Patents by Inventor Tomoko Utsumi

Tomoko Utsumi 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).

  • Area light emitting device, method for manufacturing area light emitting device, and optical device
    Publication number: 20040222432
    Abstract: An area light emitting device includes a transparent or translucent substrate and an area light emitting element arranged on the substrate. The substrate includes a first surface facing the area light emitting element and a second surface facing away from the area light emitting element. The area light emitting element emits light that enters the first surface and exits from the second surface. The second surface includes a recess for accommodating an optical member that changes the characteristics of the light emitted from the area light emitting element.
    Type: Application
    Filed: March 30, 2004
    Publication date: November 11, 2004
    Inventors: Tetsuya Utsumi, Yoshifumi Kato, Tomoko Utsumi