Patents by Inventor Kyougo Suzuki

Kyougo Suzuki 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).

  • IC memory card having read/write inhibit capabilities
    Patent number: 5974513
    Abstract: A semiconductor storage device having a semiconductor memory for storing various data, a connector portion for uniting with a reader-writer device, and a memory control portion for controlling reading of data from the semiconductor memory and writing of data into the semiconductor memory in accordance with an instruction from the reader-writer device inputted through the connector portion. The semiconductor memory has a set password storage region where a set password has been written. The device is provided with a set password address comparison portion for outputting a coincidence signal to the memory control portion when an address signal inputted from the connector portion points to the set password storage region and a password collation portion for outputting a coincidence signal to the memory control portion when the set password outputted from the memory control portion and the input password inputted from the connector portion coincide with each other.
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: October 26, 1999
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Yuzou Matsuo, Kyougo Suzuki