Patents by Inventor Tae Wha Choi

Tae Wha 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).

  • Patent number: 11925547
    Abstract: The present invention relates to a coating composition for an in-vivo implantable prosthesis including a photoinitiator, a crosslinking agent, and a phosphorylcholine (pc) monomer having an acrylate group, a method of coating an in-vivo implantable prosthesis using the coating composition, and a cosmetic prosthesis coated with the crosslinked polyphosphorylcholine. An in-vivo implantable prosthesis coated with crosslinked polyphosphorylcholine may be manufactured by a simple method of applying a coating composition including a photoinitiator, a crosslinking agent, and a phosphorylcholine (pc) monomer having an acrylate group according to the present invention, and then irradiating uv rays. The crosslinked polyphosphorylcholine coating may provide hydrophilicity for the surface and may also remarkably reduce adsorption of proteins and fibroblasts, which may cause side effects such as capsular contracture.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: March 12, 2024
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Tae Hyun Choi, Yan Lee, Ji Ung Park, Ji Yeon Ham, Hee Jin Kim, Suk Wha Kim, Hye Jeong Min
  • Patent number: 8669948
    Abstract: A mobile terminal includes a front housing made of a light-transmitting material and provided with edge parts, at least one of which is rounded or bent to be inclined which causes optical illusions so as to provide visual mystique. A display unit is provided under the front housing. A circuit substrate is provided under the display unit. A rear housing is provided to accommodate the display unit and the circuit substrate together with the front housing. A middle housing is provided between the front housing and the rear housing. The middle housing includes a receipt part to accommodate the display unit, and boundary parts connecting the receipt part and edge parts of the middle housing and disposed under the edge parts of the front housing. The edge part of the middle housing is protruded from the boundary part of the middle housing in a horizontal direction.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: March 11, 2014
    Assignee: LG Electronics Inc.
    Inventors: Chang Jae Kim, Sang Min Park, Seung Geun Lim, Hyun Lee, Kyoung Yong Kim, Tae Wha Choi, Young Tae Im, Sung Hee Han, Da Na Jung
  • Patent number: 8421913
    Abstract: A mobile terminal is disclosed, by which a user is facilitated to carry and use a terminal in a simple and easy way. According to the present invention, since a camera module is configured in a manner that a protective cover is provided not to a case but to a module body, it is advantageous in protecting a lens unit provided to the module body before installing the camera module at the case. While light passes through a protective cover, a protective cover physically isolates an inside of a camera module from an outside to prevent external particles from being introduced into the camera module. Therefore, it is advantageous in enhancing durability of the camera module. A loading portion is provided to a case to guide an installation position of a camera module. A separate cover is not added to the case. And, a protective cover of a camera module is directly exposed to outside. Therefore, accumulation of numerical value tolerance is barely generated and an assembly process is simplified.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: April 16, 2013
    Assignee: LG Electronics Inc.
    Inventors: Chang Jae Kim, Kyoung Yong Kim, Tae Wha Choi, Seung Geun Lim
  • Publication number: 20110069027
    Abstract: Disclosed herein is a mobile terminal which causes optical illusions at edge parts of a front housing so as to provide visual mystique.
    Type: Application
    Filed: September 17, 2010
    Publication date: March 24, 2011
    Inventors: Chang Jae Kim, Sang Min Park, Seung Geun Lim, Hyun Lee, Kyoung Yong Kim, Tae Wha Choi, Young Tae Im, Sung Hee Han, Da Na Jung
  • Publication number: 20110065480
    Abstract: A mobile terminal having a user input unit is discussed, by which various visual effects including a 3-dimensional effect can be provided to an exterior of the mobile terminal. The present invention includes a display unit, a control unit configured to control the display unit, a body configured to load the display unit, and a 3D (3-dimensional) member provided to at least one partial region of the body, including a lens sheet configured to arrange convex lenses in a grid form, and a transparent sheet provided under the lens sheet, wherein a pattern of a specific is printed on a position corresponding to a focal distance of the convex lenses of the lens sheet.
    Type: Application
    Filed: September 7, 2010
    Publication date: March 17, 2011
    Inventors: Chang Jae KIM, Jae Wook Lee, Tae Wha Choi, Sun Cheon Ok, Kyoung Yong Kim, Chang Bai Won, Seung Geun Lim
  • Publication number: 20110050989
    Abstract: A mobile terminal is disclosed, by which a user is facilitated to carry and use a terminal in a simple and easy way. According to the present invention, since a camera module is configured in a manner that a protective cover is provided not to a case but to a module body, it is advantageous in protecting a lens unit provided to the module body before installing the camera module at the case. While light passes through a protective cover, a protective cover physically isolates an inside of a camera module from an outside to prevent external particles from being introduced into the camera module. Therefore, it is advantageous in enhancing durability of the camera module. A loading portion is provided to a case to guide an installation position of a camera module. A separate cover is not added to the case. And, a protective cover of a camera module is directly exposed to outside. Therefore, accumulation of numerical value tolerance is barely generated and an assembly process is simplified.
    Type: Application
    Filed: September 2, 2010
    Publication date: March 3, 2011
    Inventors: Chang Jae KIM, Kyoung Yong Kim, Tae Wha Choi, Seung Geun Lim