Patents by Inventor Hong-Lae Cho

Hong-Lae Cho 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: 7455733
    Abstract: There is provided a fluorescent material coating apparatus for a fluorescent lamp. The fluorescent material coating apparatus includes a cassette on which a plurality of glass tubes are detachably mounted, a delivery member having a delivery chamber communicating with first ends of the glass tubes, a negative pressure generating unit for allowing fluorescent solution to be drawn into the glass tubes by generating a negative pressure in the glass tubes communicating with the delivery chamber by lowering the pressure of the delivery chamber, a dry air supplying unit for supplying dry air to the delivery chamber to dry the fluorescent solution applied on inner surfaces of the glass tubes, a solution tank containing the fluorescent solution and disposed below the glass tubes mounted on the cassette, and a moving unit for allowing lower end portions of the glass tubes mounted in the delivery chamber to be dipped into the fluorescent solution contained in the solution tank.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: November 25, 2008
    Assignee: DMS Co., Ltd.
    Inventors: Young-Chul Lee, Dong-Gil Kim, Sung-Jung Kim, Jeon-Gu Kim, Hong-Lae Cho
  • Publication number: 20060198947
    Abstract: There is provided a fluorescent material coating apparatus for a fluorescent lamp. The fluorescent material coating apparatus includes a cassette on which a plurality of glass tubes are detachably mounted, a delivery member having a delivery chamber communicating with first ends of the glass tubes, a negative pressure generating unit for allowing fluorescent solution to be drawn into the glass tubes by generating a negative pressure in the glass tubes communicating with the delivery chamber by lowering the pressure of the delivery chamber, a dry air supplying unit for supplying dry air to the delivery chamber to dry the fluorescent solution applied on inner surfaces of the glass tubes, a solution tank containing the fluorescent solution and disposed below the glass tubes mounted on the cassette, and a moving unit for allowing lower end portions of the glass tubes mounted in the delivery chamber to be dipped into the fluorescent solution contained in the solution tank.
    Type: Application
    Filed: February 27, 2006
    Publication date: September 7, 2006
    Inventors: Young-Chul Lee, Dong-Gil Kim, Sung-Jung Kim, Jeon-Gu Kim, Hong-Lae Cho