Patents by Inventor Seung Un Choi

Seung Un 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: 20240030431
    Abstract: The present invention relates to a lithium battery cathode active material and a preparation method therefor, the material having an orientation formed by firing a density gradient precursor in which the density gradually changes from the inside of second particles, formed as an aggregate of primary particles, to the outside of the particles. The lithium battery cathode active material according to the present invention has an oriented structure, and thus can have a long lifespan and high capacity characteristics.
    Type: Application
    Filed: November 23, 2021
    Publication date: January 25, 2024
    Inventors: Seung Un Choi, Jae Han Kim, Deuk Su Kim, Hye Jeong Park, Jeong Han Kim
  • Patent number: 9964631
    Abstract: A radar apparatus includes: a transmission unit including a plurality of transmission antennas which are arranged at a predetermined transmission antenna interval, and configured to radiate a transmission signal using the plurality of transmission antennas; a reception unit including a plurality of reception antennas which are arranged at a predetermined reception antenna interval, and configured to receive a reception signal when the transmission signal is reflected by an object, through the plurality of reception antennas; and a signal processing unit configured to detect the object based on the reception signal received by the reception unit.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: May 8, 2018
    Assignee: MANDO CORPORATION
    Inventors: Seung Un Choi, Seong Hee Jeong
  • Patent number: 9261588
    Abstract: A radar apparatus includes a printed circuit board having a top side, on which a radar antenna unit and an RF circuit unit are mounted, and a bottom side, on which a base band circuit unit and a signal processing circuit unit are mounted. A base plate is coupled to the printed circuit board. A protective member is coupled to the top side of the printed circuit board to cover the RF circuit unit in order to protect the RF circuit unit. The protective member has a groove formed on one side thereof, which serves as a passage of a wire for connecting the radar antenna unit and the RF circuit unit mounted on the top side of the printed circuit board.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: February 16, 2016
    Assignee: MANDO CORPORATION
    Inventors: Min Seok Kim, Seong Hee Jeong, Seung Un Choi, Jae Eun Lee
  • Patent number: 9207311
    Abstract: The present invention relates to a radar apparatus. More particularly, the present invention is a radar apparatus having a front end structure that is reduced in size and the number of parts.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: December 8, 2015
    Assignee: MANDO CORPORATION
    Inventors: Seung Un Choi, Min Seok Kim, Seong Hee Jeong, Jae Eun Lee
  • Patent number: 9121928
    Abstract: Disclosed are a radar apparatus having a reduced size and a reduced number of components, and a method of assembling the radar apparatus.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: September 1, 2015
    Assignee: MANDO CORPORATION
    Inventors: Jae Eun Lee, Seung Un Choi, Min Seok Kim, Seong Hee Jeong
  • Publication number: 20150229033
    Abstract: Disclosed are a radar apparatus and an antenna apparatus. In particular, disclosed are a radar apparatus and an antenna apparatus including an antenna structure capable of suppressing a grating lobe while enhancing resolution.
    Type: Application
    Filed: May 30, 2014
    Publication date: August 13, 2015
    Applicant: Mando Corporation
    Inventors: Seung Un CHOI, Seong Hee JEONG
  • Patent number: 9103906
    Abstract: The present invention relates to a radar apparatus utilizing multiple transmission channels having the structure enabling multiple transmission channels only by using only the number of transmission RF ports as many as the number of the transmission channels.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: August 11, 2015
    Assignee: MANDO CORPORATION
    Inventor: Seung Un Choi
  • Patent number: 8928523
    Abstract: Disclosed is a method and a radar apparatus for transmitting a transmission signal at a controlled timing in order to avoid signal interference, thereby exactly detecting a target object without misrecognition.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: January 6, 2015
    Assignee: Mando Corporation
    Inventors: Jae Eun Lee, Seong Hee Jeong, Joo Yeol Yang, Seung Un Choi
  • Publication number: 20140368374
    Abstract: Disclosed are a radar apparatus and an antenna apparatus. In particular, disclosed are a radar apparatus and an antenna apparatus including an antenna structure capable of suppressing a grating lobe while enhancing resolution.
    Type: Application
    Filed: June 12, 2014
    Publication date: December 18, 2014
    Inventors: Seung Un CHOI, Seong Hee JEONG
  • Publication number: 20130342385
    Abstract: The present invention relates to a radar apparatus utilizing multiple transmission channels having the structure enabling multiple transmission channels only by using only the number of transmission RF ports as many as the number of the transmission channels.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 26, 2013
    Inventor: Seung Un CHOI
  • Publication number: 20130249732
    Abstract: The present invention relates to a radar apparatus. More particularly, the present invention is a radar apparatus having a front end structure that is reduced in size and the number of parts.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 26, 2013
    Inventors: Seung Un CHOI, Min Seok KIM, Seong Hee JEONG, Jae Eun LEE
  • Publication number: 20120176266
    Abstract: Disclosed is a method and a radar apparatus for transmitting a transmission signal at a controlled timing in order to avoid signal interference, thereby exactly detecting a target object without misrecognition.
    Type: Application
    Filed: January 11, 2012
    Publication date: July 12, 2012
    Inventors: Jae Eun Lee, Seong Hee Jeong, Joo Yeol Yang, Seung Un Choi
  • Publication number: 20120169523
    Abstract: Disclosed is a method and a radar apparatus for transmitting a transmission signal through a changing transmission frequency band in order to avoid signal interference, thereby exactly detecting a target object without misrecognition.
    Type: Application
    Filed: January 3, 2012
    Publication date: July 5, 2012
    Inventors: Jae Eun LEE, Seong Hee JEONG, Joo Yeol YANG, Seung Un CHOI
  • Publication number: 20110163906
    Abstract: A radar apparatus, an antenna apparatus, and a data acquisition method are provided, which can reduce the size of a radar apparatus as well as maintaining angular resolution.
    Type: Application
    Filed: January 4, 2011
    Publication date: July 7, 2011
    Inventors: Joo Yeol YANG, Jae Eun Lee, Kyeong Jin Song, Seong Hee Jeong, Seung Un Choi, Hyung Suk Ham