Patents by Inventor Juha Koriseva

Juha Koriseva 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).

  • Thermoplastic-coated roll, method for manufacture and calendering of the thermoplastic-coated roll for use in paper/board machines
    Patent number: 6493938
    Abstract: The invention concerns a thermoplastic-coated roll for a paper/board machine, a method for manufacture of the roll, a composition of a thermoplastic coating for the roll, a method of calendering by using rolls in accordance with the invention, and paper/board manufactured by means of such rolls.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: December 17, 2002
    Assignee: Metso Paper, Inc.
    Inventors: Tommi Vainio, Juha Koriseva
  • Roll for a supercalender and method for calendering a web
    Patent number: 6039840
    Abstract: A paper machine roll, in particular a roll for a supercalender, which includes a frame and a polymer coating on the frame. The deformability of the polymer coating on the roll increases within a certain axial distance from the middle area of the roll toward the ends of the roll in order to compensate for the deformation state of the end areas of the roll frame, which deformation state is uneven when the roll is loaded.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: March 21, 2000
    Assignee: Valmet Corporation
    Inventors: Pauli Kytonen, Juha Koriseva, Erkki Leinonen