Patents by Inventor Shigeto NAGASHIMA

Shigeto NAGASHIMA 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).

  • Building safety verification system and building safety verification method
    Patent number: 10429269
    Abstract: A building safety verification system and a building safety verification method for estimating a degree of damage of a building after an earthquake occurs are provided. The building safety verification system includes: an inter-story displacement measurement unit which obtains, from measurement data of acceleration sensors which measure accelerations of a plurality of stories in a building, an inter-story displacement of each of the stories; a natural period measurement unit which obtains a natural period of microtremor of the building from measurement data of a micro vibration sensor which measures micro vibration of a highest story of the building or a story near the highest story; and a building safety evaluation unit which evaluates soundness of the building from the inter-story displacement obtained by the inter-story displacement measurement unit and the natural period obtained by the natural period measurement unit.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: October 1, 2019
    Assignee: NTT FACILITIES, INC.
    Inventors: Kenichi Yoshida, Shigeto Nagashima, Toshiya Motohi, Kouzou Toyota, Yoshifumi Sugimura, Wataru Gotou, Maki Mochiduki, Hiroyasu Nishii
  • Building Safety Verification System And Building Safety Verification Method
    Publication number: 20150355050
    Abstract: A building safety verification system and a building safety verification method for estimating a degree of damage of a building after an earthquake occurs are provided. The building safety verification system includes: an inter-story displacement measurement unit which obtains, from measurement data of acceleration sensors which measure accelerations of a plurality of stories in a building, an inter-story displacement of each of the stories; a natural period measurement unit which obtains a natural period of microtremor of the building from measurement data of a micro vibration sensor which measures micro vibration of a highest story of the building or a story near the highest story; and a building safety evaluation unit which evaluates soundness of the building from the inter-story displacement obtained by the inter-story displacement measurement unit and the natural period obtained by the natural period measurement unit.
    Type: Application
    Filed: January 8, 2014
    Publication date: December 10, 2015
    Applicant: NTT FACILITIES, INC.
    Inventors: Kenichi YOSHIDA, Shigeto NAGASHIMA, Toshiya MOTOHI, Kouzou TOYOTA, Yoshifumi SUGIMURA, Wataru GOTO, Maki MOCHIDUKI, Hiroyasu NISHII