Patents by Inventor Sadami Hattori

Sadami Hattori 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).

  • Power supply circuitry for a microcomputer system
    Patent number: 4614880
    Abstract: A power supply circuitry for a microcomputer system made up of a control unit including a microprocessor and a peripheral circuit, is provided with a delay switch circuit (55) for controlling the operation of the second regulator means (41) which provides a power current to the peripheral circuit of the microcomputer system. The delay switch circuit is responsive to a reset signal produced by a reset signal generating means connected to a first regulator means (34) for the control unit, and generates a signal for activating the second regulator means shortly after the extinction of the reset signal so that the operation of the peripheral circuit is prevented during a period of a reset operation of the microprocessor.
    Type: Grant
    Filed: November 3, 1983
    Date of Patent: September 30, 1986
    Assignee: Pioneer Electronic Corporation
    Inventors: Yasunao Go, Yoshiharu Ueki, Minoru Motohashi, Kozo Nozawa, Sadami Hattori