Patents by Inventor Myung Won Ahn

Myung Won Ahn 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).

  • Memory-type recording/playback device used by fitting a milk bottle
    Patent number: 5489893
    Abstract: The present invention provides a recording/playback circuit able to record voice or sound. The device is installed in the inside of a cylindrical case in which a speaker and a recording microphone are installed on the lower surface thereof. A press button-type switch is installed on an upper surface of the case and used as a playback button when a bottle is fitted in the inside of the cylindrical case and the press button type playback button turns on. Audio signals stored in a memory element are played back and necessary information is recorded by a recording button installed at the lower section. In particular, the cylindrical case is formed so as to accommodate the lower part of the bottle in use.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: February 6, 1996
    Inventors: Young Sun Jo, Myung Won Ahn, Sang Ki Lee