Patents by Inventor Sang Jin Ko

Sang Jin Ko 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: 20240163234
    Abstract: Provided is a method of operating a terminal. The method includes determining a profile item applicable to the profile view for the account based on an input received by the terminal and a coordinate indicating a position where the profile item is provided on the profile view. The method includes displaying the profile item on a screen of the terminal based on the determined profile item and the determined coordinate. The method includes receiving an input related to the profile item, and displaying a visual effect corresponding to the input on the screen.
    Type: Application
    Filed: November 8, 2023
    Publication date: May 16, 2024
    Inventors: Sul Gi KIM, Ji Hwi PARK, Yun Jin KIM, Nam Hee KO, Hye Seon KIM, Bo Young JANG, Seung Yong JI, Jae Ick HWANG, Sun Je BANG, Ji On CHU, Hye Mi LEE, Shin Young LEE, Seung Uk JEONG, Eun Ho SON, Sang Min SEO, Jeong Ryeol CHOI
  • Publication number: 20240082826
    Abstract: A method for preparing a zinc ferrite-based catalyst according to an embodiment of the present application comprises the steps of: contacting a metal precursor solution including a zinc precursor, a ferrite precursor, an acid solution and water with a basic aqueous solution to obtain a precipitate; and filtering and thereafter drying and calcining the precipitate, wherein the acid solution includes one or more of nitric acid (HNO3) and hydrocarbon acid.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Inventors: Sang Jin HAN, Dong Hyun KO, Kyong Yong CHA, Ye Seul HWANG, Sunhwan HWANG
  • Patent number: 11645699
    Abstract: A method of providing information related to a service by an electronic apparatus, which includes acquiring order information for an item list including one or more items, performing an operation for picking work corresponding to the acquired order information, and when picking of all the one or more items included in the item list for the acquired order information is completed, performing an operation for pickup location assignment, is provided.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: May 9, 2023
    Assignee: Coupang Corp.
    Inventors: Bo Ra Moon, So Hee Kim, Tae Hoa Lee, Sun Hee Hwang, Jeong Seok Oh, Sang Jin Ko, Sung Jin Park, Sang Hee Ahn, Sang Ho Lee, Se Hwan Chung, Hye Jin Oh, Yeo Joo Yang
  • Publication number: 20230034894
    Abstract: A method of providing information related to a service by an electronic apparatus, which includes acquiring order information for an item list including one or more items, performing an operation for picking work corresponding to the acquired order information, and when picking of all the one or more items included in the item list for the acquired order information is completed, performing an operation for pickup location assignment, is provided.
    Type: Application
    Filed: December 29, 2021
    Publication date: February 2, 2023
    Inventors: Bo Ra Moon, So Hee Kim, Tae Hoa Lee, Sun Hee Hwang, Jeong Seok Oh, Sang Jin Ko, Sung Jin Park, Sang Hee Ahn, Sang Ho Lee, Se Hwan Chung, Hye Jin Oh, Yeo Joo Yang
  • Patent number: 10875569
    Abstract: The present invention relates to an arbitration method of an electric power steering apparatus of a vehicle and arbitration apparatus thereof. When overlay requests, which are steering apparatus operation commands or requests, are input from two or more steering-related control systems in a vehicle that includes an electric power steering apparatus and two or more steering-related control systems for controlling the electric power steering apparatus, the steering apparatus operation commands are selectively transferred to the steering apparatus according to the priority of the steering-related control system to adjust various steering-related controls to not conflict with each other, thereby maintaining the stability of the vehicle and making an optimal steering control.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: December 29, 2020
    Assignee: MANDO CORPORATION
    Inventor: Sang Jin Ko
  • Patent number: 10752286
    Abstract: The present invention relates to a steering control apparatus and a steering control method for removing an inwardly caused disturbance or outwardly caused disturbance with respect to a vehicle. It is possible to efficiently remove a disturbance of a steering control apparatus which is generated due to various causes by: confirming a disturbance cause based on estimated frequencies estimated based on three factors that affect the steering control apparatus (i.e., a first estimated frequency estimated based on the estimation of a rack force, a second estimated frequency estimated based on a steering torque signal, and a third estimated frequency estimated based on a vehicle wheel rotational speed); then determining a compensation rate, which varies depending on whether the disturbance is an internally caused disturbance or an externally caused disturbance; and then applying the compensation rate to a steering current value.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: August 25, 2020
    Assignee: MANDO CORPORATION
    Inventor: Sang Jin Ko
  • Patent number: 10246123
    Abstract: The present disclosure relates to a steering control apparatus comprising: a first sensing unit that senses a steering torque using a torque sensor; a high frequency output unit that inputs a steering torque to a high pass filter and output high frequency steering torques; a detection unit that detects a first frequency corresponding to a maximum steering torque among the high frequency steering torques; a calculation unit that calculates a high frequency steering torque change rate which is the rate of change in the high frequency steering torques; a band frequency output unit that inputs the high frequency steering torque change rate to a band pass filter that passes a first frequency band including the first frequency, to output a first frequency band steering torque change rate; and a compensation unit that compensates an assist current of a steering motor on the basis of a rejection gain.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: April 2, 2019
    Assignee: MANDO CORPORATION
    Inventor: Sang Jin Ko
  • Patent number: 10112642
    Abstract: A steering control apparatus, according to an embodiment, may include: a detecting unit configured to detect the angle of a pinion gear that is positioned in the front wheel, a column torque, and a motor current; a frequency estimating unit configured to estimate a road surface frequency that is generated by the road on which the vehicle travels based on at least one of the angle of the pinion gear, the column torque, or the motor current; a rack force estimating unit configured to estimate a rack force based on at least one of the angle of the pinion gear, the column torque, or the motor current; and a control unit configured to extract road surface information that is contained in the rack force based on the road surface frequency and configured to control a steering apparatus based on the road surface information and the rack force.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: October 30, 2018
    Assignee: MANDO CORPORATION
    Inventor: Sang Jin Ko
  • Patent number: 9926006
    Abstract: The present invention relates to an electronic control unit and a method for compensating for a torque steer.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: March 27, 2018
    Assignee: MANDO CORPORATION
    Inventors: Sang Jin Ko, Seung Gyu Hong
  • Publication number: 20170247050
    Abstract: The present invention relates to an electronic control unit and a method for compensating for a torque steer.
    Type: Application
    Filed: May 12, 2017
    Publication date: August 31, 2017
    Inventors: Sang Jin KO, Seung Gyu HONG
  • Publication number: 20170190354
    Abstract: The present invention relates to an arbitration method of an electric power steering apparatus of a vehicle and arbitration apparatus thereof. When overlay requests, which are steering apparatus operation commands or requests, are input from two or more steering-related control systems in a vehicle that includes an electric power steering apparatus and two or more steering-related control systems for controlling the electric power steering apparatus, the steering apparatus operation commands are selectively transferred to the steering apparatus according to the priority of the steering-related control system to adjust various steering-related controls to not conflict with each other, thereby maintaining the stability of the vehicle and making an optimal steering control.
    Type: Application
    Filed: January 4, 2017
    Publication date: July 6, 2017
    Inventor: Sang Jin KO
  • Publication number: 20170183031
    Abstract: The present invention relates to a steering control apparatus and a steering control method for removing an inwardly caused disturbance or outwardly caused disturbance with respect to a vehicle. It is possible to efficiently remove a disturbance of a steering control apparatus which is generated due to various causes by: confirming a disturbance cause based on estimated frequencies estimated based on three factors that affect the steering control apparatus (i.e., a first estimated frequency estimated based on the estimation of a rack force, a second estimated frequency estimated based on a steering torque signal, and a third estimated frequency estimated based on a vehicle wheel rotational speed); then determining a compensation rate, which varies depending on whether the disturbance is an internally caused disturbance or an externally caused disturbance; and then applying the compensation rate to a steering current value.
    Type: Application
    Filed: December 8, 2016
    Publication date: June 29, 2017
    Inventor: Sang Jin KO
  • Publication number: 20170166244
    Abstract: The present disclosure relates to a steering control apparatus comprising: a first sensing unit that senses a steering torque using a torque sensor; a high frequency output unit that inputs a steering torque to a high pass filter and output high frequency steering torques; a detection unit that detects a first frequency corresponding to a maximum steering torque among the high frequency steering torques; a calculation unit that calculates a high frequency steering torque change rate which is the rate of change in the high frequency steering torques; a band frequency output unit that inputs the high frequency steering torque change rate to a band pass filter that passes a first frequency band including the first frequency, to output a first frequency band steering torque change rate; and a compensation unit that compensates an assist current of a steering motor on the basis of a rejection gain.
    Type: Application
    Filed: December 8, 2016
    Publication date: June 15, 2017
    Inventor: Sang Jin KO
  • Patent number: 9650068
    Abstract: The present invention relates to an electronic control unit and a method for compensating for a torque steer.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: May 16, 2017
    Assignee: MANDO CORPORATION
    Inventor: Sang Jin Ko
  • Publication number: 20170113717
    Abstract: The present invention relates to an electronic control unit and a method for compensating for a torque steer.
    Type: Application
    Filed: October 27, 2015
    Publication date: April 27, 2017
    Applicant: MANDO CORPORATION
    Inventor: Sang Jin KO
  • Publication number: 20170096161
    Abstract: A steering control apparatus, according to an embodiment, may include: a detecting unit configured to detect the angle of a pinion gear that is positioned in the front wheel, a column torque, and a motor current; a frequency estimating unit configured to estimate a road surface frequency that is generated by the road on which the vehicle travels based on at least one of the angle of the pinion gear, the column torque, or the motor current; a rack force estimating unit configured to estimate a rack force based on at least one of the angle of the pinion gear, the column torque, or the motor current; and a control unit configured to extract road surface information that is contained in the rack force based on the road surface frequency and configured to control a steering apparatus based on the road surface information and the rack force.
    Type: Application
    Filed: October 4, 2016
    Publication date: April 6, 2017
    Inventor: Sang Jin KO
  • Patent number: 9174926
    Abstract: The present invention relates to norbornene-ester-based derivatives, to a method for preparing same, and to the uses thereof. This compound may be used as a plasticizer which can replace a phthalate-based plasticizer.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: November 3, 2015
    Assignees: Sangmyung University Seoul Industry-Academic Cooperation Foundation, Korea Research Institute of Chemical Technology
    Inventors: Ju Hui Kang, Je Wan Woo, Yong Sung Park, Hyun Chul Oh, Jun Seong Park, Yi Wen Jin, Dae Hee Yun, Sang Jin Ko, Kun Wu Chung, Yeong Un Kim, Nam Kyun Kim
  • Publication number: 20150152039
    Abstract: The present invention relates to norbornene-ester-based derivatives, to a method for preparing same, and to the uses thereof. This compound may be used as a plasticizer which can replace a phthalate-based plasticizer.
    Type: Application
    Filed: February 6, 2015
    Publication date: June 4, 2015
    Inventors: Ju Hui KANG, Je Wan WOO, Yong Sung PARK, Hyun Chul OH, Jun Seong PARK, Yi Wen JIN, Dae Hee YUN, Sang Jin KO, Kun Wu CHUNG, Yeong Un KIM, Nam Kyun KIM
  • Patent number: 9040737
    Abstract: The present invention relates to norbornene-ester-based derivatives, to a method for preparing same, and to the uses thereof. This compound may be used as a plasticizer which can replace a phthalate-based plasticizer.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: May 26, 2015
    Assignees: Sangmyung University Seoul Industry-Academy Cooperation Foundation, Korea Research Institute of Chemical Technology
    Inventors: Ju Hui Kang, Je Wan Woo, Yong Sung Park, Hyun Chul Oh, Jun Seong Park, Yi Wen Jin, Dae Hee Yun, Sang Jin Ko, Kun Wu Chung, Yeong Un Kim, Nam Kyun Kim
  • Publication number: 20140018568
    Abstract: The present invention relates to norbornene-ester-based derivatives, to a method for preparing same, and to the uses thereof. This compound may be used as a plasticizer which can replace a phthalate-based plasticizer.
    Type: Application
    Filed: March 22, 2012
    Publication date: January 16, 2014
    Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Ju Hui Kang, Je Wan Woo, Yong Sung Park, Hyun Chul Oh, Jun Seong Park, Yi Wen Jin, Dae Hee Yun, Sang Jin Ko, Kun Wu Chung, Yeong Un Kim, Nam Kyun Kim