Patents Assigned to Asahi Kasei Kabushiki Kaisha
  • Patent number: 10847679
    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: November 24, 2020
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventor: Kosuke Sato
  • Patent number: 10844157
    Abstract: The polyisocyanate cured product according to the present invention has an isocyanurate structure, which comprises at least one diisocyanate selected from the group consisting of an aliphatic diisocyanate and an alicyclic diisocyanate, as a unit structure, the polyisocyanate cured product having an allophanate group, and the molar ratio of the isocyanurate group to the allophanate group (isocyanurate group/allophanate group) is 99/1 to 20/80.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: November 24, 2020
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Yoshijiro Harada
  • Publication number: 20200360915
    Abstract: Provided is a porous molding which is capable of removing ions in water to be treated, in particular, phosphorus ions at a very high liquid-permeation rate of at least SV 120 hr?1, and which has a large adsorption capacity. The porous molding according to the present invention comprises an organic polymer resin and an inorganic ion adsorbent, and is characterized in that a total volume of pores having a pore diameter of 1-80 nm as measured by a nitrogen adsorption method is 0.05-0.7 cm3/g per unit mass of the inorganic ion adsorbent.
    Type: Application
    Filed: December 21, 2018
    Publication date: November 19, 2020
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Masashi Kogawa, Keitaro Suzumura, Yutaka Koyama
  • Patent number: 10841690
    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: Grant
    Filed: March 29, 2019
    Date of Patent: November 17, 2020
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Shiro Kobayashi, Masaya Yamashita, Takeshi Ishii, Soichi Mejima
  • Publication number: 20200358119
    Abstract: A polymer electrolyte membrane of the present disclosure comprises a perfluorosulfonic acid resin (A), wherein the polymer electrolyte membrane has a phase-separation structure having a phase where fluorine atoms are detected in majority and a phase where carbon atoms are detected in majority, in an image of a membrane surface observed under an SEM-EDX, and the polymer electrolyte membrane has a phase having an average aspect ratio of 1.5 or more and 10 or less in an image of a membrane cross-section observed under an SEM.
    Type: Application
    Filed: May 11, 2017
    Publication date: November 12, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Takahiro TAGO, Kuon MIYAZAKI
  • Publication number: 20200353420
    Abstract: A filtration method that includes a cleaning step using a chemical agent, wherein provided is the filtration method with excellent chemical resistance performance. The filtration method pertaining to the present invention comprises a filtration step in which a liquid to be filtered is filtered by being passed through a porous membrane formed of a resin, and a cleaning step in which the membrane interior of the porous membrane is cleaned after the filtration step, wherein a porous membrane for which the area ratio of a resin part having an area of 1 ?m2 or less included in a cross section of the membrane interior is at least 70% of the total area of the entire resin part included in the cross section, and said cleaning step includes a step in which an aqueous solution of at least 1% sodium hydroxide is passed through the porous membrane.
    Type: Application
    Filed: September 4, 2018
    Publication date: November 12, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Daisuke OKAMURA
  • Publication number: 20200354508
    Abstract: The present invention provides a blocked polyisocyanate composition comprising a blocked polyisocyanate formed through blocking at least a part of isocyanate groups possessed by a polyisocyanate derived from one or two or more diisocyanates selected from the group consisting of an aliphatic diisocyanate and an alicyclic diisocyanate with an active methylene-based compound comprising a malonic acid diester, wherein a specific molar ratio calculated from contents (mol %) of isocyanurate groups, iminooxadiazinedione groups, uretdione groups, and allophanate groups is 0.05 or more and 0.60 or less.
    Type: Application
    Filed: July 24, 2020
    Publication date: November 12, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Masakazu YAMAUCHI, Satoshi TAKENO
  • Publication number: 20200353415
    Abstract: This system for concentrating solvent-containing articles involves a first step in which: a supply flow (a) comprising solvent-containing articles containing a solute and a solvent (b) is caused to flow counter to or parallel with a permeant flow (d) through a forward osmosis membrane (o); the solvent (b) contained in the supply flow (a) is made to pass through the forward osmosis membrane (o) and to move into the permeant flow (d); and a concentrate flow (c) formed from the concentrated solvent-containing articles and a flow (e) formed from the diluted permeant flow (d) are obtained, wherein the permeant flow (d) is an inorganic salt solution containing multivalent cations, and the temperature of the permeant flow (d) in the aforementioned first step is 5-60° C.
    Type: Application
    Filed: November 20, 2018
    Publication date: November 12, 2020
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Mitsuru Fujita, Akira Kiguchi, Masato Mikawa, Takashi Suzuki
  • Patent number: 10831101
    Abstract: A photosensitive resin composition containing a resin and a compound each having a structure specified by the present specification provides a cured film having excellent adhesiveness to copper wiring.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: November 10, 2020
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Tomohiro Yorisue, Taihei Inoue, Yoshito Ido, Mitsutaka Nakamura, Tomoshige Yunokuchi, Daisuke Sasano, Takahiro Sasaki
  • Patent number: 10829604
    Abstract: A glass cloth comprising a glass yarn woven together, the glass yarn comprising multiple glass filaments, wherein an amount of B2O3 in a composition of the glass filaments is 15% by mass to 30% by mass, an amount of SiO2 in the composition thereof is 45% by mass to 60% by mass, and an amount of P2O5 in the composition thereof is 2% by mass to 8% by mass, and loss on ignition (LOI) of the glass cloth is 0.90% by mass to 2.0% by mass.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: November 10, 2020
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Hirotaka Kakizaki, Masaharu Sugimura, Shinichiro Tachibana
  • Patent number: 10829632
    Abstract: The hydrogenated block copolymer according to the present invention is a hydrogenated block copolymer containing, in the molecule, a polymer block (C) having a conjugated diene compound as a main component, a polymer block (B) having a conjugated diene compound as a main component, and a polymer block (S) having a vinyl aromatic compound as a main component.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: November 10, 2020
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Hiroyuki Ichino, Yasuhiro Kusanose, Masashi Yamamoto, Masahiro Fujiwara
  • Patent number: 10829383
    Abstract: A GIS-type zeolite, having a diffraction peak of (1 0 1) at a diffraction angle 2?=12.55 to 12.90° in a spectrum obtained by X-ray diffraction.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: November 10, 2020
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Takayuki Akaogi
  • Publication number: 20200346173
    Abstract: The porous hollow fiber membrane of the present invention contains a thermoplastic resin, and includes a surface having a surface porosity of 32 to 60% and a fine pore diameter of 300 nm or less, and has a compressive strength of 0.7 MPa or more. The porous hollow fiber membrane of the present invention may include at least two layers, and in this case, the surface of one layer has a thickness of backbone of 0.3 to 20 ?m and a fine pore diameter of 0.3 to 10 ?m, and the surface of the other layer has a surface porosity of 32 to 60% and a fine pore diameter of 0.05 to 0.3 ?m.
    Type: Application
    Filed: July 20, 2020
    Publication date: November 5, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Daisuke OKAMURA, Yuki MIKI, Masatoshi HASHINO
  • Patent number: 10825616
    Abstract: Method of preparing a nonaqueous lithium power storage element, by providing a nonaqueous lithium power storage element comprising a positive electrode precursor containing a lithium compound other than an active material, a negative electrode, a separator, a nonaqueous electrolytic solution containing lithium ions, and a casing; and applying a voltage of 4.2V or more to the nonaqueous lithium power storage element to decompose the lithium compound in the positive electrode precursor and pre-dope the negative electrode with the lithium ions, while releasing a gas generated from decomposition of the lithium compound either out of an opening of the casing or through a degassing valve or gas permeable film.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: November 3, 2020
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Kazuteru Umetsu, Nobuhiro Okada, Takeshi Kamijo
  • Publication number: 20200338503
    Abstract: This method, for regenerating a member used in a device that treats seawater, involves a cleaning step for removing deposits from the member. In the cleaning step, a first chemical solution containing an acid other than hydroxydicarboxylic acid and a second chemical solution containing hydrogen peroxide, a heavy metal compound and hydroxydicarboxylic acid are used.
    Type: Application
    Filed: January 22, 2019
    Publication date: October 29, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Yutaka GOJO, Takahide YOSHIDA
  • Publication number: 20200339833
    Abstract: A coating method in which a first coating composition is applied to the surface of an object to be coated to obtain a first uncured coating film, a second coating composition is applied to the first uncured coating film to obtain a second uncured coating film, and the first uncured coating film and the second uncured coating film are then cured simultaneously by heating, wherein the first coating composition contains a hydroxyl group-containing resin component and the second coating composition contains an isocyanate component containing a triisocyanate represented by general formula (I) (in the formula, the multiple Y1 each independently are a single bond or a C1-20 divalent hydrocarbon group which optionally contains one or more selected from the group consisting of an ester group and an ether group, and R1 is a hydrogen atom or a C1-12 monovalent hydrocarbon group) and the above-mentioned hydroxyl group-containing resin component, is provided.
    Type: Application
    Filed: December 26, 2018
    Publication date: October 29, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Yuichi MIWA, Masakazu YAMAUCHI
  • Patent number: 10815190
    Abstract: A quaternary ammonium compound represented by the following formula (1): [(R1)m(R2)4-mN+]nXn???(1) wherein each R1 independently represents an unsubstituted alkyl group or substituted alkyl group having 1 to 30 carbon atoms; an aryl group having 6 to 20 carbon atoms; an aralkyl group where an unsubstituted alkyl group or substituted alkyl group having 1 to 30 carbon atoms is substituted with at least one aryl group having 6 to 20 carbon atoms; or an alkylaryl group where an aryl group having 6 to 20 carbon atoms is substituted with at least one unsubstituted alkyl group or substituted alkyl group having 1 to 30 carbon atoms; each R2 independently represents a group having 2 to 60 carbon atoms and 2 to 30 oxygen atoms, the group represented by the following formula: —(RO)k-H, wherein R represents a substituted or unsubstituted alkyl group and k represents a natural number of 2 or more.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: October 27, 2020
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Tomohiro Kondo
  • Publication number: 20200332108
    Abstract: Provided is a method for manufacturing a methacrylic resin composition having excellent surface processability and displaying excellent preservability of formed surface processing. A method for manufacturing a methacrylic resin composition, wherein the methacrylic resion composition comprises two or more types of methacrylic resins that each have a structural unit (X) having the same type of cyclic structure-containing main chain, the methacrylic resin composition has a Vicat softening temperature of 120° C. to 160° C., methanol-soluble content is contained in an amount of 5 mass % or less relative to 100 mass %, in total, of the methanol-soluble content and methanol-insoluble content, comprising mixing a low molecular weight component and a high molecular weight component.
    Type: Application
    Filed: July 6, 2020
    Publication date: October 22, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Katsuhiro IWASE, Harumi WATANABE, Keigo SASAKI
  • 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: 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