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23 条记录 (耗时 0.017 秒)

    Coating Film Evaluation Structure and Evaluation Method
    1.
    发明公开
    Coating Film Evaluation Structure and Evaluation Method 审中-公开

    公开(公告)号：US20240102797A1

    公开(公告)日：2024-03-28

    申请号：US18256246

    申请日：2020-12-09

    申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    发明人： Azusa Ishii ,  Shingo Mineta ,  Soichi Oka

    IPC分类号： G01B21/08 ,  G01N17/00

    CPC分类号： G01B21/08 ,  G01N17/00

    摘要： A coating film evaluation structure includes a laminate including a first sheet, a second sheet, and a third sheet which are laminated. The second sheet is disposed on the first sheet, and the third sheet is disposed on the second sheet. In the laminate, the area of each sheet gradually reduces in the lamination direction, and a stepped portion is provided at an end portion. The coating film to be evaluated and the plurality of sheets have different colors. The coating film evaluation structure includes a coating film layer formed on the sheet having the largest area among the plurality of sheets so as to cover the other sheets and having a flat surface.

    Method for Measuring Acid Anhydride Content
    2.
    发明申请
    Method for Measuring Acid Anhydride Content 有权

    公开(公告)号：US20220034828A1

    公开(公告)日：2022-02-03

    申请号：US17417672

    申请日：2019-12-13

    申请人： Nippon Telegraph and Telephone Corporation

    发明人： Azusa Ishii ,  Takashi Miwa ,  Masamitsu Watanabe ,  Soichi Oka

    IPC分类号： G01N24/08

    摘要： In a first step, a sample formed of a polyester or decomposition products of a polyester is dissolved in a pretreatment liquid containing a secondary amine to obtain a reaction product (amide) of the sample. In a second step, the obtained reaction product, amide, is mixed into a solvent containing deuterated chloroform and deuterated 1,1,1,3,3,3-hexafluoro-2-propanol to fabricate a sample liquid. In a third step, the amount of the amide in the sample liquid is measured through a nuclear magnetic resonance spectroscopy aiming at hydrogen atoms to determine the amount of acid anhydride in the sample.

    Corrosion Testing Method and Corrosion Testing Device
    3.
    发明申请
    Corrosion Testing Method and Corrosion Testing Device 有权

    公开(公告)号：US20210116357A1

    公开(公告)日：2021-04-22

    申请号：US17047591

    申请日：2019-04-05

    申请人： Nippon Telegraph and Telephone Corporation

    发明人： Takashi Miwa ,  Azusa Ishii

    IPC分类号： G01N17/04 ,  G01N17/00

    摘要： A painting fiber probe having a measurement surface on which a coating film is formed with the same painting specification as that of a sample (painted steel sheet) is placed in a test tank together with the sample. A cycle consisting of three steps of saline water spraying, drying and wetting is repeated on the sample and the painting fiber probe. In the drying step of the cycle, absorbance at a specific wavelength of the coating film formed on the painting fiber probe is measured at a regular interval and drying is ended when the measured absorbance satisfies a predetermined condition.

    COATING MATERIAL
    4.
    发明公开
    COATING MATERIAL 审中-公开

    公开(公告)号：US20240150613A1

    公开(公告)日：2024-05-09

    申请号：US18257545

    申请日：2020-12-15

    申请人： Nippon Telegraph and Telephone Corporation

    发明人： Azusa Ishii ,  Takashi Miwa ,  Shingo Mineta ,  Soichi Oka

    IPC分类号： C09D201/00 ,  C09D1/00

    CPC分类号： C09D201/00 ,  C09D1/00

    摘要： A coating material is a coating material used for applying a coating film formed on a coating made of a zinc-containing material formed in contact with a surface of a metal material and is composed of a binder, a first inorganic material, and a second inorganic material. The binder is composed of an organic resin and does not contain metallic zinc and a zinc alloy. The first inorganic material is composed of a sulfate having a solubility lower than 5 g/100 mL with respect to water. The second inorganic material is soluble in water, exhibits alkalinity if dissolved in water, and has a solubility lower than 5 g/100 mL with respect to water.

    Hydrogen Analysis System
    6.
    发明申请
    Hydrogen Analysis System 有权

    公开(公告)号：US20210293694A1

    公开(公告)日：2021-09-23

    申请号：US17258381

    申请日：2019-06-28

    申请人： Nippon Telegraph and Telephone Corporation

    发明人： Yosuke Takeuchi ,  Azusa Ishii ,  Takuya Kamisho ,  Soichi Oka

    IPC分类号： G01N17/02 ,  G01N27/28 ,  G01N27/416 ,  G01N1/32

    摘要： A test time for measuring hydrogen diffusion in a steel material is improved. The reproducibility of a position where hydrogen exists in the steel material is improved. A control terminal controls a solution supply/discharge control device, a gas supply control device, a first potentiostat/galvanostat, and a second potentiostat/galvanostat on the basis of a predefined procedure, so that a plurality of processing steps, which are performed for analyzing hydrogen diffused from the inside to the surface of a steel material to be measured, are performed continuously. Further, the processing of inactivating the surface of the steel material to be measured is performed before the main processing using a metal ion replacement method, or an inert gas is injected into the solution during the main processing.

    Molecular Weight Measurement Method and Solvent for Use in Measurement
    7.
    发明申请
    Molecular Weight Measurement Method and Solvent for Use in Measurement 有权

    公开(公告)号：US20210181129A1

    公开(公告)日：2021-06-17

    申请号：US17056217

    申请日：2019-05-10

    申请人： Nippon Telegraph and Telephone Corporation

    发明人： Azusa Ishii ,  Takashi Miwa

    IPC分类号： G01N24/08

    摘要： In a first step, a sample liquid is fabricated by mixing a sample formed of a polyester or decomposition products of a polyester into a solvent. The solvent used here contains chloroform and 2,2,2-trifluoroethanol and has an organic base added thereto. The organic base is at least one of a primary amine, a secondary amine, a tertiary amine and a heterocyclic amine. Next, in a second step, each of the amount of the terephthalic acid terminal and the amount of the hydroxy group terminal in the sample liquid is measured through a nuclear magnetic resonance spectroscopy aiming at hydrogen atoms. Subsequently, in a third step, the number average molecular weight of the sample is calculated from the amount of the terephthalic acid terminal and the amount of the hydroxy group terminal measured in the second step.

    Molecular weight measurement method and solvent for use in measurement
    8.
    发明授权
    Molecular weight measurement method and solvent for use in measurement 有权

    公开(公告)号：US11921068B2

    公开(公告)日：2024-03-05

    申请号：US17056217

    申请日：2019-05-10

    申请人： Nippon Telegraph and Telephone Corporation

    发明人： Azusa Ishii ,  Takashi Miwa

    IPC分类号： G01N24/08

    CPC分类号： G01N24/08 ,  G01N24/088

    摘要： In a first step, a sample liquid is fabricated by mixing a sample formed of a polyester or decomposition products of a polyester into a solvent. The solvent used here contains chloroform and 2,2,2-trifluoroethanol and has an organic base added thereto. The organic base is at least one of a primary amine, a secondary amine, a tertiary amine and a heterocyclic amine. Next, in a second step, each of the amount of the terephthalic acid terminal and the amount of the hydroxy group terminal in the sample liquid is measured through a nuclear magnetic resonance spectroscopy aiming at hydrogen atoms. Subsequently, in a third step, the number average molecular weight of the sample is calculated from the amount of the terephthalic acid terminal and the amount of the hydroxy group terminal measured in the second step.