Patents by Inventor Gee-do Kim

Gee-do 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).

  • Patent number: 5890367
    Abstract: An air conditioning system for a semiconductor clean room includes a chemical filter between an air conditioner including a humidifier and a ULPA filter of the clean room, for ionizing chemical impurities using moisture supplied from the humidifier and then adsorbing the ionized chemical impurities by using the chemical filter. The chemical filter is installed downstream of the humidifier, which applies phosphoric acid for the prevention of scale-formation. This downstream location allows the chemical filter to prevent the phosphoric acid from being included in the fresh air as a new chemical impurity, which makes regulation of temperature and humidity of the air possible without having to use a special and expensive pure steam system.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: April 6, 1999
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nam-hee You, Jung-sung Hwang, Gee-do Kim, Young-jin Han