Patents by Inventor Andries R. Miedema

Andries R. Miedema 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: 5104848
    Abstract: A device comprising semiconductor elements and conductor tracks of an oxidic superconducting material, electrically conductive connections being formed between semiconductor elements and conductor tracks, is provided with an electrically conductive antidiffusion layer between the semiconductor elements and the conductor tracks. The antidiffusion layer is composed of an amorphous alloy having the composition A.sub.x E.sub.1-x, wherein A is selected from one or more of the elements Zr, Nb, Mo, Ru, Rh, Pd, Hf, Ta, W, Re, Os, Ir and Pt, wherein E is selected from one or more of the elements B, Si, Al, Ga and Ge, and wherein x has a value of from 0.7 to 0.95.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: April 14, 1992
    Assignee: U.S. Philips Corporation
    Inventors: Andries R. Miedema, Gerrit J. Van Der Kolk, Johan P. W. B. Duchateau
  • Patent number: 4948029
    Abstract: Two bodies are provided with mutually different metal layers. The combination of wringing in contact of the metal surfaces and low-temperature interdiffusion provides a strong bond between the two bodies.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: August 14, 1990
    Assignee: U.S. Philips Corporation
    Inventors: Jan Haisma, Andries R. Miedema
  • Patent number: 4490264
    Abstract: Bearings can be lubricated with ductile metal films. It has been found that the service life of such lubricating films can be improved by the use of metals which are alloyed with a component having a higher surface tension than the metal.
    Type: Grant
    Filed: April 5, 1982
    Date of Patent: December 25, 1984
    Assignee: U.S. Philips Corporation
    Inventors: Jan Gerkema, Andries R. Miedema