Patents by Inventor Karin Hasenruck

Karin Hasenruck 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).

  • Use of light-absorbing compounds in the information layer of optical data carriers, and optical data carriers
    Publication number: 20030175616
    Abstract: The invention relates to a write-once optical data carrier in which organic and/or inorganic light-absorbing compounds are used as the information layer, especially for high-density optical data carriers which function with a blue laser in the wavelength range of 360-460 nm. The invention also relates to the application of the above-mentioned light-absorbing compound to a suitable substrate (especially polycarbonate), e.g. by spin coating.
    Type: Application
    Filed: October 2, 2002
    Publication date: September 18, 2003
    Inventors: Horst Berneth, Friedrich-Karl Bruder, Karin Hasenruck