Patents by Inventor Katsufumi Hashimoto

Katsufumi Hashimoto 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).

  • Patent number: 11639880
    Abstract: According to one embodiment, a structure evaluation system according to an embodiment includes a plurality of sensors, a position locator, and an evaluator. The plurality of sensors detect elastic waves. The position locator locates positions of elastic wave sources by using the elastic waves among the plurality of elastic waves respectively detected by the plurality of sensors having an amplitude exceeding a threshold value determined according to positions of the sources of the plurality of elastic waves and the positions of the plurality of disposed sensors. The evaluator evaluates a deteriorated state of the structure on the basis of results of the position locating of the elastic wave sources which is performed by the position locator.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: May 2, 2023
    Assignees: Kabushiki Kaisha Toshiba, Kyoto University
    Inventors: Tomoki Shiotani, Katsufumi Hashimoto, Hidefumi Takamine, Kazuo Watabe
  • Publication number: 20220034749
    Abstract: According to one embodiment, a structure evaluation system according to an embodiment includes a plurality of sensors, a position locator, and an evaluator. The plurality of sensors detect elastic waves. The position locator locates positions of elastic wave sources by using the elastic waves among the plurality of elastic waves respectively detected by the plurality of sensors having an amplitude exceeding a threshold value determined according to positions of the sources of the plurality of elastic waves and the positions of the plurality of disposed sensors. The evaluator evaluates a deteriorated state of the structure on the basis of results of the position locating of the elastic wave sources which is performed by the position locator.
    Type: Application
    Filed: October 13, 2021
    Publication date: February 3, 2022
    Applicants: Kabushiki Kaisha Toshiba, Kyoto University
    Inventors: Tomoki SHIOTANI, Katsufumi HASHIMOTO, Hidefumi TAKAMINE, Kazuo WATABE
  • Patent number: 11181439
    Abstract: According to one embodiment, a structure evaluation system according to an embodiment includes a plurality of sensors, a position locator, and an evaluator. The plurality of sensors detect elastic waves. The position locator locates positions of elastic wave sources by using the elastic waves among the plurality of elastic waves respectively detected by the plurality of sensors having an amplitude exceeding a threshold value determined according to positions of the sources of the plurality of elastic waves and the positions of the plurality of disposed sensors. The evaluator evaluates a deteriorated state of the structure on the basis of results of the position locating of the elastic wave sources which is performed by the position locator.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: November 23, 2021
    Assignees: Kabushiki Kaisha Toshiba, Kyoto University
    Inventors: Tomoki Shiotani, Katsufumi Hashimoto, Hidefumi Takamine, Kazuo Watabe
  • Publication number: 20210181157
    Abstract: According to one embodiment, a structure evaluation system of the embodiments includes a plurality of sensors, a position locator, and an evaluator. The plurality of sensors detect elastic waves. The position locator locates elastic wave sources on the basis of a plurality of elastic waves detected by each of the plurality of sensors. The evaluator evaluates a deterioration state of a structure in accordance with a presence or absence of a sensor and an elastic wave source distribution which shows a position of the elastic wave sources obtained on the basis of a result of locating of the elastic wave sources.
    Type: Application
    Filed: February 25, 2021
    Publication date: June 17, 2021
    Applicants: Kabushiki Kaisha Toshiba, Kyoto University
    Inventors: Hidefumi TAKAMINE, Yuki UEDA, Kazuo WATABE, Tomoki SHIOTANI, Katsufumi HASHIMOTO
  • Publication number: 20190383696
    Abstract: According to one embodiment, a structure evaluation system according to an embodiment includes a plurality of sensors, a position locator, and an evaluator. The plurality of sensors detect elastic waves. The position locator locates positions of elastic wave sources by using the elastic waves among the plurality of elastic waves respectively detected by the plurality of sensors having an amplitude exceeding a threshold value determined according to positions of the sources of the plurality of elastic waves and the positions of the plurality of disposed sensors. The evaluator evaluates a deteriorated state of the structure on the basis of results of the position locating of the elastic wave sources which is performed by the position locator.
    Type: Application
    Filed: August 27, 2019
    Publication date: December 19, 2019
    Applicants: Kabushiki Kaisha Toshiba, Kyoto University
    Inventors: Tomoki Shiotani, Katsufumi Hashimoto, Hidefumi Takamine, Kazuo Watabe