Patents by Inventor Pentti Olavi Ahlgren

Pentti Olavi Ahlgren 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).

  • Two-sided illumination device
    Patent number: 8025434
    Abstract: A two-sided illumination device including a printed wiring board, a first light source and first translucent member connected to a first side of the wiring board, and a second light source and second translucent member connected to a second side of the wiring board. The first translucent member is configured to transfer light from the first light source to a surface of the first translucent member, while the second translucent member is configured to transfer light from the second light source to a surface of the second translucent member. The illumination device is used for illuminating a user input region of an apparatus.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: September 27, 2011
    Assignee: Nokia Corporation
    Inventors: Pentti Olavi Ahlgren, Ilkka Tapani Heikkilä
  • Electronic device illumination
    Publication number: 20090294266
    Abstract: Disclosed herein is an apparatus. The apparatus includes a printed wiring board, a first light source, a first translucent member, a second light source, and a second translucent member. The printed wiring board includes a first side and a second side. The first light source is connected to the first side of the printed wiring board. The first translucent member is connected to the printed wiring board. The first translucent member is configured to transfer light from the first light source to a surface of the first translucent member. The second light source is connected to the second side of the printed wiring board. The second translucent member is connected to the printed wiring board. The second translucent member is configured to transfer light from the second light source to a surface of the second translucent member.
    Type: Application
    Filed: June 3, 2008
    Publication date: December 3, 2009
    Inventors: Pentti Olavi Ahlgren, Ilkka Tapani Heikkila