公开(公告)号：US12194572B2

公开(公告)日：2025-01-14

申请号：US17897567

申请日：2022-08-29

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Takashi Usui ,  Keisuke Ueno ,  Mamoru Shibuya ,  Souichi Hanafusa ,  Tatsuhiko Sakaguchi

IPC: B23K31/12 ,  B23K20/10 ,  G01N29/04 ,  B23K31/00

Abstract: An ultrasonic welding diagnostic method includes: applying a pressing force to an object to be joined so as to generate a surface pressure on a joint surface of the object to be joined; inputting ultrasonic waves to the joint surface; detecting an elastic wave propagating through the object to be joined by at least one sensor at a plurality of different positions; analyzing a signal detected by the sensor to generate an envelope of the signal and calculating information about the envelope; and determining a joint state on the joint surface based on the calculation result of the information.

公开(公告)号：US12098976B2

公开(公告)日：2024-09-24

申请号：US17929482

申请日：2022-09-02

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yousuke Hisakuni ,  Hidefumi Takamine ,  Yuki Ueda ,  Keisuke Ueno ,  Takashi Usui ,  Kazuo Watabe

IPC: G01M5/00 ,  G01M7/08

CPC classification number: G01M5/0066 ,  G01M5/0008 ,  G01M7/08

Abstract: According to one embodiment, a structure evaluation system includes an impact imparting unit, a plurality of sensors, a position locator, and an evaluator. The impact imparting unit applies impacts to a second region different from a first region of a structure to which traveling sections of a vehicle, which travels on the structure, apply impacts. The plurality of sensors detect elastic waves generated in the structure. The position locator locates a position of a source of the elastic waves on the basis of the elastic waves detected by each of the plurality of sensors. The evaluator evaluates a deterioration state of the structure on the basis of a position location result of the position locator.

公开(公告)号：US12104986B2

公开(公告)日：2024-10-01

申请号：US17653291

申请日：2022-03-03

Applicant: Kabushiki Kaisha Toshiba

Inventor： Takashi Usui ,  Hidefumi Takamine ,  Yuki Ueda ,  Keisuke Ueno ,  Yousuke Hisakuni ,  Kazuo Watabe

IPC: G01M7/08

CPC classification number: G01M7/08

Abstract: According to one embodiment, a structure evaluation system includes at least three or more sensors, a position locator, and an evaluator. The three or more sensors are arranged on surfaces different from a surface to which an impact is applied with respect to a structure at different intervals in a first direction of the structure and a second direction orthogonal to the first direction and detects elastic waves generated from the structure. The position locator locates a position of a source in which the elastic waves are generated on the basis of the elastic waves detected by each of the three or more sensors. The evaluator evaluates a deterioration state of the structure on the basis of information based on a position location process of the position locator and information indicating a position where the impact is applied.

公开(公告)号：US12116513B2

公开(公告)日：2024-10-15

申请号：US17929431

申请日：2022-09-02

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Takashi Usui ,  Tetsuya Kugimiya ,  Kazuo Watabe ,  Keisuke Ueno ,  Hidefumi Takamine ,  Junko Hirokawa ,  Yongfang Li ,  Yuki Ueda

IPC: C09J9/02

CPC classification number: C09J9/02 ,  C09J2301/502

Abstract: An adhesion/peeling method according to an embodiment includes adhering a first surface side of an electrically peelable adhesive sheet to a predetermined position of a fixation target object, wherein the electrically peelable adhesive sheet is formed of an electro-peeling adhesive having adhesiveness on the first surface side and a second surface side thereof, and the adhesiveness of the electro-peeling adhesive is lowered due to an input of a voltage; adhering a first electrode of an adherend including the first electrode formed of a conductor to the second surface side of the electrically peelable adhesive sheet; containing a liquid at the predetermined position of the fixation target object to temporarily form a second electrode with conductivity on a surface of the fixation target object; and inputting a predetermined voltage between the first electrode and the second electrode to peel of the electrically peelable adhesive sheet from the fixation target object.

公开(公告)号：US11754530B2

公开(公告)日：2023-09-12

申请号：US17184134

申请日：2021-02-24

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hidefumi Takamine ,  Yuki Ueda ,  Keisuke Ueno ,  Takashi Usui ,  Kazuo Watabe

IPC: G01N29/07

CPC classification number: G01N29/07 ,  G01N2291/0289 ,  G01N2291/2698

Abstract: According to one embodiment, a structure evaluation system includes a wave guide, a first sensor, a second sensor, and a calculation part. The wave guide is formed in a rod shape, is inserted into a hole that is formed at a predetermined depth from a surface of a measurement target, and has one end fixed to a deepest portion of the hole. The first sensor is provided at the other end of the wave guide at a position that is substantially the same as the surface. The second sensor is provided on the surface of the measurement target. The calculation part estimates a depth of damage occurring in the measurement target from the surface on the basis of a first detection value of an elastic wave transmitted to the measurement target which is detected by the first sensor through the wave guide and a second detection value obtained by an elastic wave which is detected by the second sensor.