Patents by Inventor Do Kyung Hwang

Do Kyung Hwang 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: 20180116592
    Abstract: The present invention relates to a fibrous transistor, and a method of manufacturing the same, and more particularly, to a fibrous transistor, in which a source fiber and a drain fiber are formed in a twisted state in a longitudinal direction, so that a contact surface of the source fiber and the drain fiber is increased, thereby enabling charges to easily move, and a method of manufacturing the same. Further, the present invention relates to a fibrous transistor, in which a gate insulating layer is formed by using ion gel, so that the fibrous transistor may obtain a high current at the same operation voltage, thereby having a low operation voltage, and a method of manufacturing the same.
    Type: Application
    Filed: February 10, 2017
    Publication date: May 3, 2018
    Inventors: Jung Ah LIM, SOO JIN KIM, Jeon Kook LEE, Do Kyung Hwang
  • Publication number: 20170271537
    Abstract: Embodiments are directed to a chalcogenide material-based filterless color image sensor, which includes a substrate, a first chalcogenide material layer formed on a substrate for a first color, a second chalcogenide material layer formed on the first chalcogenide material layer for a second color, and a third chalcogenide material layer formed on the second chalcogenide material layer for a third color.
    Type: Application
    Filed: February 28, 2017
    Publication date: September 21, 2017
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Suyoun LEE, Byung-ki CHEONG, Seong Keun KIM, Do Kyung HWANG, Hyunsu JU, Young Tack LEE
  • Patent number: 9684100
    Abstract: Provided are an anti-reflection nano-coating structure and a method of manufacturing the same. The anti-reflection nano-coating structure has low dependency on incident light. The anti-reflection nano-coating structure has a normal-align nano-structure on the entire surface of the substrate regardless of curvature of the substrate by controlling a ratio of reactive gas during sputtering.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: June 20, 2017
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Won Kook Choi, Dong Hee Park, Chang Hwan Wie, Do Kyung Hwang
  • Patent number: 9368737
    Abstract: A field-effect transistor includes a gate, a source and a drain; a semiconductor layer between the source and the drain; and a gate insulator between the gate and the semiconductor layer. The gate insulator comprises a first layer adjoining the semiconductor layer; and a second layer. The first layer is formed from an amorphous fluoropolymer having a first dielectric constant and a first thickness. The second layer has a second dielectric constant and a second thickness. The first dielectric constant is smaller than 3, the first thickness is smaller than 200 nm, the second dielectric constant is higher than 5, and the second thickness is smaller than 500 nm.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: June 14, 2016
    Assignee: Georgia Tech Research Corporation
    Inventors: Do Kyung Hwang, Jungbae Kim, Canek Fuentes-Hernandez, Bernard Kippelen
  • Publication number: 20160054476
    Abstract: Provided are an anti-reflection nano-coating structure and a method of manufacturing the same. The anti-reflection nano-coating structure has low dependency on incident light. The anti-reflection nano-coating structure has a normal-align nano-structure on the entire surface of the substrate regardless of curvature of the substrate by controlling a ratio of reactive gas during sputtering.
    Type: Application
    Filed: August 13, 2015
    Publication date: February 25, 2016
    Inventors: Won Kook CHOI, Dong Hee PARK, Chang Hwan WIE, Do Kyung HWANG
  • Patent number: 8912535
    Abstract: The various inventions and/or their embodiments disclosed herein relate to certain naphthalene diimide (NDI) compounds wherein the NDI groups are bonded to certain subclasses of bridging heteroaryl (hAr) groups, such as the “NDI-hAr-NDI” oligomeric compounds, wherein hAr is a heteroaryl group chosen to provide desirable electronic and steric properties, and the possible identities of the “Rz” terminal peripheral substituent groups are described herein. Transistor and inverter devices can be prepared.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: December 16, 2014
    Assignee: Georgia Tech Research Corporation
    Inventors: Lauren E. Polander, Shree Prakash Tiwari, Seth Marder, Bernard Kippelen, Raghunath R. Dasari, Yulia A. Getmanenko, Do Kyung Hwang, Mathieu Fenoll
  • Publication number: 20140221664
    Abstract: The inventions disclosed and described herein relate to new and efficient generic methods for making a wide variety of compounds having HAr—Z-Har tricyclic cores, wherein HAr is an optionally substituted five or six membered heteroaryl ring, and Hal is a halogen, and Z is a bridging radical, such as S, Sc, NR5, C(O), C(O)C(O), Si(R5)2, SO, SO2, PR5, BR5, C(R5)2 or P(O)R5 and both HAr are covalently bound to one another. The synthetic methods employ a “Base-Catalyzed Halogen Dance” reaction to prepare a metallated compound comprising a five or six membered heteroaryl ring comprising a halogen atom, and then oxidatively coupling the reactive intermediate compound. The compounds of Formula (II) and/or oligomer or polymers comprising repeat units having Formula (II) can be useful for making semi-conducting materials, and/or electronic devices comprising those materials. Acyl compounds can be prepared. Heteroarylene substituents can be used. The core tricyclic core can be coupled to itself.
    Type: Application
    Filed: August 9, 2012
    Publication date: August 7, 2014
    Applicant: GEORGIA TECH RESEARCH CORPORATION
    Inventors: Yulia A. Getmanenko, Seth Marder, Do Kyung Hwang, Bernard Kippelen
  • Publication number: 20130270534
    Abstract: A field-effect transistor includes a gate, a source and a drain; a semiconductor layer between the source and the drain; and a gate insulator between the gate and the semiconductor layer. The gate insulator comprises a first layer adjoining the semiconductor layer; and a second layer. The first layer is formed from an amorphous fluoropolymer having a first dielectric constant and a first thickness. The second layer has a second dielectric constant and a second thickness. The first dielectric constant is smaller than 3, the first thickness is smaller than 200 nm, the second dielectric constant is higher than 5, and the second thickness is smaller than 500 nm.
    Type: Application
    Filed: October 5, 2011
    Publication date: October 17, 2013
    Applicant: GEORGIA TECH RESEARCH CORPORATION
    Inventors: Do Kyung Hwang, Jungbae Kim, Canek Fuentes-Hernandez, Bernard Kippelen