Patents by Inventor Jin Kyu Choi

Jin Kyu 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: 20210086114
    Abstract: A strainer for a fuel pump according to the present invention includes: a communicating pipe including a flow path formed to communicate with a fuel inlet of the fuel pump; a filter including an internal space in which a fuel flows and coupled to the communicating pipe so that the internal space communicates with the communicating pipe; and a rib disposed in the filter and coupled to the communicating pipe, in which the filter includes a first filtering portion extending in a length direction with respect to the communicating pipe, a connecting portion extending in a width direction at an edge of the first filtering portion, and a second filtering portion extending in the length direction at the connecting portion and spaced apart from the first filtering portion in the width direction. Therefore, the strainer may have a relatively large filtering area and a small size.
    Type: Application
    Filed: September 16, 2020
    Publication date: March 25, 2021
    Inventors: Joon Seup KIM, Yong Hwan CHOI, Ku Sung KWON, Jong Hyuk YOON, Jin Kyu CHOI, Jeong Sik KIM, Dong Heon MO
  • Publication number: 20210023304
    Abstract: An electrohydraulic microjet drug delivery device includes: a discharge body provided with a power supply unit in which electric energy is stored; and a medicinal fluid delivery body detachably attached to the discharge body, the medicinal fluid delivery body including a pressure generation unit configured to store a pressure generation liquid, a medicinal fluid storage unit configured to store a medicinal fluid, an elastic separation membrane installed between the pressure generation unit and the medicinal fluid storage unit and configured to separate the pressure generation liquid and the medicinal fluid, a discharger installed inside the pressure generation unit so as to be submerged in the pressure generation liquid and configured to generate a spark using the electric energy stored in the power supply unit, and a nozzle kept in communication with the medicinal fluid storage unit, wherein when the spark is generated in the discharger, a part of the pressure generation liquid is vaporized and expanded to d
    Type: Application
    Filed: April 4, 2019
    Publication date: January 28, 2021
    Inventors: Seok Soon LEE, Jin Kyu CHOI, Han Bin KANG, Seung Min TAK, In Seok BAEK
  • Publication number: 20200269865
    Abstract: Provided are a method of recognizing an emotion of a driver and an apparatus using the same. The method includes receiving emotion recognition information including at least one of vehicle state information and driver emotion state information, determining whether a dominant emotion state exists among one or more emotion states possessed by the driver on the basis of the emotion recognition information and an emotion recognition model, and performing a reaction inducing interaction with respect to the driver determined on the basis of the determined dominant emotion state together with the driver when the dominant emotion state of the driver is determined to exist.
    Type: Application
    Filed: February 13, 2020
    Publication date: August 27, 2020
    Inventors: Chang Rak YOON, Young Jin KWON, Kyong Ho KIM, Do Hyun KIM, Whui KIM, Kyong Hee LEE, Byung Tae JANG, Ju Il JEON, Jin Kyu CHOI, Hyun Kyun CHOI, Yoon Sook HWANG
  • Publication number: 20190135303
    Abstract: A digital cockpit system communicates with a cloud server and outputs an output result of a vehicle's internal system according to a human-machine interface (HMI) output policy optimized for a personal driving tendency of a personal driver by using a driver-customized parameter received from the cloud server.
    Type: Application
    Filed: November 6, 2018
    Publication date: May 9, 2019
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Whui KIM, Jin Kyu CHOI, Sung Woong SHIN, Hyun Kyun CHOI
  • Patent number: 10279076
    Abstract: The present invention relates to a parenteral composition for maintaining the efficacy of a filler for a long time, containing a collagen hydrolysate as an active ingredient. The composition, according to the present invention, can maintain the efficacy of a hyaluronic acid filler for a longer time, thereby enabling the effect thereof to be maintained irrespective of a smaller frequency of filler operations, and thus there is an advantage of also reducing skin irritation. In addition, there is an advantage of enabling an immediate effect since an administration method is simple as a parenteral administration and enables direct penetration into the skin.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: May 7, 2019
    Assignee: AMOREPACIFIC CORPORATION
    Inventors: Hyun Jung Shin, Jin Kyu Choi, Byung Gyu Kim, Dae Bang Seo
  • Patent number: 9956354
    Abstract: Disclosed is a nozzle device and a minimally invasive injection device, and the nozzle device for a minimally invasive injection device according to an exemplary embodiment includes an outlet to generate a microjet of a liquid, and an injection part of a micro-scale size connected to the outlet and adapted to be inserted into a skin tissue to a preset depth.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: May 1, 2018
    Assignee: AMOREPACIFIC CORPORATION
    Inventors: Jin Woo Park, Min Kyoung Kwon, Ji Hye Jang, Joon Ho Bae, Jin Kyu Choi
  • Publication number: 20170136146
    Abstract: The present invention relates to a parenteral composition for maintaining the efficacy of a filler for a long time, containing a collagen hydrolysate as an active ingredient. The composition, according to the present invention, can maintain the efficacy of a hyaluronic acid filler for a longer time, thereby enabling the effect thereof to be maintained irrespective of a smaller frequency of filler operations, and thus there is an advantage of also reducing skin irritation. In addition, there is an advantage of enabling an immediate effect since an administration method is simple as a parenteral administration and enables direct penetration into the skin.
    Type: Application
    Filed: March 10, 2015
    Publication date: May 18, 2017
    Inventors: Hyun Jung SHIN, Jin Kyu CHOI, Byung Gyu KIM, Dae Bang SEO
  • Patent number: 9598362
    Abstract: The disclosed compounds have antiviral activity against C-type virus, an optical isomer thereof, a pharmaceutically acceptable salt thereof, a method for preparing the same, and a pharmaceutical composition containing the same as an active ingredient for preventing or treating liver disease caused by hepatitis C virus. The benzidine derivative according to the present invention has excellent antiviral activity against hepatitis C virus and exhibits excellent medicinal activity in the living body, and thus the pharmaceutical composition containing the same as an active ingredient can be useful as a pharmaceutical composition for preventing or treating liver disease, such as acute hepatitis C, chronic hepatitis C, cirrhosis, or hepatocellular carcinoma, caused by C-type virus.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: March 21, 2017
    Assignees: Seoul National University R&DB Foundation, POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Sung Key Jang, Byeong Moon Kim, Il Hak Bae, Jin Kyu Choi, Sun Ju Keum, Seung Gi Lee, Hee Sun Kim
  • Patent number: 9474706
    Abstract: The present invention relates to a composition for maintaining efficacy of a filler for a long period of time by containing collagen as an active ingredient. The composition according to the present invention is useful since the composition can promote the synthesis of hyaluronic acid and inhibit activity of hyaluronidase, thereby maintaining the efficacy of a hyaluronic acid filler for a longer period of time. Therefore, even with less number of times of filler injection, the efficacy of the filler can be maintained and skin irritation can be also reduced.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: October 25, 2016
    Assignee: AMOREPACIFIC CORPORATION
    Inventors: Hyun Jung Shin, Jin Kyu Choi, Byung Gyu Kim, Dae Bang Seo, Sang Jun Lee
  • Patent number: 9385802
    Abstract: A multi-hop relay maritime communication apparatus installed in a ship is disclosed. The maritime communication apparatus includes a first access module configured to comprise a plurality of directional antennas integrally formed; a second access module configured to comprise an omni-directional antenna; and a bridge configured to be connected to the first access module and the second access module via an Ethernet interface.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: July 5, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Dae Seung Yoo, Hyung Joo Kim, Seung Yong Lee, Kyong Hee Lee, Jin Kyu Choi, Gwang Ja Jin, Byung Tae Jang, Dong Sun Lim
  • Publication number: 20160119051
    Abstract: A multi-hop relay maritime communication apparatus installed in a ship is disclosed. The maritime communication apparatus includes a first access module configured to comprise a plurality of directional antennas integrally formed; a second access module configured to comprise an omni-directional antenna; and a bridge configured to be connected to the first access module and the second access module via an Ethernet interface.
    Type: Application
    Filed: November 13, 2014
    Publication date: April 28, 2016
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: DAE SEUNG YOO, HYUNG JOO KIM, SEUNG YONG LEE, KYONG HEE LEE, JIN KYU CHOI, GWANG JA JIN, BYUNG TAE JANG, DONG SUN LIM
  • Patent number: 9319125
    Abstract: The present invention relates to an apparatus and method of performing wireless communication using multiple directional antennas. The transportation means according to the present invention includes at least two communication devices, wherein one of the at least two communication devices, communication device A, includes a directional antenna group 1, and the other communication device, communication device B, includes a directional antenna group 2, and wherein the communication device A performs directional antenna selection control of the directional antenna group 1 included in the communication device A depending on whether the communication device B is connected with a network. According to the present invention, one of the communication devices gains access to a satellite station, a base station, or other ships, at least one antenna of another communication device may be used to relay wireless communication and may play a role as a base station or an AP.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: April 19, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jin Kyu Choi, Seung Yong Lee, Gwang Ja Jin, Dae Seung Yoo, Hyung Joo Kim
  • Patent number: 9277476
    Abstract: Disclosed herein are a maritime communication apparatus and method. The maritime communication apparatus includes a land-based network communication unit, a maritime network communication unit, and a communication control unit. The land-based network communication unit communicates with a land-based communication network. The maritime network communication unit communicates with a maritime communication network. The communication control unit links the communication of the land-based network communication unit with the communication of the maritime network communication unit in accordance with a destination address of data provided by any one of the land-based network communication unit and the maritime network communication unit.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: March 1, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Dae-Seung Yoo, Hyung-Joo Kim, Seung-Yong Lee, Jin-Kyu Choi, Jong-Min Park, Gwang-Ja Jin
  • Publication number: 20160031810
    Abstract: The disclosed compounds have antiviral activity against C-type virus, an optical isomer thereof, a pharmaceutically acceptable salt thereof, a method for preparing the same, and a pharmaceutical composition containing the same as an active ingredient for preventing or treating liver disease caused by hepatitis C virus. The benzidine derivative according to the present invention has excellent antiviral activity against hepatitis C virus and exhibits excellent medicinal activity in the living body, and thus the pharmaceutical composition containing the same as an active ingredient can be useful as a pharmaceutical composition for preventing or treating liver disease, such as acute hepatitis C, chronic hepatitis C, cirrhosis, or hepatocellular carcinoma, caused by C-type virus.
    Type: Application
    Filed: October 15, 2015
    Publication date: February 4, 2016
    Applicants: POSTECH ACADEMY-INDUSTRY FOUNDATION, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Sung Key Jang, Byeong Moon Kim, IL Hak Bae, Jin Kyu Choi, Sun Ju Keum, Seung Gi Lee, Hee Sun Kim
  • Publication number: 20160000683
    Abstract: The present invention relates to a composition for maintaining efficacy of a filler for a long period of time by containing collagen as an active ingredient. The composition according to the present invention is useful since the composition can promote the synthesis of hyaluronic acid and inhibit activity of hyaluronidase, thereby maintaining the efficacy of a hyaluronic acid filler for a longer period of time. Therefore, even with less number of times of filler injection, the efficacy of the filler can be maintained and skin irritation can be also reduced.
    Type: Application
    Filed: February 27, 2014
    Publication date: January 7, 2016
    Inventors: Hyun Jung SHIN, Jin Kyu CHOI, Byung Gyu KIM, Dae Bang SEO, Sang Jun LEE
  • Patent number: 9229057
    Abstract: A semiconductor test system includes a user device configured to operate a reference device in accordance with an interface signal based on a timing signal having a variable operating frequency, a pattern synthesis apparatus configured to measure an interval between adjacent edges of the timing signal transmitted from the user device, and extract a logic value of the interface signal in accordance with the timing signal so as to generate test pattern data, and a test device configured to receive the test pattern data, reconstruct the timing signal based on the measured interval, generate a test driving signal such that the logic value is extracted from a device under test (DUT) based on the reconstructed timing signal, and apply the test driving signal to the DUT so as to determine an operating state of the DUT.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: January 5, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Yeol Kim, In-su Yang, Min Sung Kim, Jae Hyun Baek, Jin-Kyu Choi, Ho Sun Yoo
  • Patent number: 9127215
    Abstract: Provided is a method for reducing the amount of organic acids in a hydrocarbon oil fraction by hydrogenating the organic acids in the hydrocarbon oil fraction under mild conditions. Provided is a new method able to overcome the problem of organic-acid-induced corrosion during the process of distillation, by using hydrogen or a hydrogen-containing mixed gas and a hydrogenation catalyst to subject the organic acids in the hydrocarbon oil fraction to hydrogenation at an appropriate temperature and pressure, thereby converting the same to hydrocarbons and so reducing the amount of organic acids in the hydrocarbon oil fraction.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: September 8, 2015
    Assignees: SK INNOVATION CO., LTD., SK ENERGY CO., LTD.
    Inventors: Jin Kyu Choi, Cheol Woo Park, Tae Won Uhm, Il Yong Jeong, Ha Na Song, Do Woan Kim, Hee Jung Jeon, Gyung Rok Kim, Cheol Joong Kim, Do Hyoun Kim, Chang Woo Joo
  • Publication number: 20150157809
    Abstract: Disclosed is a nozzle device and a minimally invasive injection device, and the nozzle device for a minimally invasive injection device according to an exemplary embodiment includes an outlet to generate a microjet of a liquid, and an injection part of a micro-scale size connected to the outlet and adapted to be inserted into a skin tissue to a preset depth.
    Type: Application
    Filed: July 12, 2013
    Publication date: June 11, 2015
    Applicant: AMOREPACIFIC CORPORATION
    Inventors: Jin Woo Park, Min Kyoung Kwon, Ji Hye Jang, Joon Ho Bae, Jin Kyu Choi
  • Patent number: 8989305
    Abstract: Disclosed herein are a method and apparatus for generating multiband Radio Frequency (RF) signals in maritime wireless communication. The apparatus includes a baseband conversion unit, a phase compensation unit, a Direct Current (DC) offset compensation unit, and an RF transmission unit. The baseband conversion unit converts RF signals corresponding to a baseband modulation signal having a negative frequency and a baseband modulation signal having a positive frequency into baseband signals, respectively. The phase compensation unit eliminates the images of multiband signals so as to correspond to the baseband signals. The DC offset compensation unit compensates the baseband modulation signals for DC offsets using the multiband signals from which the images have been eliminated. The RF transmission unit generates the RF signals using the signals which have been compensated for the DC offsets, and sends the RF signals via an antenna.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: March 24, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin-Kyu Choi, Jong-Min Park, Dae-Seung Yoo, Gwang-Ja Jin, Byung-Tae Jang, Dong-Sun Lim
  • Patent number: 8975264
    Abstract: Disclosed is a novel compound acting as a cannabinoid receptor 1 inhibitor, the compound being a pyrazolo[1,5-a]pyrimidine derivative, a prodrug thereof, an isomer thereof, a pharmaceutically acceptable salt thereof, a hydrate thereof or a solvate thereof. The novel compound or the like is useful for preventing or treating diseases mediated by the cannabinoid receptor-1.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: March 10, 2015
    Assignee: Amorepacific Corporation
    Inventors: Song Seok Shin, Yong Deog Hong, Kyoung Hee Byoun, Mi Young Park, Jin Kyu Choi, Yang Hui Park, Il Hong Bae, Yung Hyup Joo, Kyung Min Lim, Young Ho Park