Patents by Inventor Akitsu Shimoda

Akitsu Shimoda 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).

  • Ion-implantation method in solid materials for implanting impurities
    Patent number: 5096841
    Abstract: An ion-implantation method for implanting desired impurities selectively in a solid material is provided that comprises forming a blocking film on the solid material, and implanting the impurities in the solid material with the blocking film used as a shielding mask for ion implantation, wherein the blocking film is formed to have a gentle slope at its edge portions.
    Type: Grant
    Filed: December 5, 1989
    Date of Patent: March 17, 1992
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Atsushi Miura, Akitsu Shimoda