Patents by Inventor Chun ho BYUN

Chun ho BYUN 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: 11319740
    Abstract: The present invention discloses a multi-link hinge device, wherein the multi-link hinge device includes a bottom lever installed on a main body of a member with a door and having a first bottom fastening hole and a second bottom fastening hole formed to be spaced apart from an end side; a top lever installed on the door of the main body and having a first top fastening hole and a second top fastening hole spaced apart from each other; a body lever having one end pivotally connected to the first bottom fastening hole and having a first body fastening hole formed at the other end and a second body fastening hole formed inside; a first link pivotally connected to the first top fastening hole and the first body fastening hole; a second link pivotally connected to the second top fastening hole and the second body fastening hole, and having a link central fastening hole formed inside; a third link pivotally connected to the link central fastening hole and the second bottom fastening hole; and a rocker arm that is p
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: May 3, 2022
    Assignee: EPTECH CO., LTD.
    Inventor: Chun Ho Byun
  • Publication number: 20210238902
    Abstract: The present invention discloses a multi-link hinge device, wherein the multi-link hinge device includes a bottom lever installed on a main body of a member with a door and having a first bottom fastening hole and a second bottom fastening hole formed to be spaced apart from an end side; a top lever installed on the door of the main body and having a first top fastening hole and a second top fastening hole spaced apart from each other; a body lever having one end pivotally connected to the first bottom fastening hole and having a first body fastening hole formed at the other end and a second body fastening hole formed inside; a first link pivotally connected to the first top fastening hole and the first body fastening hole; a second link pivotally connected to the second top fastening hole and the second body fastening hole, and having a link central fastening hole formed inside; a third link pivotally connected to the link central fastening hole and the second bottom fastening hole; and a rocker arm that is p
    Type: Application
    Filed: February 18, 2019
    Publication date: August 5, 2021
    Applicant: EPTECH CO., LTD.
    Inventor: Chun Ho BYUN
  • Patent number: 10876335
    Abstract: An embodiment of the present invention provides a multi-link hinge device in which any one of a plurality of links connecting a plurality of levers to each other may serve as a link and at the same time serve as a cover, thereby preventing a finger or the like from being caught in a space between the plurality of levers in advance when the door is opened or closed.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: December 29, 2020
    Assignees: EPTECH CO., LTD.
    Inventor: Chun ho Byun
  • Publication number: 20200131830
    Abstract: An embodiment of the present invention provides a multi-link hinge device in which any one of a plurality of links connecting a plurality of levers to each other may serve as a link and at the same time serve as a cover, thereby preventing a finger or the like from being caught in a space between the plurality of levers in advance when the door is opened or closed.
    Type: Application
    Filed: October 18, 2019
    Publication date: April 30, 2020
    Applicants: EPTECH CO., LTD.
    Inventor: Chun ho BYUN