Patents by Inventor Kyoo-Heung Yoon

Kyoo-Heung Yoon 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).

  • Method for manufacturing footwear last, and footwear last manufactured by the method
    Patent number: 8968633
    Abstract: Provided is a footwear last, being of a structure where its interior is hollow. The method includes steps of installing a parison for manufacturing a plastic vessel between left/right molds for manufacturing the footwear last, with the left/right molds opened; injecting a last manufacturing material into a tube of the parison; blowing air while closing the left/right molds; molding the material in a temperature of about 400 C to 70° C. and under an injection pressure of about 600 kg/cm2 to 1400 kg/cm2; and completing the last whose interior is hollow.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: March 3, 2015
    Assignee: NIKE, Inc.
    Inventors: Kyoo-Heung Yoon, Yong-Joo Chon, Sin-Woo Kim, Kil-Po Kim, Won-Kwon Lee
  • Method for Manufacturing Footwear Last, and Footwear Last Manufactured by the Method
    Publication number: 20110030154
    Abstract: Provided is a footwear last, being of a structure where its interior is hollow. The method includes steps of installing a parison for manufacturing a plastic vessel between left/right molds for manufacturing the footwear last, with the left/right molds opened; injecting a last manufacturing material into a tube of the parison; blowing air while closing the left/right molds; molding the material in a temperature of about 400 C to 70° C. and under an injection pressure of about 600 kg/cm2 to 1400 kg/cm2; and completing the last whose interior is hollow.
    Type: Application
    Filed: June 15, 2010
    Publication date: February 10, 2011
    Applicant: Nike, Inc.
    Inventors: Kyoo-Heung Yoon, Yong-Joo Chon, Sin-Woo Kim, Kil-Po Kim, Won-Kwon Lee