Patents by Inventor Masataka Katsumura

Masataka Katsumura 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).

  • Data processing system and method for transfer and merging data in memory cards
    Patent number: 5408633
    Abstract: Computer-based application systems encounter a case in which data must not exist in a plurality of storage devices. This problem emerges typically in translocating data. The invention disclosed here is intended to erase data in its original location promptly after it has been translocated. The invention comprises a memory card containing a processor and a storage device wherein the memory card is connected to an external processing apparatus. In response to a command issued by the processing apparatus, data is erased from the memory card just after it is copied to the processing apparatus. Thereafter, the data stored in the processing apparatus may be transferred to a second memory card.
    Type: Grant
    Filed: September 23, 1993
    Date of Patent: April 18, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Masataka Katsumura, Akihiro Kawaoka, Khotaro Yamashita