Patents by Inventor Katsumi Tsujii

Katsumi Tsujii 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).

  • Light emitting diode electrode
    Patent number: 4553154
    Abstract: An electrode adapted for a semiconductor device, comprises an alloy layer formed with a gold basis, the alloy layer being disposed on the semiconductor device to provide an ohmic contact with the semiconductor device, a TiN layer, a Ti layer, and an Al layer which is bonded to an external terminal for the semiconductor device.
    Type: Grant
    Filed: December 13, 1984
    Date of Patent: November 12, 1985
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Katsumi Tsujii