Patents by Inventor Karsten Lerius

Karsten Lerius 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: 8637431
    Abstract: A heat-sensitive recording material having a substrate that carries on its first side at least one heat-sensitive recording layer having at least one dye precursor and at least one color acceptor. The dye precursor and color acceptor react with one another in a color-forming manner under the action of heat. On its second side the substrate has a backcoat containing calcium carbonate. The backcoat is formed of at least two layers, a first layer is applied closer to the substrate and a second layer is applied farther from the substrate. The first layer contains a first calcium carbonate and the second layer contains a second calcium carbonate that differs from the first calcium carbonate.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: January 28, 2014
    Assignee: Mitsubishi HiTec Paper Europe GmbH
    Inventors: Gerhard Stork, Karsten Lerius
  • Patent number: 8377521
    Abstract: An ink-jet recording paper with a paper substrate that has a coating on at least one side, wherein the coating contains binder and inorganic pigment, and wherein: (a) the substrate has a density in the range of 0.6 to 1.0 g/cm3 and a Cobb60 value in the range of 19-25 g/m2; (b) the coating consists solely of a single layer formed as a recording layer, which is applied directly to the substrate; (c) the pigment present in the recording layer consists of colloidal synthetic boehmite with a mean crystal size in the range of 10-50 nm; and (d) the binder present in the recording material consists of silanized polyvinyl alcohol to the extent of 80-100 wt. %.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: February 19, 2013
    Assignee: Mitsubishi HiTec Paper Flensburgh GmbH
    Inventors: Gerhard Stork, Karsten Lerius
  • Publication number: 20120225774
    Abstract: A heat-sensitive recording material having a substrate that carries on its first side at least one heat-sensitive recording layer having at least one dye precursor and at least one color acceptor. The dye precursor and color acceptor react with one another in a color-forming manner under the action of heat. On its second side the substrate has a backcoat containing calcium carbonate. The backcoat is formed of at least two layers, a first layer is applied closer to the substrate and a second layer is applied farther from the substrate. The first layer contains a first calcium carbonate and the second layer contains a second calcium carbonate that differs from the first calcium carbonate.
    Type: Application
    Filed: June 30, 2010
    Publication date: September 6, 2012
    Applicant: Mitsubishi HiTec Paper Europe GmbH
    Inventors: Gerhard Stork, Karsten Lerius
  • Patent number: 7615265
    Abstract: A novel recording material for the inkjet printing process has a substrate and an ink receiving layer which is applied on at least one side of the substrate, the ink receiving layer containing an inorganic pigment and an ink fixative comprising at least two substances. The first substance is a polyamine epichorohydrin and the second substance is a polyvalent metal salt. This recording material is characterized in that the first substance is a medium-molecular, branched polyamine epichlorohydrin condensation product, the ratio of the first substance to the second substance is between 3:1 and 16:1, the pigment makes up at least 80 percent by weight with a D50 particle size (Malvern) ranging from 4 ?m inclusive to 12 ?m inclusive, and the ratio of ink fixative to pigment ranges from 1:2 inclusive to 1:6 inclusive. The invention is further directed to a method for recording by the discontinuous inkjet printing process which uses the novel recording material.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: November 10, 2009
    Assignee: Mitsubishi Hitec Paper Flensburg GmbH
    Inventors: Gerhard Stork, Makato Kato, Karsten Lerius
  • Publication number: 20070002120
    Abstract: An ink-jet recording paper with a paper substrate that has a coating on at least one side, wherein the coating contains binder and inorganic pigment, and wherein: (a) the substrate has a density in the range of 0.6 to 1.0 g/cm3 and a Cobb60 value in the range of 19-25 g/m2; (b) the coating consists solely of a single layer formed as a recording layer, which is applied directly to the substrate; (c) the pigment present in the recording layer consists of colloidal synthetic boehmite with a mean crystal size in the range of 10-50 nm; and (d) the binder present in the recording material consists of silanized polyvinyl alcohol to the extent of 80-100 wt. %.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 4, 2007
    Inventors: Gerhard Stork, Karsten Lerius
  • Patent number: 6880927
    Abstract: A printing medium for the inkjet printing method having a substrate and an ink acceptor layer, which is applied to at least one side of the substrate, wherein the ink acceptor layer includes an ink fixing agent and an inorganic pigment. The ink fixing agent includes a medium molecular weight branched amine-epichlorohydrin condensate which includes at least 70% by weight of the total quantity of the ink fixing agent in the ink accepting layer, the inorganic pigment is present at least 80% by weight with a particle size in a range between 6 and 12 ?m and the ink fixing agent to pigment ratio is in a range from 1:2 to 1:6.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: April 19, 2005
    Assignee: Mitsubishi HiTec Paper Flensburg GmbH
    Inventors: Gerhard Stork, Makato Kato, Karsten Lerius
  • Publication number: 20040189778
    Abstract: A novel recording material for the inkjet printing process has a substrate and an ink receiving layer which is applied on at least one side of the substrate, the ink receiving layer containing an inorganic pigment and an ink fixative comprising at least two substances. The first substance is a polyethylamine epichorohydrin and the second substance is a polyvalent metal salt. This recording material is characterized in that the first substance is a medium-molecular, branched polyamine epichlorohydrin condensation product, the ratio of the first substance to the second substance is between 3:1 and 16:1, the pigment makes up at least 80 percent by weight with a D50 particle size (Malvern) ranging from 4 &mgr;m inclusive to 12 &mgr;m inclusive, and the ratio of ink fixative to pigment ranges from 1:2 inclusive to 1:6 inclusive. The invention is further directed to a method for recording by the discontinuous inkjet printing process which uses the novel recording material.
    Type: Application
    Filed: May 7, 2004
    Publication date: September 30, 2004
    Inventors: Gerhard Stork, Makato Kato, Karsten Lerius
  • Publication number: 20040027433
    Abstract: A printing medium for the inkjet printing method is disclosed, with a substrate and an ink acceptor layer, which is applied to at least one side of the substrate, whereby said ink acceptor layer comprises an amine-epichlorohydrin condensation product and an inorganic pigment. Said medium is characterised in that the ink acceptor layer comprises at least one ink fixing agent, composed of an amine-epichlorohydrin condensation product with a mid-value molecular weight, the inorganic pigment is present at at least 80 wt. %, with a particle size in a range between 6 and 12 &mgr;m and the ink fixing agent to pigment ratio is in a range from 1.2 to 1.6. The invention further relates to a method using the novel printing medium for imaging by means of the discontinuous inkjet printing method.
    Type: Application
    Filed: May 1, 2003
    Publication date: February 12, 2004
    Inventors: Gerhard Stork, Makoto Kato, Karsten Lerius