Patents by Inventor Koshin Cho

Koshin 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: 8142884
    Abstract: The present invention provides a release film which has a release layer on a film substrate, which has excellent long-term preservation stability and yet maintains a stripping performance of the release film, which serves to make inspection for foreign materials easy, and which provides excellent design effect when a print layer is formed. The release film has average luminous reflectance of the release film on the surface of the side on which the release layer is formed being in the range of 0.5-2.5%, spectral reflectance curve of the release film surface on which the release layer is formed having a local minimal value and no local maximal value in the wavelength region in the range of 400-800 nm, reflection hue of the release film on the side on which the release layer is formed satisfying both ?8?a*?8 and ?16?b*?8 in the L*a*b* color coordinate system.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: March 27, 2012
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Toshiaki Yoshihara, Satoshi Iwata, Tsuguki Nishihara, Koshin Cho
  • Publication number: 20110020622
    Abstract: The present invention provides a release film which has a release layer on a film substrate, which has excellent long-term preservation stability and yet maintains a stripping performance of the release film, which serves to make inspection for foreign materials easy, and which provides excellent design effect when a print layer is formed. The release film has average luminous reflectance of the release film on the surface of the side on which the release layer is formed being in the range of 0.5-2.5%, spectral reflectance curve of the release film surface on which the release layer is formed having a local minimal value and no local maximal value in the wavelength region in the range of 400-800 nm, reflection hue of the release film on the side on which the release layer is formed satisfying both ?8?a*?8 and ?16?b*?8 in the L*a*b* color coordinate system.
    Type: Application
    Filed: September 24, 2010
    Publication date: January 27, 2011
    Applicant: Toppan Printing Co., Ltd.
    Inventors: Toshiaki Yoshihara, Satoshi Iwata, Tsuguki Nishihara, Koshin Cho