Patents by Inventor Mitsuru Irishima

Mitsuru Irishima 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 apparatus having interlocking operating system
    Patent number: 5267135
    Abstract: According to this invention, a power supply apparatus includes a first power supply unit, a second power supply unit, and an interlocking starting circuit. The first power supply unit has a first power supply terminal connected to a power supply, a first converter for converting a voltage of the power supply terminal into a predetermined voltage, and a switch for connecting/disconnecting the power supply through the first power supply terminal. The second power supply unit has a second power supply terminal connected to an output of the switch and a second converter for converting a voltage of the second power supply terminal into a predetermined voltage. The interlocking starting circuit is connected to the output of the switch and interlocks and starts the first and second power supply units.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: November 30, 1993
    Assignee: NEC Corporation
    Inventors: Yasuaki Tezuka, Mitsuru Irishima