Patents by Inventor Doo Myun LEE

Doo Myun LEE 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: 20210068540
    Abstract: A sliding device is disclosed for a drawer capable of reinforcing rigidity while reducing noise during operation by mixing and using a plurality of slide balls having different tensile strengths. The sliding device includes: a fixed rail fastened and fixed to a main body, a movable rail fastened and fixed to a storage body, and sliding on the fixed rail, an intermediate rail disposed between the fixed rail and the movable rail to guide the sliding movement of the movable rail, and ball assemblies disposed between the intermediate rail and the fixed rail and between the intermediate rail and the movable rail, respectively to move to be slidable, and provided with a plurality of slide balls having different tensile strengths, the slide ball having a large tensile strength being disposed at the outermost side thereof.
    Type: Application
    Filed: December 28, 2018
    Publication date: March 11, 2021
    Inventors: Doo Myun Lee, Ki Kwang Kim
  • Publication number: 20210010574
    Abstract: One embodiment of the present invention provides an actuator comprising: a housing having a mounting space part formed therein; a motor part provided inside the housing and generating power; a reduction gear part of which a plurality of gears respectively having an internal gear and an external gear sequentially engage with each other so as to transmit the power generated in the motor part; and a rod part engaging with the gear disposed at the last position, and linearly moving according to the rotation of the gear, wherein one of the plurality of gears is formed such that the internal gear and the external gear can rotate together or rotate independently.
    Type: Application
    Filed: March 4, 2019
    Publication date: January 14, 2021
    Inventors: Doo Myun LEE, Sung Joon KANG, In Suk RA, Jung Kyu LIM, Sung Woo KIM, Jae Hyuk LIM
  • Publication number: 20200116201
    Abstract: A slide unit includes a fixed rail fixed to a main body, and provided with a first accommodation space, a movable rail connected to a drawer body to allow the drawer body to be pulled out from and pushed into the main body, provided with a second accommodation space, and configured to be movable with respect to the fixed rail, an inner rail configured such that a first end thereof is inserted in the first accommodation space and a second end thereof is inserted in the second accommodation space, so as to allow the movable rail to be slidable with respect to the fixed rail, and a plurality of slide balls inserted in the first accommodation space to be disposed between the fixed rail and the inner rail, and inserted in the second accommodation space to be disposed between the movable rail and the inner rail.
    Type: Application
    Filed: November 23, 2018
    Publication date: April 16, 2020
    Inventors: Doo Myun LEE, Sung Joon KANG, Duc Hoi KIM, In Suk RA, Jung Kyu LIM, Sung Woo KIM, Jae Hyuk LIM