Patents by Inventor Seyoon Lee

Seyoon Lee 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).

  • Porous, carbon-containing preform and process for producing the same
    Patent number: 8778249
    Abstract: There is provided a porous, carbon-containing preform, including a body (CL) of unidirectional carbon fiber fabrics (C1), and a friction layer (FL) of randomly-arranged-carbon-fiber fabrics (F1), combined with the body (CL) by a needle-punching operation. According to the present invention, it is by the needle-punching operation that the friction layer (FL) of the randomly-arranged-carbon fiber fabric (F1) is formed on the body (CL) of the unidirectional carbon fiber fabric (C1) and the friction layer (FL) of the randomly-arranged-carbon-fiber (F1) is cross-linked to the body (CL) of the unidirectional carbon fiber fabric (C1) in producing the porous, carbon-containing preform.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: July 15, 2014
    Assignee: DACC Co., Ltd.
    Inventors: Chaewook Cho, Hyunkyu Shin, Daehyun Cho, Jonghyun Park, Seyoon Lee
  • POROUS, CARBON-CONTAINING PREFORM AND PROCESS FOR PRODUCING THE SAME
    Publication number: 20120156460
    Abstract: There is provided a porous, carbon-containing preform, including a body (CL) of unidirectional carbon fiber fabrics (C1), and a friction layer (FL) of randomly-arranged-carbon-fiber fabrics (F1), combined with the body (CL) by a needle-punching operation. According to the present invention, it is by the needle-punching operation that the friction layer (FL) of the randomly-arranged-carbon fiber fabric (F1) is formed on the body (CL) of the unidirectional carbon fiber fabric (C1) and the friction layer (FL) of the randomly-arranged-carbon-fiber (F1) is cross-linked to the body (CL) of the unidirectional carbon fiber fabric (C1) in producing the porous, carbon-containing preform.
    Type: Application
    Filed: December 14, 2009
    Publication date: June 21, 2012
    Applicant: DACC CO., LTD.
    Inventors: Chaewook Cho, Hyunkyu Shin, Daehyun Cho, Jonghyun Park, Seyoon Lee