Patents by Inventor Johan BÖHLMARK

Johan BÖHLMARK 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).

  • Multilayered coated cutting tool
    Patent number: 8758890
    Abstract: A coated cutting tool includes a substrate and a PVD coating having an outermost zone C being a nitride, carbide, boride, or mixtures thereof, of Si and at least two additional elements selected from Al, Y, and groups 4, 5 or 6 of the periodic table and zone C is free from a compositional gradient of an average content of Si. Zone C has a laminar, aperiodic, multilayered structure with alternating individual layers X and Y having different compositions from each other. The coating further includes a zone A closest to the substrate, a transitional zone B, where zone A is essentially free from Si, zone B includes a compositional gradient of the average content of Si, and where the average content of Si is increasing towards zone C.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: June 24, 2014
    Assignee: Sandvik Intellectual Property AB
    Inventors: Johan Böhlmark, Helen Blomqvist
  • MULTILAYERED COATED CUTTING TOOL
    Publication number: 20110135898
    Abstract: A coated cutting tool includes a substrate and a PVD coating having an outermost zone C being a nitride, carbide, boride, or mixtures thereof, of Si and at least two additional elements selected from Al, Y, and groups 4, 5 or 6 of the periodic table and zone C is free from a compositional gradient of an average content of Si. Zone C has a laminar, aperiodic, multilayered structure with alternating individual layers X and Y having different compositions from each other. The coating further includes a zone A closest to the substrate, a transitional zone B, where zone A is essentially free from Si, zone B includes a compositional gradient of the average content of Si, and where the average content of Si is increasing towards zone C.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 9, 2011
    Applicant: Sandvik Intellectual Property AB
    Inventors: Johan BÖHLMARK, Helen BLOMQVIST