Patents by Inventor Sung Gun Lee

Sung Gun Lee 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: 20220294252
    Abstract: Discussed is a battery management apparatus which includes a battery management system that monitors a state of a battery, and a power receiving device that wirelessly receives power from a power transmitting device, where the battery management system calculates an optimum charging condition for the battery based on data on the state of the battery and power transmission performance of the power transmitting device.
    Type: Application
    Filed: September 7, 2020
    Publication date: September 15, 2022
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Hyun Ki CHO, Sang Hoon LEE, Jae Dong PARK, Keun Wook LEE, Ji Eun KIM, Chan Ha PARK, Sung Gun LEE, Seong Yeol YANG
  • Publication number: 20220295275
    Abstract: The present invention relates to a method of turning on an electric scooter by supplying power to the ECU when the interchangeable battery pack is driven by eliminating the auxiliary battery that always supplies power to the ECU that turns on the start of the electric scooter, providing an interchangeable battery packs using wireless communication type, and using a wireless communication signal received from a smart device as a driving signal of the interchangeable battery pack.
    Type: Application
    Filed: November 30, 2020
    Publication date: September 15, 2022
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Jung Hoon LEE, Yean Sik CHOI, Sung Gun LEE
  • Patent number: 11430617
    Abstract: An example portable electronic device includes a front glass cover; a rear cover; a bezel surrounding a space defined by the front cover and the rear cover, the bezel including a portion including an opening; a display device built in the space; and a plate including a plane parallel to the front cover within the space. The example electronic device includes a key movably inserted in the opening; a support structure mounted on the plate or a portion of the bezel and including a hole through which the key passes; a dome button mounted on the support structure and arranged to face the first surface of the key and the hole so that the key can be pressed; and a waterproof structure including a flexible material.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: August 30, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-Min Choi, Hyuk-Jae Jang, Woong-Chan Kim, Jung-Tae Kim, Dae-Hyeong Park, Sang-Hyun Yi, Jae-Ryang Lee, Jeong-Goo Jeon, Sung-Gun Cho, Sung-Joo Cho, Young-Sik Choi, Soon-Woong Yang, Min-Sung Lee
  • Publication number: 20220271021
    Abstract: A display device and a method of fabricating a display device. The display device includes a substrate including an emission area and a subarea adjacent to the emission area, a bank disposed in the emission area of the substrate, a height difference compensation pattern disposed in the subarea of the substrate, a first electrode and a second electrode that are disposed on the bank, the first electrode and the second electrode being spaced apart from each other, and a light-emitting element disposed in the emission area, between the first electrode and the second electrode.
    Type: Application
    Filed: October 5, 2021
    Publication date: August 25, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Jong Chan LEE, Jeong Hyun LEE, Hyun KIM, Jung Gun NAM, Jang Soon PARK, Jeong Su PARK, Sung Geun BAE, Myeong Hun SONG, Da Sol JEONG, Won Hyeong HEO
  • Publication number: 20220247187
    Abstract: A battery pack power cutting off apparatus is discussed, and includes a power cutoff configured to block a line through which a charge/discharge current of a battery module flows, a communicator configured to receive an operation signal of the power cutoff from an external device, and a switching configured to control to apply power to a heater resistor included in the power cutoff based on an operation signal of the power cutoff, wherein when power is applied to the heater resistor and generates heat, the power cutoff operates to block the current flowing through the line.
    Type: Application
    Filed: August 7, 2020
    Publication date: August 4, 2022
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventor: Sung Gun LEE
  • Publication number: 20220228179
    Abstract: Provided are a microorganism producing an L-amino acid or a precursor thereof, and a method of producing an L-amino acid or a precursor thereof using the microorganism.
    Type: Application
    Filed: April 29, 2020
    Publication date: July 21, 2022
    Inventors: Hye Ryun YOO, So-Yeon KIM, Hye Min PARK, Sung Gun LEE, Jin Nam LEE, Hyun Ah KIM, Sol CHOI, Lan HUH
  • Publication number: 20220042000
    Abstract: The present disclosure relates to a polypeptide having an acyltransferase activity or a microorganism including the same; a composition for preparing N-acetyl-L-methionine, the composition including the polypeptide or microorganism; and a method of preparing N-acetyl-L-methionine using the polypeptide or microorganism. Further, the present disclosure relates to a polynucleotide encoding the polypeptide and an expression vector including the polynucleotide. Since the microorganism including a novel acyltransferase according to the present disclosure has enhanced acyltransferase activity, this microorganism can be efficiently used for producing N-acetyl-L-methionine by acetylating L-methionine.
    Type: Application
    Filed: October 27, 2021
    Publication date: February 10, 2022
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: So Yeon HONG, Jinseung PARK, Hye Min PARK, Su Jin CHOI, Jun Ok MOON, Sung Gun LEE, Jinwoo JEON
  • Publication number: 20220003823
    Abstract: An insulation resistance measurement apparatus includes a first resistance unit having one end connected to an anode of a battery and the other end connected to ground, and variably having a first resistance value or a second resistance value greater than the first resistance; a second resistance unit having one end connected to a cathode of the battery and the other end connected to ground, and variably having a third resistance value or a fourth resistance value greater than the third resistance value according to control; a voltage measurement unit configured to measure a voltage across the first or second resistance unit; and an insulation resistance calculation unit configured to calculate a first insulation resistance value between the anode of the battery and ground and a second insulation resistance value between the cathode of the battery and ground by using the first to fourth resistance values and the measured voltage.
    Type: Application
    Filed: December 18, 2019
    Publication date: January 6, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventor: Sung Gun Lee
  • Publication number: 20210271679
    Abstract: According to some embodiments, a system to manage a query plan cache for a Database Management System (“DBMS”) includes a DBMS query plan cache data store. The DBMS query plan cache data store may contain, for example, electronic records representing a plurality of query plans each associated with a set of instructions created in response to a query previously submitted by a user. A DBMS query plan cache management platform may then calculate a utility score for each query plan in the DBMS query plan cache data store. At least one query plan may be evicted from the DBMS query plan cache data store based on the calculated utility score, wherein the evicting is not based on a size of the DBMS query plan cache.
    Type: Application
    Filed: May 17, 2021
    Publication date: September 2, 2021
    Inventors: Sung Gun Lee, Sanghee Lee, Hyung Jo Yoon, Boyeong Jeon
  • Patent number: 11036740
    Abstract: According to some embodiments, a system to manage a query plan cache for a Database Management System (“DBMS”) includes a DBMS query plan cache data store. The DBMS query plan cache data store may contain, for example, electronic records representing a plurality of query plans each associated with a set of instructions created in response to a query previously submitted by a user. A DBMS query plan cache management platform may then calculate a utility score for each query plan in the DBMS query plan cache data store. At least one query plan may be evicted from the DBMS query plan cache data store based on the calculated utility score, wherein the evicting is not based on a size of the DBMS query plan cache.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: June 15, 2021
    Assignee: SAP SE
    Inventors: Sung Gun Lee, Sanghee Lee, Hyung Jo Yoon, Boyeong Jeong
  • Publication number: 20210073232
    Abstract: According to some embodiments, a system to manage a query plan cache for a Database Management System (“DBMS”) includes a DBMS query plan cache data store. The DBMS query plan cache data store may contain, for example, electronic records representing a plurality of query plans each associated with a set of instructions created in response to a query previously submitted by a user. A DBMS query plan cache management platform may then calculate a utility score for each query plan in the DBMS query plan cache data store. At least one query plan may be evicted from the DBMS query plan cache data store based on the calculated utility score, wherein the evicting is not based on a size of the DBMS query plan cache.
    Type: Application
    Filed: September 11, 2019
    Publication date: March 11, 2021
    Inventors: Sung Gun Lee, Sanghee Lee, Hyung Jo Yoon, Boyeong Jeong
  • Patent number: 10801047
    Abstract: The present disclosure relates to a putrescine-producing microorganism of the genus Corynebacterium, and a method of producing putrescine using the same.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: October 13, 2020
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Kyoung Min Lee, Sung Gun Lee, Seon Hye Kim, Kyungsu Na, Hong Xian Li, Hyun-jung Bae, Young Lyeol Yang, Hye Won Um, Hyo Hyoung Lee
  • Publication number: 20200224227
    Abstract: The present disclosure relates to a putrescine-producing microorganism of the genus Corynebacterium, and a method of producing putrescine using the same.
    Type: Application
    Filed: July 19, 2018
    Publication date: July 16, 2020
    Inventors: Kyoung Min LEE, Sung Gun LEE, Seon Hye KIM, Kyungsu NA, Hong Xian LI, Hyun-jung BAE, Young Lyeol YANG, Hye Won UM, Hyo Hyoung LEE
  • Patent number: 10537996
    Abstract: Systems and methods for controlling a swarm of mobile robots are disclosed. In one aspect, the robots cover a domain of interest. Each robot receives a density function indicative of at least one area of importance in the domain of interest, and calculates a velocity vector based on the density function and a displace vector relative to an adjacent robot. Each robot moves to the area of importance according to its velocity vector. In some aspects, the robots together perform a sequence of formations. Each robot mimics a trajectory as part of its performance by switching among a plurality of motion modes. Each robot determines its next motion mode based on a displacement vector relative to an adjacent robot.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: January 21, 2020
    Assignee: Georgia Tech Research Corporation
    Inventors: Magnus Egerstedt, Sung Gun Lee, Yancy Diaz-Mercado, Smriti Chopra
  • Publication number: 20190264215
    Abstract: The present disclosure relates to a polypeptide having an acyltransferase activity or a microorganism including the same; a composition for preparing N-acetyl-L-methionine, the composition including the polypeptide or microorganism; and a method of preparing N-acetyl-L-methionine using the polypeptide or microorganism. Further, the present disclosure relates to a polynucleotide encoding the polypeptide and an expression vector including the polynucleotide. Since the microorganism including a novel acyltransferase according to the present disclosure has enhanced acyltransferase activity, this microorganism can be efficiently used for producing N-acetyl-L-methionine by acetylating L-methionine.
    Type: Application
    Filed: July 19, 2017
    Publication date: August 29, 2019
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: So Yeon HONG, Jinseung PARK, Hye Min PARK, Su Jin CHOI, Jun Ok MOON, Sung Gun LEE, Jinwoo JEON
  • Patent number: 10266858
    Abstract: The present invention relates to a microorganism of the genus Corynebacterium, which has an enhanced activity of aspartate ammonia-lyase and/or aspartate aminotransferase, and thus has an enhanced ability to produce L-arginine, and to a method of producing L-arginine using the microorganism of the genus Corynebacterium.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: April 23, 2019
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Hyun Ae Bae, Min Gyeong Kang, Han Hyoung Lee, Hye Won Kim, Sung Gun Lee
  • Patent number: 10189499
    Abstract: The present invention relates to a steering control apparatus comprising: a sensing unit configured to sense at least one among a vehicle speed, a steering angle, first lateral acceleration, and a steering angle speed; an estimation unit configured to estimate second lateral acceleration on the basis of the vehicle speed and the steering angle; and a controller configured to control a steering device so that a steering torque increases, on the basis of a slip gradient which indicates a difference between the first lateral acceleration and the second lateral acceleration, wherein the controlling of the steering device is released when the steering angle speed is inverted.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: January 29, 2019
    Assignee: MANDO CORPORATION
    Inventor: Sung Gun Lee
  • Patent number: 10183697
    Abstract: The present embodiments relate to a system and a method for controlling autonomous steering according to a required torque from a driver assistance system, in which when outputting a driving current by the required torque, a compensation current is output by applying gains according to a car speed, steering angle, steering angle speed, and required torque to a variation in torque by the rotation of a steering wheel, thereby achieving autonomous steering with the smooth rotation of the steering wheel without intermittent interruptions even in high friction between the car and the road depending on road conditions.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: January 22, 2019
    Assignee: MANDO CORPORATION
    Inventor: Sung Gun Lee
  • Publication number: 20170144705
    Abstract: The present embodiments relate to a system and a method for controlling autonomous steering according to a required torque from a driver assistance system, in which when outputting a driving current by the required torque, a compensation current is output by applying gains according to a car speed, steering angle, steering angle speed, and required torque to a variation in torque by the rotation of a steering wheel, thereby achieving autonomous steering with the smooth rotation of the steering wheel without intermittent interruptions even in high friction between the car and the road depending on road conditions.
    Type: Application
    Filed: November 16, 2016
    Publication date: May 25, 2017
    Inventor: Sung Gun LEE
  • Publication number: 20170072565
    Abstract: Systems and methods for controlling a swarm of mobile robots are disclosed. In one aspect, the robots cover a domain main of interest. Each robot receives a density function indicative of at least one area of importance in the domain of interest, and calculates a velocity vector based on the density function and a displace vector relative to an adjacent robot. Each robot moves to the area of importance according to its velocity vector. In some aspects, the robots together perform a sequence of formations. Each robot mimics a trajectory as part of its performance by switching among a plurality of motion modes. Each robot determines its next motion mode based on a displacement vector relative to an adjacent robot.
    Type: Application
    Filed: May 5, 2015
    Publication date: March 16, 2017
    Inventors: Magnus Egerstedt, Sung Gun Lee, Yancy Diaz-Mercado, Smriti Chopra