Patents by Inventor Michael Geibler

Michael Geibler 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: 4956216
    Abstract: In an optical recording medium, for an audio-video or ROM compact disc comprising a pitted translucent base material and a layer (9) of a corrosion resistant metal or combination of metals from the groups 4N, 5N, 7N or 8N of the periodic table of elements is disclosed. For example NiCr can Be Applied onto the surface having the pits (7), thereby providing good adhesion, reflecting light and providing printable surface and not requiring any further coating such as a protective lacquer. Also, in the event that a gold-colored glossy layer is necessary, a CuBe layer can be sputtered onto the substrate (8).
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: September 11, 1990
    Assignee: Leybold Aktiengesellschaft
    Inventors: Alfons Hausler, Rainer Ludwig, Michael Geibler, Michael Jung