Patents by Inventor Otto Bach

Otto Bach 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).

  • Tube target
    Patent number: 6793784
    Abstract: A tube target for cathode sputtering installations, and a process for producing a cylindrical hollow body for such a tube target and its use. The problem of providing a simple and low-cost process for producing a cylindrical hollow body for a tube target and of providing a cylindrical hollow body with a uniform, fine-grained structure is solved by the cylindrical hollow body being produced by centrifugal casting of a melt.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: September 21, 2004
    Assignee: W. C. Heraeus GmbH & Co. KG
    Inventors: Otto Bach, David Lupton, Hans Bohmeier, Ralf Heck
  • Method of producing a tantalum stock material of high ductility
    Patent number: 4844746
    Abstract: A method is described for the production of a ductile tantalum stock material for high-speed deformation use. A bar-shaped body is made from directly reduced tantalum powder of a given purity and is remelted repeatedly as a consumable electrode in an electron beam furnace. The obtained ingot is shaped into a slab which, after being machined to a smooth surface, is further worked to produce the stock material. At least one heat treatment under vacuum is included in the process of making the stock material.
    Type: Grant
    Filed: March 23, 1988
    Date of Patent: July 4, 1989
    Assignee: W. C. Heraeus GmbH
    Inventors: Michael Hormann, Otto Bach