Patents by Inventor Han-Seok Kim

Han-Seok Kim 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).

  • Circular polarization generating system for microwave oven
    Patent number: 6097018
    Abstract: A microwave oven includes a magnetron for generating electromagnetic wave energy, a waveguide for guiding and directing the electromagnetic wave energy into a cavity body defining a cooking chamber, and an antenna for radiating the electromagnetic wave energy generated by the magnetron into the waveguide. The waveguide includes a first opening for uniformly dispersing the electromagnetic wave energy into the cooking chamber, a second opening for uniformly dispersing the electromagnetic wave energy into the cooking chamber, and a short circuit for providing a short surface to the antenna. The first opening is formed on a portion of the waveguide which contacts the cavity body and extends along a longitudinal direction. The second opening is spaced away from and having a predetermined angle with respect to the first opening.
    Type: Grant
    Filed: January 7, 1999
    Date of Patent: August 1, 2000
    Assignee: LG Electronics Inc.
    Inventors: Hyun-Jung Kim, Hyung-Joo Kang, Han-Seok Kim, Sang-Jin Oh, Sang-Jin Kim