Patents Assigned to Asahi Kasei Kabushiki Kaisha
  • Polymer composition and ion-exchange membrane
    Patent number: 11746169
    Abstract: Provided are a polymer composition that can suppress bubbling during membrane formation and peeling of a laminated membrane and an ion-exchange membrane. The polymer composition is a polymer composition including: a fluorine-containing copolymer including a unit (a) derived from a perfluorovinyl compound having a side chain having an ionic group and a unit (b) derived from a fluoroolefin; and a low molecular weight compound (a) having a functional group represented by —COOX (X is H, NH4, or a monovalent metal ion), wherein a content of the low molecular weight compound (a) is 600 ppm or less based on a mass of the polymer composition.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: September 5, 2023
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Hiroyuki Ueyama
  • METHACRYLIC RESIN COMPOSITION AND MOLDED ARTICLE
    Publication number: 20230272204
    Abstract: The present disclosure is directed to providing a methacrylic resin composition and a molded article having excellent performances to allow light to be favorably transmitted and sufficiently diffused, and having good heat deformation resistance and long-term use property. A methacrylic resin composition includes 0.5 to 6 parts by mass of a light diffusing filler having an average particle diameter of 0.2 to 10 ?m and 0.005 to 0.3 parts by mass of an ultraviolet absorber with respect to 100 parts by mass of a methacrylic resin, and has an intermediate point glass transition temperature of 105° C. or higher.
    Type: Application
    Filed: August 10, 2021
    Publication date: August 31, 2023
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Katsura TSUJIMOTO
  • Method for Manufacturing Separator for Electrical Storage Device
    Publication number: 20230275319
    Abstract: Provided is an inspection device or a manufacturing method for a separator having a thermoplastic polymer layer. A separator S includes a substrate, and a thermoplastic polymer layer disposed on a portion of one side or both sides of the substrate. The present invention is characterized by including a step for inspecting the surface of the separator S, wherein the separator is inspected by using an inspection device having a camera 2 and a light source 1 that irradiates an inspection portion of the separator with light at an incident angle of 60° to 90°.
    Type: Application
    Filed: May 11, 2021
    Publication date: August 31, 2023
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Hitoshi Takamori, Takeshi Suzuki
  • Polyurethane Elastic Fiber, Gather Member Containing Same, and Sanitary Material
    Publication number: 20230272558
    Abstract: The present invention provides a thermoplastic polyurethane elastic fiber which exhibits excellent runnability during the production process of paper diapers. A polyurethane elastic fiber according to the present invention has the following characteristics: (a) the polyurethane elastic fiber is composed of a multifilament; (b) the total fineness thereof is from 160 dtex to 2,000 dtex; (c) the outflow start temperature thereof is from 160° C. to 220° C. as measured by a flow tester at an extrusion load of 49 N, a start temperature of 120° C. and a heating rate of 3° C./min; and (d) the bonding force between single yarns is 0.4 cN or more.
    Type: Application
    Filed: September 7, 2021
    Publication date: August 31, 2023
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Ryosuke Yokoo, Keiichi Toyoda, Shogo Ikeda
  • METHOD FOR WASHING HOLLOW FIBER MEMBRANE MODULE
    Publication number: 20230271140
    Abstract: Provided is a method for washing a hollow fiber membrane module which comprises a hollow fiber membrane for filtering raw water containing a suspended component, said method comprising, in the following order, a first washing step for removing a suspended component that is accumulated on the hollow fiber membrane and a second washing step for carrying out an air scrubbing process in which gas is caused to pass through at least to the raw water side of the hollow fiber membrane, wherein, out of water that existed in the hollow fiber membrane module before washing, water in an amount corresponding to not less than 50 vol % of the capacity of the hollow fiber membrane module is removed in the first washing step.
    Type: Application
    Filed: May 5, 2023
    Publication date: August 31, 2023
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Daisuke OKAMURA, Yutaka GOJO, Yuji KIMURA
  • Composite Hollow Fiber Membrane Module and Method for Producing Same
    Publication number: 20230264150
    Abstract: This forward-osmosis composite hollow fiber membrane module has hollow fiber bundles, wherein: the hollow fibers are each such that a separation active layer of a high-molecular polymer thin film is provided on the inner surface of a macroporous hollow fiber support film formed from a high-molecular polymer including polyketone; the film surface area of the hollow fiber bundles is 100 cm2 or greater; and the coefficient of variation of the average thickness of the separation active layer in the radial and thickness directions of the hollow fiber bundle is 0-60%, said coefficient being calculated through a method for measuring the mass of the separation active layer portion in a scanning electron microscope image in which a thickness-direction cross section of the separation active layer is imaged.
    Type: Application
    Filed: June 29, 2021
    Publication date: August 24, 2023
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Ryoichi Takada, Noboru Kubota, Keitaro Suzumura, Takahiro Osaki
  • YARN INSPECTION SYSTEM AND SCREENING METHOD
    Publication number: 20230267597
    Abstract: An inspection system of a filament yarn, including: an irradiation means configured to irradiate the filament yarn with inspection light; a measurement means configured to measure with an area sensor a luminance level of a shade and a background of the filament yarn; an image processing means configured to obtain image information on the basis of information obtained from the area sensor; and a determination means configured to decide a type and a frequency of an error from the image information and determine an inspection result of the filament yarn on the basis of a threshold value according to the error is provided.
    Type: Application
    Filed: February 24, 2022
    Publication date: August 24, 2023
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Hiroshi Tsukumo, Shinichiro Tanaka, Yoshinobu Fujimura, Fuminori Murai
  • Packaged Molded Article, Crosslinking Rubber Composition, Method for Producing Packaged Molded Article, Method for Producing Crosslinking Rubber Composition, and Tread for Tire
    Publication number: 20230257560
    Abstract: A packaged molded article containing: a molded article of a rubber-like polymer having a weight average molecular weight of 100,000 or more, and a packaging film packaging the molded article, wherein a portion facing the molded article, of the packaging film, satisfies the following conditions (1) and (2): <Condition (1)> the portion has 50 or more openings; <Condition (2)> a total area ratio of the openings is 0.1% or more and 15% or less with respect to a total area of the portion facing the molded article.
    Type: Application
    Filed: August 6, 2021
    Publication date: August 17, 2023
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Atsushi Yasumoto, Tsuneaki Konomoto, Hideki Yamasaki, Yoshifumi Araki
  • SKELETAL MUSCLE PRECURSOR CELLS AND METHOD FOR PURIFYING SAME, COMPOSITION FOR TREATING MYOGENIC DISEASES, AND METHOD FOR PRODUCING CELL GROUP CONTAINING SKELETAL MUSCLE PRECURSOR CELLS
    Publication number: 20230256024
    Abstract: The present invention provides a composition that is for treating myogenic diseases and that contains a cell group including skeletal muscle precursor cells differentiation-induced from pluripotent stem cells, the composition being characterized in that the cell group includes the skeletal muscle precursor cells that are Pax7-positive, and are CD146 (MCAM)-positive and CD57-negative on the surface thereof. The present invention also provides a method for purifying skeletal muscle precursor cells.
    Type: Application
    Filed: July 13, 2021
    Publication date: August 17, 2023
    Applicants: KYOTO UNIVERSITY, ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Hidetoshi SAKURAI, Mingming ZHAO, Hiroki KATO, Atsutoshi TAZUMI
  • Polymer electrolyte membrane, membrane electrode assembly, polymer electrolyte fuel cell, and process for producing polymer electrolyte membrane
    Patent number: 11728500
    Abstract: Provided is a polymer electrolyte membrane comprising: (a) a polyelectrolyte having an ion exchange capacity of from 0.5 to 3.0 meq/g; and (b) at least one scandium compound selected from the group consisting of scandium oxide, scandium acetate, scandium sulfate, scandium nitrate, and scandium carbonate, wherein a polyethylene glycol (PEG)-derived compound in the polymer electrolyte membrane has a total content of 10 ppm or less.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: August 15, 2023
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Yuichi Inoue, Hitoshi Shobukawa, Naoki Sakamoto, Akihiro Kurima
  • Airbag Patch Cloth
    Publication number: 20230228008
    Abstract: The present disclosure provides an airbag patch cloth that has superior packability and cutting resistance upon deployment of the airbag, and which is particularly suitable for a curtain airbag. The airbag patch cloth is a woven fabric which satisfies the following equations: Px=E/(Tx×Fx)×1000, Py=E/(Ty×Fy)×1000, wherein E indicates the kinetic energy (J) of a block and a blade. In the equations, Tx indicates the average value (mm) of a torn length in the warp direction, Fx indicates the linear density (dtex) of the warp constituting the fabric, Ty indicates the average value (mm) of a torn length in the weft direction, and Fy indicates the linear density (dtex) of the weft constituting the fabric. At least one of dynamic tear characteristics Px and Py is greater than or equal to 0.8.
    Type: Application
    Filed: June 16, 2021
    Publication date: July 20, 2023
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventor: Takumi Kabeya
  • TRANSPARENT HEATER AND DESIGNING METHOD FOR THE SAME
    Publication number: 20230232539
    Abstract: A transparent-heater designing method by an information processing device for a transparent heater comprising a transparent base material and a heater unit, the heater unit comprising a conductive pattern formed on a surface of or inside the transparent base material, the transparent-heater designing method comprising a designing step of estimating, by the information processing device, designing information DI based on a transmissivity T and a heat generation capacity C as targets of the transparent heater, the designing information DI comprising information related to thickness of a conductive thin line comprised in the conductive pattern and information related to a pattern shape PAT of the conductive pattern.
    Type: Application
    Filed: August 30, 2021
    Publication date: July 20, 2023
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Sora HIDA
  • ELECTROLYSIS SYSTEM AND METHOD OF USE OF THE SAME
    Publication number: 20230227985
    Abstract: An object of the present disclosure is to suppress mixing of gases generated during an operation when supply of electric power is stopped, to thereby shorten the time required for restarting after the electric power is stopped. An electrolysis system of the present disclosure includes an electrolyzer including an electrolytic cell in which an anode and a cathode are overlapped with each other having a diaphragm interposed therebetween, and a liquid surface level control unit which is operated when an electric conduction to the electrolyzer is stopped to adjust a liquid surface level of an electrolytic solution in the electrolytic cell.
    Type: Application
    Filed: April 7, 2021
    Publication date: July 20, 2023
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Yasuhiro FUJITA, Hisanao AOKI, Yousuke UCHINO, Jun OHNO
  • POLYCARBONATE POLYOL COMPOSITION
    Publication number: 20230227598
    Abstract: Provided is a polycarbonate polyol composition comprising an unmodified polycarbonate polyol having a carbonate structure represented by the following formula (A), and a modified polycarbonate polyol having a carbonate structure represented by the following formula (A) and a urethane structure represented by the following formula (B), wherein 90% by mol or more of the total quantity of terminal groups of all the compounds in the composition is hydroxy groups, and the number of functional groups calculated according to the following expression (II) is 2.00 to 10.00: The number of functional groups=Mn×OHV/56.
    Type: Application
    Filed: October 1, 2021
    Publication date: July 20, 2023
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Yasufumi KAWAI
  • Modified Microorganisms and Production Method of Compounds
    Publication number: 20230227865
    Abstract: A modified microorganism containing a genetic modification that suppresses a transcription factor that controls expression of pyruvate dehydrogenase, in which the microorganism has and a production pathway of a C6 compound, and in which the C6 compound is at least one compound selected from the group consisting of adipic acid, hexamethylenediamine, 1,6-hexanediol, 6-aminohexanoic acid, 6-amino-1-hexanol, 6-hydroxyhexanoic acid, 3-oxoadipic acid, 3-hydroxyadipic acid, and 2,3-dehydroadipic acid.
    Type: Application
    Filed: January 11, 2023
    Publication date: July 20, 2023
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Yutaro Yamada, Ryo Miyatake, Koji Isaka
  • Methacrylic resin composition and molded article
    Patent number: 11702492
    Abstract: The present invention provides a methacrylic resin composition comprising 100 parts by mass of a methacrylic resin comprising 50 to 97% by mass of a methacrylic acid ester monomer unit (A), 3 to 30% by mass of a structural unit (B) having a ring structure in the backbone, and 0 to 20% by mass of an additional vinyl monomer unit (C) copolymerizable with a methacrylic acid ester monomer, and 0.001 to 0.2 parts by mass of a compound (D) having a predetermined structure, the methacrylic resin composition satisfying the following conditions (I) and (II): (I): a weight-average molecular weight of the methacrylic resin composition as measured by gel permeation chromatography (GPC) is 65,000 to 300,000, and (II): a mass ratio between the component (D) and the structural unit (B) having a ring structure in the backbone is 25?(B)/(D)?1000.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: July 18, 2023
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Nobuhiro Kobayashi, Fumiki Murakami
  • Polyimide varnish and method for producing same
    Patent number: 11702565
    Abstract: The purpose of the present invention is to provide a, polyimide film having high transparency and improved bending resistance against multiple times of bending, and a varnish capable of providing such a polyimide film. The varnish according to the present invention contains a polymer (?) and a solvent (?). The polymer (?) is polyimide or a polyimide precursor. The varnish further contains a typical metal element having an atomic weight of 26-201 except alkali metals and alkaline earth metals, or at least one metal element among transition metal elements having an atomic weight of 26-201 or less. At least one of the metal elements contained in the varnish is present in an amount of 0.05-500 ppm relative to the polymer (?).
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: July 18, 2023
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Satoshi Kato, Toshiaki Nagasawa
  • Method for producing catalyst for ammoxidation, and method for producing acrylonitrile
    Patent number: 11701648
    Abstract: The present invention provides a method for producing a catalyst for ammoxidation, comprising steps of: preparing a catalyst precursor slurry comprising a liquid phase and a solid phase; drying the catalyst precursor slurry to obtain dry a particle; and calcining the dry particle to obtain a catalyst for ammoxidation, wherein the solid phase of the catalyst precursor slurry comprises an aggregate containing a metal and a carrier, metal primary particles constituting the aggregate have a particle size of 1 ?m or smaller, and an average particle size of the metal primary particles is 40 nm or larger and 200 nm or smaller.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: July 18, 2023
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Kohei Moriya, Akiyoshi Fukuzawa
  • Respiratory state estimating device, portable device, wearable device, medium, respiratory state estimating method and respiratory state estimator
    Patent number: 11701026
    Abstract: Provided is a respiratory state estimating device including a pulse wave signal acquiring unit that acquires a pulse wave signal from a portion of a living subject, a pulse rate calculating unit that calculates a pulse rate of the living subject based on the pulse wave signal, and a respiratory state estimating unit that estimates a respiratory state of the living subject based on the pulse rate. Also, provided is a respiratory state estimating method including optically acquiring a pulse wave signal from a portion of a living subject, calculating a pulse rate of the living subject based on the pulse wave signal, estimating a respiratory state of the living subject from the pulse rate.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: July 18, 2023
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Yoshihiro Noguchi, Kiyoshi Yamamoto, Masaya Yamashita
  • Composite polymer electrolyte membrane
    Patent number: 11705569
    Abstract: A composite polymer electrolyte membrane comprising a nanofiber sheet having a basis weight of 1.5 g/m2 or more and 4.0 g/m2 or less, and a proton-conducting polymer, the electrolyte membrane having a sheet shape in which the proton-conducting polymer and the nanofiber sheet are combined, and having an average coefficient of linear expansion of 300 ppm/K or less from 20° C. to 120° C. in an in-plane direction of the sheet shape.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: July 18, 2023
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Kazuki Kato, Junji Sakuda