Patents by Inventor Timo Tarvainen

Timo Tarvainen 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).

  • Method for determining the RF shielding effectiveness of a shielding structure
    Patent number: 7173434
    Abstract: Determining the RF shielding effectiveness of a shielding structure including measuring RF isolation between a first and a second element of a directional coupler and providing a first measurement result, placing a shielding structure so that a part of the shielding structure is substantially between the first element and the second element of the directional coupler, measuring RF isolation between the first element and the second element of the directional coupler RF and providing a second measurement result, and determining the shielding effectiveness of the shielding structure based at least in part on the first and the second measurement result.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: February 6, 2007
    Assignee: Nokia Corporation
    Inventors: Timo Tarvainen, Juha Seppala, Jari Kolehmainen, Arto Auno
  • Method for determining the RF shielding effectiveness of a shielding structure
    Publication number: 20060170430
    Abstract: Determining the RF shielding effectiveness of a shielding structure including measuring RF isolation between a first and a second element of a directional coupler and providing a first measurement result, placing a shielding structure so that a part of the shielding structure is substantially between the first element and the second element of the directional coupler, measuring RF isolation between the first element and the second element of the directional coupler RF and providing a second measurement result, and determining the shielding effectiveness of the shielding structure based at least in part on the first and the second measurement result.
    Type: Application
    Filed: December 30, 2005
    Publication date: August 3, 2006
    Inventors: Timo Tarvainen, Juha Seppala, Jari Kolehmainen, Arto Auno
  • Method in the manufacture of a keyboard for an electronic device
    Patent number: 6483051
    Abstract: A method in the manufacture of a keyboard for an electronic device, the keyboard comprising a set of separate key caps fitted next to each other for transferring pressings, wherein each key cap is further attached to a common base. In the method, the key caps are separated from a solid piece by laser cutting, the piece being simultaneously attached to said base in such a way that the pieces to be separated from the piece, of which each represents one of said key caps, remain attached to said base even after the cutting.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: November 19, 2002
    Assignee: Nokia Mobile Phones Ltd.
    Inventors: Esa-Sakari M{umlaut over (aa)}ttä, Marko Eromäki, Timo Tarvainen
  • Method in the manufacture of a keyboard for an electronic device
    Publication number: 20020008008
    Abstract: A method in the manufacture of a keyboard for an electronic device, the keyboard comprising a set of separate key caps fitted next to each other for transferring pressings, wherein each key cap is further attached to a common base. In the method, the key caps are separated from a solid piece by laser cutting, the piece being simultaneously attached to said base in such a way that the pieces to be separated from the piece, of which each represents one of said key caps, remain attached to said base even after the cutting.
    Type: Application
    Filed: June 29, 2001
    Publication date: January 24, 2002
    Inventors: Esa-Sakari Maatta, Marko Eromaki, Timo Tarvainen