Patents by Inventor Youko Nishioka

Youko Nishioka 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).

  • Electronic apparatuses capable of scrambling confidential data for display
    Patent number: 6172664
    Abstract: In response to a read instruction, the confidentiality of a data entry to be read from memory is determined by referencing the state of a confidentiality flag corresponding to that data entry. If the data entry is determined to be confidential, then specified codes of the data stored in the RAM are converted into different codes, i.e., the data entry is scrambled. The data entry is then displayed using the converted codes.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: January 9, 2001
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masataka Nakasuji, Shoichi Kawai, Yoshiro Kihara, Junichi Saitou, Youko Nishioka