Patents by Inventor Gerold Radke

Gerold Radke 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).

  • Print head for ink-jet printing and a method for making print heads
    Patent number: 6054011
    Abstract: A print head for ink-jet printing. The print head includes an orifice plate with a layer of metal bonded thereto, an ink barrier layer, and an adhesion promoter located between the metal layer and the barrier. The adhesion promoter bonds the metal layer to the barrier layer. Adhesion promoters include organosilane, polyacrylic acid, or polymethylacrylic acid. In a process for making a print head, an adhesion promoter is applied to the orifice plate and the orifice plate, the barrier layer, and the adhesion promoter are bonded together by applying pressure and heat.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: April 25, 2000
    Assignee: Hewlett-Packard Company
    Inventors: Gerold Radke, Leonard A. Rosi
  • Print head for ink-jet printing a method for making print heads
    Patent number: 5859654
    Abstract: A print head for ink-jet printing. The print head includes an orifice plate with a layer of metal bonded thereto, an ink barrier layer, and an adhesion promoter located between the metal layer and the barrier. The adhesion promoter bonds the metal layer to the barrier layer. Adhesion promoters include organosilane, polyacrylic acid, or polymethylacrylic acid. In a process for making a print head, an adhesion promoter is applied to the orifice plate and the orifice plate, the barrier layer, and the adhesion promoter are bonded together by applying pressure and heat.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: January 12, 1999
    Assignee: Hewlett-Packard Company
    Inventors: Gerold Radke, Leonard A. Rosi