Patents by Inventor Teruaki UMENO

Teruaki UMENO 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).

  • Optical fiber temperature distribution measuring device
    Patent number: 9631983
    Abstract: An optical fiber temperature distribution measuring device measures a temperature distribution along an optical fiber by using backward Raman scattering light generated in the optical fiber. The device includes an arithmetic controller that changes a plurality of calibration parameters in conjunction with each other on the basis of a measured temperature value and a reference temperature value at a to-be-measured point, thereby converging a calibrated value of the measured temperature to a true value.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: April 25, 2017
    Assignee: Yokogawa Electric Corporation
    Inventors: Kazushi Oishi, Teruaki Umeno
  • OPTICAL FIBER TEMPERATURE DISTRIBUTION MEASURING DEVICE
    Publication number: 20150330844
    Abstract: An optical fiber temperature distribution measuring device measures a temperature distribution along an optical fiber by using backward Raman scattering light generated in the optical fiber. The device includes an arithmetic controller that changes a plurality of calibration parameters in conjunction with each other on the basis of a measured temperature value and a reference temperature value at a to-be-measured point, thereby converging a calibrated value of the measured temperature to a true value.
    Type: Application
    Filed: May 11, 2015
    Publication date: November 19, 2015
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Kazushi OISHI, Teruaki UMENO