Patents by Inventor Ji Eun CHOI

Ji Eun 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: 20220218715
    Abstract: The present invention relates to a pharmaceutical composition for the prevention or treatment of cancer, comprising an anticancer drug and a pyrrolo-pyridine derivative as an active ingredient. A compound represented by Chemical Formula I according to the present invention, an isomer thereof, or a pharmaceutically acceptable salt thereof has excellent inhibitory activity against protein kinases, and thus, when used in combination with other anticancer drugs, can be effectively used in the prevention, treatment or amelioration of cancer.
    Type: Application
    Filed: May 22, 2020
    Publication date: July 14, 2022
    Inventors: Jae Young AHN, Hwan KIM, Dong Hyuk SEO, Ji Eun CHOI, Hye Min HWANG, Hyun Kyung KIM, Sung Hwan KIM, Dae Kwon KIM
  • Publication number: 20220184543
    Abstract: A portable air purifier is provided that may include a housing having an inlet forming a passage through which air is suctioned into the housing, a filter disposed at an upper side of the inlet and configured to purify air suctioned in through the inlet and flowing upward, an irradiator disposed at a lower side of the filter, installed at a height at which the irradiator overlaps the inlet and configured to irradiate light for sterilization onto the filter, and a sterilizer support configured to support the irradiator and configured to be fixed to the housing and disposed around an outer perimeter of the irradiator.
    Type: Application
    Filed: October 22, 2021
    Publication date: June 16, 2022
    Inventors: Ji Eun CHOI, Hyungho PARK, Seongkyeol HONG
  • Publication number: 20220162179
    Abstract: The present invention relates to a method for the synthesis of 2,5-furandicarboxylic acid, and more specifically, the present invention relates to a more efficient and economical method capable of preparing 2,5-furandicarboxylic acid having various functions with high purity and high yield, even without using a transition metal catalyst.
    Type: Application
    Filed: March 20, 2020
    Publication date: May 26, 2022
    Applicants: SAMYANG CORPORATION, RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Chun Rim OH, Deuk Rak LEE, Won Jung LEE, Chi Wan LEE, Ji Eun CHOI, Young Sug KIM, Jung Woon YANG, Tae Woo LEE
  • Patent number: 11342401
    Abstract: A display device includes: a base substrate having a display region including a first region and a second region, and a non-display region; a first semiconductor layer including polysilicon at the second region; a first conductive layer on a first insulating layer, and including a bottom gate electrode at the first region and a second-first gate electrode at the second region; a second semiconductor layer including an oxide on a second insulating layer at the first region; a second conductive layer on a third insulating layer, and including a top gate electrode at the first region and a second-second gate electrode at the second region; and a third conductive layer on a fourth insulating layer, and including a first source electrode and a first drain electrode connected to the second semiconductor layer, and a second source electrode and a second drain electrode connected to the first semiconductor layer.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: May 24, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji Eun Choi, Deok Hoi Kim, Jeong Hwan Kim, Jong Baek Seon, Jun Cheol Shin, Jae Hak Lee
  • Publication number: 20220090814
    Abstract: An air cleaning system can rapidly senses occurrence of local pollution, caused by fine dust, through a remote sensor hub and supplies purified air to a polluted area in a concentrated manner, thereby quickly purifying indoor air.
    Type: Application
    Filed: September 2, 2021
    Publication date: March 24, 2022
    Inventors: Ji Eun CHOI, Hyungho PARK, Jinhee NOH, Dongryul PARK, Seongman JANG
  • Publication number: 20210013280
    Abstract: A display device includes: a base substrate having a display region including a first region and a second region, and a non-display region; a first semiconductor layer including polysilicon at the second region; a first conductive layer on a first insulating layer, and including a bottom gate electrode at the first region and a second-first gate electrode at the second region; a second semiconductor layer including an oxide on a second insulating layer at the first region; a second conductive layer on a third insulating layer, and including a top gate electrode at the first region and a second-second gate electrode at the second region; and a third conductive layer on a fourth insulating layer, and including a first source electrode and a first drain electrode connected to the second semiconductor layer, and a second source electrode and a second drain electrode connected to the first semiconductor layer.
    Type: Application
    Filed: April 3, 2020
    Publication date: January 14, 2021
    Inventors: Ji Eun CHOI, Deok Hoi KIM, Jeong Hwan KIM, Jong Baek SEON, Jun Cheol SHIN, Jae Hak LEE
  • Patent number: 10815275
    Abstract: Antimicrobial peptoids with improved selectivity to bacteria and a use thereof are described. Specifically, the antimicrobial peptoids have high antimicrobial activity and greatly decreased toxicity to animal cells. The antimicrobial peptoids show excellent antimicrobial activity against bacteria and exhibit low cytotoxicity to animal cells due to altered degree of folding in helical structure or altered charge characteristics. Therefore, the antimicrobial peptoids have improved selectivity to bacteria, and thus can be usefully used as antimicrobial compositions.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: October 27, 2020
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jiwon Seo, Ho Yeon Nam, Ji Eun Choi
  • Patent number: 10805721
    Abstract: An apparatus and method for preventing an electronic device from recording. The apparatus includes a control unit for generating a first modulation signal and controlling the components of the apparatus; a first modulation unit for modulating the first modulation signal to an FM signal; an ultrasonic signal generation unit for generating an ultrasonic signal, the frequency of which is adjusted by changing the value of at least one of a variable resistor and a variable capacitor depending on the magnitude of the FM signal; an amplification unit for increasing or decreasing the magnitude of the ultrasonic signal; a resonance unit for increasing the voltage to be applied to a transducer by generating resonance; and an ultrasound output unit for converting electrical signals into ultrasonic signals using the transducer and radiating a recording prevention signal, converted into the ultrasonic signal, to the microphone of an electronic device.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: October 13, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Chi Hoon Choi, Ji Eun Choi, Young Jun Lee, Heesun Park, Young Hyoun Kwon, Sae-Hoon Ju, Kyung-Hoon Lee
  • Publication number: 20200228897
    Abstract: An apparatus and method for preventing an electronic device from recording. The apparatus includes a control unit for generating a first modulation signal and controlling the components of the apparatus; a first modulation unit for modulating the first modulation signal to an FM signal; an ultrasonic signal generation unit for generating an ultrasonic signal, the frequency of which is adjusted by changing the value of at least one of a variable resistor and a variable capacitor depending on the magnitude of the FM signal; an amplification unit for increasing or decreasing the magnitude of the ultrasonic signal; a resonance unit for increasing the voltage to be applied to a transducer by generating resonance; and an ultrasound output unit for converting electrical signals into ultrasonic signals using the transducer and radiating a recording prevention signal, converted into the ultrasonic signal, to the microphone of an electronic device.
    Type: Application
    Filed: January 23, 2019
    Publication date: July 16, 2020
    Inventors: Chi Hoon CHOI, Ji Eun CHOI, Young Jun LEE, Heesun PARK, Young Hyoun KWON, Sae-Hoon JU, Kyung-Hoon LEE
  • Patent number: 10547571
    Abstract: A message service providing method for a message service linked to a search service and a message server and a user terminal for performing the method are disclosed. The message service providing method includes identifying an instant message input through a message input box of a message application switching from a chat mode to a search mode or a suggested search word selected from suggested search words in a suggested search word list displayed in conjunction with the message input box, transferring, to a search server, a search request for a search word including a whole or a portion of the identified instant message or suggested search word in response to a user input provided to the message application, receiving search result data derived through the search word.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: January 28, 2020
    Assignee: KAKAO CORP.
    Inventors: June Seong Joe, Doo Wahn Park, Won Muk Kim, Dong Ho Shin, Ji Hye Choe, Seung Jin Park, Hyun Hee Park, Ji Eun Choi, Seung Uk Seo, Yu Mi Kim, Jin Woo Choi, Yang Kyun Park
  • Publication number: 20190284238
    Abstract: The present invention relates to antimicrobial peptoids with improved selectivity to bacteria and a use thereof. Specifically, the present invention relates to antimicrobial peptoids having high antimicrobial activity and greatly decreased toxicity to animal cells. The antimicrobial peptoids of the present invention show excellent antimicrobial activity against bacteria and exhibit low cytotoxicity to animal cells due to altered degree of folding in helical structure or altered charge characteristics. Therefore, the antimicrobial peptoids of the present invention have improved selectivity to bacteria, and thus can be usefully used as antimicrobial compositions.
    Type: Application
    Filed: March 19, 2019
    Publication date: September 19, 2019
    Inventors: Jiwon SEO, Ho Yeon NAM, Ji Eun CHOI
  • Publication number: 20160330150
    Abstract: A message service providing method for a message service linked to a search service and a message server and a user terminal for performing the method are disclosed. The message service providing method includes identifying an instant message input through a message input box of a message application switching from a chat mode to a search mode or a suggested search word selected from suggested search words in a suggested search word list displayed in conjunction with the message input box, transferring, to a search server, a search request for a search word including a whole or a portion of the identified instant message or suggested search word in response to a user input provided to the message application, receiving search result data derived through the search word.
    Type: Application
    Filed: May 5, 2016
    Publication date: November 10, 2016
    Applicant: KAKAO CORP.
    Inventors: June Seong JOE, Doo Wahn PARK, Won Muk KIM, Dong Ho SHIN, Ji Hye CHOE, Seung Jin PARK, Hyun Hee PARK, Ji Eun CHOI, Seung Uk SEO, Yu Mi KIM, Jin Woo CHOI, Yang Kyun PARK
  • Patent number: 9376554
    Abstract: The rubber composition for tire tread and a tire includes 100 parts by weight of a raw material rubber that includes 20 parts by 80 parts by weight of a first solution polymerized styrene-butadiene rubber (SBR1) having a styrene content of 15% to 25% by weight and a vinyl content in the butadiene of 60% to 65% by weight and produced by a batch method; and 60 parts to 90 parts by weight of a silica having a specific surface area measured by nitrogen adsorption of 155 m2/g to 185 m2/g and a CTAB value of 150 m2/g to 170 m2/g.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: June 28, 2016
    Assignee: HANKOOK TIRE CO., LTD.
    Inventors: Ji Eun Choi, Ho Youn Kang
  • Publication number: 20150166773
    Abstract: Provided are a sidewall insert rubber composition for run-flat tire, which includes 100 parts by weight of raw material rubber including 30 to 60 parts by weight of natural rubber and 40 to 70 parts by weight of butadiene rubber; 40 to 70 parts by weight of carbon black; 3 to 10 parts by weight of a novolac resin; and 0.2 to 2 parts by weight of a methylene donor, and a tire produced using the rubber composition. The sidewall insert rubber composition for run-flat tire has excellent processability in an unvulcanized state, and produces a tire having excellent resistance to heat generation, resistance to fatigue and resistance to cracking, and having excellent run-flat performance and excellent low fuel consumption performance.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 18, 2015
    Inventors: Ji Eun CHOI, Sung Hee PARK
  • Publication number: 20140171577
    Abstract: Provided are a rubber composition for tire tread including 100 parts by weight of a raw material rubber that includes 20 parts by 80 parts by weight of a first solution polymerized styrene-butadiene rubber (SBR1) having a styrene content of 15% to 25% by weight and a vinyl content in the butadiene of 60% to 65% by weight and produced by a batch method; and 60 parts to 90 parts by weight of a silica having a specific surface area measured by nitrogen adsorption of 155 m2/g to 185 m2/g and a CTAB value of 150 m2/g to 170 m2/g, and a tire producing using the rubber composition. The rubber composition for tire tread has excellent processability in an unvulcanized state, and can improve all of the braking performance on wet road surfaces, the braking performance on icy road surfaces, and the low fuel consumption performance.
    Type: Application
    Filed: December 11, 2013
    Publication date: June 19, 2014
    Applicant: HANKOOK TIRE CO., LTD.
    Inventors: Ji Eun CHOI, Ho Youn KANG
  • Patent number: 8497797
    Abstract: Provided are a two-dimensional array antenna and a device for detecting an internal object using the same. The device includes a plurality of unit antennas in a two-dimensional array of m columns and n rows on a board (where m and n are integers greater than 1), a first switch selecting one or more transmitting antenna to radiate a pulse signal onto an internal object in a structure from among the unit antennas; a second switch selecting one or more receiving antenna to collect a signal reflected from the internal object from among the unit antennas, and a transceiving analysis module analyzing information about the position and shape of the internal object.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: July 30, 2013
    Assignee: Electronics and Telecomunication Research Institute
    Inventors: Dae Heon Lee, Sung Hyun Kim, Sang Woo Cho, Ji Eun Choi
  • Publication number: 20110227777
    Abstract: Provided are a two-dimensional array antenna and a device for detecting an internal object using the same. The device includes a plurality of unit antennas in a two-dimensional array of m columns and n rows on a board (where m and n are integers greater than 1), a first switch selecting one or more transmitting antenna to radiate a pulse signal onto an internal object in a structure from among the unit antennas; a second switch selecting one or more receiving antenna to collect a signal reflected from the internal object from among the unit antennas, and a transceiving analysis module analyzing information about the position and shape of the internal object.
    Type: Application
    Filed: September 9, 2010
    Publication date: September 22, 2011
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Dae Heon LEE, Sung Hyun KIM, Sang Woo CHO, Ji Eun CHOI