Patents by Inventor Dok-hwan Cha

Dok-hwan Cha 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).

  • Electronic device having electrostatic discharge function
    Patent number: 8000104
    Abstract: An electronic device including a housing, a main circuit substrate disposed in one side of the housing; a connector unit which is disposed in an other side of the housing and is electrically connected to the main circuit substrate, and a discharging sheet disposed in the one side of the housing and is conductively connected to the connector unit to discharge static electricity generated in the connector unit is provided.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: August 16, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chul-kwi Kim, Koang-sik Lee, Dok-hwan Cha, Pil-sub Kim, Hyung-keun Song, Ba-da Kang
  • Protrudable connector structure for electronic device
    Patent number: 7713075
    Abstract: A protrudable connector structure that includes a first frame having a first guiding hole; a second frame having a push button and a second guiding hole that overlaps with the first guiding hole when the push button is pressed; a pin inserted into the first guiding hole and the second guiding hole so that the pin moves along the first and second guiding holes; a connector member coupled to the pin; and a link that presses the pin, wherein when the pin is located in a first locking groove portion of the second guiding hole, the connector member is locked so as not to protrude outside of the housing, and when the pin is located in a second locking groove portion of the second guiding hole, the connector member is locked so as not to be inserted into the housing.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: May 11, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-kwon Choi, Duck-yong Lee, Dok-hwan Cha
  • ELECTRONIC DEVICE HAVING ELECTROSTATIC DISCHARGE FUNCTION
    Publication number: 20090027816
    Abstract: An electronic device including a housing, a main circuit substrate disposed in one side of the housing; a connector unit which is disposed in an other side of the housing and is electrically connected to the main circuit substrate, and a discharging sheet disposed in the one side of the housing and is conductively connected to the connector unit to discharge static electricity generated in the connector unit is provided.
    Type: Application
    Filed: February 7, 2008
    Publication date: January 29, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chul-kwi Kim, Koang-sik Lee, Dok-hwan Cha, Pil-sub Kim, Hyung-keun Song, Ba-da Kang
  • PROTRUDABLE CONNECTOR STRUCTURE FOR ELECTRONIC DEVICE
    Publication number: 20080166896
    Abstract: A protrudable connector structure that includes a first frame having a first guiding hole; a second frame having a push button and a second guiding hole that overlaps with the first guiding hole when the push button is pressed; a pin inserted into the first guiding hole and the second guiding hole so that the pin moves along the first and second guiding holes; a connector member coupled to the pin; and a link that presses the pin, wherein when the pin is located in a first locking groove portion of the second guiding hole, the connector member is locked so as not to protrude outside of the housing, and when the pin is located in a second locking groove portion of the second guiding hole, the connector member is locked so as not to be inserted into the housing.
    Type: Application
    Filed: July 27, 2007
    Publication date: July 10, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Seung-kwon Choi, Duck-yong Lee, Dok-hwan Cha