Patents by Inventor Sung Han Cho

Sung Han Cho 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: 11479294
    Abstract: A steering system of a vehicle is provided. The steering system adjusts the torsional rigidity of a torsion bar without limitation as to the configuration thereof and performs active control responding to the vehicle state by adjusting steering characteristics by controlling the torsional rigidity of the torsion bar based on the traveling condition, load state or driving mode of the vehicle. The steering system includes an MR assist device, which is coupled to an end portion of the torsion bar and adjusts the rotation and torsional rigidity of the torsion bar using an MR fluid as a working fluid.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: October 25, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Ji Hoon Lee, Jin Gyo Suh, Sung Han Cho, Seo An Lee
  • Patent number: 11133327
    Abstract: A three-dimensional semiconductor device includes: a common source line passing between a first channel structure and a second channel structure and between a first dummy channel structure and a second dummy channel structure, in which a distance in a first direction between the common source line and the first channel structure is equal to a distance in the first direction between the common source line and the second channel structure, and a distance in the first direction between the common source line and the first dummy channel structure is different from a distance in the first direction between the common source line and the second dummy channel structure.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: September 28, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-jin Jung, Hyoung-ryeol In, Sung-han Cho
  • Patent number: 11046140
    Abstract: A rear suspension apparatus of a vehicle includes: a transverse helper leaf spring connected to a rear axle and disposed in a transverse direction; and a first stopper mechanism and a second stopper mechanism contacting the transverse helper leaf spring when the vehicle moves. The rear suspension apparatus is capable of improving riding quality by using a new spring constant value generated by the transverse helper leaf spring when freight is loaded and a vehicle body frame moves downwardly, and restricting rolling movement of the vehicle when rolling is caused, thereby increasing roll stiffness and improving driving stability.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: June 29, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Sung Han Cho
  • Patent number: 10946708
    Abstract: A bush device for an eye section of a leaf spring applied to a suspension of a vehicle is disclosed. The bush device includes a first hollow bush that is configured to be inserted into the eye section, and a plurality of second bushes that are disposed adjacent to both side surfaces of the eye section, respectively. Each of the second bushes have an aperture that is formed at a central portion thereof, and a leaf spring fixing bracket into which the second bushes are inserted.
    Type: Grant
    Filed: November 3, 2018
    Date of Patent: March 16, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sung-Han Cho, Yong-Soo Lee
  • Publication number: 20200353785
    Abstract: A rear suspension apparatus of a vehicle includes: a transverse helper leaf spring connected to a rear axle and disposed in a transverse direction; and a first stopper mechanism and a second stopper mechanism contacting the transverse helper leaf spring when the vehicle moves. The rear suspension apparatus is capable of improving riding quality by using a new spring constant value generated by the transverse helper leaf spring when freight is loaded and a vehicle body frame moves downwardly, and restricting rolling movement of the vehicle when rolling is caused, thereby increasing roll stiffness and improving driving stability.
    Type: Application
    Filed: September 11, 2019
    Publication date: November 12, 2020
    Inventor: Sung Han Cho
  • Publication number: 20200180686
    Abstract: A steering system of a vehicle is provided. The steering system adjusts the torsional rigidity of a torsion bar without limitation as to the configuration thereof and performs active control responding to the vehicle state by adjusting steering characteristics by controlling the torsional rigidity of the torsion bar based on the traveling condition, load state or driving mode of the vehicle. The steering system includes an MR assist device, which is coupled to an end portion of the torsion bar and adjusts the rotation and torsional rigidity of the torsion bar using an MR fluid as a working fluid.
    Type: Application
    Filed: June 21, 2019
    Publication date: June 11, 2020
    Inventors: Ji Hoon Lee, Jin Gyo Suh, Sung Han Cho, Seo An Lee
  • Publication number: 20200083250
    Abstract: A three-dimensional semiconductor device includes: a common source line passing between a first channel structure and a second channel structure and between a first dummy channel structure and a second dummy channel structure, in which a distance in a first direction between the common source line and the first channel structure is equal to a distance in the first direction between the common source line and the second channel structure, and a distance in the first direction between the common source line and the first dummy channel structure is different from a distance in the first direction between the common source line and the second dummy channel structure.
    Type: Application
    Filed: April 15, 2019
    Publication date: March 12, 2020
    Inventors: YOUNG-JIN JUNG, Hyoung-ryeol In, Sung-han Cho
  • Publication number: 20190315177
    Abstract: A bush device for an eye section of a leaf spring applied to a suspension of a vehicle is disclosed. The bush device includes a first hollow bush that is configured to be inserted into the eye section, and a plurality of second bushes that are disposed adjacent to both side surfaces of the eye section, respectively. Each of the second bushes have an aperture that is formed at a central portion thereof, and a leaf spring fixing bracket into which the second bushes are inserted.
    Type: Application
    Filed: November 3, 2018
    Publication date: October 17, 2019
    Inventors: Sung-Han Cho, Yong-Soo Lee
  • Patent number: 6502160
    Abstract: An apparatus and method for establishing construction information of an unmanaged Ethernet switch which is capable of readily replacing a memory according to a construction form of each option slot without opening or closing an outer casing. In the apparatus for establishing construction information of an unmanaged Ethernet switch, a first memory storing switch construction information, in the case where there is no option board mounted in an option slot, is positioned on a main board, and a second memory storing switch construction information, in the case where there is a option board in the option slot, is positioned on the option board, so that when there is no option board in the option slot, the first memory is automatically used, and when there is an option board in the option slot, the second memory is used.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: December 31, 2002
    Assignee: LG Information & Communications Ltd.
    Inventors: Jin Dae Kim, Sung Han Cho