Patents by Inventor Kwanghyun Choi

Kwanghyun 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: 20210164722
    Abstract: A door for a home appliance, a home appliance, and a method for manufacturing the same, are disclosed. The door for a home appliance comprises a panel assembly; and a frame assembly defining a predetermined space having an opening connected with an edge of the panel assembly, and making a foaming space for receiving a thermal insulator by means of the predetermined space of the frame assembly and the edge of the panel assembly, wherein a foaming injection hole through which the thermal insulator is injected is provided on at least one of ends of an upper surface, a lower surface, a left side and a right side of the frame assembly.
    Type: Application
    Filed: February 3, 2021
    Publication date: June 3, 2021
    Inventors: Kwanghyun CHOI, Hyungkyu PARK, Myeongha YI
  • Publication number: 20210148629
    Abstract: A refrigerator includes a cabinet defining a storage chamber, a door configured to open and close the storage chamber, a cooling device configured to cool the storage chamber, an elevation device configured to move a container in the storage chamber upward and downward, a locking device disposed at the elevation device and configured to, based on the elevation device being rotated about a front end of the elevation device in a folded state, lock the elevation device to the folded state and maintain the folded state, and a support plate that is disposed at the elevation device and includes a handle disposed at a rear portion of the support plate.
    Type: Application
    Filed: October 30, 2020
    Publication date: May 20, 2021
    Inventor: Kwanghyun CHOI
  • Publication number: 20210102749
    Abstract: An elevation device for a refrigerator drawer includes a lower frame, an upper frame, and a lifting assembly. The lifting assembly includes: a pair of first rods having a first end rotatably coupled to the lower frame and a second end that translates along the upper frame; and a pair of second rods having a first end rotatably coupled to the upper frame and a second end that translates along the lower frame. The second rod is rotatably coupled to and crosses the first rod. The first or second rod is connected to a driving device via the first end of the first or second rod, with the driving device disposed outside the upper frame and the lower frame. The first and second rods are configured to, based on power from the driving device, rotate about their respective first ends to elevate the upper frame relative to the lower frame.
    Type: Application
    Filed: December 18, 2020
    Publication date: April 8, 2021
    Inventor: Kwanghyun Choi
  • Patent number: 10945524
    Abstract: A refrigerator includes a cabinet defining a storage chamber, a drawer door, a rail assembly that slidably couples the drawer door to the cabinet, a driving device disposed at the door part, and an elevation device disposed at the drawer part to vertically elevate at least a portion of the drawer part. The driving device includes a motor assembly, a pair of screw units, and a pair of levers, each of the pair of levers being coupled to and configured to be rotated by a corresponding one of the pair of screw units to elevate the elevation device. The drawer door includes a door part configured to open and close the storage chamber and a drawer part that is configured to be inserted into and withdrawn out of the storage chamber and defines a storage space.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: March 16, 2021
    Assignee: LG Electronics Inc.
    Inventor: Kwanghyun Choi
  • Patent number: 10941975
    Abstract: A door for a home appliance, a home appliance, and a method for manufacturing the same, are disclosed. The door for a home appliance comprises a panel assembly; and a frame assembly defining a predetermined space having an opening connected with an edge of the panel assembly, and making a foaming space for receiving a thermal insulator by means of the predetermined space of the frame assembly and the edge of the panel assembly, wherein a foaming injection hole through which the thermal insulator is injected is provided on at least one of ends of an upper surface, a lower surface, a left side and a right side of the frame assembly.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: March 9, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Kwanghyun Choi, Hyungkyu Park, Myeongha Yi
  • Patent number: 10921052
    Abstract: An elevation device for a refrigerator drawer includes a lower frame, an upper frame, and a lifting assembly. The lifting assembly includes: a pair of first rods having a first end rotatably coupled to the lower frame and a second end that translates along the upper frame; and a pair of second rods having a first end rotatably coupled to the upper frame and a second end that translates along the lower frame. The second rod is rotatably coupled to and crosses the first rod. The first or second rod is connected to a driving device via the first end of the first or second rod, with the driving device disposed outside the upper frame and the lower frame. The first and second rods are configured to, based on power from the driving device, rotate about their respective first ends to elevate the upper frame relative to the lower frame.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: February 16, 2021
    Assignee: LG Electronics Inc.
    Inventor: Kwanghyun Choi
  • Publication number: 20210003343
    Abstract: A refrigerator includes a cabinet that defines a lower storage space, a front panel door part, a drawer part connected to the front panel door part, a support member located at the drawer part and configured to seat one or more objects stored in the drawer part, at least one draw-out rail that is configured to connect the drawer part to an inner wall surface of the lower storage space, and that is configured to extend and retract in multiple stages to assist insertion and withdrawal of the drawer part based on movement of the front panel door part, and at least one elevation device that is located at each of both side surfaces of the drawer part, that is connected to each of both sides of the support member, and that is configured to elevate the support member relative to the drawer part.
    Type: Application
    Filed: September 21, 2020
    Publication date: January 7, 2021
    Inventor: Kwanghyun CHOI
  • Patent number: 10876788
    Abstract: A refrigerator includes a cabinet that defines a lower storage space, a front panel door part, a drawer part connected to the front panel door part, a support member located at the drawer part and configured to seat one or more objects stored in the drawer part, at least one draw-out rail that is configured to connect the drawer part to an inner wall surface of the lower storage space, and that is configured to extend and retract in multiple stages to assist insertion and withdrawal of the drawer part based on movement of the front panel door part, and at least one elevation device that is located at each of both side surfaces of the drawer part, that is connected to each of both sides of the support member, and that is configured to elevate the support member relative to the drawer part.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: December 29, 2020
    Assignee: LG Electronics Inc.
    Inventor: Kwanghyun Choi
  • Publication number: 20200284502
    Abstract: A refrigerator includes a cabinet that defines a lower storage space, a front panel door part configured to open and close the lower storage space, a drawer part connected to the front panel door part, a support member located at the drawer part, and an elevation assembly located at the front panel door part and configured to elevate the support member relative to the drawer part. The elevation assembly includes at least one elevation member that extends from the front panel door part to the drawer part and that passes through the drawer part, and a driving device that is located in the front panel door part, that is configured to provide power to the at least one elevation member, and that is configured to cause a vertical movement of the at least one elevation member relative to the drawer part.
    Type: Application
    Filed: May 22, 2020
    Publication date: September 10, 2020
    Inventor: Kwanghyun CHOI
  • Patent number: 10724788
    Abstract: A refrigerator includes a cabinet that defines a lower storage space, a front panel door part configured to open and close the lower storage space, a drawer part connected to the front panel door part, a support member located at the drawer part, and an elevation assembly located at the front panel door part and configured to elevate the support member relative to the drawer part. The elevation assembly includes at least one elevation member that extends from the front panel door part to the drawer part and that passes through the drawer part, and a driving device that is located in the front panel door part, that is configured to provide power to the at least one elevation member, and that is configured to cause a vertical movement of the at least one elevation member relative to the drawer part.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: July 28, 2020
    Assignee: LG Electronics Inc.
    Inventor: Kwanghyun Choi
  • Publication number: 20200173716
    Abstract: A refrigerator includes a cabinet forming a storage space, a main door that opens and closes the storage space while defining an opening part that is in communication with the storage space, a sub-door mounted to the main door and configured to open and close the opening part, the sub-door including a panel assembly for allowing selective viewing of an inside of the opening part, the injection port is provided at a lower side of the sub-door to direct an insulating foaming solution to a space in the sub-door, a detection device for detecting an operation of a user, a lighting unit inside the refrigerator that turns on based on user operation to allow selective viewing of the inner side of the opening part, and a display unit inside the refrigerator at a position corresponding to the panel.
    Type: Application
    Filed: February 7, 2020
    Publication date: June 4, 2020
    Inventor: Kwanghyun CHOI
  • Patent number: 10598427
    Abstract: A refrigerator includes a cabinet forming a storage space, a main door that opens and closes the storage space while defining an opening part that is in communication with the storage space, a sub-door mounted to the main door and configured to open and close the opening part, the sub-door including a panel assembly for allowing selective viewing of an inside of the opening part, a detection device for detecting an operation of a user, a lighting unit inside the refrigerator that turns on based on user operation to allow selective viewing of the inner side of the opening part, and a display unit inside the refrigerator at a position corresponding to the panel assembly that becomes visible and displays an operation state of the refrigerator when the lighting unit turns on.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: March 24, 2020
    Assignee: LG Electronics Inc.
    Inventor: Kwanghyun Choi
  • Publication number: 20200080766
    Abstract: A door for a home appliance, a home appliance, and a method for manufacturing the same, are disclosed. The door for a home appliance comprises a panel assembly; and a frame assembly defining a predetermined space having an opening connected with an edge of the panel assembly, and making a foaming space for receiving a thermal insulator by means of the predetermined space of the frame assembly and the edge of the panel assembly, wherein a foaming injection hole through which the thermal insulator is injected is provided on at least one of ends of an upper surface, a lower surface, a left side and a right side of the frame assembly.
    Type: Application
    Filed: November 15, 2019
    Publication date: March 12, 2020
    Inventors: Kwanghyun CHOI, Hyungkyu PARK, Myeongha YI
  • Publication number: 20200069055
    Abstract: A refrigerator includes a cabinet defining a storage chamber, a drawer door, a rail assembly that slidably couples the drawer door to the cabinet, a driving device disposed at the door part, and an elevation device disposed at the drawer part to vertically elevate at least a portion of the drawer part. The driving device includes a motor assembly, a pair of screw units, and a pair of levers, each of the pair of levers being coupled to and configured to be rotated by a corresponding one of the pair of screw units to elevate the elevation device. The drawer door includes a door part configured to open and close the storage chamber and a drawer part that is configured to be inserted into and withdrawn out of the storage chamber and defines a storage space.
    Type: Application
    Filed: August 30, 2019
    Publication date: March 5, 2020
    Inventor: Kwanghyun CHOI
  • Publication number: 20200072541
    Abstract: A refrigerator includes a cabinet defining a storage chamber, a drawer door configured to be inserted into and withdrawn out of the storage chamber, a driving device provided at the door part, an elevation device provided at the drawer part and having a scissors lift assembly, and a connecting assembly that couples the driving device to the scissors lift assembly to transfer driving force from the driving device to the scissors lift assembly. The elevation device is configured, based on being uncoupled from the connecting assembly, to be separable from the drawer part, and the elevation device includes a restricting unit configured to restrict the scissors lift assembly from unfolding when the elevation device is separated from the drawer part. The drawer door includes a drawer part and a door part that is configured to, based on the drawer door being inserted into the storage chamber, close the storage chamber.
    Type: Application
    Filed: August 30, 2019
    Publication date: March 5, 2020
    Inventor: Kwanghyun CHOI
  • Publication number: 20190390895
    Abstract: An elevation device for a refrigerator drawer includes a lower frame, an upper frame, and a lifting assembly. The lifting assembly includes: a pair of first rods having a first end rotatably coupled to the lower frame and a second end that translates along the upper frame; and a pair of second rods having a first end rotatably coupled to the upper frame and a second end that translates along the lower frame. The second rod is rotatably coupled to and crosses the first rod. The first or second rod is connected to a driving device via the first end of the first or second rod, with the driving device disposed outside the upper frame and the lower frame. The first and second rods are configured to, based on power from the driving device, rotate about their respective first ends to elevate the upper frame relative to the lower frame.
    Type: Application
    Filed: December 21, 2018
    Publication date: December 26, 2019
    Inventor: Kwanghyun CHOI
  • Patent number: 10502479
    Abstract: A door for a home appliance, a home appliance, and a method for manufacturing the same, are disclosed. The door for a home appliance comprises a panel assembly; and a frame assembly defining a predetermined space having an opening connected with an edge of the panel assembly, and making a foaming space for receiving a thermal insulator by means of the predetermined space of the frame assembly and the edge of the panel assembly, wherein a foaming injection hole through which the thermal insulator is injected is provided on at least one of ends of an upper surface, a lower surface, a left side and a right side of the frame assembly.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: December 10, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Kwanghyun Choi, Hyungkyu Park, Myeongha Yi
  • Publication number: 20190346199
    Abstract: A refrigerator includes a cabinet that defines a lower storage space, a front panel door part, a drawer part connected to the front panel door part, a support member located at the drawer part and configured to seat one or more objects stored in the drawer part, at least one draw-out rail that is configured to connect the drawer part to an inner wall surface of the lower storage space, and that is configured to extend and retract in multiple stages to assist insertion and withdrawal of the drawer part based on movement of the front panel door part, and at least one elevation device that is located at each of both side surfaces of the drawer part, that is connected to each of both sides of the support member, and that is configured to elevate the support member relative to the drawer part.
    Type: Application
    Filed: May 8, 2019
    Publication date: November 14, 2019
    Inventor: Kwanghyun CHOI
  • Patent number: 10465970
    Abstract: A refrigerator includes a cabinet, a front panel door part, a drawer part, a driving device located in the front panel door part, and an elevation device located in the drawer part. The elevation device includes a lifting assembly including rods that elevate an object in the drawer part relative to the drawer part. The driving device includes a motor assembly that provides power to the elevation device, a screw assembly connected to the motor assembly, a guide member disposed at a side of the screw assembly and configured to guide movement of a rotation gear of the screw assembly, and a lever connected to the rotation gear and configured to, as the lever rotates about the lever rotation shaft based on the rotation gear moving along the guide member, apply force that causes the rods to rotate about rod rotation shafts to elevate the elevation device.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: November 5, 2019
    Assignee: LG Electronics Inc.
    Inventors: Daekil Kang, Cheoljun Park, Kwanghyun Choi
  • Publication number: 20190293340
    Abstract: A refrigerator includes a cabinet that defines a lower storage space, a front panel door part configured to open and close the lower storage space, a drawer part connected to the front panel door part, a support member located at the drawer part, and an elevation assembly located at the front panel door part and configured to elevate the support member relative to the drawer part. The elevation assembly includes at least one elevation member that extends from the front panel door part to the drawer part and that passes through the drawer part, and a driving device that is located in the front panel door part, that is configured to provide power to the at least one elevation member, and that is configured to cause a vertical movement of the at least one elevation member relative to the drawer part.
    Type: Application
    Filed: December 21, 2018
    Publication date: September 26, 2019
    Inventor: Kwanghyun CHOI