Patents by Inventor Hee-moon Jung

Hee-moon Jung 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).

  • Two-axis driving electromagnetic micro-actuator
    Patent number: 7880571
    Abstract: Provided is a two-axis driving electromagnetic actuator that includes a stage that is operative to be actuated about a first axis; an inner frame that that is disposed outside the stage and supports the stage by the first axis; an external frame that is disposed outside the inner frame and supports the inner frame by a second axis which is perpendicular to the first axis; a magnet that provides an electric field between the first axis and the second axis; a first driving coil that is formed on the inner frame and to which a first signal that actuates the stage in a direction of the second axis is applied; and a second driving coil that is formed on the inner frame and to which a second signal that actuates the stage and the inner frame in a direction of the first axis is applied, wherein the first driving coil and the second driving coil are electrically separated from each other.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: February 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-chul Ko, Jin-woo Cho, Woo-hyek Choi, Hee-moon Jung
  • TWO-AXIS DRIVING ELECTROMAGNETIC MICRO-ACTUATOR
    Publication number: 20080238592
    Abstract: Provided is a two-axis driving electromagnetic actuator that includes a stage that is operative to be actuated about a first axis; an inner frame that that is disposed outside the stage and supports the stage by the first axis; an external frame that is disposed outside the inner frame and supports the inner frame by a second axis which is perpendicular to the first axis; a magnet that provides an electric field between the first axis and the second axis; a first driving coil that is formed on the inner frame and to which a first signal that actuates the stage in a direction of the second axis is applied; and a second driving coil that is formed on the inner frame and to which a second signal that actuates the stage and the inner frame in a direction of the first axis is applied, wherein the first driving coil and the second driving coil are electrically separated from each other.
    Type: Application
    Filed: September 27, 2007
    Publication date: October 2, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Young-chul KO, Jin-woo CHO, Woo-hyek CHOI, Hee-moon JUNG