Patents by Inventor Dong Pil CHOI

Dong Pil 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: 12230924
    Abstract: A connector structure according to an embodiment of the present disclosure includes a second connector and a first connector coupled to the second connector. The first connector includes a first insulator, a first conductive connection terminal disposed on the first insulator, a second conductive connection terminal spaced apart from the first conductive connection terminal to form a single row structure on the first insulator together with the first conductive connection terminal, and a first barrier structure disposed between the first conductive connection terminal and the second conductive connection terminal on the first insulator.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: February 18, 2025
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Young Ju Kim, Byung Jin Choi, Han Sub Ryu, Na Yeon Kim, Dong Pil Park, Jae Hyun Lee
  • Patent number: 12228599
    Abstract: An apparatus for inspecting an antenna includes a stage including a ground on which an antenna device is disposed, an inspection board configured to be in contact with and connected to the antenna device, a connection maintaining unit for maintaining a contact and connection between the antenna device and the inspection board, and an inspection unit mounted or connected to the inspection board to inspect the antenna device.
    Type: Grant
    Filed: November 14, 2022
    Date of Patent: February 18, 2025
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Han Sub Ryu, Dong Pil Park, Byung Jin Choi
  • Patent number: 12207394
    Abstract: A circuit board according to an embodiment includes a core layer including a first region and a second region, and antenna power supply wirings disposed on the core layer over the first region and the second region. The antenna power supply wirings may include a first portion extending in a first direction in the first region, a second portion extending in a second direction in the first region, and a third portion extending in the first direction in the second region, and an interval between the neighboring second portions of the antenna power supply wirings is 3 times or less of an interval between the neighboring third portions of the antenna power supply wirings.
    Type: Grant
    Filed: February 27, 2023
    Date of Patent: January 21, 2025
    Assignees: DONGWOO FINE-CHEM CO., LTD., POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION
    Inventors: Byung Jin Choi, Young Ju Kim, Dong Pil Park, Won Bin Hong
  • Patent number: 10048433
    Abstract: A flat panel lighting apparatus, which makes it easy to replace a circuit board with LEDs thereon, is provided. The flat panel lighting apparatus includes a backplate, a driving unit, a light guide plate, a frame, a bracket, a circuit board, a connector and a cable connecting the driving unit and the circuit board. The frame with an opening portion is disposed at an outer periphery of the backplate and the light guide plate. The bracket is detachably coupled to the opening portion of the frame. The circuit board with light sources, is disposed in a space between the frame and the light guide plate, and is replaceable in a sliding type through the opening portion of the frame when the bracket is decoupled from the frame. The connector has a female terminal attached to the circuit board and a male terminal detachably coupled to the female terminal.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: August 14, 2018
    Assignee: R.F.TECH CO., LTD
    Inventors: Min Chul Kim, Jung Hoon Kim, Dong Pil Choi, Min Wook Kwon, Hyun Joong Kim, Jun Jea Park, Jun Young Ko
  • Publication number: 20170299801
    Abstract: A flat panel lighting apparatus, which makes it easy to replace a circuit board with LEDs thereon, is provided. The flat panel lighting apparatus includes a backplate, a driving unit, a light guide plate, a frame, a bracket, a circuit board, a connector and a cable connecting the driving unit and the circuit board. The frame with an opening portion is disposed at an outer periphery of the backplate and the light guide plate. The bracket is detachably coupled to the opening portion of the frame. The circuit board with light sources, is disposed in a space between the frame and the light guide plate, and is replaceable in a sliding type through the opening portion of the frame when the bracket is decoupled from the frame. The connector has a female terminal attached to the circuit board and a male terminal detachably coupled to the female terminal.
    Type: Application
    Filed: April 17, 2017
    Publication date: October 19, 2017
    Inventors: Min Chul KIM, Jung Hoon KIM, Dong Pil CHOI, Min Wook KWON, Hyun Joong KIM, Jun Jea PARK, Jun Young KO
  • Patent number: 8666061
    Abstract: A mobile device is provided. The mobile device includes a panel assembly, a cover window and an adhesive tape. The panel assembly displays images and the cover window is mounted onto the panel assembly. The cover window protects the panel assembly and detects touches that occur thereon. The adhesive tape forms an open hole at the central portion to separate the cover window and the panel assembly. The adhesive tape adheres the cover window to the edge portion of the panel assembly. The adhesive tape further includes an air path part that provides an air passage for communicating an air chamber with the open hole. The air chamber fills with air. The mobile device can display images without a pooling phenomenon, and reduce the chance of malfunction when the user touches the panel assembly via the cover window.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: March 4, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae Seung Choi, Hee Ryoul Choi, Dong Pil Choi, Hyun Woong Chung
  • Publication number: 20120106201
    Abstract: A mobile device is provided. The mobile device includes a panel assembly, a cover window and an adhesive tape. The panel assembly displays images and the cover window is mounted onto the panel assembly. The cover window protects the panel assembly and detects touches that occur thereon. The adhesive tape forms an open hole at the central portion to separate the cover window and the panel assembly. The adhesive tape adheres the cover window to the edge portion of the panel assembly. The adhesive tape further includes an air path part that provides an air passage for communicating an air chamber with the open hole. The air chamber fills with air. The mobile device can display images without a pooling phenomenon, and reduce the chance of malfunction when the user touches the panel assembly via the cover window.
    Type: Application
    Filed: October 24, 2011
    Publication date: May 3, 2012
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Jae Seung CHOI, Hee Ryoul CHOI, Dong Pil CHOI, Hyun Woong CHUNG