Patents by Inventor Petri Kohonen

Petri Kohonen 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).

  • EMI gasket
    Patent number: 7285731
    Abstract: The invention relates to an EMI gasket formed by joining coated steel (3) and a contact backing (1). The coated steel (3) has elongated openings (4), into which projections (2) provided on the contact backing fit, seizing by their edges the edges of the openings.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: October 23, 2007
    Assignee: Tellabs Oy
    Inventors: Petri Kohonen, Pentti Immonen
  • EMI gasket
    Publication number: 20050269118
    Abstract: The invention relates to an EMI gasket formed by joining coated steel (3) and a contact backing (1). The coated steel (3) has elongated openings (4), into which projections (2) provided on the contact backing fit, seizing by their edges the edges of the openings.
    Type: Application
    Filed: May 10, 2005
    Publication date: December 8, 2005
    Inventors: Petri Kohonen, Pentti Immonen
  • Embossing tool for circuit board holders having a working face with an H-shaped formation, and method of making circuit board holders using such tool
    Patent number: 6546615
    Abstract: A tool used in manufacturing circuit board holders from sheets of material has a working face for forming embossments on the sheets by repetitively striking the sheets therewith. The working face includes an H-shaped formation for forming two separate halves of an embossment on the sheet of material with one strike, of which, of the two separate halves, one is delimited by the upper parallel lines of the H and the other is delimited by the lower parallel lines of the H.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: April 15, 2003
    Assignee: Tellabs Oy
    Inventor: Petri Kohonen