Patents by Inventor Atsushi Sawamoto

Atsushi Sawamoto 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).

  • Multilayer film
    Patent number: 10751980
    Abstract: A laminated film includes, at least on one side thereof, a layer containing a hardening resin, having a total thickness of 1 to 100 ?m, a light transmittance of 70% or more at a wavelength of 400 nm, a Young's modulus of 5 GPa or more when applying a nanoindenter to make a 1 ?m depression in the thickness direction into the surface of the hardening layer, and undergoing a rate of deformation of 500 ppm or less after applying a stress of 0.5 MPa for 30 minutes.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: August 25, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Atsushi Sawamoto, Masanori Sueoka, Kazuma Matsui, Kohei Sato, Akimitsu Tsukuda, Junji Michizoe, Do Kyun Kim
  • MULTILAYER FILM
    Publication number: 20190217587
    Abstract: A laminated film includes, at least on one side thereof, a layer containing a hardening resin, having a total thickness of 1 to 100 ?m, a light transmittance of 70% or more at a wavelength of 400 nm, a Young's modulus of 5 GPa or more when applying a nanoindenter to make a 1 ?m depression in the thickness direction into the surface of the hardening layer, and undergoing a rate of deformation of 500 ppm or less after applying a stress of 0.5 MPa for 30 minutes.
    Type: Application
    Filed: June 14, 2017
    Publication date: July 18, 2019
    Inventors: Atsushi Sawamoto, Masanori Sueoka, Kazuma Matsui, Kohei Sato, Akimitsu Tsukuda, Junji Michizoe, Do Kyun Kim
  • Polymer-ion-permeable membrane, composite-ion-permeable membrane, battery electrolyte membrane, and electrode composite
    Patent number: 10305143
    Abstract: An ion-permeable membrane is substantially free of holes and has excellent ion permeability, heat resistance, strength, and flexibility, and can form a battery electrolyte membrane that uses the ion-permeable membrane, and an electrode composite. The polymer-ion-permeable membrane has a per-unit-thickness puncture strength of 0.3-3.0 N/?m and a membrane resistance of 3.0-100.0 ?·cm2 at 25° C.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: May 28, 2019
    Assignee: Toray Industries, Inc.
    Inventors: Atsushi Sawamoto, Dai Nishimura, Akimitsu Tsukuda
  • Polymer-ion-permeable membrane, composite-ion-permeable membrane, battery electrolyte membrane, and electrode composite
    Patent number: 10173179
    Abstract: An ion-permeable membrane is substantially free of holes and has excellent ion permeability, heat resistance, strength, and flexibility. A battery electrolyte membrane uses the ion-permeable membrane, and can form an electrode composite body. The polymer-ion-permeable membrane has an average radius of free volume of 0.32-0.50 nm.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: January 8, 2019
    Assignee: Toray Industries, Inc.
    Inventors: Atsushi Sawamoto, Dai Nishimura, Akimitsu Tsukuda
  • Aromatic polyamide porous film, separator for battery, and battery
    Patent number: 10044017
    Abstract: An aromatic polyamide porous film has a total number of branch points of pores in an area of 3 cubic micrometers obtained by three-dimensional structural analysis is 2,000 to 20,000, which ensures high rate characteristics and is also capable of suppressing deterioration of cycle characteristics and storage characteristics as well as abnormal heat generation, when used as a separator for battery, and also has excellent heat resistance; and a separator for battery and a battery, each including the aromatic polyamide porous film.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: August 7, 2018
    Assignee: Toray Industries, Inc.
    Inventors: Atsushi Sawamoto, Kenta Nishibara, Akimitsu Tsukuda
  • POLYMER-ION-PERMEABLE MEMBRANE, COMPOSITE-ION-PERMEABLE MEMBRANE, BATTERY ELECTROLYTE MEMBRANE, AND ELECTRODE COMPOSITE
    Publication number: 20170358817
    Abstract: An ion-permeable membrane is substantially free of holes and has excellent ion permeability, heat resistance, strength, and flexibility, and can form a battery electrolyte membrane that uses the ion-permeable membrane, and an electrode composite. The polymer-ion-permeable membrane has a per-unit-thickness puncture strength of 0.3-3.0 N/?m and a membrane resistance of 3.0-100.0 ?·cm2 at 25° C.
    Type: Application
    Filed: December 9, 2015
    Publication date: December 14, 2017
    Inventors: Atsushi Sawamoto, Dai Nishimura, Akimitsu Tsukuda
  • POLYMER-ION-PERMEABLE MEMBRANE, COMPOSITE-ION-PERMEABLE MEMBRANE, BATTERY ELECTROLYTE MEMBRANE, AND ELECTRODE COMPOSITE
    Publication number: 20170320021
    Abstract: An ion-permeable membrane is substantially free of holes and has excellent ion permeability, heat resistance, strength, and flexibility. A battery electrolyte membrane uses the ion-permeable membrane, and can form an electrode composite body. The polymer-ion-permeable membrane has an average radius of free volume of 0.32-0.50 nm.
    Type: Application
    Filed: December 9, 2015
    Publication date: November 9, 2017
    Inventors: Atsushi Sawamoto, Dai Nishimura, Akimitsu Tsukuda
  • AROMATIC POLYAMIDE POROUS FILM, SEPARATOR FOR BATTERY, AND BATTERY
    Publication number: 20140329155
    Abstract: An aromatic polyamide porous film has a total number of branch points of pores in an area of 3 cubic micrometers obtained by three-dimensional structural analysis is 2,000 to 20,000, which ensures high rate characteristics and is also capable of suppressing deterioration of cycle characteristics and storage characteristics as well as abnormal heat generation, when used as a separator for battery, and also has excellent heat resistance; and a separator for battery and a battery, each including the aromatic polyamide porous film.
    Type: Application
    Filed: September 4, 2012
    Publication date: November 6, 2014
    Applicant: Toray Industries, Inc.
    Inventors: Atsushi Sawamoto, Kenta Nishibara, Akimitsu Tsukuda
  • Aromatic polyamide porous film and separator for capacitor or battery using the same
    Patent number: 8815384
    Abstract: A porous film includes aromatic polyamide as a constituent component that has high heat resistance, high air permeability and high affinity to electrolytes. It is a porous aromatic polyamide film including aromatic polyamide and a hydrophilic polymer, wherein the hydrophilic polymer accounts for 12 to 50 parts by mass per 100 parts by mass of the aromatic polyamide, the thickness being 2 to 30 micrometers, the Gurley air permeability being 0.5 to 300 seconds/100 ml, and the thermal shrinkage rate being ?0.5 to 1.0% at 200° C.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: August 26, 2014
    Assignee: Toray Industries, Inc.
    Inventors: Atsushi Sawamoto, Kenta Nishibara, Akimitsu Tsukuda
  • AROMATIC POLYAMIDE POROUS FILM AND SEPARATOR FOR CAPACITOR OR BATTERY USING THE SAME
    Publication number: 20120308898
    Abstract: A porous film includes aromatic polyamide as a constituent component that has high heat resistance, high air permeability and high affinity to electrolytes. It is a porous aromatic polyamide film including aromatic polyamide and a hydrophilic polymer, wherein the hydrophilic polymer accounts for 12 to 50 parts by mass per 100 parts by mass of the aromatic polyamide, the thickness being 2 to 30 micrometers, the Gurley air permeability being 0.5 to 300 seconds/100 ml, and the thermal shrinkage rate being ?0.5 to 1.0% at 200° C.
    Type: Application
    Filed: December 3, 2010
    Publication date: December 6, 2012
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Atsushi Sawamoto, Kenta Nishibara, Akimitsu Tsukuda