Patents by Inventor Yuma ETO

Yuma ETO 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).

  • Duplexed control system and control method thereof
    Patent number: 9910754
    Abstract: A duplexed control system comprises: two control devices, whereof one is set to operate as a reserve system and the other is set to operate as a regular system; a tracking bus that connects the two control devices to enable these to exchange tracking signals; and a control transmission channel that transmits computational information of these two control devices; wherein: the control devices respectively have: an own-system state evaluation section that transmits the result of state evaluation of its own system as a tracking signal through the tracking bus to the other system; an other-system signal confirmation section that receives the tracking signal through the tracking bus from the control device of the other system and thus performs state confirmation; and a transmission channel changeover section that, if the tracking signal cannot be received through the tracking bus, effects transmission of the tracking signal to the other-system signal confirmation section of the other system, through the control tr
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: March 6, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yuma Eto, Toshio Tagawa, Tomokazu Imahori, Susumu Yoshizawa, Kazuo Ootani, Yoshiyuki Nitta, Kenichi Wakamatsu, Yukio Okamoto
  • Thermocouple abnormality detection system and detection method thereof
    Patent number: 9261416
    Abstract: According to one embodiment, a thermocouple abnormality detection system including: a plurality of thermocouples each including a plurality of thermocouple wires housed in a sheath; a transmission signal conversion unit configured to convert a thermo-electromotive force generated by each of the plurality of the thermocouple wires to a transmission signal and to output the transmission signal; a transmission unit configured to transmit the transmission signal outputted from the transmission signal conversion unit; and an abnormality detection circuit configured to detect an abnormality of each of the plurality of the thermocouples by comparing, with each other, the transmission signals obtained from the plurality of thermocouple wires provided in each of the thermocouples.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: February 16, 2016
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA PLANT SYSTEMS & SERVICES CORPORATION
    Inventors: Masayuki Tobo, Yuma Eto, Mamoru Fukui, Noboru Morohoshi, Shigeru Yamaji
  • DUPLEXED CONTROL SYSTEM AND CONTROL METHOD THEREOF
    Publication number: 20140336794
    Abstract: A duplexed control system comprises: two control devices, whereof one is set to operate as a reserve system and the other is set to operate as a regular system; a tracking bus that connects the two control devices to enable these to exchange tracking signals; and a control transmission channel that transmits computational information of these two control devices; wherein: the control devices respectively have: an own-system state evaluation section that transmits the result of state evaluation of its own system as a tracking signal through the tracking bus to the other system; an other-system signal confirmation section that receives the tracking signal through the tracking bus from the control device of the other system and thus performs state confirmation; and a transmission channel changeover section that, if the tracking signal cannot be received through the tracking bus, effects transmission of the tracking signal to the other-system signal confirmation section of the other system, through the control tr
    Type: Application
    Filed: July 25, 2014
    Publication date: November 13, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Yuma ETO, Toshio TAGAWA, Tomokazu IMAHORI, Susumu YOSHIZAWA, Kazuo OOTANI, Yoshiyuki NITTA, Kenichi WAKAMATSU, Yukio OKAMOTO
  • THERMOCOUPLE ABNORMALITY DETECTION SYSTEM AND DETECTION METHOD THEREOF
    Publication number: 20130028285
    Abstract: According to one embodiment, a thermocouple abnormality detection system including: a plurality of thermocouples each including a plurality of thermocouple wires housed in a sheath; a transmission signal conversion unit configured to convert a thermo-electromotive force generated by each of the plurality of the thermocouple wires to a transmission signal and to output the transmission signal; a transmission unit configured to transmit the transmission signal outputted from the transmission signal conversion unit; and an abnormality detection circuit configured to detect an abnormality of each of the plurality of the thermocouples by comparing, with each other, the transmission signals obtained from the plurality of thermocouple wires provided in each of the thermocouples.
    Type: Application
    Filed: July 6, 2012
    Publication date: January 31, 2013
    Applicants: Toshiba Plant Systems & Services Corporation, Kabushiki Kaisha Toshiba
    Inventors: Masayuki TOBO, Yuma ETO, Mamoru FUKUI, Noboru MOROHOSHI, Shigeru YAMAJI