Patents by Inventor Tae-un Lim

Tae-un Lim 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).

  • Polyimide coating device having a polyimide supply status sensing device
    Patent number: 6042649
    Abstract: A polyimide coating device includes a bubble sensor for sensing the supply of a polyimide from a main polyimide storage tank. The coating device also includes an auxiliary storage tank filled with a predetermined amount of polyimide at all the times. A discharge pipe is connected to the auxiliary storage tank such that any gas introduced into a supply pipe between the main storage tank and the auxiliary storage tank is easily discharged prior to the polyimide entering a reaction chamber.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: March 28, 2000
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung-suu Song, Tae-sin Park, Tae-un Lim, Sung-il Jung