Patents by Inventor Kyoungku Han

Kyoungku Han 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).

  • Casing of condenser microphone
    Patent number: 7620197
    Abstract: The casing of a condenser microphone in accordance with the present invention comprises a groove at a bottom surface of the casing along an outer circumference of the bottom surface for preventing a deformation of a component during a curling process of an open end portion of the casing, wherein the casing for housing the component therein consists of a metallic material, the casing having an acoustic hole at the bottom surface thereof, the open end portion of the casing being at an opposite side of the bottom surface.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: November 17, 2009
    Assignee: BSE Co., Ltd.
    Inventors: Kyoungku Han, Sukjin Kim, Kyunghwan Kang
  • Casing of condenser microphone
    Publication number: 20060262953
    Abstract: The casing of a condenser microphone in accordance with the present invention comprises a groove at a bottom surface of the casing along an outer circumference of the bottom surface for preventing a deformation of a component during a curling process of an open end portion of the casing, wherein the casing for housing the component therein consists of a metallic material, the casing having an acoustic hole at the bottom surface thereof, the open end portion of the casing being at an opposite side of the bottom surface.
    Type: Application
    Filed: February 8, 2006
    Publication date: November 23, 2006
    Inventors: Kyoungku Han, Sukjin Kim, Kyunghwan Kang
  • Dual base of an electret condenser microphone and electret condenser microphone using the same
    Publication number: 20060256984
    Abstract: The present invention describes an electret condenser microphone having a dual base structure wherein a metal ring and an insulation ring are bonded. The electret condenser microphone includes a metal ring having a shape of a spool wherein a center portion is concaved and end portions extrude, an insulation ring surrounding the center portion and extruding with respect to the extruding end portions of the metal ring to form an insulation space between a casing and the metal ring.
    Type: Application
    Filed: April 14, 2006
    Publication date: November 16, 2006
    Inventors: Chungdam Song, Kyunghwan Kang, Kyoungku Han