Patents by Inventor Michael Hideto Tsutagawa

Michael Hideto Tsutagawa 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).

  • Triple Junction Solar Cell
    Publication number: 20110297213
    Abstract: An energy efficient triple junction InGaP/GaAs/Ge solar cell. In one embodiment, the triple junction InGaP/GaAs/Ge solar cell includes: a bottom Ge layer; a first tunnel junction layer above the bottom Ge layer; a middle GaAs layer above the first tunnel junction layer; a second tunnel junction layer above the middle GaAs layer; and a top InGaP layer above the second tunnel junction layer.
    Type: Application
    Filed: January 12, 2010
    Publication date: December 8, 2011
    Inventor: Michael Hideto Tsutagawa