Patents by Inventor Tapio Ritvonen

Tapio Ritvonen 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: 10763435
    Abstract: A layered apparatus comprises a substrate (100), a first electrically conductive layer (102) on and in contact with the substrate (100), a second patterned electrically conductive layer (104) which is in contact with the first electrically conductive layer (102), a third electrically conductive layer (112), a fourth electrically conductive layer (114) which is electrically insulated from the first electrically conductive layer (102), the second patterned electrically conductive layer (104) and the third electrically conductive layer (112), and an operationally active layer (108) between the first electrically conductive layer (102) and the fourth electrically conductive layer (114). The second patterned electrically conductive layer (104) is thicker than the operationally active layer (108), and a top part (104A) of the second patterned electrically conductive layer (104) extends across the operationally active layer (108) for having an electrical contact with the third electrically conductive layer (112).
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: September 1, 2020
    Assignee: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventors: Marja Välimäki, Tapio Ritvonen
  • Publication number: 20190237670
    Abstract: A layered apparatus comprises a substrate (100), a first electrically conductive layer (102) on and in contact with the substrate (100), a second patterned electrically conductive layer (104) which is in contact with the first electrically conductive layer (102), a third electrically conductive layer (112), a fourth electrically conductive layer (114) which is electrically insulated from the first electrically conductive layer (102), the second patterned electrically conductive layer (104) and the third electrically conductive layer (112), and an operationally active layer (108) between the first electrically conductive layer (102) and the fourth electrically conductive layer (114). The second patterned electrically conductive layer (104) is thicker than the operationally active layer (108), and a top part (104A) of the second patterned electrically conductive layer (104) extends across the operationally active layer (108) for having an electrical contact with the third electrically conductive layer (112).
    Type: Application
    Filed: September 26, 2017
    Publication date: August 1, 2019
    Inventors: Marja VÄLIMÄKI, Tapio RITVONEN
  • Publication number: 20160312349
    Abstract: The invention relates to a method for preventing the oxidation of metals in thermal spraying by coating the metallic powders to be used with nanocarbides, to a coating achieved using the method as well as to a method for treating the metal powder with nanocarbides. The methods according to the invention are suitable for all metal powders used in thermal spraying and, as the invention enables the use of cheaper materials, they are economically extremely advantageous.
    Type: Application
    Filed: July 5, 2016
    Publication date: October 27, 2016
    Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT
    Inventors: Tomi SUHONEN, Tommi VARIS, Erja TURUNEN, Tapio RITVONEN
  • Publication number: 20120020828
    Abstract: The invention relates to a method for preventing the oxidation of metals in thermal spraying by coating the metallic powders to be used with nanocarbides, to a coating achieved using the method as well as to a method for treating the metal powder with nanocarbides. The methods according to the invention are suitable for all metal powders used in thermal spraying and, as the invention enables the use of cheaper materials, they are economically extremely advantageous.
    Type: Application
    Filed: March 3, 2010
    Publication date: January 26, 2012
    Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT
    Inventors: Tomi Suhonen, Tommi Varis, Erja Turunen, Tapio Ritvonen