Patents by Inventor Ronald W. Schroeder

Ronald W. Schroeder 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).

  • Collinear terminated transmission line structure
    Patent number: 5617298
    Abstract: A collinear terminated transmission line structure and method for producing same is presented. The structure comprises a plurality of conductors electrically connected to a plurality of resistors. A predetermined spacing between each of the plurality of conductors ranges from 2 mils to 7 mils. Greater spacings are easily accomplished with the present method. The method comprises the steps of screen-printing a resistor swath onto a substrate, the swath being adjacent to one end of the plurality of conductors. After the substrate is dipped into a solution, the resistor swath is laser trimmed to form the plurality of resistors. The substrate is then rinsed with warm water to remove the solution. The solution can be a poly-vinyl alcohol and isopropyl alcohol mixture.
    Type: Grant
    Filed: December 20, 1995
    Date of Patent: April 1, 1997
    Assignee: Hewlett-Packard Company
    Inventors: John F. Casey, Ronald W. Schroeder, Lewis R. Dove, Philip J. Yearsley
  • Method of manufacturing collinear terminated transmission line structure with thick film circuitry
    Patent number: 5504986
    Abstract: A collinear terminated transmission line structure and method for producing same is presented. The structure comprises a plurality of conductors electrically connected to a plurality of resistors. A predetermined spacing between each of the plurality of conductors ranges from 2 mils to 7 mils. Greater spacings are easily accomplished with the present method. The method comprises the steps of screen-printing a resistor swath onto a substrate, the swath being adjacent to one end of the plurality of conductors. After the substrate is dipped into a solution, the resistor swath is laser trimmed to form the plurality of resistors. The substrate is then rinsed with warm water to remove the solution. The solution can be a poly-vinyl alcohol and isopropyl alcohol mixture.
    Type: Grant
    Filed: March 2, 1995
    Date of Patent: April 9, 1996
    Assignee: Hewlett-Packard Company
    Inventors: John F. Casey, Ronald W. Schroeder, Lewis R. Dove, Philip J. Yearsley