Patents by Inventor Mitio Maruyama

Mitio Maruyama 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).

  • Patent number: 6345350
    Abstract: A program space for executing a program is set in the logical memory space of CPU and the address translating destination of the program space 6 can be set in a switching mode between a ROM as a first memory and a RAM as a second memory. Thus, the address translating destination of the program space is set in the ROM when the executing speed is made increasable by utilizing the RAM as a system memory because of the presence of bulk processing data, whereas the address translating destination of the program space is set in the high-speed RAM when the RAM has a sufficient space margin.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: February 5, 2002
    Assignee: Seiko Epson Corporation
    Inventors: Mitio Maruyama, Kazuyoshi Utsumi