Patents Assigned to DENKA COMPANY LIMITED
  • METHOD FOR CULTIVATING CITRUS PLANT
    Publication number: 20230284625
    Abstract: Disclosed is a method for cultivating a citrus plant, comprising: applying to the citrus plant a liquid composition comprising Fe ions, wherein at least a portion of the Fe ions are Fe2+ ions, wherein the citrus plant is cultivated in sandy soil.
    Type: Application
    Filed: March 14, 2022
    Publication date: September 14, 2023
    Applicant: Denka Company Limited
    Inventors: Kazuma HONDA, Minoru MORIOKA, Gavin DIAZ
  • A SIMPLE METHOD FOR COLLECTING A SAMPLE OF A MUCOSAL FLUID ADHERED TO THE MUCOSAL SURFACE OF THE NASAL CAVITY AND A TEST KIT FOR DETECTING AN ANALYTE IN THE SAMPLE
    Publication number: 20230288419
    Abstract: This invention provides a method for analyzing an analyte in a sample in a rapid and simple manner with high accuracy with the use of a sample of a mucosal fluid adhered to the mucosal surface of the nasal cavity collected using a nasal spray device in a less invasive and simple manner. The method comprises detecting an infectious disease by applying a washing liquid to the nasal cavity of a subject suspected of an infectious disease to wash the mucosal surface of the nasal cavity and using, as a sample, the collected wash liquid containing the mucosal fluid adhered to the mucosal surface of the nasal cavity.
    Type: Application
    Filed: July 13, 2021
    Publication date: September 14, 2023
    Applicant: Denka Company Limited
    Inventors: Takashi MIYAZAWA, Chihfang TIEN
  • FIBERS FOR ARTIFICIAL HAIR AND HAIR ACCESSORY
    Publication number: 20230284723
    Abstract: A fiber for artificial hair, having a base fiber and a metal salt of a polymer compound that is present in at least a part of a surface of the base fiber, in which the metal salt contains at least one metal selected from the group consisting of silver, zinc, and copper. A headdress article having the fiber for artificial hair.
    Type: Application
    Filed: July 7, 2021
    Publication date: September 14, 2023
    Applicant: Denka Company Limited
    Inventors: Koji ASANUMA, Takashi MURAOKA, Yuki SAGARA
  • PHOSPHOR PARTICLES, COMPOSITE, WAVELENGTH CONVERSION MEMBER, AND PROJECTOR
    Publication number: 20230279289
    Abstract: Phosphor particles for producing a wavelength conversion member of a projector, including ?-type sialon. A cured sheet having a film thickness of 50±5 ?m produced by using the particle satisfies the following optical characteristics: when an intensity at a peak wavelength of blue light emitted from a blue LED having a peak wavelength between 450 to 460 nm is defined as Ii [W/nm], and in a case where the blue light is emitted to one surface side of the cured sheet, when an intensity of light emitted from the other surface side of the cured sheet at a peak wavelength between 450 to 460 nm is defined as It [W/nm] and an intensity thereof at a peak wavelength between 500 to 560 nm is defined as Ip [W/nm], It/Ii is equal to or less than 0.50 and Ip/Ii is equal to or more than 0.03.
    Type: Application
    Filed: July 9, 2021
    Publication date: September 7, 2023
    Applicant: DENKA COMPANY LIMITED
    Inventors: Shunsuke MITANI, Keita KOBAYASHI
  • RESIN SHEET, CONTAINER, CARRIER TAPE, AND ELECTRONIC COMPONENT PACKAGING BODY
    Publication number: 20230279190
    Abstract: A resin sheet is for molding, has an impact strength of 1.0 J or greater in a DuPont impact test, and has a value of 80 N/m2 or smaller obtained through integration from an origin point to a strain when fracture has occurred in a stress strain curve obtained in a tensile test. A carrier tape 100 is a molded body 16 of the resin sheet, wherein an accommodation portions 20 capable of accommodating an article is provided.
    Type: Application
    Filed: June 7, 2021
    Publication date: September 7, 2023
    Applicant: Denka Company Limited
    Inventors: Ryosuke YANAKA, Takeshi SAITO, Kota SAWAGUCHI
  • Membrane carrier for liquid sample test kit, liquid sample test kit, method of manufacturing liquid sample test kit, test method of liquid sample, and membrane carrier
    Patent number: 11747331
    Abstract: Provided is a membrane carrier for a liquid sample test kit (3) that detects a substance to be detected in a liquid sample, the liquid sample test kit including at least one flow path (2) capable of transporting the liquid sample, in which a microstructure that causes a capillary action for transporting the liquid sample is provided on a bottom surface of the flow path (2), and a level difference at which a height level of the bottom surface changes, is provided in the flow path (2). The membrane carrier preferably has a detection zone for detecting a substance to be detected in the liquid sample.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: September 5, 2023
    Assignee: DENKA COMPANY LIMITED
    Inventors: Yuto Akiyama, Kenji Monden
  • FIBERS FOR ARTIFICIAL HAIR, METHOD FOR PRODUCING SAME, AND HEADDRESS ARTICLE
    Publication number: 20230270196
    Abstract: Disclosed is a fiber for artificial hair, containing a polyamide-based resin and a maleic acid-based polymer having at least one maleic acid compound selected from the group consisting of maleic acid and a maleic acid derivative as a monomer unit. Also disclosed is a headdress article including the fiber for artificial hair. Also disclosed is a method for producing a fiber for artificial hair, the method including a step of spinning a composition containing a polyamide-based resin and a maleic acid-based polymer having at least one maleic acid compound selected from the group consisting of maleic acid and a maleic acid derivative as a monomer unit.
    Type: Application
    Filed: October 27, 2020
    Publication date: August 31, 2023
    Applicant: Denka Company Limited
    Inventors: Takashi MURAOKA, Sho HAKAMADA, Atsushi TAKEI
  • TEST REAGENT WITH AMELIORATED SIGNAL REDUCTION
    Publication number: 20230273190
    Abstract: An object is to strongly suppress a false negative reaction and a false positive reaction, which cannot be sufficiently suppressed by a conventional method, in detection of an antigen such as a virus, a bacterium, or a protein to be detected in a specimen originated from a body fluid such as a nasal swab specimen, a nasal aspirate specimen, a nasal wash specimen, a blown snot specimen, a pharyngeal swab specimen, or a saliva specimen with a detection reagent utilizing an antigen-antibody reaction or a reaction between substances interacting with each other. The present invention provides a test reagent for detecting a target substance in a specimen by utilizing an antigen-antibody reaction or a binding reaction between substances interacting with each other, comprising a specimen extracting solution containing a chelating agent.
    Type: Application
    Filed: July 21, 2021
    Publication date: August 31, 2023
    Applicant: Denka Company Limited
    Inventors: Eriko YOSHIZAWA, Yuki SHINOHARA, Shino MURAMATSU, Miwa KUWAHARA
  • COMPOSITE AND PRODUCTION METHOD FOR COMPOSITE
    Publication number: 20230271888
    Abstract: One aspect of the present disclosure provides a production method for a composite, the method including: a cooling step of performing cooling under a pressurized condition in a state where a heated molten material of a thermosetting composition is brought into contact with a resin-impregnated body, in which the above-described resin-impregnated body includes a nitride sintered body having a porous structure and a semi-cured product of the thermosetting composition impregnated into the above-described nitride sintered body.
    Type: Application
    Filed: May 13, 2021
    Publication date: August 31, 2023
    Applicant: Denka Company Limited
    Inventors: Nobuya SUZUKI, Saori INOUE, Yasuhisa UESHIMA, Ryo YOSHIMATSU, Ryuji KOGA
  • COMPOSITION, POSITIVE ELECTRODE COMPOSITION, POSITIVE ELECTRODE SLURRY, POSITIVE ELECTRODE, AND SECONDARY BATTERY
    Publication number: 20230275233
    Abstract: A composition including a graft copolymer, wherein the graft copolymer has a stem polymer and a branch polymer; the stem polymer contains a polyvinyl alcohol structure, the branch polymer contains a first monomer unit containing a (meth)acrylonitrile monomer unit and/or a (meth)acrylic acid monomer; the composition has a gel fraction of 30% or more; the gel fraction is represented by following formula: the gel fraction %=A×100/1; A g is an insoluble content left on a filter pater when 1 g of the composition is added to 300 ml of dimethyl sulfoxide to obtain a mixture and the mixture is stirred at 60° C. for 15 hours and then filtered through the filter paper, which is a No. 5C filter paper as specified in JIS P 380.
    Type: Application
    Filed: August 11, 2021
    Publication date: August 31, 2023
    Applicant: DENKA COMPANY LIMITED
    Inventors: Ryosuke KANTO, Yuhei ISHIGAKI, Jun WATANABE
  • COVER TAPE AND ELECTRONIC COMPONENT PACKAGE
    Publication number: 20230272192
    Abstract: This cover tape has at least a base layer and a heat seal layer, wherein the heat seal layer has a loss tangent tan ? of less than 1 in a temperature range of 150° C. or less in a dynamic viscoelastic measurement at a measurement frequency of 1 Hz.
    Type: Application
    Filed: August 18, 2021
    Publication date: August 31, 2023
    Applicant: Denka Company Limited
    Inventors: Kota SAWAGUCHI, Keisuke NABA, Gosuke NAKAJIMA
  • TWO-AGENT CURABLE HEAT CONDUCTIVE GREASE COMPOSITION, HEAT CONDUCTIVE GREASE, AND ELECTRONIC DEVICE
    Publication number: 20230272218
    Abstract: A two-agent curable heat conductive grease composition including a first agent and a second agent, wherein the first agent contains 100 parts by weight of a liquid resin (A-1), 140 parts by weight to 560 parts by weight of metal aluminum (B-1) having an average particle size of 15 to 100 ?m, one or more heat conductive fillers (C-1) selected from the group consisting of aluminum oxide, aluminum nitride, and boron nitride and having an average particle size within a range of 0.3 to 10 ?m, and a hydrosilylation reaction catalyst (D-1); the second agent contains 100 parts by weight of a liquid resin (A-2), 140 parts by weight to 560 parts by weight of metal aluminum (B-2) having an average particle size of 15 to 100 ?m, and one or more heat conductive fillers (C-2) selected from the group consisting of aluminum oxide, aluminum nitride, and boron nitride and having an average particle size within a range of 0.
    Type: Application
    Filed: June 1, 2021
    Publication date: August 31, 2023
    Applicant: Denka Company Limited
    Inventor: Masahiro KATO
  • COVER TAPE AND ELECTRONIC-COMPONENT PACKAGE
    Publication number: 20230271761
    Abstract: This cover tape has at least a base layer and a heat seal layer, wherein the heat seal layer contains a copolymer (A) of a styrene-based hydrocarbon and a conjugated diene-based hydrocarbon, the component (A) contains a block copolymer (A-1) of 10% by mass or more and less than 50% by mass of a styrene-based hydrocarbon and more than 50% by mass and 90% by mass or less of a conjugated diene-based hydrocarbon, and a block copolymer (A-2) of 50% by mass or more and 95% by mass or less of a styrene-based hydrocarbon and 5% by mass or more and 50% by mass or less of a conjugated diene-based hydrocarbon, a content of the component (A-1) is 35 to 60% by mass based on a total amount of the heat seal layer, and a mass ratio of the component (A-2) to the component (A-1) is 0.30 to 1.0.
    Type: Application
    Filed: August 18, 2021
    Publication date: August 31, 2023
    Applicant: Denka Company Limited
    Inventors: Keisuke NABA, Gosuke NAKAJIMA, Takanori ATSUSAKA, Hisatsugu TOKUNAGA
  • HEAT RESISTANCE RESIN COMPOSITION AND INJECTION MOLDED BODY THEREOF
    Publication number: 20230265288
    Abstract: A heat resistant resin composition which does not cause stringing when performing fusion-bonding using heated plates. A heat resistant resin composition, including: a maleimide-based copolymer; and at least one resin selected from the group including: ABS resin, ASA resin, AES resin, and SAN resin; wherein: the heat resistant resin composition has a ratio G?/G? of storage modulus (G?) to loss modulus (G?) measured in accordance with JIS K 7244-10 under conditions of 240° C. at an angular velocity of 0.63 rad/s is 0.30 or more and 1.00 or less.
    Type: Application
    Filed: September 2, 2021
    Publication date: August 24, 2023
    Applicant: DENKA COMPANY LIMITED
    Inventor: Soichiro NAKANISHI
  • PHOSPHOR COATING MATERIAL, COATING FILM, PHOSPHOR BOARD, AND ILLUMINATION DEVICE
    Publication number: 20230265339
    Abstract: A phosphor coating material containing phosphor particles and a curable resin component. In the phosphor coating material, a content of the phosphor particles in all non-volatile components is equal to or more than 25 vol % and equal to or less than 60 vol %. Using the phosphor coating material, it is possible to produce a coating film (phosphor layer), a phosphor board, and an illumination device.
    Type: Application
    Filed: July 30, 2021
    Publication date: August 24, 2023
    Applicant: DENKA COMPANY LIMITED
    Inventor: Masahiro KONISHI
  • METHODS FOR RECOVERING AND PRODUCING TARGET PROTEIN
    Publication number: 20230265403
    Abstract: The present invention discloses a method for recovering a target protein expressed in an apoplast, comprising a step of injecting a buffer into a plant body that expresses the target protein in an apoplast through a stoma, a water pore, or a cross-section of the plant body; and a step of extracting a buffer present inside the plant body through a stoma, a water pore, or a cross-section.
    Type: Application
    Filed: August 5, 2021
    Publication date: August 24, 2023
    Applicant: Denka Company Limited
    Inventor: Kenichi NISHIDA
  • COVER TAPE AND ELECTRONIC COMPONENT PACKAGE
    Publication number: 20230265317
    Abstract: This cover tape has at least a base layer and a heat seal layer, wherein the heat seal layer contains a polystyrene-based resin (A) and an ethylene-(meth)acrylic acid-based copolymer (B), and contents of the component (A) and the component (B) are more than 80 parts by mass and 95 parts by mass or less and 5 parts by mass or more and less than 20 parts by mass with respect to a total of 100 parts by mass of the component (A) and the component (B).
    Type: Application
    Filed: August 18, 2021
    Publication date: August 24, 2023
    Applicant: Denka Company Limited
    Inventors: Gosuke NAKAJIMA, Keisuke NABA, Takanori ATSUSAKA, Hisatsugu TOKUNAGA
  • FIBERS FOR ARTIFICIAL HAIR AND HEADDRESS PRODUCT
    Publication number: 20230263253
    Abstract: Disclosed is a fiber for artificial hair containing a polycondensation-based polymer and a crosslinking agent. Also disclosed is a headdress article including the fiber for artificial hair.
    Type: Application
    Filed: October 27, 2020
    Publication date: August 24, 2023
    Applicant: Denka Company Limited
    Inventors: Sho HAKAMADA, Atsushi TAKEI, Takashi MURAOKA
  • ACRYLIC RUBBER, RUBBER COMPOSITION AND CROSSLINKED PRODUCT THEREOF, RUBBER HOSE, AND SEAL PART
    Publication number: 20230265228
    Abstract: An aspect of the present invention is an acrylic rubber containing only an alkyl acrylate, ethylene and a crosslinking monomer as monomer units, wherein a content of a polyvinyl alcohol in the acrylic rubber is 0.5 to 2% by mass.
    Type: Application
    Filed: July 6, 2020
    Publication date: August 24, 2023
    Applicant: Denka Company Limited
    Inventors: Tatsuya NAKANO, Toshiaki MIYAUCHI
  • Surface-treated aggregated boron nitride powder, aggregated boron nitride powder, and thermally conductive resin composition
    Patent number: 11732173
    Abstract: A surface-treated aggregated boron nitride powder is prepared by using the boron nitride powder as the raw material, adding an oxidizer to the boron nitride aggregated grains, wet-pulverizing or wet-crushing the grains for surface modification treatment of the particles and allowing reaction of the particles with a metal coupling agent. The surface-treated boron nitride aggregated grains are formed by aggregation of hexagonal h-BN primary particles; (B) have any one or more of Si, Ti, Zr, Ce, Al, Mg, Ge, Ga, and V in an amount of 0.1 atm % or more and 3.0 atm % or less in its composition on the surface of 10 nm; (C) have a crushing strength of 5 MPa or more; and (D) have an average particle diameter of 20 ?m or more and 100 ?m or less.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: August 22, 2023
    Assignee: DENKA COMPANY LIMITED
    Inventors: Go Takeda, Yoshitaka Taniguchi