Patents by Inventor Donald J. Mikalsen

Donald J. Mikalsen 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).

  • Electronic devices having metallurgies containing copper-semiconductor compounds
    Patent number: 5633047
    Abstract: Silicon and germanium containing materials are used at surface of conductors in electronic devices. Solder can be fluxlessly bonded and wires can be wire bonded to these surfaces. These material are used as a surface coating for lead frames for packaging integrated circuit chips. These materials can be decal transferred onto conductor surfaces or electrolessly or electrolytically disposed thereon.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: May 27, 1997
    Assignee: International Business Machines Corporation
    Inventors: Michael J. Brady, Curtis E. Farrell, Sung K. Kang, Jeffrey R. Marino, Donald J. Mikalsen, Paul A. Moskowitz, Eugene J. O'Sullivan, Terrence R. O'Toole, Sampath Purushothaman, Sheldon C. Rieley, George F. Walker
  • Force sensitive transducer for use in a computer keyboard
    Patent number: 5489900
    Abstract: A strain sensitive columnar transducer for a data entry keyboard contains a column upstanding from the keyboard. Strain sensitive orthogonally oriented patterns are formed on a single flexible planar sheet which is sliced to place each of the patterns on a separate tab. The planar sheet is forced over the column so that the patterns lie up against the sides of the column to measure force exerted on the column.
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: February 6, 1996
    Assignee: International Business Machines Corporation
    Inventors: Matthew F. Cali, Jerome J. Cuomo, Donald J. Mikalsen, Joseph D. Rutledge, Edwin J. Selker