Patents by Inventor Tomoaki MASUOKA

Tomoaki MASUOKA 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: 11923546
    Abstract: A carbon nanotube dispersion including a carbon nanotube, a solvent, and a dispersant. A highly conductive electrode membrane can be produced as a result of the carbon nanotube using a carbon nanotube dispersion satisfying (1), (2), and (3). (1) An average outer diameter is more than 3 nm and less than 10 nm. (2) A peak is present in a powder X-ray diffraction analysis at a diffraction angle of 2?=25°±2°, and a half value width of the peak is 3° to 6°. (3) When a maximum peak intensity within the range of 1,560 to 1,600 cm?1 in a Raman spectrum is G and a maximum peak intensity within the range of 1,310 to 1,350 cm?1 is D, a G/D ratio is 0.5 to 4.5.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: March 5, 2024
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Yu Morita, Tomoaki Masuoka
  • Publication number: 20230307653
    Abstract: The present disclosure pertains to a carbon nanotube dispersion that contains carbon nanotubes, a dispersing agent, and a solvent, and that satisfies (1)-(4). (1) The ratio of G/D of the carbon nanotubes being 5-100. (2) Not less than 30 parts by mass but less than 250 parts by mass of the dispersing agent being contained with respect to 100 parts by mass of the carbon nanotubes. (3) The complex elastic modulus and the phase angle of the carbon nanotube dispersion at 25° C. and at a frequency of 1 Hz being, not less than 5 Pa but less than 650 Pa, and being not less than 5° but less than 50°, respectively. (4) The BET specific surface area of the carbon nanotubes being 550-1200 m2/g.
    Type: Application
    Filed: October 7, 2021
    Publication date: September 28, 2023
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Yu MORITA, Naoto OKA, Tetsuro IZUMIYA, Tomoaki MASUOKA
  • Patent number: 11352511
    Abstract: Provided are: a dispersant which has good dispersibility and reduces electronic resistance; and a battery having excellent characteristics, which uses this dispersant and is decreased in the ionic resistance and the reaction resistance. A dispersant contains a triazine derivative represented by general formula (1), and an amine or an inorganic base (in general formula (1), R1 is as defined in the description).
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: June 7, 2022
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Akio Himizu, Yu Aotani, Atsushi Koseki, Naoki Deguchi, Tomoaki Masuoka, Tomohiko Hoshino
  • Patent number: 11286164
    Abstract: An electrode membrane having high adhesiveness and electrical conductivity can be produced using carbon nanotubes each of which meets the following requirements (1) and (2). (1) A peak appears at a diffraction angle 2?=25°±2° in powder X-ray diffraction analysis, and the half value width of the peak is 2° or more and less than 3°. (2) The G/D ratio is 1.5 to 5.0, wherein G represents the maximum peak intensity in the range from 1560 to 1600 cm?1 and D represents the maximum peak intensity in the range from 1310 to 1350 cm?1 in Raman spectra.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: March 29, 2022
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Yu Morita, Tomoaki Masuoka
  • Publication number: 20210226222
    Abstract: A carbon nanotube dispersion including a carbon nanotube, a solvent, and a dispersant. A highly conductive electrode membrane can be produced as a result of the carbon nanotube using a carbon nanotube dispersion satisfying (1), (2), and (3). (1) An average outer diameter is more than 3 nm and less than 10 nm. (2) A peak is present in a powder X-ray diffraction analysis at a diffraction angle of 2?=25°±2°, and a half value width of the peak is 3° to 6°. (3) When a maximum peak intensity within the range of 1,560 to 1,600 cm?1 in a Raman spectrum is G and a maximum peak intensity within the range of 1,310 to 1,350 cm?1 is D, a G/D ratio is 0.5 to 4.5.
    Type: Application
    Filed: June 17, 2019
    Publication date: July 22, 2021
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Yu MORITA, Tomoaki MASUOKA
  • Publication number: 20210214229
    Abstract: An electrode membrane having high adhesiveness and electrical conductivity can be produced using carbon nanotubes each of which meets the following requirements (1) and (2). (1) A peak appears at a diffraction angle 2?=25°±2° in powder X-ray diffraction analysis, and the half value width of the peak is 2° or more and less than 3°. (2) The G/D ratio is 1.5 to 5.0, wherein G represents the maximum peak intensity in the range from 1560 to 1600 cm?1 and D represents the maximum peak intensity in the range from 1310 to 1350 cm?1 in Raman spectra.
    Type: Application
    Filed: May 29, 2019
    Publication date: July 15, 2021
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Yu MORITA, Tomoaki MASUOKA
  • Publication number: 20200131379
    Abstract: Provided are: a dispersant which has good dispersibility and reduces electronic resistance; and a battery having excellent characteristics, which uses this dispersant and is decreased in the ionic resistance and the reaction resistance. A dispersant contains a triazine derivative represented by general formula (1), and an amine or an inorganic base (in general formula (1), R1 is as defined in the description).
    Type: Application
    Filed: May 11, 2018
    Publication date: April 30, 2020
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Akio HIMIZU, Yu AOTANI, Atsushi KOSEKI, Naoki DEGUCHI, Tomoaki MASUOKA, Tomohiko HOSHINO