Patents by Inventor Hartwig Andries

Hartwig Andries 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).

  • Publication number: 20040249166
    Abstract: A compound represented by formula (I): 1
    Type: Application
    Filed: December 1, 2003
    Publication date: December 9, 2004
    Applicant: AGFA-GEVAERT
    Inventors: Etienne Van Thillo, Johan Loccufier, Hartwig Andries
  • Patent number: 6780576
    Abstract: A compound represented by formula (I): a compound represented by (II): or a mixture of at least one compound represented by formula (I) with at least one compound represented by formula (II), wherein M is hydrogen, an alkali atom or an ammonium group; R1 is hydrogen, a —(CH2)mSO3M group or a R2 is an alkyl-, alkenyl- or alkynyl- group having 6 to 25 carbon atoms; and m is an integer between 1 and 5; the use of at least one compound represented by the above-mentioned formula (I), at least one compound represented by the above-mentioned formula (II) or a mixture of at least one compound represented by the above-mentioned formula (I) and at least one compound represented by the above-mentioned formula (II) as a surfactant; and a photographic material comprising a support and a layer containing photosensitive silver halide, characterized in that the photographic material contains at least one compound represented by the above-mentioned formula (I), at le
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: August 24, 2004
    Assignee: Agfa-Gevaert
    Inventors: Etienne Van Thillo, Johan Loccufier, Hartwig Andries
  • Patent number: 6551769
    Abstract: A silver halide photographic film element has been disclosed, said element comprising on a light-sensitive side of a transparent polyester support, and, in order, an electrically conductive subbing layer, an antihalation undercoat, a light-sensitive emulsion layer or multilayer arrangement, optionally including one or more intermediate, non-light-sensitive layers between emulsion layers in said multilayer arrangement, and a protective overcoat; and on a backing layer side opposite thereto, in order, a subbing layer containing a lubricant and a topcoat layer, characterized in that on the light-sensitive side of said element said subbing layer comprises an antistatic agent providing a substantially unchanged electrical resistivity of the said element before and after processing of said material, and said antihalation undercoat optionally comprises a high temperature boiling solvent; whereas on the backing layer side a friction coefficient of the backing layer versus stainless steel remains unchanged in the rang
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: April 22, 2003
    Assignee: Agfa-Gevaert
    Inventors: Kris Viaene, Etienne Van Thillo, Hartwig Andries
  • Patent number: 6541128
    Abstract: An electroluminescent arrangement which contains a substrate, an anode, an electroluminescent element, a cathode, and said anode or said cathode is transparent in the visible spectral range and the electroluminescent element is a single layer containing an optionally substituted tris-1,3,5-(aminophenyl)benzene compound (A), a luminescent component B) or a electron-conducting charge-transporting substance.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: April 1, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rolf Wehrmann, Andreas Elschner, Martin Hueppauff, Christoph Jonda, David Terrell, Dirk Quintens, Hartwig Andries
  • Publication number: 20020136921
    Abstract: The invention concerns electroluminescent arrangements composed of a substrate, an anode, an electroluminescent element and a cathode, at least one of the two electrodes being transparent in the visible spectrum range. The electroluminescent electrode can contain the following components in sequence: an electroluminescent, holeinjecting, holetransporting zone, an electrontransporting zone and an electron-injecting zone. The invention is characterized in that the holeinjecting and holetransporting zone contains an optionally substituted tris 1,3,5(aminophenyl) benzene compound A or a mixture thereof, and the electroluminescent element optionally contains a further functionalized compound selected from the group comprising holetransporting materials, a luminescent material B and optionally electrontransporting materials. In addition to component A, the holeinjecting and holetransporting zone can comprise one a plurality of further holetransporting compounds.
    Type: Application
    Filed: February 9, 1999
    Publication date: September 26, 2002
    Inventors: ROLF WEHRMANN, ANDREAS ELSCHNER, MARTIN HUEPPAUFF, CHRISTOPH JONDA, DAVID TERRELL, DIRK QUINTENS, HARTWIG ANDRIES
  • Publication number: 20020123013
    Abstract: A silver halide photographic film element has been disclosed, said element comprising on a light-sensitive side of a transparent polyester support, and, in order, an electrically conductive subbing layer, an antihalation undercoat, a light-sensitive emulsion layer or multilayer arrangement, optionally including one or more intermediate, non-light-sensitive layers between emulsion layers in said multilayer arrangement, and a protective overcoat; and on a backing layer side opposite thereto, in order, a subbing layer containing a lubricant and a topcoat layer, characterized in that on the light-sensitive side of said element said subbing layer comprises an antistatic agent providing a substantially unchanged electrical resistivity of the said element before and after processing of said material, and said antihalation undercoat optionally comprises a high temperature boiling solvent; whereas on the backing layer side a friction coefficient of the backing layer versus stainless steel remains unchanged in the rang
    Type: Application
    Filed: October 1, 2001
    Publication date: September 5, 2002
    Inventors: Kris Viaene, Etienne Van Thillo, Hartwig Andries
  • Publication number: 20020110701
    Abstract: Electroluminescent assemblies containing a substrate, an anode, an electroluminescent element and a cathode, where at least one of the two electrodes is transparent or semitransparent in the visible spectral region and the electroluminescent element can contain in order:
    Type: Application
    Filed: March 12, 1999
    Publication date: August 15, 2002
    Inventors: ROLF WEHRMANN, HELMUT WERNER HEUER, FRIEDRICH JONAS, ANDREAS ELSCHNER, ANDREA MAYER, MARTIN HUPPAUFF, HARTWIG ANDRIES
  • Patent number: 5989777
    Abstract: A heat mode element with improved mechanical properties is disclosed comprising a transparent support, a thin metallic recording layer, an adhesive layer, a polymeric resin layer and a top layer comprising a roughening agent in such an amount that the R.sub.a value of said top layer is at least 0.08 .mu.m and the R.sub.z value is at least 0.6 .mu.m. In a preferred embodiment the metallic recording layer is a bismuth layer, and the support has on the other side a backing layer with a low R.sub.a and R.sub.z value.In an alternative embodiment the top layer is absent and the roughening agent is incorporated in the polymeric resin layer itself.Also disclosed is a method for obtaining a heat mode image by the information-wise laser exposure of the disclosed element.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: November 23, 1999
    Assignee: AGFA-Gevaert, N. V.
    Inventors: Johan Lamotte, Hartwig Andries
  • Patent number: 5573897
    Abstract: A method is provided for applying a magnetic layer onto a polymeric sheet or web material comprising the steps of(i) simultaneously coextruding a non magnetic "dummy" layer and a magnetic layer onto said polymeric sheet or web material, said non magnetic "dummy" layer being closest to the support(ii) drying the coextruded layers characterised in that the sum of the wet coating thickness of said "dummy" layer (Th.sub.dum) and of the wet coating thickness of said magnetic layer (Th.sub.mag) fulfils the equation 25 .mu.m.ltoreq.Th.sub.dum +Th.sub.mag .ltoreq.100 .mu.m and that the ratio of (Th.sub.mag) to (Th.sub.dum) fulfils the equation 0.01.ltoreq.Th.sub.mag /Th.sub.dum .ltoreq.1.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: November 12, 1996
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Hartwig Andries, Werner Krafft, Willem Mues, Jan Gilleir
  • Patent number: 5443944
    Abstract: A photographic material comprising a transparent film support having on one side at least one light-sensitive layer and on the other side a transparent magnetic layer and an antistatic layer of a polythiophene arranged above or below said transparent magnetic layer shows transparency and good mechanical and antistatic properties.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: August 22, 1995
    Assignee: Agta-Gevaert AG
    Inventors: Werner Krafft, Friedrich Jonas, Prem Lalvani, Hartwig Andries, Willem Mues