Patents by Inventor Roelof Hendrik Everhardus

Roelof Hendrik Everhardus 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: 7084190
    Abstract: A meltable ink composition, which is solid at room temperature and liquid at elevated temperature, which ink composition is suitable for use in an inkjet printer, the ink composition being provided with a resin which contains a compound which is the reaction product of a di-alkanolamine and a monofunctional aromatic acid and optionally a difunctional acid.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: August 1, 2006
    Assignee: Oce-Technologies B.V.
    Inventors: Roelof Hendrik Everhardus, Erik Kelderman, Marcus Petrus Leonardus Huinck, Danny Hendrik Maria Hendricks, Rudolf Antonius Maria Venderbosch, Richard Hendrikus Gerrit Brinkhuis
  • Publication number: 20030225187
    Abstract: A meltable ink composition, which is solid at room temperature and liquid at elevated temperature, which ink composition is suitable for use in an inkjet printer, the ink composition being provided with a resin which contains a compound which is the reaction product of a di-alkanolamine and a monofunctional aromatic acid and optionally a difunctional acid.
    Type: Application
    Filed: May 23, 2003
    Publication date: December 4, 2003
    Inventors: Roelof Hendrik Everhardus, Erik Kelderman, Marcus Petrus Leonardus Huinck, Danny Hendrik Maria Hendricks, Rudolf Antonius Maria Venderbosch, Richard Hendrikus Gerrit Brinkhuis
  • Patent number: 6280510
    Abstract: An ink composition for a meltable ink usable in a printing apparatus in which ink droplets are ejected from ink ducts, the ink composition containing an amorphously solidifying monomer compound, which compound shows a crystallinity of less than 1% when a melt of the compound is cooled at a rate of 5° C./min to past its solidification path and is then heated at a rate of 20° C./min to above its melting temperature. The monomer compound can be used in a binder for the ink composition. When inks of this kind are transferred to a receiving material, it results in greater stability in the printed layers, with respect to gum, scratch, fold resistance and transparency.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: August 28, 2001
    Assignee: Oce-Technologeis B.V.
    Inventors: Erik Kelderman, Roelof Hendrik Everhardus, Nicolina M. Kortenhoeven
  • Patent number: 6071986
    Abstract: An ink composition for a meltable ink, usable in printing devices in which ink droplets are ejected from ducts, which composition contains a meltable base material, wherein the ink composition also contains an amorphously setting monomer compound and an amorphous polymer or oligomer binder and the base material is a crystalline-setting monomer compound. The flow and setting properties and the stiffness of the ink is adjusted by the choice and relative proportion of the constituents.
    Type: Grant
    Filed: February 4, 1998
    Date of Patent: June 6, 2000
    Assignee: Oce-Technologies, B.V.
    Inventors: Roelof Hendrik Everhardus, Ronald Groothuijse, Erik Kelderman, Clemens T. Weijkamp