Patents by Inventor Miwa Ito

Miwa Ito 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: 11607624
    Abstract: A method for purifying a nonaqueous liquid substance includes: filling a cartridge container with a macroporous or porous type ion exchange resin in a water-wet state to obtain an ion exchange resin-filled cartridge filled with the macroporous or porous type ion exchange resin before water content reduction; reducing a water content of the macroporous or porous type ion exchange resin in the cartridge container until a water content (A) of the macroporous or porous type ion exchange resin after water content reduction becomes 90 to 97% of a water content (B) of the macroporous or porous type ion exchange resin in a saturated equilibrium state; an initial blowing step of allowing the nonaqueous liquid substance before being purified to pass inside the cartridge container filled with the macroporous or porous type ion exchange resin after water content reduction and discharging an initial blow effluent from inside the cartridge container; and purification.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: March 21, 2023
    Assignee: ORGANO CORPORATION
    Inventors: Noriko Takada, Miwa Ito
  • Publication number: 20220387987
    Abstract: A method for purifying a non-aqueous solvent includes: pretreating by passing a non-aqueous solvent for dehydration treatment through a packed bed of an ion exchange resin that is not yet subjected to dehydration treatment, to remove water in the ion exchange resin; and purifying by passing a non-aqueous solvent to be purified through the packed bed of the ion exchange resin from which water is removed during the pretreating, to purify the non-aqueous solvent to be purified, in which the harmonic-mean particle size of the ion exchange resin is 0.20 to 0.50 mm. According to the present application, a method for purifying a non-aqueous solvent can be provided, the method includes pretreating by removing water in a water-containing ion exchange resin by passing therethrough a non-aqueous solvent for dehydration treatment, in which the amount of the non-aqueous solvent for dehydration treatment used during the pretreating is small.
    Type: Application
    Filed: November 24, 2020
    Publication date: December 8, 2022
    Applicant: ORGANO CORPORATION
    Inventors: Yui SHIOYA, Miwa ITO, Noriko TAKADA, Kaoru NUKUI
  • Publication number: 20210354050
    Abstract: The apparatus for producing a non-aqueous electrolytic solution includes: a moisture adsorption apparatus accommodating zeolite through which an organic non-aqueous solvent passes, an electrolyte addition apparatus for adding an alkali metal salt electrolyte to the organic non-aqueous solvent treated by the moisture adsorption apparatus, and an acid adsorption apparatus accommodating a weakly basic anion exchange resin through which an alkali metal salt electrolyte-containing solution obtained by the electrolyte addition apparatus passes.
    Type: Application
    Filed: September 27, 2019
    Publication date: November 18, 2021
    Applicant: ORGANO CORPORATION
    Inventors: Kenta AIBA, Akira NAKAMURA, Miwa ITO
  • Publication number: 20200384383
    Abstract: A method for purifying a nonaqueous liquid substance includes: filling a cartridge container with a macroporous or porous type ion exchange resin in a water-wet state to obtain an ion exchange resin-filled cartridge filled with the macroporous or porous type ion exchange resin before water content reduction; reducing a water content of the macroporous or porous type ion exchange resin in the cartridge container until a water content (A) of the macroporous or porous type ion exchange resin after water content reduction becomes 90 to 97% of a water content (B) of the macroporous or porous type ion exchange resin in a saturated equilibrium state; an initial blowing step of allowing the nonaqueous liquid substance before being purified to pass inside the cartridge container filled with the macroporous or porous type ion exchange resin after water content reduction and discharging an initial blow effluent from inside of the cartridge container; and purification.
    Type: Application
    Filed: August 24, 2018
    Publication date: December 10, 2020
    Applicant: ORGANO CORPORATION
    Inventors: Noriko TAKADA, Miwa ITO
  • Patent number: 7148735
    Abstract: In a level shifter, in the case where the amplitude voltage of an input signal (i.e., a first power voltage VDDL) input to an input terminal is changed to be higher and the amplitude voltage of an output signal (i.e., a second power voltage VDDH) output from an output terminal is changed to be lower, a fall delay time of the signal output from the output terminal tends to be longer than a rise delay time of the signal. However, an inverted input signal obtained by an inverter is input to a level shifting unit and also to the gate of an N-type transistor, and therefore, the N-type transistor is turned on at the fall of the input signal input to the input terminal, so as to supply a current based on the second power voltage VDDH to an output node of the level shifting unit for assisting the shift into H level performed in the level shifting unit.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: December 12, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Miwa Ito, Kazuyuki Nakanishi, Akio Hirata, Hiroo Yamamoto, Tsuguyasu Hatsuda
  • Publication number: 20050258887
    Abstract: In a level shifter, in the case where the amplitude voltage of an input signal (i.e., a first power voltage VDDL) input to an input terminal is changed to be higher and the amplitude voltage of an output signal (i.e., a second power voltage VDDH) output from an output terminal is changed to be lower, a fall delay time of the signal output from the output terminal tends to be longer than a rise delay time of the signal. However, an inverted input signal obtained by an inverter is input to a level shifting unit and also to the gate of an N-type transistor, and therefore, the N-type transistor is turned on at the fall of the input signal input to the input terminal, so as to supply a current based on the second power voltage VDDH to an output node of the level shifting unit for assisting the shift into H level performed in the level shifting unit.
    Type: Application
    Filed: July 28, 2005
    Publication date: November 24, 2005
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Miwa Ito, Kazuyuki Nakanishi, Akio Hirata, Hiroo Yamamoto, Tsuguyasu Hatsuda
  • Publication number: 20040155693
    Abstract: In a level shifter, in the case where the amplitude voltage of an input signal (i.e., a first power voltage VDDL) input to an input terminal is changed to be higher and the amplitude voltage of an output signal (i.e., a second power voltage VDDH) output from an output terminal is changed to be lower, a fall delay time of the signal output from the output terminal tends to be longer than a rise delay time of the signal. However, an inverted input signal obtained by an inverter is input to a level shifting unit and also to the gate of an N-type transistor, and therefore, the N-type transistor is turned on at the fall of the input signal input to the input terminal, so as to supply a current based on the second power voltage VDDH to an output node of the level shifting unit for assisting the shift into H level performed in the level shifting unit.
    Type: Application
    Filed: January 23, 2004
    Publication date: August 12, 2004
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Miwa Ito, Kazuyuki Nakanishi, Akio Hirata, Hiroo Yamamoto, Tsuguyasu Hatsuda