公开(公告)号：US20230375524A1

公开(公告)日：2023-11-23

申请号：US17913150

申请日：2020-03-26

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hisatoshi KASAHARA ,  Yosuke TAKEUCHI ,  Yosuke OKAMURA ,  Junichiro TAMAMATSU

IPC: G01N33/38

CPC classification number: G01N33/383

Abstract: An assessment device (1) according to the present disclosure includes a determination unit (10) that determines a first period corresponding to a shortest period until deterioration of a concrete structure due to an aging-induced deterioration cause appears and a second period shorter than the first period and corresponding to a longest period until deterioration of the concrete structure due to a material-induced deterioration cause appears and an assessment unit (20) that assesses that a deterioration causing material is used in a concrete structure having, in a checking result indicating a period elapsed from construction of the concrete structure and the presence or absence of deterioration in the concrete structure, the deterioration and the period elapsed from the construction which is not shorter than the second period and is shorter than the first period.

公开(公告)号：US20240272036A1

公开(公告)日：2024-08-15

申请号：US18567339

申请日：2021-06-07

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hisatoshi KASAHARA ,  Yosuke TAKEUCHI ,  Junichiro TAMAMATSU ,  Yosuke OKAMURA

IPC: G01M5/00

CPC classification number: G01M5/0041

Abstract: There is provided a measurement device (1020) including: a height difference acquisition unit (131) that acquires a height difference between two points on a bottom surface of a structure; and a material flexural strength calculation unit (141) that calculates material flexural strength of the structure based on the height difference.

公开(公告)号：US20240264140A1

公开(公告)日：2024-08-08

申请号：US18565039

申请日：2021-05-31

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hisatoshi KASAHARA ,  Yosuke TAKEUCHI ,  Yosuke OKAMURA ,  Junichiro TAMAMATSU

IPC: G01N33/38 ,  G01N3/20

CPC classification number: G01N33/383 ,  G01N3/20

Abstract: A method of producing a resin concrete deterioration model, a method of predicting deterioration of resin concrete, and a resin concrete deterioration model are provided. The method of producing a resin concrete deterioration model adds water to a precursor of resin concrete containing a thermosetting resin, calcium carbonate, and aggregate and kneads the mixture. The resin concrete deterioration model 1 includes a thermosetting resin, calcium carbonate, an aggregate, and water.

公开(公告)号：US20240219054A1

公开(公告)日：2024-07-04

申请号：US18558108

申请日：2021-05-13

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Yasuhiro MATSUMOTO ,  Satoshi SHINOZAKI ,  Junichiro TAMAMATSU

IPC: F24F11/49 ,  F24F110/76 ,  G01N33/00

CPC classification number: F24F11/49 ,  G01N33/0063 ,  G01N33/007 ,  F24F2110/76

Abstract: A failure determination system (100) according to the present disclosure includes a ventilation equipment (2); a gas concentration sensor (1) that outputs a detected value corresponding to a gas concentration, issues an alarm on the basis of the detected value, and transits alarm issuance information; and a control device (3). The control device (3) includes a communication unit (31) which receives alarm issuance information, a ventilation control unit (32) which controls the ventilation equipment (2) to execute a ventilation operation on the basis of the alarm issuance information, and a determination unit (33) which determines whether the gas concentration sensor (1) fails on the basis of the alarm issuance information.

公开(公告)号：US20230314018A1

公开(公告)日：2023-10-05

申请号：US18022953

申请日：2020-08-31

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hisatoshi KASAHARA ,  Yosuke TAKEUCHI ,  Yosuke OKAMURA ,  Junichiro TAMAMATSU

IPC: F24F6/02 ,  F24F11/49 ,  F24F11/52

CPC classification number: F24F6/025 ,  F24F11/49 ,  F24F11/52 ,  E02D29/12

Abstract: A humidity adjustment device (10) according to the present disclosure includes a control unit (11) that acquires humidity information indicating humidity of a space part of a manhole and controls the humidity on the basis of the humidity information.

公开(公告)号：US20230114389A1

公开(公告)日：2023-04-13

申请号：US17798060

申请日：2020-02-06

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Yosuke TAKEUCHI ,  Hisatoshi KASAHARA ,  Yosuke OKAMURA ,  Junichiro TAMAMATSU ,  Tomoki MURAKAMI

IPC: H04B7/145

Abstract: A passive relay device (100) relays radio communication between the inside of a radio wave shielding structure (200) and the outside of the radio wave shielding the structure (200), and the device includes an internal antenna (10) which connects with the inside, an external antenna (20) which connects with the outside, and a connection part (30) which connects the internal antenna (10) and the external antenna (20).

公开(公告)号：US20240269596A1

公开(公告)日：2024-08-15

申请号：US18565120

申请日：2021-06-01

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Wataru ITO ,  Daisuke UCHIBORI ,  Yusuke YOSHIMURA ,  Junichiro TAMAMATSU

IPC: B01D46/48 ,  G01N15/06

CPC classification number: B01D46/48 ,  G01N15/06

Abstract: A dust removal determination device (10) includes: a measurement value acquisition part (112) that acquires a plurality of measurement values at predetermined time intervals of humidity in a structure including an oxygen concentration measurement device (40); a decision part (113) that decides whether or not the humidity is less than a reference value by using the measurement values; and a signal generation part (114) that generates a signal instructing removal of dirt on the oxygen concentration measurement device (40) according to the decision of the decision part (113).

公开(公告)号：US20230411823A1

公开(公告)日：2023-12-21

申请号：US18034384

申请日：2020-11-05

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Yosuke TAKEUCHI ,  Hisatoshi KASAHARA ,  Yosuke OKAMURA ,  Junichiro TAMAMATSU

IPC: H01Q1/22 ,  H01Q1/40 ,  G01D4/00 ,  H01Q1/04

CPC classification number: H01Q1/22 ,  H01Q1/40 ,  G01D4/002 ,  H01Q1/04

Abstract: A composite member (1) according to the present disclosure includes a base material (10) containing a non-metal as a main material, a metal material (20) on which a wiring pattern is formed, the metal material being embedded in the base material (10) to reinforce the base material (10), and a feeding point (21) to the metal material (20).

公开(公告)号：US20230147761A1

公开(公告)日：2023-05-11

申请号：US17913148

申请日：2020-03-25

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Yosuke TAKEUCHI ,  Junichiro TAMAMATSU ,  Yosuke OKAMURA ,  Hisatoshi KASAHARA

IPC: C23F11/18

CPC classification number: C23F11/182

Abstract: An aqueous solution (20) is an aqueous solution used for repairing an aluminum-coated steel wire (10) with defects leading to there being iron, which contains magnesium chloride having a concentration of 10% or more, and magnesium sulfate having a concentration of 6% or more, and which allows an anticorrosion layer made of an alloy component of magnesium and aluminum to be formed.

公开(公告)号：US20220390430A1

公开(公告)日：2022-12-08

申请号：US17776265

申请日：2019-11-13

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Yosuke TAKEUCHI ,  Yosuke OKAMURA ,  Junichiro TAMAMATSU

IPC: G01N33/38 ,  G01M5/00 ,  G01M99/00

Abstract: An estimation method includes: an acquisition step (S101) of acquiring deflection stress information that indicates a relationship between a deflection and a tensile stress of a specimen (200) of a reinforced concrete structure; and a derivation step (S102) of deriving an estimation formula for estimating a depth of a crack generated in the reinforced concrete structure when a deflection of the reinforced concrete structure is no less than a first deflection of the specimen at a start of a generation of the crack, and is no greater than a second deflection of the specimen at an end of the generation of the crack.