Patents by Inventor Karsten Benne

Karsten Benne 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).

  • Disc-shaped information carrier and method of manufacturing it
    Patent number: 4747093
    Abstract: The invention relates to disc-shaped information carriers which can be read optically in reflection and which contain an annular information zone which is bounded by a concentric inner zone and a concentric outer zone. The information carrier consists of a transparent substrate and has a readout side and opposite side (back) which at least in the information zone has a reflective coating. The light entering the outer zone from the readout side is reflected at least partially diffusely or absorbed by the information carrier. In this way, manufacturing defects such as, for example, inclusions, inhomogeneities etc. are at least partially masked or concealed.
    Type: Grant
    Filed: September 9, 1986
    Date of Patent: May 24, 1988
    Assignee: Polygram International Holding B.V.
    Inventors: Karsten Benne, Hermann Koop, Hans Schuddekopf
  • Disc-shaped information carrier and method of manufacturing it
    Patent number: 4726006
    Abstract: The invention relates to disc-shaped information carriers which can be read optically in reflection and which contain an annular information zone which is bounded by a concentric inner zone and a concentric outer zone. The information carrier consists of a transparent substrate and has a readout side and an opposite side (back) which at least in the information zone has a reflective coating. The light entering the outer zone from the readout side is reflected at least partially diffusely or absorbed by the information carrier. In this way, manufacturing defects such as, for example, inclusions, inhomogeneities etc. are at least partially masked or concealed.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: February 16, 1988
    Assignee: Polygram International Holding B.V.
    Inventors: Karsten Benne, Hermann Koop, Hans Schuddekopf