Patents by Inventor Sung Jin Han

Sung Jin 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).

  • Patent number: 5951904
    Abstract: The induction cooking apparatus includes an input filter for filtering supplied power, a first inverter module having a first working coil, a second inverter module having a second working coil, and a common switching section. The common switching section and the first and second inverter modules are connected in series with the input filter, and the first and second inverter modules operate cooperatively with the common switching section to energize the first and second working coils.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: September 14, 1999
    Assignee: LG Electronics, Inc.
    Inventors: Yong-chae Jung, Sung-jin Han, Hyo-sik Jeon
  • Patent number: 5408191
    Abstract: An input buffer particularly suitable for a semiconductor device includes a CMOS inverter for buffering an input signal which varies between first and second logic levels and producing an output signal at an output node thereof which is the logical inverse of the input signal, and a compensation circuit for compensating the output signal for fluctuations thereof which are due to fluctuations of a supply voltage. The CMOS inverter preferably includes a pull-up MOS transistor having a gate, a first electrode coupled to a supply voltage, and a second electrode, and a pull-down MOS transistor having a gate, a first electrode coupled to a reference voltage, and a second electrode.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: April 18, 1995
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-jin Han, Chung-keun Kwak