Patents by Inventor Gerhard Dransmann

Gerhard Dransmann 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).

  • Recording material for the ink jet printing process
    Patent number: 6068733
    Abstract: A recording material for the ink jet printing process, comprising a paper support and an ink absorbing layer containing a pigment and a binding agent characterised in that the paper contains a mixture of softwood sulphate and eucalyptus cellulose, and has a wet stretch in the transverse direction<3.0%, a tearing length ratio longitudinal/transverse<2, a stiffness ratio longitudinal/transverse<2 and a density<0.8 g/cm.sup.3.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: May 30, 2000
    Assignee: Felix Schoeller Jr. Foto-und Spezialpapiere GmbH & Co. KG
    Inventors: Wolfgang Storbeck, Gerhard Dransmann
  • Printing material for ink-jet printing methods
    Patent number: 5911855
    Abstract: A printing material for ink-jet printing methods has a support and a dye-receiving coating, and an upper coating which includes finely divided particles of an inorganic pigment and/or filler exhibiting cationic charge centers is disposed on the dye-receiving coating.
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: June 15, 1999
    Assignee: Felix Schoeller jr. Foto-und Spezialpapeire GmbH & Co. KG
    Inventors: Gerhard Dransmann, Claudia Junger, Horst Westfal
  • Ink jet printing material
    Patent number: 5569529
    Abstract: Ink jet printing materials comprise a support and an ink receiving layer taining a pigment, a hydrophilic binder comprising polyvinyl alcohol, vinylpyrrolidone homopolymer and/or vinylpyrrolidone copolymer, and a water soluble compound containing aldehyde groups.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: October 29, 1996
    Assignee: Felix Schoeller Jr. Foto-und Spezial-papiere GmbH & Co. KG
    Inventors: Dieter Becker, Gerhard Dransmann, Jurgen Graumann
  • Ink jet printing material
    Patent number: 5494759
    Abstract: Ink jet printing materials comprise a support and an ink receiving layer containing a pigment, a hydrophilic binder comprising polyvinyl alcohol, vinylpyrrolidone homopolymer and/or vinylpyrrolidone copolymer, and a quaternary ammonium compound.
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: February 27, 1996
    Assignee: Felix Schoeller jr. Foto-und Spezialpapiere GmbH & Co. KG
    Inventors: David R. Williams, William L. Quartz, Klaus B. Kasper, Dieter Becker, Gerhard Dransmann