Patents by Inventor Seungah Cho

Seungah 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).

  • Ferrite green sheet, sintered ferrite sheet, ferrite composite sheet comprising the same, and conductive loop antenna module
    Patent number: 9847577
    Abstract: Disclosed are a ferrite green sheet comprising a pattern formed in a top surface of the ferrite green sheet, a sintered ferrite sheet, a ferrite composite sheet comprising the same, and a conductive loop antenna module. The pattern comprises a plurality of grooves, each groove has a width W and a rounded shape bottom having a radius of curvature of R, wherein a ratio of W to R (W:R) is in the range of 1:0.1 to 1:0.5.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: December 19, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Eun-Kwang Hur, Jung-Ju Suh, Seungah Cho, Suk-Won Choi
  • FERRITE GREEN SHEET, SINTERED FERRITE SHEET, FERRITE COMPOSITE SHEET COMPRISING THE SAME, AND CONDUCTIVE LOOP ANTENNA MODULE
    Publication number: 20150349424
    Abstract: Disclosed are a ferrite green sheet comprising a pattern formed in a top surface of the ferrite green sheet, a sintered ferrite sheet, a ferrite composite sheet comprising the same, and a conductive loop antenna module. The pattern comprises a plurality of grooves, each groove has a width W and a rounded shape bottom having a radius of curvature of R, wherein a ratio of W to R (W:R) is in the range of 1:0.1 to 1:0.5.
    Type: Application
    Filed: December 2, 2013
    Publication date: December 3, 2015
    Inventors: Eun-Kwang Hur, Jung-Ju Suh, Seungah Cho, Suk-Won Choi