Patents by Inventor Matti Valkiainen

Matti Valkiainen 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 structure comprising an enzyme layer
    Patent number: 9614243
    Abstract: A multilayered structure suitable as an electrode in a power source and a method of producing the same. The structure comprises a conductive laminar layer; and an enzyme layer containing an essentially dry enzyme capable of oxidizing or dehydrogenating carbohydrate material under suitable conditions. Because the enzymatic anode layer and the fuel containing layer are not interacting during the production and since they are kept latent during storage time, the power source will remain stable for extended periods of time, thus increasing the utility of the power source.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: April 4, 2017
    Assignee: Teknologian Tutkimuskeskus VTT Oy
    Inventors: Anu Vaari, Ville-Mikko Ojala, Matti Valkiainen, Maria Smolander, Harry Boer
  • Thin film structures
    Patent number: 8758936
    Abstract: A thin film structure, method of producing it and the use thereof. The thin film structure comprises a substrate with a thin conductive layer containing an oxidizing enzyme mixed with an electron transfer mediator. The thin layer is protected against wetting to allow for its storage in dry conditions and further being sufficiently porous to allow for immediate activation of the oxidizing enzyme when contacted with an aqueous solution. The thin film can be used as a cathode in electrochemical fuel cells.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: June 24, 2014
    Assignee: Valtion Teknillinen Tutkimuskeskus
    Inventors: Matti Valkiainen, Harry Boer, Anu Koivula, Maria Smolander, Pia Qvintus-Leino, Kirsi Immonen, Liisa Viikari
  • Multilayered Structure
    Publication number: 20130017457
    Abstract: A multilayered structure suitable as an electrode in a power source and a method of producing the same. The structure comprises a conductive laminar layer; and an enzyme layer containing an essentially dry enzyme capable of oxidizing or dehydrogenating carbohydrate material under suitable conditions. Because the enzymatic anode layer and the fuel containing layer are not interacting during the production and since they are kept latent during storage time, the power source will remain stable for extended periods of time, thus increasing the utility of the power source.
    Type: Application
    Filed: December 16, 2010
    Publication date: January 17, 2013
    Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT
    Inventors: Anu Vaari, Ville-Mikko Ojala, Matti Valkiainen, Maria Smolander, Harry Boer
  • NOVEL THIN FILM STRUCTURES
    Publication number: 20090280408
    Abstract: A thin film structure, method of producing it and the use thereof. The thin film structure comprises a substrate with a thin conductive layer containing an oxidizing enzyme mixed with an electron transfer mediator. The thin layer is protected against wetting to allow for its storage in dry conditions and further being sufficiently porous to allow for immediate activation of the oxidizing enzyme when contacted with an aqueous solution. The thin film can be used as a cathode in electrochemical fuel cells.
    Type: Application
    Filed: June 19, 2007
    Publication date: November 12, 2009
    Applicant: VOLTION TEKNILLINEN TUTKIMUSKESKUS
    Inventors: Matti Valkiainen, Harry Boer, Anu Koivula, Maria Smolander, Pia Qvintus-Leino, Kirsi Immonen, Liisa Viikari