Patents by Inventor Nam Jin Choi

Nam Jin 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).

  • Patent number: 10976100
    Abstract: A refrigerator includes a body, a storage compartment formed inside the body, a plurality of drawers provided inside the storage compartment, a door slidably provided to open and close the storage compartment and a selective drawing device configured to select a first drawer from among the plurality of drawers and to draw the first drawer together with the door. The desired drawer can be pulled out together with the door at the time of pulling out the door, so that the usability can be improved.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: April 13, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun Won Seo, Jea Won Lee, Yong Soo Kyong, Kyung Ho Hwang, Jae Bok Lee, Myoung Jin Jang, Nam Gu Choi
  • Publication number: 20210072791
    Abstract: A display device is provided.
    Type: Application
    Filed: November 16, 2020
    Publication date: March 11, 2021
    Inventors: Jae Young YU, Yong Gi KO, Bon Joo KOO, Yun Ha KIM, Jae Chun PARK, Nam Seok BAIK, Mikiya ITAKURA, Hyoung Jin LEE, Dae Guen CHOI, Sung Chul CHOI
  • Patent number: 10838457
    Abstract: A display device is provided.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: November 17, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Young Yu, Yong Gi Ko, Bon Joo Koo, Yun Ha Kim, Jae Chun Park, Nam Seok Baik, Mikiya Itakura, Hyoung Jin Lee, Dae Guen Choi, Sung Chul Choi
  • Publication number: 20200343452
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Application
    Filed: December 24, 2018
    Publication date: October 29, 2020
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Nam-Jin LEE, Min-Ji PARK, Won-Jang JEONG, Jin-Seok CHOI, Dae-Hyuk CHOI, Joo-Dong LEE
  • Publication number: 20200321845
    Abstract: A vibration generating apparatus includes a bracket coupled to a rectangular case to form an inner space, a stator including a circuit board coupled to an upper surface of the bracket and a coil connected to the circuit board, a vibrator including a permanent magnet arranged on an exterior of the coil and a weighted body coupled to an outer circumferential surface of the permanent magnet, and an elastic member connecting the stator and the vibrator and elastically supporting the vibrator. The weighted body is polyhedral, and the vibrator moves up-and-down.
    Type: Application
    Filed: August 4, 2017
    Publication date: October 8, 2020
    Applicant: JAHWA ELECTRONICS CO., LTD.
    Inventors: Nam Jin CHOI, Kyung Hoon JO, Soon Koo SHIM, Young Bin CHONG, Chun CHOI, Won Gook LEE, Min Goo LEE
  • Publication number: 20200316354
    Abstract: Disclosed is an energy self-sufficient real time bio-signal monitoring and nutrient and/or drug delivery system based on salinity gradient power generation. The energy self-sufficient real time bio-signal monitoring and/or nutrient delivery system based on salinity gradient power generation includes: an electricity generation and nutrient and/or drug delivery module including a reverse electrodialysis device which generates electricity by using a nutrient and/or drug solution and discharge a diluted nutrient solution; and a bio-signal measuring unit inserted into the electricity generation and nutrient and/or drug delivery module and configured to receive electricity from the electricity generation and nutrient and/or drug delivery module and measure a bio-signal.
    Type: Application
    Filed: February 2, 2018
    Publication date: October 8, 2020
    Inventors: Nam-jo JEONG, Ji Yeon CHOI, Han-Ki KIM, Seung Cheol YANG, Kyo Sik HWANG, Ji Hyung HAN, Joo-Youn NAM, Eun-Jin JWA, Soon-Chul PARK, Yong-Seog SEO, Moon-Seok JANG
  • Publication number: 20200307153
    Abstract: The present specification provides a carbon fiber reinforced composite structure comprising: a plurality of carbon fiber reinforced sheets, which are laminated; and a stitch member penetrating one or more carbon fiber reinforced sheets, in which the carbon fiber reinforced sheet includes a plurality of reinforcing carbon fibers arranged in one direction. The carbon fiber reinforced composite structure shows excellent thermal conductivity in a thickness direction.
    Type: Application
    Filed: February 27, 2020
    Publication date: October 1, 2020
    Inventors: Jaesang YU, Hyunkee HONG, Kwak Jin BAE, Hana JUNG, Hoi-Kil CHOI, Yuna OH, Dong Won LEE, Cheol-Min YANG, Min Wook LEE, Minkook KIM, Wonjin NA, Nam Ho YOU
  • Publication number: 20200225699
    Abstract: A display device is provided.
    Type: Application
    Filed: January 15, 2020
    Publication date: July 16, 2020
    Inventors: Jae Young YU, Yong Gi KO, Bon Joo KOO, Yun Ha KIM, Jae Chun PARK, Nam Seok BAIK, Mikiya ITAKURA, Hyoung Jin LEE, Dae Guen CHOI, Sung Chul CHOI
  • Publication number: 20200173713
    Abstract: A refrigerator includes a body, a storage compartment formed inside the body, a plurality of drawers provided inside the storage compartment, a door slidably provided to open and close the storage compartment and a selective drawing device configured to select a first drawer from among the plurality of drawers and to draw the first drawer together with the door. The desired drawer can be pulled out together with the door at the time of pulling out the door, so that the usability can be improved.
    Type: Application
    Filed: February 11, 2020
    Publication date: June 4, 2020
    Inventors: Jun Won SEO, Jea Won LEE, Yong Soo KYONG, Kyung Ho HWANG, Jae Bok LEE, Myoung Jin JANG, Nam Gu CHOI
  • Patent number: 10637340
    Abstract: A linear vibration generating device. The linear vibration generating device includes a vibrator including an annular magnet and a weight surrounding the magnet; a stator including a coil disposed at a center of the magnet and a yoke surrounding the coil; an elastic member disposed between the vibrator and the stator to elastically support the vibrator; and an anti-tilting unit coaxially coupled to a top of the yoke in a predetermined height. The anti-tilting unit is a non-magnetic body with a cylindrical shape having an outer diameter equal to or greater than a diameter of an outermost portion of the yoke and smaller than an inner diameter of the magnet.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: April 28, 2020
    Assignee: JAHWA electronics Co., Ltd.
    Inventors: Soon Koo Shim, Young Bin Chong, Nam Jin Choi
  • Patent number: 10591204
    Abstract: A refrigerator includes a body, a storage compartment formed inside the body, a plurality of drawers provided inside the storage compartment, a door slidably provided to open and close the storage compartment and a selective drawing device configured to select a first drawer from among the plurality of drawers and to draw the first drawer together with the door. The desired drawer can be pulled out together with the door at the time of pulling out the door, so that the usability can be improved.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: March 17, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun Won Seo, Jea Won Lee, Yong Soo Kyong, Kyung Ho Hwang, Jae Bok Lee, Myoung Jin Jang, Nam Gu Choi
  • Publication number: 20200033280
    Abstract: A transformer hydrogen gas monitoring system according to an embodiment of the present invention may comprise: a sensor module, which is disposed to allow at least a part thereof to meet hydrogen gas in a transformer and measures a resistance value of a member having a variable resistance value according to a hydrogen concentration in the transformer; and a multi-task module for receiving a sensing result of the sensor module, generating hydrogen concentration information corresponding to resistance value information included in the sensing result, and remotely transmitting information corresponding to the generated hydrogen concentration information.
    Type: Application
    Filed: August 18, 2017
    Publication date: January 30, 2020
    Inventors: Seok-Kon KIM, Jeong-Yeol HAN, You-Jin LEE, Tea-Kyun KIM, Yong-Ho AN, Byung-Tae JANG, Jong-Kee CHOI, Nam-Ho LEE, Nam-Dae KIM
  • Patent number: 10547731
    Abstract: A method and electronic device are disclosed herein. The electronic device includes a display, a communication unit, a processor and a memory storing instructions. The process executes the instructions to implement the method, including establishing wireless communication with one or more IoT devices, displaying a user interface for managing IoT devices, receiving a user input selecting a group of IoT devices, transmitting first information including user account data to an external server, transmitting second information to another device, the first information also indicating a selected group of IoT devices, and the second information causing the other device to communicatively connect with the first external server.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: January 28, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nam Jin Kim, Tae Jun Kim, Hae Na Kim, Yoe Chan Song, Jung Hwan Song, Sung Yeon Woo, Joon Hwan Lee, Pyo Je Cho, Han Jib Kim, Gyu Cheol Choi, Bo Kun Choi
  • Patent number: 10438800
    Abstract: Semiconductor devices and methods for fabricating the same are provided. A semiconductor device may include a substrate including first and second regions, a first interface film disposed on the substrate in the first region, a second interface film disposed on the substrate in the second region, a dielectric film disposed on the first and second interface films, a first metal film disposed on the dielectric film in the first region, and a second metal film disposed on the dielectric film in the second region. The first and second interface films may comprise an oxide of the substrate, the first and second metal films may comprise different materials, and the first and second interface films may have different thicknesses. Channels may be provided in the first and second regions, and the channels may be fin-shaped or wire-shaped. The metal films may have different oxygen content.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: October 8, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon Tae Hwang, Moon Kyun Song, Nam Gyu Cho, Kyu Min Lee, Soo Jung Choi, Yong Ho Ha, Sang Jin Hyun
  • Patent number: 10389219
    Abstract: A vibration actuator includes a bracket coupled to a case to form an inner space; a stator having a circuit board coupled to an upper surface of the bracket, a coil connected to the circuit board, and a yoke provided in the coil; a vibrator having a permanent magnet disposed at an outer side of the coil and a weight coupled to an outer circumference of the permanent magnet; an elastic member configured to connect the stator and the vibrator and elastically support the vibrator; and a non-magnetic damper provided between the weight and the elastic member.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: August 20, 2019
    Assignee: JAHWA ELECTRONICS CO., LTD.
    Inventors: Nam Jin Choi, Kyung Hoon Jo, Soon Koo Shim, Young Bin Chong, Won Gook Lee, Min Goo Lee
  • Patent number: 10379935
    Abstract: The present invention relates to to an IEC 61850 information-based agent system for intelligent system management by a digital substation and an operation method therefor. To this end, an operating system-side agent device for sharing switch information, which is used in automatic recovery of a digital substation, between an operating system and an intelligent electronic device (IED) in the digital substation, the device including: a request unit requesting the switch information from an intelligent electronic device-side agent device mounted in the intelligent electronic device (IED); and a communication unit receiving the switch information from the intelligent electronic device-side agent device, the switch information being collected by the intelligent electronic device-side agent device, wherein the operating system-side agent device is provided as a module, and is mounted in the operating system.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: August 13, 2019
    Assignee: Korea Electric Power Corporation
    Inventors: Nam-Ho Lee, Byung-Tae Jang, Yong-Ho An, Jeong-Yeol Han, You-Jin Lee, Jong-Kee Choi, Seok-Kon Kim
  • Patent number: 10325062
    Abstract: The present invention relates to a method and device for generating an engineering topology of a digital substation. The method may include: generating, by a single line diagram generation module, a single line diagram of the digital substation based on input information regarding a plurality of substation component devices and connection relations therebetween; converting, by a topology conversion module, the single line diagram of the digital substation into an engineering topology conforming to international standards by use of conversion conditions stored in a topology component management module; verifying, by a topology verification module, whether the engineering topology is suitable for the digital substation based on the international standards; and generating, by an international standard file generation module, a single line diagram engineering file of the digital substation as a system specification description (SSS) by use of the verified engineering topology.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: June 18, 2019
    Assignee: KOREA ELECTRIC POWER CORPORATION
    Inventors: Byung Tae Jang, Nam Ho Lee, Yong Ho An, Jong Kee Choi, Jeong Yeol Han, You Jin Lee, Eung Bo Shim, Dong Il Lee
  • Patent number: 10307946
    Abstract: A method of making a side step of a vehicle includes a bracket that is mounted to a vehicle body and an insert main body that bears weight of passengers. The bracket and the insert main body are integrally provided by using a CFT material through insert-molding, and an injection molding resin is coupled to all over the insert main body where the bracket is coupled through insert-molding so as to form a main frame of the side step.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: June 4, 2019
    Assignees: Hyundai Motor Company, LG Hausys, Ltd.
    Inventors: Seung Mok Lee, Kwang Jae Choi, Nam Cheol Kim, Seung Ryong Jeong, Sung Jun Hong, Woo Jin Jung, Chun Ho Park
  • Publication number: 20190103796
    Abstract: A linear vibration generating device. The linear vibration generating device includes a vibrator including an annular magnet and a weight surrounding the magnet; a stator including a coil disposed at a center of the magnet and a yoke surrounding the coil; an elastic member disposed between the vibrator and the stator to elastically support the vibrator; and an anti-tilting unit coaxially coupled to a top of the yoke in a predetermined height. The anti-tilting unit is a non-magnetic body with a cylindrical shape having an outer diameter equal to or greater than a diameter of an outermost portion of the yoke and smaller than an inner diameter of the magnet.
    Type: Application
    Filed: February 23, 2018
    Publication date: April 4, 2019
    Applicant: JAHWA electronics Co., Ltd.
    Inventors: Soon Koo SHIM, Young Bin CHONG, Nam Jin CHOI
  • Patent number: 9913364
    Abstract: A printed circuit board includes a pad to receive an electric signal from a controller, a plurality of signal lines connected to the pad to transmit the electric signal received at the pad, and a signal transmission unit connected to the signal lines to transmit the electric signal to a coil. The plurality of signal lines are configured to face each other in at least a partial region and/or disposed in a zigzag form in at least a partial region. If the printed circuit board and a vibration actuator including the printed circuit board are used, it is possible to change a high frequency interference region according to a pattern by changing a pattern of the printed circuit board, and to improve receiving efficiency of an antenna by reducing high frequency noise.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: March 6, 2018
    Assignee: JAHWA ELECTRONICS CO., LTD.
    Inventors: Chun Choi, Soon Koo Shim, Young Bin Chong, Nam Jin Choi, Won Gook Lee, Min Goo Lee, Kyung Hoon Jo