Patents by Inventor Toshio Takeshima

Toshio Takeshima 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).

  • Dynamic random access memory device having a plurality of one-transistor type memory cells
    Patent number: 4737829
    Abstract: A dynamic memory device having a plurality of one-transistor type memory cells is disclosed.The memory device has a plurality of pillar-like semiconductor protrusions. The transfer gate transistor of a memory cell is formed along the upper portion of the pillar-like semiconductor protrusion such that its channel region is positioned at a side surface of the upper portion, and the storage capacitor of the memory cell is formed along the lower portion of the pillar-like semiconductor protrusion.
    Type: Grant
    Filed: March 28, 1986
    Date of Patent: April 12, 1988
    Assignee: NEC Corporation
    Inventors: Mitsutaka Morimoto, Yuji Okuto, Toshio Takeshima