Patents by Inventor Daniel Krizan

Daniel Krizan 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: 20220002847
    Abstract: A medium manganese cold-rolled steel intermediate product having an improved fts value is disclosed, the alloy having a carbon fraction within the range 0.003 wt %<C<0.12 wt %, a manganese fraction (Mn) within the range 3.5 wt %<Mn<12 wt %, a silicon fraction (Si) and/or an aluminium fraction (Al) as alloy fractions, where Si wt %+Al wt %<1, optionally further alloy fractions, optional microalloy fractions, in particular a titanium fraction (Ti) and/or a niobium fraction (Nb) and/or vanadium fraction (V), and the remainder of the alloy has iron (Fe) and unavoidable impurities of a melt. A method is also disclosed having the following step that is carried out after the cold-rolling step performing an intercritical box annealing process at a maximum annealing temperature of 684° C.?(517° C.*the carbon fraction in wt %).
    Type: Application
    Filed: July 4, 2019
    Publication date: January 6, 2022
    Applicant: VOESTALPINE STAHL GMBH
    Inventors: DANIEL KRIZAN, Katharina STEINDEDER, Reinhold SCHNEIDER
  • Patent number: 10227683
    Abstract: The present invention relates to high strength cold rolled steel sheet suitable for applications in automobiles, construction materials and the like, specifically high strength steel excellent in formability. In particular, the invention relates to cold rolled steel sheets having a tensile strength of at least 780 MPa.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: March 12, 2019
    Assignee: VOESTALPINE STAHL GMBH
    Inventors: Thomas Hebesberger, Daniel Krizan, Stefan Paul, Andreas Pichler
  • Publication number: 20190071748
    Abstract: A method for temperature-treating a manganese steel intermediate product whose alloy includes: a manganese content, which lies in the following manganese range: 3 wt. %?Mn?12 wt. %, a fraction of one or more alloying elements of the group: silicon (Si), aluminum (Al), nickel (Ni), chromium (Cr), molybdenum (Mo), phosphorus (P), sulfur (S), nitrogen (N), copper (Cu), boron (B), cobalt (Co), tungsten (W), an optional carbon content (C) of less than 1 wt. %, an optional content of one or more microalloying elements, wherein the total content of the micro-alloying elements is less than 0.45 wt. %; and as a remainder an iron content (Fe) and unavoidable impurities.
    Type: Application
    Filed: March 10, 2017
    Publication date: March 7, 2019
    Applicant: VOESTALPINE STAHL GMBH
    Inventors: Friedrich FÜREDER-KITZMÜLLER, Reinhold SCHNEIDER, Daniel KRIZAN
  • Patent number: 10202664
    Abstract: The present invention relates to high strength cold rolled steel sheet suitable for applications in automobiles, construction materials and the like, specifically high strength steel excellent in formability. In particular, the invention relates to cold rolled steel sheets having a tensile strength of at least 980 MPa and a method for producing such steel sheet.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: February 12, 2019
    Assignees: VOESTALPINE STAHL GMBH, KOBE STEEL, LTD
    Inventors: Daniel Krizan, Stefan Paul, Andreas Pichler, Michiharu Nakaya
  • Patent number: 10106874
    Abstract: The present invention relates to high strength cold rolled steel sheet suitable for applications in automobiles, construction materials and the like, specifically high strength steel sheet excellent in formability. In particular, the invention relates to cold rolled steel sheets having a tensile strength of at least 980 MPa and a method for producing such steel sheet.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: October 23, 2018
    Assignees: VOESTALPINE STAHL GMBH, KOBE STEEL LTD
    Inventors: Stefan Paul, Daniel Krizan, Andreas Pichler, Michiharu Nakaya
  • Patent number: 9970088
    Abstract: A multi-phase steel including in % wt. C: 0.14-0.25%, Mn: 1.7-2.5%, Si: 0.2-0.7%, Al: 0.5-1.5%, Cr: <0.1%, Mo: <0.05%, Nb: 0.02-0.06%, S: up to 0.01%, P: up to 0.02%, N: up to 0.01% and optionally at least one of Ti, B, and V according to the following stipulation: Ti: up to 0.1%, B: up to 0.002%, V: up to 0.15%, with the remainder iron and unavoidable impurities, wherein the microstructure has at least 10% vol. ferrite and at least 6% vol. residual austenite and the steel has a tensile strength Rm of at least 950 MPa, a yield point ReL of at least 500 MPa and an elongation at break A80 measured in the transverse direction of at least 15%. A method of producing the multi-phase steel.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: May 15, 2018
    Assignee: ThyssenKrupp Steel Europe AG
    Inventors: Ekaterina Bocharova, Dorothea Mattissen, Roland Sebald, Daniel Krizan, Andreas Pichler
  • Publication number: 20180105293
    Abstract: A Carbon Dioxide Removal System is disclosed. The system can be directed to space applications. The system incorporates unique features that allow ease of maintenance and parts replacement while in space.
    Type: Application
    Filed: October 10, 2017
    Publication date: April 19, 2018
    Inventors: Robert T. Bigelow, Colm Kelleher, Lorenzo Flores, Juan Plata, Jared Rugg, Derek Johnson, David Birchler, Daniel Krizan, Philip Fowler
  • Publication number: 20150167133
    Abstract: The present invention relates to high strength cold rolled steel sheet suitable for applications in automobiles, construction materials and the like, specifically high strength steel sheet excellent in formability. In particular, the invention relates to cold rolled steel sheets having a tensile strength of at least 980 MPa and a method for producing such steel sheet.
    Type: Application
    Filed: April 2, 2013
    Publication date: June 18, 2015
    Inventors: Stefan Paul, Daniel Krizan, Andreas Pichler, Michiharu Nakaya
  • Publication number: 20150059935
    Abstract: The present invention relates to high strength cold rolled steel sheet suitable for applications in automobiles, construction materials and the like, specifically high strength steel excellent in formability. In particular, the invention relates to cold rolled steel sheets having a tensile strength of at least 780 MPa.
    Type: Application
    Filed: April 2, 2013
    Publication date: March 5, 2015
    Applicant: VOESTALPINE STAHL GMBH
    Inventors: Thomas Hebesberger, Daniel Krizan, Stefan Paul, Andreas Pichler
  • Publication number: 20150034218
    Abstract: The present invention relates to high strength cold rolled steel sheet suitable for applications in automobiles, construction materials and the like, specifically high strength steel excellent in formability. In particular, the invention relates to cold rolled steel sheets having a tensile strength of at least 980 MPa and a method for producing such steel sheet.
    Type: Application
    Filed: April 2, 2013
    Publication date: February 5, 2015
    Inventors: Daniel Krizan, Stefan Paul, Andreas Pichler, Michiharu Nakaya
  • Publication number: 20130284321
    Abstract: A multi-phase steel including in % wt. C: 0.14-0.25%, Mn: 1.7-2.5%, Si: 0.2-0.7%, Al: 0.5-1.5%, Cr: <0.1%, Mo: <0.05%, Nb: 0.02-0.06%, S: up to 0.01%, P: up to 0.02%, N: up to 0.01% and optionally at least one of Ti, B, and V according to the following stipulation: Ti: up to 0.1%, B: up to 0.002%, V: up to 0.15%, with the remainder iron and unavoidable impurities, wherein the microstructure has at least 10% vol. ferrite and at least 6% vol. residual austenite and the steel has a tensile strength Rm of at least 950 MPa, a yield point ReL of at least 500 MPa and an elongation at break A80 measured in the transverse direction of at least 15%. A method of producing the multi-phase steel.
    Type: Application
    Filed: September 22, 2011
    Publication date: October 31, 2013
    Applicant: THYSSENKRUPP STEEL EUROPE AG
    Inventors: Ekaterina Bocharova, Dorothea Mattissen, Roland Sebald, Daniel Krizan, Andreas Pichler
  • Publication number: 20130248055
    Abstract: A multi-phase steel which in addition to iron and unavoidable impurities includes (in % wt.) C: 0.14-0.25%, Mn: 1.7-2.5%, Si: 1.4-2.0%, Al: <0.1%, Cr: <0.1%, Mo: <0.05%, Nb: 0.02-0.06%, S: up to 0.01%, P: up to 0.02%, N: up to 0.01% and optionally one of Ti, B, and V according to the following stipulation: Ti: ?0.1%, B: ?0.002%, V: ?0.15%. A cast semi-finished product, is hot rolled starting at an initial temperature of 1100-1300° C. and ending at a final temperature of 820-950° C., coiled at 400-750° C., cold rolled into the cold flat product at degrees of 30-80%, and subjected to a heat treatment including continuous annealing at 20° C.+Ac1-Ac3 and overageing at 350-500° C.
    Type: Application
    Filed: September 27, 2011
    Publication date: September 26, 2013
    Applicant: THYSSENKRUPP STEEL EUROPE AG
    Inventors: Ekaterina Bocharova, Dorothea Mattissen, Roland Sebald, Daniel Krizan, Andreas Pichler