Patents by Inventor Jung Woo Choi

Jung Woo Choi 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: 20210040518
    Abstract: The present invention relates to a novel enzyme capable of producing multi-hydroxy derivatives from polyunsaturated fatty acids and a method for producing multi-hydroxy derivatives of polyunsaturated fatty acids using the same.
    Type: Application
    Filed: October 16, 2020
    Publication date: February 11, 2021
    Inventors: Jeong Woo SEO, Jong Jae YI, Sun Yeon HEO, Young Bae KIM, Chul Ho KIM, Baek Rock OH, Jung Hyun JU, Hack Sun CHOI
  • Patent number: 10892647
    Abstract: A wireless power transmitter having a data transmission and reception capability is disclosed. The wireless power transmitter includes a main coil to transmit power, an inverter to apply an alternating current (AC) signal to the main coil, a communication module to output a transmission signal including transmission data to be wirelessly transmitted the wireless power transmitter, and/or receive a reception signal including received data wirelessly received by the wireless power transmitter, a first connecting circuitry to prevent a power signal of the main coil from being input to the communication module, and the auxiliary coil to connect to the main coil and connected to the first connecting circuitry. The main coil or the auxiliary coil may be configured to transmit the transmission data and receive the reception signal, and the auxiliary coil may be wiredly connected to the main coil or not wiredly connected to the main coil.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: January 12, 2021
    Assignee: WITS Co., Ltd.
    Inventors: Se Joo Kim, Jung Woo Choi, Tae Seok Ko, Byoung Woo Ryu
  • Publication number: 20210005954
    Abstract: Various embodiments of the present invention relate to an electronic device comprising a wireless communication circuit, and a portable communication device.
    Type: Application
    Filed: November 5, 2018
    Publication date: January 7, 2021
    Inventors: Dong Ju LEE, Won Jin CHOI, Bong Sup SON, Moon Hyuk CHOI, Se Woong AHN, Su Ho JIN, Jung Hyun PARK, Sung Jun KIM, Sung Chul PARK, Ji Woo LEE
  • Publication number: 20200407506
    Abstract: Embodiments relate to a polyamide-imide film that maintains its mechanical properties at least at a certain level under the conditions of high temperatures and low temperatures and is excellent in transparency and folding characteristics, a process for preparing the same, and a cover window comprising the same. The polyamide-imide film comprises a polyamide-imide polymer and has an MOR value defined in Equation 1a of 75% or more.
    Type: Application
    Filed: June 26, 2020
    Publication date: December 31, 2020
    Inventors: Han Jun KIM, Sunhwan KIM, Dae Seong OH, Jin Woo LEE, Sang Hun CHOI, Jung Hee KI, Dong Jin LIM
  • Publication number: 20200409413
    Abstract: Embodiments relate to a base film that is colorless, transparent, and excellent in mechanical properties and optical properties, particularly with low moisture permeability, a process for preparing the same, and a cover window and a display device comprising the same. The cover window comprises a base film comprising a polyamide-based polymer and having a moisture permeability of 300 g/m2┬Ěday or less; and a functional layer.
    Type: Application
    Filed: June 26, 2020
    Publication date: December 31, 2020
    Inventors: Sunhwan KIM, Jung Hee KI, Han Jun KIM, Dae Seong OH, Jin Woo LEE, Sang Hun CHOI
  • Publication number: 20200407557
    Abstract: Embodiments relate to a polymer film. The polymer film comprises a polymer resin selected from the group consisting of a polyamide-based resin and a polyimide-based resin and has a haze (HZ0) before autoclave treatment of 3% or less and a ?HZ24 represented by Equation 1a of 500% or less.
    Type: Application
    Filed: June 26, 2020
    Publication date: December 31, 2020
    Inventors: Jung Hee KI, Sunhwan KIM, Sang Hun CHOI, Dae Seong OH, Han Jun KIM, Jin Woo LEE, Dong Jin LIM
  • Publication number: 20200407507
    Abstract: Embodiments relate to a polymer film for a display that maintains a clean appearance and transparency and is excellent in antiblocking properties by securing a certain range of optical slip index (OS), a process for preparing the same, and a front panel and a display device comprising the same. The polymer film comprises a polymer resin selected from the group consisting of a polyamide-based resin and a polyimide-based resin and a filler and has an optical slip index (0.5) of less than 0.5.
    Type: Application
    Filed: June 26, 2020
    Publication date: December 31, 2020
    Inventors: Dae Seong OH, Sunhwan KIM, Han Jun KIM, Jin Woo LEE, Sang Hun CHOI, Jung Hee KI
  • Publication number: 20200407556
    Abstract: Embodiments relate to a polymer film that is excellent in folding characteristics and transparency and maintains excellent mechanical properties even after repeated elongation and shrinkage in the elastic region, a process for preparing the same, and a front panel and a display device comprising the same. The polymer film comprises a polymer resin selected from the group consisting of a polyamide-based resin and a polyimide-based resin and has an MOR0/9 of Equation A of 2% or less.
    Type: Application
    Filed: June 26, 2020
    Publication date: December 31, 2020
    Inventors: Jung Hee KI, Sunhwan KIM, Han Jun KIM, Dae Seong OH, Jin Woo LEE, Sang Hun CHOI, Gun Uk KIM
  • Publication number: 20200411799
    Abstract: A display device includes a base substrate, an organic layer on the base substrate and including a pattern region having an uneven pattern formed thereon, and a non-pattern region having a substantially flat surface, a light-emitting element on the organic layer, and a color conversion pattern on the light-emitting element and overlapping the pattern region and the non-pattern region.
    Type: Application
    Filed: September 15, 2020
    Publication date: December 31, 2020
    Inventors: Jung Ho CHOI, June Woo LEE
  • Publication number: 20200407519
    Abstract: The polymer film according to an embodiment comprises at least one polymer resin selected from the group consisting of a polyamide-based resin, a polyimide-based resin, and a polyamide-imide-based resin, and has a haze of 0.6% or less and an in-plane retardation within a specific range for each wavelength band in the visible light region. The polymer film, which has an in-plane retardation within a specific range for each wavelength band in the visible light region, is excellent in transparency and optical properties, and it can remarkably reduce the rainbow phenomenon and improve the reflection appearance.
    Type: Application
    Filed: June 26, 2020
    Publication date: December 31, 2020
    Inventors: Jung Hee KI, Sunhwan KIM, Dae Seong OH, Jin Woo LEE, Sang Hun CHOI, Han Jun KIM, Heung Sik KIM
  • Publication number: 20200407521
    Abstract: Embodiments relate to a polyamide-imide film that has a clean appearance and transparency and is excellent in antiblocking properties, a process for preparing the same, and a display front panel and a display device comprising the same. The polyamide-imide film comprises a polyamide-imide polymer formed by polymerizing a diamine compound, a dianhydride compound, and a dicarbonyl compound; and a filler, wherein the dicarbonyl compound comprises a first dicarbonyl compound and a second dicarbonyl compound, the first dicarbonyl compound and the second dicarbonyl compound are structural isomers to each other, and the FH value of Equation 1 is 0.5 or less.
    Type: Application
    Filed: June 26, 2020
    Publication date: December 31, 2020
    Inventors: Dae Seong OH, Jung Hee KI, Sunhwan KIM, Han Jun KIM, Jin Woo LEE, Sang Hun CHOI
  • Publication number: 20200407522
    Abstract: Embodiments relate to a polyamide-based film that is colorless and transparent, is excellent in mechanical properties and optical properties, has a wide angle of view by securing at least a certain level of luminance at various angles, and, in particular, has gloss characteristics similar to those of glass, a process for preparing the same, and a cover window comprising the same. The polyamide-based film comprises a polyamide-based polymer, wherein when the polyamide-based film is placed on a surface light source, light is irradiated from the surface light source, and the luminance value (L0) measured in the normal direction of the surface light source is 100%, the luminance value (L50) measured in the direction of 50┬░ from the normal direction of the surface light source is 25% or more.
    Type: Application
    Filed: June 26, 2020
    Publication date: December 31, 2020
    Inventors: Sang Hun Choi, Jin Woo Lee, Dae Seong Oh, Jung Hee Ki, Sunhwan Kim, Han Jun Kim, Heung Sik Kim
  • Publication number: 20200404594
    Abstract: An operation method of a first terminal, performed in a communication system, may comprise receiving sidelink resource allocation information from a base station; receiving a first sidelink signal from a second terminal based on the sidelink resource allocation information; calculating a path loss experienced by the first sidelink signal based on the first sidelink signal; transmitting a second sidelink signal including information on the path loss experienced by the first sidelink signal to the second terminal; and receiving, from the second terminal, a third sidelink signal to which a sidelink transmit power determined based on the path loss is allocated.
    Type: Application
    Filed: June 17, 2020
    Publication date: December 24, 2020
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Go San NOH, Seon Ae KIM, IL GYU KIM, Jun Hyeong KIM, Hee Sang CHUNG, Dae Soon CHO, Sung Woo CHOI, Seung Nam CHOI, Jung Pil CHOI
  • Patent number: 10869049
    Abstract: The present invention relates to an image encoding/decoding method and device. The image decoding method according to the present invention comprises the steps of: decoding a prediction mode index; determining whether the prediction mode index indicates function-based intra prediction; inducing a parameter (s) for generating a function, when the prediction mode index indicates the function-based intra prediction; generating the function on the basis of the induced parameter (s); and performing intra prediction by using the generated function.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: December 15, 2020
    Assignee: RESEARCH & BUSINESS FOUNDATION SUNGYUNWAN UNIVERSITY
    Inventors: Seung Hyun Cho, Jung Won Kang, Hyun Suk Ko, Sung Chang Lim, Jin Ho mes Lee, Ha Hyun Lee, Dong San Jun, Hui Yong Kim, Byeung Woo Jeon, Nam Uk Kim, Seung Su Jeon, Jin Soo Choi
  • Publication number: 20200388951
    Abstract: The present invention relates to a receptacle connector comprising=a plurality of contacts for electrically connecting a plug connector and a substrate coupled to an electronic device; an insulation part to which the contacts are coupled; a shell to which the insulation part is coupled; a cover to which the shell is coupled; and a sealing member coupled to the shell so as to seal a gap between the electronic device and the shell. The shell includes a shell body; a support member; and a protruding member formed on the support member. The support member protrudes forwards from the cover and is coupled to the cover so as to be located on the outside of the cover, and the protruding member protrudes outwards from the support member and is coupled to the support member so as to limit a distance by which the sealing member can move rearwards.
    Type: Application
    Filed: November 28, 2018
    Publication date: December 10, 2020
    Inventors: Jung Hoon CHOI, Hyun Woo LEE, Soo Hwan PARK
  • Publication number: 20200388686
    Abstract: A method for fabricating a semiconductor device includes forming a stack structure including a horizontal recess over a substrate, forming a blocking layer lining the horizontal recess, forming an interface control layer including a dielectric barrier element and a conductive barrier element over the blocking layer, and forming a conductive layer over the interface control layer to fill the horizontal recess.
    Type: Application
    Filed: January 13, 2020
    Publication date: December 10, 2020
    Inventors: Hyeng-Woo EOM, Jung-Myoung SHIM, Young-Ho YANG, Kwang-Wook LEE, Won-Joon CHOI
  • Patent number: 10863633
    Abstract: An exemplary embodiment provides a display device including: a display panel configured to include a first area, and a second area and a third area respectively disposed at opposite sides of the first area in a first direction; a first roller unit configured to wind the second area thereon; and a second roller unit configured to wind the third area of the display panel in an opposite direction to that of the first roller unit, wherein a distance between the first roller unit and the second roller unit which are separated from each other in the first direction can be adjusted.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: December 8, 2020
    Inventors: Jin Hwan Choi, Min-Sung Kim, Hyun Woo Koo, Jeong Ho Kim, Tae Woong Kim, Tae An Seo, Jung Hun Lee
  • Patent number: 10847300
    Abstract: There are provided an inductor and a method of manufacturing the same. The inductor includes: a body including a coil part; and cover parts disposed on upper and lower surfaces of the body. The coil part includes a plurality of through-vias penetrating through the upper and lower surfaces of the body and connection patterns disposed on the upper and lower surfaces of the body, disposed in the cover parts, and connecting the plurality of through-vias to each other.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: November 24, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jung Woo Choi, Jin Ho Hong, Il Jong Seo, Sa Yong Lee, Myung Sam Kang, Tae Hong Min
  • Patent number: 10822720
    Abstract: A method for preparing a SiC ingot includes loading a composition of a raw material comprising a carbon source and a silicon source into a reactor; placing a plurality of seed crystal on one side of the reactor spaced apart from the composition; and sublimating the composition such that the SiC ingot grows from the plurality of seed crystal. A flow factor of the composition may be 5 to 35.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: November 3, 2020
    Assignee: SKC Co., Ltd.
    Inventors: Jong Hwi Park, Myung-Ok Kyun, Sang Ki Ko, Kap-Ryeol Ku, Jung-Gyu Kim, Jongmin Shim, Byung Kyu Jang, Jung Woo Choi
  • Publication number: 20200333328
    Abstract: A biological environment simulating apparatus using rotational force includes a mounting unit on which a cell to be pressurized is mounted, a rotational force application unit configured to apply centripetal force to the mounting unit to make the mounting unit perform a circular movement along a circular path about a predetermined center point and a control unit. The control unit controls the rotational force application unit based on a type of the cell and an appropriate pressure condition matched with the type of the cell so that a pressure satisfying the appropriate pressure condition is applied to the cell.
    Type: Application
    Filed: July 6, 2020
    Publication date: October 22, 2020
    Inventors: Seung Hee YANG, Jin Woo CHOI, Dong Ki KIM, Jung Pyo LEE, Yon Su KIM, Young Chul KIM, Hee Chan KIM, Mi Yeon YU, Sa Ram LEE