Patents by Inventor Lee Kyong-keun

Lee Kyong-keun 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).

  • Power supply apparatus for magnetron driving
    Patent number: 5224027
    Abstract: In a power supply apparatus for magnetron driving, as abrupt current change occurs under loaded power supplies of 3.7 K V.-4.1 K V, the power supply detects the currents of 3.7 K V-4.1 K V and protects the magnetron from the overcurrents by controlling output voltages through feeding back the voltages according to currents and by outputting stable power supplies.
    Type: Grant
    Filed: May 15, 1992
    Date of Patent: June 29, 1993
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Lee Kyong-keun