Patents by Inventor Takaaki Kubota

Takaaki Kubota 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).

  • Repairing material for liquid leakage, repairing method for liquid leakage, and pipeline
    Patent number: 12180406
    Abstract: A liquid leakage repair material includes: an inorganic filler in an amount of 20% by mass or greater but 95% by mass or less; and a curable composition that includes a monofunctional (meth) acrylate; a multifunctional (meth) acrylate; and a radical initiator. The target liquid to be prevented from leakage by the liquid leakage repair material is an oil. An oil absorption rate of the liquid leakage repair material after being cured is lower than 10%.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: December 31, 2024
    Assignee: Dexerials Corporation
    Inventors: Yasutaka Mori, Takaaki Kubota, Tetsuya Abe
  • Oil leakage repairing material, oil leakage repairing method, and pipe
    Patent number: 11976769
    Abstract: Provided is an oil leakage repairing material, wherein the oil leakage repairing material is a curable composition, oil absorption of the oil leakage repairing material before curing is 100% or greater, and oil absorption of the oil leakage repairing material after curing is 50% or less.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: May 7, 2024
    Assignee: Dexerials Corporation
    Inventors: Yasutaka Mori, Takeshi Nishio, Takaaki Kubota, Tetsuya Abe
  • MATERIAL FOR LOCATING GAS LEAK, METHOD FOR LOCATING GAS LEAK, MATERIAL FOR REPAIRING GAS LEAK, METHOD FOR REPAIRING GAS LEAK, AND DEVICE FOR REPAIRING GAS LEAK
    Publication number: 20230113758
    Abstract: Provided is a gas leak locating material used for locating a gas leaking position by application thereof at a position suspected to have a gas leak. The gas leak locating material satisfies the following formula: A/B?21.0, where A represents a viscosity (Pa·s) of the gas leak locating material at 25° C. at a shear rate of 0.1 s?1 and B represents a viscosity (Pa·s) of the gas leak locating material at 25° C. at a shear rate of 10 s?1. The gas leak locating material has an elastic modulus E? of 10 MPa or higher at 50° C. after being cured.
    Type: Application
    Filed: March 4, 2021
    Publication date: April 13, 2023
    Inventors: Yasutaka MORI, Takaaki KUBOTA, Tetsuya ABE
  • REPAIRING MATERIAL FOR LIQUID LEAKAGE, REPAIRING METHOD FOR LIQUID LEAKAGE, AND PIPELINE
    Publication number: 20210388248
    Abstract: Provided is a liquid leakage repair material, including: a curable composition, wherein a liquid absorption rate of the liquid leakage repair material after cured is lower than 10%.
    Type: Application
    Filed: August 23, 2019
    Publication date: December 16, 2021
    Applicant: Dexerials Corporation
    Inventors: Yasutaka MORI, Takaaki KUBOTA, Tetsuya ABE
  • OIL LEAKAGE REPAIRING MATERIAL, OIL LEAKAGE REPAIRING METHOD, AND PIPE
    Publication number: 20200124224
    Abstract: Provided is an oil leakage repairing material, wherein the oil leakage repairing material is a curable composition, oil absorption of the oil leakage repairing material before curing is 100% or greater, and oil absorption of the oil leakage repairing material after curing is 50% or less.
    Type: Application
    Filed: April 25, 2019
    Publication date: April 23, 2020
    Inventors: Yasutaka Mori, Takeshi Nishio, Takaaki Kubota, Tetsuya Abe