Patents by Inventor Yoshino Sakai

Yoshino Sakai 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 integrated circuit device and digital processor employing the same
    Patent number: 5388073
    Abstract: A semiconductor memory device for use in a digital data processor together with a central processing unit (CPU) receives address signals which are validated for a time period n times as long as the machine cycle of the CPU, and it stores therein input data items which are validated for a cycle equal to the machine cycle of the CPU or delivers therefrom output data items which are validated for a cycle equal to the machine cycle of the CPU.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: February 7, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Masami Usami, Akihisa Uchida, Yoshino Sakai, Masato Iwabuchi