Patents by Inventor Masaaki Kameda

Masaaki Kameda 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).

  • Polycrystalline semiconductive film, semiconductor device using the same and method of manufacturing the same
    Patent number: 5498904
    Abstract: A semiconductive film is formed on a substrate having a surface with indentations defining a plurality of plane regions and elevated step difference portions between adjacent plane regions. The semiconductive film is irradiated with energy beams to be polycrystallized, whereby the positions of the crystal grain boundaries in the polycrystalline semiconductive film are controlled.
    Type: Grant
    Filed: September 27, 1994
    Date of Patent: March 12, 1996
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yasuki Harata, Masaaki Kameda, Keiichi Sano, Yoichiro Aya