Patents by Inventor Changgyu Yoo

Changgyu Yoo 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: 8475697
    Abstract: A transfer molding box and a method to produce a plurality of brushes with an applicator is provided. The transfer molding box includes a pressing plate 30, an upper molding box 10 where at least a brush molding groove is formed and a lower molding box 20 where at least another brush molding groove corresponding to the brush molding groove of the upper molding box is formed and placed under the upper molding box 10. A wick 1 is settled in horizontal direction between the brush molding groove of the upper molding box and the brush molding groove of the lower molding box. Further material inserting portion 11 and a projected pressing portion 31 which has corresponding shape to the material inserting portion 11 are provided at the top of the upper molding box 10 and at the top of the lower molding box 20, respectively.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: July 2, 2013
    Assignee: AMOREPACIFIC Corporation
    Inventors: Haewon Jeong, Hakchan Kim, Jooho Kim, Changgyu Yoo, Jiyoung Park
  • Publication number: 20100258972
    Abstract: A transfer molding box and a method to produce a plurality of brushes with an applicator is provided. The transfer molding box includes a pressing plate 30, an upper molding box 10 where at least a brush molding groove is formed and a lower molding box 20 where at least another brush molding groove corresponding to the brush molding groove of the upper molding box is formed and placed under the upper molding box 10. A wick 1 is settled in horizontal direction between the brush molding groove of the upper molding box and the brush molding groove of the lower molding box. Further material inserting portion 11 and a projected pressing portion 31 which has corresponding shape to the material inserting portion 11 are provided at the top of the upper molding box 10 and at the top of the lower molding box 20, respectively.
    Type: Application
    Filed: June 13, 2007
    Publication date: October 14, 2010
    Inventors: Haewon Jeong, Hakchan Kim, Jooho Kim, Changgyu Yoo, Jiyoung Park
  • Publication number: 20100212097
    Abstract: The present invention relates to a mascara brush for the make-up of eyelash, more particularly, to a mascara brush which the disk-type comb tooth is formed to one side to be continued and repeated and a rubber hair is formed to another side in all directions. The mascara brush for the make-up of eyelash according to the present invention of which is comprised, forming a disc-type plate comb hair to one side to be separated and repeated, forming a rubber hair to another side against the plate comb tooth to be repeated in all directions after dividing into two along with the length direction of a brush core, which is connected with a brush stick, is provided.
    Type: Application
    Filed: October 6, 2008
    Publication date: August 26, 2010
    Inventors: Haewon Jeong, Hakchan Kim, Jooho Kim, Changgyu Yoo, Jiyoung Park