Patents by Inventor HAN YUN CHOI

HAN YUN 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: 20250121744
    Abstract: A walk-in device for a vehicle seat includes a rear link having one end connected to a seat cushion frame by a first hinge shaft, and the other end connected to an upper rail by a second hinge shaft, the rear link being capable of rotating in an unlocking direction about the second hinge shaft, and an unlocking device configured to operate in conjunction with a rotational operation of the rear link and implement an unlocked state by pressing a locking pin by means of operations of a plurality of links.
    Type: Application
    Filed: September 30, 2024
    Publication date: April 17, 2025
    Inventors: Cheolhwan YOON, HWA YOUNG MUN, GWON HWA BOK, SEONG JUN SHIN, HAN YUN CHOI, Junsik HWANG
  • Publication number: 20250091488
    Abstract: A walk-in device for a vehicle seat includes a rear link having one end connected to a seat cushion frame by a first hinge shaft, and the other end connected to an upper rail by a second hinge shaft, the rear link being capable of rotating in an unlocking direction about the second hinge shaft, and an unlocking device configured such that at least one bracket, which operates in conjunction with a rotational operation of the rear link, presses a locking pin in a state in which the bracket is elastically supported by an elastic member, such that an unlocked state is implemented.
    Type: Application
    Filed: August 30, 2024
    Publication date: March 20, 2025
    Inventors: Han Yun CHOI, Hwa Young MUN, Gwon Hwa BOK, Seong Jun SHIN, Cheolhwan YOON, Junsik HWANG
  • Publication number: 20250083577
    Abstract: A walk-in device for a vehicle seat includes a rear link having one end connected to a seat cushion frame by a first hinge shaft, and the other end connected to an upper rail by a second hinge shaft, and a pressing bracket configured to be pressed by the rear link.
    Type: Application
    Filed: August 29, 2024
    Publication date: March 13, 2025
    Inventors: Gwon Hwa BOK, Hwa Young MUN, Seong Jun SHIN, Cheolhwan YOON, Han Yun CHOI, Junsik HWANG
  • Publication number: 20240190307
    Abstract: A reclining device for a vehicle seat includes a rotary bracket having a center portion rotatably connected to a first frame and having a first locking section and a second locking section connected to the first locking section, and a cam configured to rotate about a center portion connected to the first frame and having a locking portion provided at one end thereof and positioned in the first locking section or the second locking section so as to be locked.
    Type: Application
    Filed: November 28, 2023
    Publication date: June 13, 2024
    Inventors: Han Yun CHOI, Jong Su KIM, Cheolhwan YOON, Sai Youn JUNG, Hwa Young MUN, Gwon Hwa BOK, Jae Yong JANG, Junsik HWANG
  • Publication number: 20240166110
    Abstract: A leg rest apparatus includes a base bracket mounted below a seat cushion of a vehicle seat, a rear link coupled to a lateral portion of the base bracket, a front link coupled to the lateral portion of the base bracket and positioned above the rear link, a main link hingedly coupled to one end of the rear link and a middle portion of the front link, a support link coupled to one end of the front link, and a leg rest link coupled to the main link and one end of the support link.
    Type: Application
    Filed: October 19, 2023
    Publication date: May 23, 2024
    Inventors: JONG SU KIM, KYEONG JU KIM, HWA YOUNG MUN, GWON HWA BOK, Cheolhwan YOON, JAE YONG JANG, HAN YUN CHOI, Junsik HWANG