Patents by Inventor N otzel Richard

N otzel Richard 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).

  • Method of fabricating a quantum dot structure on a (n11) substrate
    Patent number: 5543354
    Abstract: A semiconductor structure includes a first semiconductor barrier layer formed on a compound semiconductor substrate, a semiconductor carrier confinement layer formed on the semiconductor barrier layer, and a second semiconductor barrier layer arranged on the semiconductor carrier confinement layer. The semiconductor carrier confinement layer includes a plurality of islands spaced apart from each other and having an almost equal thickness, and a thin quantum well film arranged between the islands and having a thickness smaller than the thickness of the islands.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: August 6, 1996
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: N otzel Richard, Temmyo Jiro, Tamamura Toshiaki, Sugo Mitsuru, Kuramochi Eiichi, Nishiya Teruhiko