle catalysts are uniformly fastened to an inside and a surface of one-dimensional metal oxide nanofibers to form a member for a gas sensor.
    Type: Application
    Filed: January 25, 2019
    Publication date: May 23, 2019
    Inventors: II-Doo KIM, Sang-Joon KIM, Seon-Jin CHOI
  • Patent number: 10274467
    Abstract: The inventive concepts relate to a member for a gas sensor, a gas sensor using the same and a manufacturing method thereof, and more particularly, to a member for a gas sensor using a one-dimensional metal oxide nanofiber complex material containing hetero nanoparticle catalysts synthesized using apo-ferritins, a gas sensor using the same, and a manufacturing method thereof. According to embodiments of the inventive concepts, apo-ferritins containing hetero nanoparticle catalysts are mixed with an electrospinning solution, the mixture solution is electrospun to form complex nanofibers, and then a high-temperature thermal treatment process is performed to remove the apo-ferritins. Thus, the hetero nanoparticle catalysts are uniformly fastened to an inside and a surface of one-dimensional metal oxide nanofibers to form a member for a gas sensor.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: April 30, 2019
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Ii-Doo Kim, Sang-Joon Kim, Seon-Jin Choi
  • Publication number: 20170331120
    Abstract: A lithium-air battery catalyst having a 1D polycrystalline tubes structure of a ruthenium oxide-manganese oxide complex includes the ruthenium oxide-manganese oxide complex having at least one polycrystalline tubes structure among a core fiber-shell patterned nanotubes structure and a double walls patterned composite double tubes structure, and the ruthenium oxide-manganese oxide complex is formed as an air electrode catalyst.
    Type: Application
    Filed: July 4, 2016
    Publication date: November 16, 2017
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: II-Doo Kim, Ki Ro Yoon
  • Publication number: 20160077069
    Abstract: The inventive concepts relate to a member for a gas sensor, a gas sensor using the same and a manufacturing method thereof, and more particularly, to a member for a gas sensor using a one-dimensional metal oxide nanofiber complex material containing hetero nanoparticle catalysts synthesized using apo-ferritins, a gas sensor using the same, and a manufacturing method thereof. According to embodiments of the inventive concepts, apo-ferritins containing hetero nanoparticle catalysts are mixed with an electrospinning solution, the mixture solution is electrospun to form complex nanofibers, and then a high-temperature thermal treatment process is performed to remove the apo-ferritins. Thus, the hetero nanoparticle catalysts are uniformly fastened to an inside and a surface of one-dimensional metal oxide nanofibers to form a member for a gas sensor.
    Type: Application
    Filed: September 16, 2015
    Publication date: March 17, 2016
    Inventors: II-Doo Kim, Sang-Joon KIM, Seon-Jin CHOI
  • Patent number: 8713208
    Abstract: A display apparatus connected to a video/audio output device includes at least two connecting portions to connect with the video/audio output device, a first storage unit to store extended display identification data (EDID) information to be provided to the video/audio output device, a second storage unit to store EDID information corresponding to the two connecting portions respectively, and a controller to change the EDID information stored in the first storage unit into one information of a currently connected connecting portion among the EDID information stored in the second storage unit when the connecting portion connected with the video/audio output device is changed.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: April 29, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ho-woong Kang, Ii-doo Kim
  • Publication number: 20110115890
    Abstract: Disclosed are shutter glasses for viewing a stereoscopic image including: a left-eye shutter; a right-eye shutter; and a controller which generates an error signal indicating an error if at least one of a first and a second error condition exists, wherein the first error condition is internal to the shutter glasses, and the second error condition is external to the shutter glasses.
    Type: Application
    Filed: October 15, 2010
    Publication date: May 19, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: II-doo KIM, Do-youn KIM
  • Publication number: 20070100048
    Abstract: The present invention provides a composite dielectric film including a polymer and a ceramic with pyrochlore structure and a method of fabricating the same. The composite dielectric film includes a polymer matrix and a ceramic of a pyrochlore structure filled in such polymer matrix.
    Type: Application
    Filed: December 4, 2006
    Publication date: May 3, 2007
    Applicant: Korea Institute of Science & Technology
    Inventors: II Doo Kim, Jae Min Hong, Ki Hong Park, Seung Hun Choi