Patents by Inventor Kyoung Hwan Cho

Kyoung Hwan Cho 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).

  • Magnetic and dielectric composite electronic device
    Patent number: 7835135
    Abstract: There is a provided a magnetic and dielectric composite electronic device, comprising: a first region with a plurality of magnetic material sheets being layered; a second region with a plurality of dielectric material sheets being layered; and a third region as a middle layer interposed between the first region and the second region, including a Zn—Ti based material to prevent diffusion of the materials during co-firing of the first region and the second region, and the first region, the second region and the third region are integrally formed in a single body. In accordance with the present invention, the low pass filter including the function of the varistor is realized to obtain the EMI function and the ESD control effect.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: November 16, 2010
    Assignee: Ceratech Corporation
    Inventors: Kyoung Hwan Cho, Jung Ik Song, Jeong In Choi
  • MAGNETIC AND DIELECTRIC COMPOSITE ELECTRONIC DEVICE
    Publication number: 20090097219
    Abstract: There is a provided a magnetic and dielectric composite electronic device, comprising: a first region with a plurality of magnetic material sheets being layered; a second region with a plurality of dielectric material sheets being layered; and a third region as a middle layer interposed between the first region and the second region, including a Zn—Ti based material to prevent diffusion of the materials during co-firing of the first region and the second region, and the first region, the second region and the third region are integrally formed in a single body. In accordance with the present invention, the low pass filter including the function of the varistor is realized to obtain the EMI function and the ESD control effect.
    Type: Application
    Filed: February 29, 2008
    Publication date: April 16, 2009
    Applicant: CERATECH CORPORATION
    Inventors: Kyoung Hwan Cho, Jung Ik Song, Jeong In Choi