Patents by Inventor Seung Hun Chang

Seung Hun Chang 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: 9381833
    Abstract: The present invention relates to a reclining apparatus for a vehicle seat, including: a gear plate configured to be connected to a seat cushion and have an external gear formed on an outer circumference thereof and a coupling protrusion provided along a circumference thereof having a rotating radius smaller than that of the external gear; a mobile flange configured to be connected to the seat back, have an internal gear formed on an inner circumference thereof, and eccentrically engaged with the external gear; and an operating unit configured to be provided in an operation space between a center hole of the gear plate and a center hole of the mobile flange to make the mobile flange be relatively rotated to the gear plate while being eccentric to the gear plate.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: July 5, 2016
    Assignee: Hyundai Dymos Incorporated
    Inventor: Seung Hun Chang
  • Publication number: 20150367752
    Abstract: An apparatus for moving a motor-operated seat rail, including a lead screw provided along an axial direction of a fixed rail, a mounting bracket having opposite ends combined with a moving rail, with the lead screw passing through a central portion of the mounting bracket so that the bracket moves along the lead screw, and a spindle nut engaged with the lead screw through a screw type engagement. A first end of the spindle nut is rotatably held on the mounting bracket so as to rotate relative to the bracket, and a second end passes through the central portion of the mounting bracket and extends along an axial direction of the lead screw, and being configured such that the inner diameter of the second end is able to be elastically reduced so that the inner circumferential surface of the second end comes into close contact with the outer circumferential surface of the lead screw.
    Type: Application
    Filed: June 19, 2015
    Publication date: December 24, 2015
    Inventors: Seung Hun Chang, Jong Tak Lee
  • Publication number: 20150367758
    Abstract: a reclining device for a vehicle seat is provided by the present disclosure. The reclining device includes a bush having a serration is disposed between a plate protrusion of gear plate and a bearing. A cap inhibiting an input device and a spring from being disassembled is coupled to the gear plate by a weld. A disk-shaped retainer is coupled to a mobile flange by another weld.
    Type: Application
    Filed: June 22, 2015
    Publication date: December 24, 2015
    Inventor: Seung Hun Chang
  • Publication number: 20150258918
    Abstract: A reclining device for a vehicle seat of the present disclosure includes a base plate provided with an assembling depression, a gear plate inserted into the assembling depression, a mobile flange transferring a torque to a seatback, and a power transmission module installed in a central portion of the gear plate to eccentrically rotate the mobile flange and to inhibit power transfer in an opposite direction. In particular, the reclining device further includes a stopper having a stop protrusion on the mobile flange and the stop protrusion is inserted into an arcuate stop hole formed on the base plate so as to efficiently realizes the stopper's function to limit the forward and backward rotation angle of the seatback to a predetermined range using fewer parts, thus reducing the weight and production cost of a reclining device.
    Type: Application
    Filed: May 28, 2015
    Publication date: September 17, 2015
    Applicant: HYUNDAI DYMOS INCORPORATED
    Inventor: Seung Hun CHANG
  • Publication number: 20150084392
    Abstract: Disclosed herein is a reclining apparatus for a vehicle seat that is capable of improving coupling strength and entire durability and removing operation noise by removing a clearance between components at the time of a reclining operation and is capable of decreasing a cost and a weight by decreasing an entire size.
    Type: Application
    Filed: March 6, 2013
    Publication date: March 26, 2015
    Inventor: Seung Hun Chang
  • Publication number: 20150054324
    Abstract: The present invention relates to a reclining apparatus for a vehicle seat, including: a gear plate configured to be connected to a seat cushion and have an external gear formed on an outer circumference thereof and a coupling protrusion provided along a circumference thereof having a rotating radius smaller than that of the external gear; a mobile flange configured to be connected to the seat back, have an internal gear formed on an inner circumference thereof, and eccentrically engaged with the external gear; and an operating unit configured to be provided in an operation space between a center hole of the gear plate and a center hole of the mobile flange to make the mobile flange be relatively rotated to the gear plate while being eccentric to the gear plate.
    Type: Application
    Filed: March 6, 2013
    Publication date: February 26, 2015
    Applicant: Hyundai Dymos Incorporated
    Inventor: Seung Hun Chang