Patents by Inventor Toyofumi Yoshinaka

Toyofumi Yoshinaka 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).

  • Semiconductor disk device with attachable integrated circuit cards
    Patent number: 5522049
    Abstract: A semiconductor disk device that is capable of processing hardware interface utilizing the basic input/output systems of various and different standard operating systems. This capability is realized by using detachable IC cards as the principal memory elements of the semiconductor disk device.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: May 28, 1996
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masatoshi Kimura, Toyofumi Yoshinaka