Patents Assigned to Asahi Kasei Kabushiki Kaisha
  • Publication number: 20200335755
    Abstract: A separator for an electricity storage device comprising a silane-modified polyolefin, wherein silane crosslinking reaction of the silane-modified polyolefin is initiated when it contacts with the electrolyte solution, as well as a method for producing the separator.
    Type: Application
    Filed: October 11, 2019
    Publication date: October 22, 2020
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Xun Zhang, Ryo Kuroki, Yuki Fukunaga, Hiromi Kobayashi, Mitsuko Saito
  • Patent number: 10808066
    Abstract: A hydrogenated copolymer comprising a copolymer block A comprising a vinyl aromatic compound monomer unit and a conjugated diene monomer unit, wherein a tan ? peak obtained by dynamic viscoelasticity measurement (1 Hz) is in the range of ?40° C. to 20° C., a value of the tan ? peak is 0.8 or more, and a half value width of the tan ? peak is 22° C. or less.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: October 20, 2020
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Yuta Kamei, Toshikazu Hoshina, Yasuhiro Kusanose, Masahiro Fujiwara
  • Patent number: 10808108
    Abstract: The present invention provides an ultra-high molecular weight polyethylene powder having a viscosity-average molecular weight of 10×104 or higher and 1000×104 or lower, wherein a temperature range in which a torque value reaches ½ of the maximum torque value is 150° C. or higher and 170° C. or lower in torque value measurement.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: October 20, 2020
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventor: Koichi Tsujimoto
  • Patent number: 10811565
    Abstract: This invention provides a nitride semiconductor light emitting device in which current concentration is suppressed without excessively increasing resistance at a low cost without increasing a manufacturing process. The planar shape of a mesa portion configuring a nitride semiconductor light emitting device is a shape containing a convex-shaped tip portion 352b formed by a curved line or a plurality of straight lines and a base portion 352a continuous to the convex-shaped tip portion 352b, in which an obtuse angle is formed by adjacent two straight lines in the convex-shaped tip portion formed by the plurality of straight lines. The first electrode layer 4 has visible outlines 411 and 412 along a visible outline 302 of the mesa portion through a gap 9 in planar view. The relationship between a gap W1 in the convex-shaped tip portion 352b and a gap W2 in the base portion 352a is W1> W2.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: October 20, 2020
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventor: Kosuke Sato
  • Patent number: 10806562
    Abstract: A low-profile stent graft has a Type-III endoleak suppression effect, avoiding the problem with a stent graft which uses an extra-thin graft incurring enlarged needle holes or needle hole parts in a suture part. The stent graft has a proximate end, a distal end, and a lumen which is positioned between the proximate end and the distal end. The stent graft is formed by coupling a cylindrical graft to a stent with a suture. The cylindrical graft is formed from a fabric having a thickness of 10-90 ?m. The elastic modulus of the suture is 40 cN/dtex or less.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: October 20, 2020
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Tetsuko Takahashi, Junichi Kojima
  • Patent number: 10807073
    Abstract: The present invention provides a method for producing a catalyst to be used for a gas-phase catalytic ammoxidation reaction of propane, the method comprising a preparation step of dissolving or dispersing a raw material to thereby obtain a prepared raw material liquid, a first drying step of drying the prepared raw material liquid to thereby obtain a dried material, a calcination step of calcining the dried material to thereby obtain a composite oxide having a predetermined composition, an impregnation step of impregnating the composite oxide with a solution containing at least one specific element selected from the group consisting of tungsten, molybdenum, tellurium, niobium, vanadium, boron, bismuth, manganese, iron, antimony, phosphorus and rare earth elements to thereby obtain an impregnated composite oxide, and a second drying step of drying the impregnated composite oxide, wherein at least one of the impregnation step o and the second drying step is a step of impregnating the composite oxide or drying t
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: October 20, 2020
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Sho Tamura, Dai Nagata
  • Patent number: 10806564
    Abstract: The present invention relates to catheter systems and methods of treating a vascular disease using the same.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: October 20, 2020
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Tetsuko Takahashi, Akihito Nakazawa, Keiichi Toyoda
  • Patent number: 10811658
    Abstract: An object of the present invention is to provide a separator maintaining high rate characteristics and enabling suppression of short circuit. The object is achieved by a separator comprising a substrate having an inner surface and an outer surface, and inorganic particles presented on the outer surface and the inner surface of the substrate, wherein the substrate has a porosity of 55% or more and a mean flow pore size of 30 ?m or less, the inorganic particles have an average particle size of 1.0 to 4.0 ?m, and the inorganic particles comprises 40% by volume or less of particles having a particle size of 1.0 ?m or less and 30 to 75% by volume of particles having a particle size of 2.0 ?m or more.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: October 20, 2020
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Yusuke Yamada, Makoto Uozumi, Takashi Misao, Mitsutaka Nakamura, Masaaki Sasayama, Kazufumi Kato
  • Patent number: 10808056
    Abstract: A polyethylene fiber wherein when a free induction decay (M(t)) of the polyethylene fiber at 90° C. measured by a pulsed nuclear magnetic resonance (NMR) solid echo method is approximated to three components of a component (?) having a lowest mobility, a component (?) having an intermediate mobility, and a component (?) having a highest mobility, by fitting using formula 1 (M(t)=? exp(?(½)(t/T?)2)sin bt/bt+? exp(?(1/Wa)(t/T?)Wa)+? exp(?t/T?)), a composition fraction of the component (?) having the highest mobility is 1% or more and 10% or less, and a relaxation time of the component (?) having the highest mobility is 100 ?s or more and 1000 ?s or less.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: October 20, 2020
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventor: Shinsuke Mochizuki
  • Patent number: 10808117
    Abstract: An object of the invention is to provide a resin composition, from which a molded article having high durability, sliding property and wear resistance can be produced with a high productivity. The present invention provides a polyacetal resin composition containing 100 parts by mass of a polyacetal resin (A) and 10 parts by mass or more and 100 parts by mass or less of a glass filler (B), in which when a molded article formed of the polyacetal resin composition by molding is fractured by application of tensile force, the surface of the glass filler (B) protruding from a fractured surface of a fractured molded article is covered with a component containing the polyacetal resin (A) having an average thickness of 0.2 ?m or more and 3.0 ?m or less.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: October 20, 2020
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Yosuke Takahashi, Takaaki Miyoshi
  • Publication number: 20200324233
    Abstract: Provided is a porous membrane which has a high water permeability performance, a high blocking performance, and a durability performance against loads of long-term and high operation pressures, which are suitable for filtering applications. The porous membrane includes one surface to be on a side of a filtrate; and the other surface to be on a side of a liquid to be filtered, wherein a surface pore diameter index of the one surface is 2.5 or more, the surface pore diameter index being determined by dividing a pore diameter in a top surface by a pore diameter in a second top surface.
    Type: Application
    Filed: April 10, 2020
    Publication date: October 15, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Yuki MIKI, Hirokazu FUJIMURA
  • Publication number: 20200326337
    Abstract: Detection rapidly and with high detection intensity is accomplished while blackening is inhibited during silver enhancement to detect an analyte in a specimen.
    Type: Application
    Filed: August 30, 2019
    Publication date: October 15, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Kotaro ODA, Katsuyoshi TAKAHASHI, Mika SUGATA, I-Nung HUANG, Kazuhiko ARAKAWA, Yuichiro TAKAHASHI
  • Patent number: 10800875
    Abstract: Provided are a methacrylic resin having high heat resistance, highly controlled birefringence, and excellent color tone and transparency, and a production method, a molded article, and an optical or automotive component of the methacrylic resin. The methacrylic resin includes N-substituted maleimide monomer-derived structural units (B) in a main chain thereof in a proportion of 5 mass % to 40 mass %. The N-substituted maleimide monomer-derived structural units (B) include a structural unit represented by formula (1). The methacrylic resin has a glass transition temperature of higher than 120° C. and not higher than 160° C. The content of components that exhibit light absorption at a wavelength of 400 nm in methanol-soluble content of the methacrylic resin is more than 0 mass % and not more than 2 mass % as calculated in terms of N-phenylmaleimide.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: October 13, 2020
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Junichi Yoshida, Yutaka Tada
  • Publication number: 20200316906
    Abstract: Provided is a nonwoven fabric and a laminated nonwoven fabric suitable as the skin material of a composite sound-absorbing material. The nonwoven fabric and laminated nonwoven fabric are easily formable, thin, and lightweight and excel in form stability, and can nevertheless be controlled within a given range of aeration after being formed into shape. A nonwoven fabric having a laminate structure in which at least one ultra-fine fiber layer (M) having an average fiber diameter of 0.3 to 7 ?m (inclusive) and a basis weight of 1 g/m2 to 40 g/m2 (inclusive) and at least one continuous filament layer (S) having an average fiber diameter of 10 to 30 ?m (inclusive) are integrated together by partial thermocompression bonding.
    Type: Application
    Filed: December 13, 2018
    Publication date: October 8, 2020
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Shinya Yamamuro, Rumina Obi, Kazufumi Kato, Tomoya Tanaka, Chie Okamura, Yasushi Isono, Junki Saito
  • Patent number: 10792643
    Abstract: A method for producing an oxide catalyst containing Mo, V, Sb, and Nb, the method including: a raw material preparation step including sub-step (I) of preparing an aqueous mixed liquid (A) containing Mo, V, and Sb, sub-step (II) of adding hydrogen peroxide to the aqueous mixed liquid (A), thereby facilitating oxidation of the aqueous mixed liquid (A) and obtaining an aqueous mixed liquid (A?), and sub-step (III) of mixing the aqueous mixed liquid (A?) and a Nb raw material liquid (B), thereby obtaining an aqueous mixed liquid (C); a drying step of drying the aqueous mixed liquid (C), thereby obtaining a dried powder; and a calcination step of calcining the dried powder under an inert gas atmosphere, wherein a time elapsed from addition of the hydrogen peroxide to the aqueous mixed liquid (A) to mixing the Nb raw material liquid (B) therewith is less than 5 minutes and the aqueous mixed liquid (A?) before being subjected to the sub-step (III) has an oxidation-reduction potential of 150 to 350 mV.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: October 6, 2020
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Eri Tateno, Minoru Kadowaki
  • Publication number: 20200314536
    Abstract: An apparatus and a method for drawing attention to an object are provided. The apparatus includes an information acquisition unit configured to acquire personal information of a person, a processor that determines a target object based on the personal information and identifies positional information of the target object, and an emitter for emitting at least one of ultrasound waves and light to the target object based on the positional information. The method includes the steps of acquiring personal information of a person, determining the target object based on the personal information and identifying positional information of the target object, and emitting at least one of ultrasound waves and light from an emitter to the target object based on the positional information.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 1, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Shiro KOBAYASHI, Masaya YAMASHITA, Takeshi ISHII, Soichi MEJIMA
  • Publication number: 20200313131
    Abstract: An in-vehicle lithium ion battery member produced by molding a resin composition containing (a) a polyphenylene ether resin, the resin composition having a critical strain in a chemical resistance evaluation of 0.5% or more and a Charpy impact strength at 23° C. of 20 kJ/m2 or more.
    Type: Application
    Filed: December 4, 2018
    Publication date: October 1, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Hiroya YOKOYAMA, Nozomi INAGAKI, Mihoko YAMAMOTO
  • Publication number: 20200314530
    Abstract: The present invention provides an earphone that reduces a contact sound generated when, for example, one moves while wearing the earphone or generated upon contact of a wiring or a substrate (component) with clothing or the human body and a frictional sound when the clothing or the skin of the human body rubs against the wiring or the substrate (component), and suppresses an unpleasant sound that would otherwise be heard from these sounds through the wiring. The earphone is provided with a pair of left and right speakers and a circuit to drive the speakers, and further provided with at least one substrate having a circuit including a communication circuit and/or a cell and a wiring for connecting the left and right speakers together or a wiring for connecting the left and right speakers separately to the substrate, the wiring having elasticity.
    Type: Application
    Filed: June 12, 2017
    Publication date: October 1, 2020
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Weiming Chu, Shunji Tatsumi
  • Publication number: 20200308338
    Abstract: A blocked polyisocyanate composition containing a blocked polyisocyanate obtained from a polyisocyanate and at least one blocking agent, wherein the blocking agent contains a compound represented by general formula (I) shown below, and the amount of methane tetracarbonyl structures represented by general formula (II) shown below, relative to the total molar amount within the blocked polyisocyanate of bonded structures in which the compound represented by general formula (I) is bonded to the polyisocyanate, is at least 0.5 mol % but not more than 10 mol %.
    Type: Application
    Filed: September 27, 2018
    Publication date: October 1, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Eiko TANAKA, Yuichi MIWA, Masakazu YAMAUCHI, Kie SHINOMIYA
  • Publication number: 20200314534
    Abstract: A sound reproducing apparatus and a sound reproducing method are provided. The apparatus includes a noise assessment unit configured to assess an intensity of ambient sound, a processor that determines an omnidirectional audio output level based on the intensity of ambient sound, an omnidirectional speaker configured to reproduce a desired sound at the omnidirectional audio output level, and a directional speaker configured to reproduce the desired sound simultaneously with the omnidirectional speaker. The method includes the steps of assessing an intensity of ambient sound, determining an omnidirectional audio output level based on the intensity of ambient sound, and reproducing a desired sound simultaneously from an omnidirectional speaker and a directional speaker. The omnidirectional speaker is controlled to reproduce the desired sound at the omnidirectional audio output level.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 1, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Shiro KOBAYASHI, Masaya YAMASHITA, Takeshi ISHII, Soichi MEJIMA