Patents by Inventor Motomi MATSUSHIMA

Motomi MATSUSHIMA 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).

  • Carbonaceous material and method for producing same
    Patent number: 11634330
    Abstract: The present invention relates to a carbonaceous material which is derived from a plant, having a specific surface area of 1800 to 3000 m2/g as measured by a BET method, a hydrogen element content of 0.42% by mass or less and an oxygen element content of 1.5% by mass or less.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: April 25, 2023
    Assignee: KURARAY CO., LTD.
    Inventors: Shohei Kobayashi, Motomi Matsushima, Taketoshi Okuno, Hideharu Iwasaki
  • Carbonaceous material, and electrode material for electric double layer capacitor, electrode for electric double layer capacitor and electric double layer capacitor that contain carbonaceous material
    Patent number: 11551877
    Abstract: An object of the present invention is to provide a carbonaceous material used for an electric double layer capacitor having a high electrostatic capacity and capable of maintaining the high electrostatic capacity and energy density over a long period and a method for producing the same. The present invention relates to a carbonaceous material having a specific surface area of 1,200 m2/g to 1,800 m2/g according to a BET method, an R-value of 1.2 or more and a G-band half-value width of 70 cm?1 or more according to a Raman spectrum.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: January 10, 2023
    Assignee: KURARAY CO., LTD.
    Inventors: Shohei Kobayashi, Motomi Matsushima, Seiya Kimachi, Hideharu Iwasaki
  • Carbonaceous material, carbonaceous material-containing electrode material for electric double layer capacitor, electrode for electric double layer capacitor, and electric double layer capacitor
    Patent number: 10984963
    Abstract: The present invention relates to a carbonaceous material having a specific surface area of 1,800 m2/g to 3,000 m2/g according to a BET method, an R-value of 1.2 or more and a G-band half-value width of 70 cm?1 or more according to a Raman spectrum.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: April 20, 2021
    Assignee: KURARAYCO., LTD.
    Inventors: Shohei Kobayashi, Motomi Matsushima, Taketoshi Okuno, Hideharu Iwasaki
  • CARBONACEOUS MATERIAL AND METHOD FOR PRODUCING SAME
    Publication number: 20200308006
    Abstract: The present invention relates to a carbonaceous material which is derived from a plant, having a specific surface area of 1000 to 1800 m2/g as measured by a BET method, a hydrogen element content of 0.25% by mass or less and an oxygen element content of 1.5% by mass or less.
    Type: Application
    Filed: October 11, 2017
    Publication date: October 1, 2020
    Applicant: KURARAY CO., LTD.
    Inventors: Shohei KOBAYASHI, Motomi MATSUSHIMA, Seiya KIMACHI, Hideharu IWASAKI
  • CARBONACEOUS MATERIAL AND METHOD FOR PRODUCING SAME
    Publication number: 20190375641
    Abstract: The present invention relates to a carbonaceous material which is derived from a plant, having a specific surface area of 1800 to 3000 m2/g as measured by a BET method, a hydrogen element content of 0.42% by mass or less and an oxygen element content of 1.5% by mass or less.
    Type: Application
    Filed: February 23, 2018
    Publication date: December 12, 2019
    Applicant: KURARAY CO., LTD.
    Inventors: Shohei KOBAYASHI, Motomi MATSUSHIMA, Taketoshi OKUNO, Hideharu IWASAKI
  • CARBONACEOUS MATERIAL, CARBONACEOUS MATERIAL-CONTAINING ELECTRODE MATERIAL FOR ELECTRIC DOUBLE LAYER CAPACITOR, ELECTRODE FOR ELECTRIC DOUBLE LAYER CAPACITOR, AND ELECTRIC DOUBLE LAYER CAPACITOR
    Publication number: 20190378662
    Abstract: The present invention relates to a carbonaceous material having a specific surface area of 1,800 m2/g to 3,000 m2/g according to a BET method, an R-value of 1.2 or more and a G-band half-value width of 70 cm?1 or more according to a Raman spectrum.
    Type: Application
    Filed: February 23, 2018
    Publication date: December 12, 2019
    Applicant: KURARAY CO., LTD.
    Inventors: Shohei KOBAYASHI, Motomi MATSUSHIMA, Taketoshi OKUNO, Hideharu IWASAKI
  • CARBONACEOUS MATERIAL, AND ELECTRODE MATERIAL FOR ELECTRIC DOUBLE LAYER CAPACITOR, ELECTRODE FOR ELECTRIC DOUBLE LAYER CAPACITOR AND ELECTRIC DOUBLE LAYER CAPACITOR THAT CONTAIN CARBONACEOUS MATERIAL
    Publication number: 20190295782
    Abstract: An object of the present invention is to provide a carbonaceous material used for an electric double layer capacitor having a high electrostatic capacity and capable of maintaining the high electrostatic capacity and energy density over a long period and a method for producing the same. The present invention relates to a carbonaceous material having a specific surface area of 1,200 m2/g to 1,800 m2/g according to a BET method, an R-value of 1.2 or more and a G-band half-value width of 70 cm?1 or more according to a Raman spectrum.
    Type: Application
    Filed: April 21, 2017
    Publication date: September 26, 2019
    Applicant: KURARAY CO., LTD.
    Inventors: Shohei KOBAYASHI, Motomi MATSUSHIMA, Seiya KIMACHI, Hideharu IWASAKI