Patents by Inventor Mitsuhiro Tojima

Mitsuhiro Tojima 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).

  • Multitasking computer system having a boot process rewrite program
    Patent number: 6223336
    Abstract: A computer system that can rewrite a boot process program during operation, comprising at least two planes of non-volatile memory devices that are rewritable by software, a non-volatile memory device selector for switching at least the two planes of non-volatile memory devices, a multitasking operation system that can operate plural tasks, a boot process program rewrite program for operating as one task on the multitasking operating system and rewriting boot process programs written in the non-volatile memory devices, and a register with latch function for holding a rewrite state of each of the boot process programs written in at least the two planes of non-volatile memory devices.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: April 24, 2001
    Assignee: NEC Corporation
    Inventor: Mitsuhiro Tojima
  • Multitasking computer system having a boot process rewrite program
    Patent number: 6018629
    Abstract: A computer system that can rewrite a boot process program during operation, comprising at least two planes of non-volatile memory devices that are rewritable by software, a non-volatile memory device selector for switching at least the two planes of non-volatile memory devices, a multitasking operation system that can operate plural tasks, a boot process program rewrite program for operating as one task on the multitasking operating system and rewriting boot process programs written in the non-volatile memory devices, and a register with latch function for holding a rewrite state of each of the boot process programs written in at least the two planes of non-volatile memory devices.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: January 25, 2000
    Assignee: NEC Corporation
    Inventor: Mitsuhiro Tojima