Patents by Inventor Seoun Young Ahn

Seoun Young Ahn 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).

  • Coating layer for cutting tools
    Patent number: 8999532
    Abstract: Provided is a coating layer for cutting tools, as a hard coating layer stacked and formed in the sequence of a TiN layer, a TiCN layer, a bonding layer, an alumina (Al2O3) layer, and a cover layer from the bottom by using a chemical vapor deposition (CVD) method on a parent material, able to improve cutting performance, because surface residual stress of the coating layer may be maintained in a compressive stress state by adjusting a composition of the cover layer without using a separate additional process, such as a blasting operation, or a mixed process of CVD and physical vapor deposition (PVD), and simultaneously the cover layer may also be used as a wear-resistant layer.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: April 7, 2015
    Assignee: Korloy Inc.
    Inventors: Seong Woo Cho, Han Sung Kim, Dong Youl Lee, Dae Suk Han, Young Ho Seo, Seoun Young Ahn, Dong Bok Park
  • COATING LAYER FOR CUTTING TOOLS
    Publication number: 20130149527
    Abstract: Provided is a coating layer for cutting tools, as a hard coating layer stacked and formed in the sequence of a TiN layer, a TiCN layer, a bonding layer, an alumina (Al2O3) layer, and a cover layer from the bottom by using a chemical vapor deposition (CVD) method on a parent material, able to improve cutting performance, because surface residual stress of the coating layer may be maintained in a compressive stress state by adjusting a composition of the cover layer without using a separate additional process, such as a blasting operation, or a mixed process of CVD and physical vapor deposition (PVD), and simultaneously the cover layer may also be used as a wear-resistant layer.
    Type: Application
    Filed: July 8, 2011
    Publication date: June 13, 2013
    Applicant: Korloy Inc.
    Inventors: Seong Woo Cho, Han Sung Kim, Dong youl Lee, Dae Suk Han, Young Ho Seo, Seoun Young Ahn, Dong Bok Park