Patents by Inventor Miho ARIYOSHI

Miho ARIYOSHI 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).

  • Gas separation method and gas separation membrane
    Patent number: 11547968
    Abstract: The present invention provides: a gas separation method which is capable of desirably separating a slight amount of a component from a mixed gas under mild conditions such that the pressure difference between both sides of a gas separation membrane is 1 atmosphere or less; and a gas separation membrane which is suitable for use in this gas separation method. According to the present invention, in a gas separation method wherein a specific gas (A) in a mixed gas, which contains the specific gas (A) at a concentration of 1,000 ppm by mass or less, is selectively permeated with use of a gas separation membrane, an extremely thin gas separation membrane that has a film thickness of 1 ?m or less is used, so that the gas (A) is desirably separated under mild conditions such that the pressure difference between both sides of the gas separation membrane is 1 atmosphere or less.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: January 10, 2023
    Assignees: TOKYO OHKA KOGYO CO., LTD., NANOMEMBRANE TECHNOLOGIES, INC.
    Inventors: Takuya Noguchi, Takahiro Senzaki, Toshiyuki Ogata, Toyoki Kunitake, Shigenori Fujikawa, Miho Ariyoshi
  • GAS SEPARATION METHOD AND GAS SEPARATION MEMBRANE
    Publication number: 20210362091
    Abstract: The present invention provides: a gas separation method which is capable of desirably separating a slight amount of a component from a mixed gas under mild conditions such that the pressure difference between both sides of a gas separation membrane is 1 atmosphere or less; and a gas separation membrane which is suitable for use in this gas separation method. According to the present invention, in a gas separation method wherein a specific gas (A) in a mixed gas, which contains the specific gas (A) at a concentration of 1,000 ppm by mass or less, is selectively permeated with use of a gas separation membrane, an extremely thin gas separation membrane that has a film thickness of 1 ?m or less is used, so that the gas (A) is desirably separated under mild conditions such that the pressure difference between both sides of the gas separation membrane is 1 atmosphere or less.
    Type: Application
    Filed: August 3, 2018
    Publication date: November 25, 2021
    Applicants: TOKYO OHKA KOGYO CO., LTD., NanoMembrane Technologies, Inc.
    Inventors: Takuya NOGUCHI, Takahiro SENZAKI, Toshiyuki OGATA, Toyoki KUNITAKE, Shigenori FUJIKAWA, Miho ARIYOSHI