Patents by Inventor Masataka Ookawa

Masataka Ookawa 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).

  • Network communication system for uninterruptible power supply and method for grouping controllers therein
    Patent number: 8327162
    Abstract: Even if a network setting changes due to power interruption or the like, communication for controlling the operating status of load devices of an uninterruptible power supply is enabled to continue. A network communication system (1) for the uninterruptible power supply comprises UPS member controllers (12 and 13) and a UPS group controller (11) which are connected in a network (2) to control the operating status of the load devices (3) of the uninterruptible power supply (1). The UPS group controller (11) and the UPS member controllers (12 and 13) execute data communication according to a predetermined communication protocol (Internet Protocol or the like) through the network (2), and these controllers transmit/receive data in which specific identification information issued for each of the UPS member controllers (12 and 13) is added to control data as communication data in the data communication according to the predetermined communication protocol.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: December 4, 2012
    Assignee: TDK-Lambda Corporation
    Inventors: Fujitaka Togashi, Masato Suzuki, Masataka Ookawa
  • NETWORK COMMUNICATION SYSTEM FOR UNINTERRUPTABLE POWER SUPPLY AND METHOD FOR DIVIDING CONTROLLER GROUP FOR PERFORMING COMMUNICATION TO CONTROL OPERATING STATUS OF LOAD DEVICE OF UNINTERRUPTIBLE POWER SUPPLY FOR EACH UNINTERRUPTIBLE POWER SUPPLY
    Publication number: 20100162009
    Abstract: Even if a network setting changes due to power interruption or the like, communication for controlling the operating status of load devices of an uninterruptible power supply is enabled to continue. A network communication system (1) for the uninterruptible power supply comprises UPS member controllers (12 and 13) and a UPS group controller (11) which are connected in a network (2) to control the operating status of the load devices (3) of the uninterruptible power supply (1). The UPS group controller (11) and the UPS member controllers (12 and 13) execute data communication according to a predetermined communication protocol (Internet Protocol or the like) through the network (2), and these controllers transmit/receive data in which specific identification information issued for each of the UPS member controllers (12 and 13) is added to control data as communication data in the data communication according to the predetermined communication protocol.
    Type: Application
    Filed: May 19, 2008
    Publication date: June 24, 2010
    Inventors: Fujitaka Togashi, Masato Suzuki, Masataka Ookawa