Patents Assigned to DENKA COMPANY LIMITED
  • Patent number: 11869190
    Abstract: A method, a program, and a method determining hypermutated type cancer with higher accuracy than before is provided.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: January 9, 2024
    Assignees: Niigata University, Denka Company Limited
    Inventors: Toshifumi Wakai, Shujiro Okuda, Yoshifumi Shimada, Hiroshi Izutsu, Keisuke Kodama
  • Publication number: 20240006615
    Abstract: Carbon black having a specific surface area of 150 m2/g or more and 400 m2/g or less, and a ratio (S2/S1) of a peak area (S2) of a peak at m/z 128 to a peak area (S1) of a peak at m/z 57 detected through thermal desorption spectroscopy of less than 2.00.
    Type: Application
    Filed: December 2, 2021
    Publication date: January 4, 2024
    Applicant: Denka Company Limited
    Inventors: Yusaku HARADA, Yuji KOGA
  • Publication number: 20240002719
    Abstract: Phosphor particles are composed of one or two selected from a powdery phosphor formed of CASN and SCASN, wherein a particle size corresponding to a cumulative 50% is Dx50 and to a cumulative 90% is Dx90 in a volume-based integrated fraction of the phosphor particles, and where a particle size corresponding to a cumulative 50% is Dy50 and to a cumulative 90% is Dy90 after subjecting the particles to treatment, (a) Dx50 is between 0.5 ?m and 35 ?m, and (b) Dx90/Dy90 is between 0.7 and 15. The treatment; a dispersion liquid wherein 30 mg of the particles are uniformly dispersed in an aqueous solution of sodium hexametaphosphate having a concentration of 0.2% and put into a cylindrical container A vibrator part of an ultrasonic homogenizer is inserted and the liquid is irradiated with ultrasonic waves at a frequency of 19.5 kHz and an output of 150 W for 3 minutes.
    Type: Application
    Filed: November 4, 2021
    Publication date: January 4, 2024
    Applicant: DENKA COMPANY LIMITED
    Inventors: Shunsuke MITANI, Keita KOBAYASHI
  • Publication number: 20240002721
    Abstract: A phosphor powder including phosphor particles which are a phosphor represented by a general formula Mx(Si, Al)2(N, O)3±y (where M is Li and one or more alkaline earth metal elements and 0.52?x?0.9 and 0.06?y?0.36 are satisfied) and in which a part of M is substituted with a Ce element, wherein a Si/Al atomic ratio is equal to or more than 1.5 and equal to or less than 6, an O/N atomic ratio is equal to or more than 0 and equal to or less than 0.1, 5 to 50 mol % of M is Li, and 0.5 to 10 mol % of M is Ce, and a total content of a Cr element, a Fe element, and a Ni element in the phosphor powder is equal to or less than 20.0 ppm.
    Type: Application
    Filed: November 11, 2021
    Publication date: January 4, 2024
    Applicant: DENKA COMPANY LIMITED
    Inventor: Hideyuki EMOTO
  • Publication number: 20240002670
    Abstract: Carbon black having a specific surface area of 150 m2/g or more and 400 m2/g or less and a hydrochloric acid absorption amount of 30 mL/5 g or more, wherein, when a 3 mass % slurry is prepared using N-methyl-2-pyrrolidone as a dispersion medium, the slurry viscosity at 25° C. and a shear rate of 10 s?1 is 200 mPa·s or more and 1,200 mPa·s or less.
    Type: Application
    Filed: December 2, 2021
    Publication date: January 4, 2024
    Applicant: Denka Company Limited
    Inventors: Yusaku HARADA, Yuji KOGA
  • Publication number: 20230416578
    Abstract: A curable composition containing a polymerizable compound (A) and a polymerization initiator (B). A half width of a temperature-loss tangent (tan ?) graph is 90° C. or higher and 150° C. or lower, where the half width is obtained by measuring a dynamic viscoelasticity of a cured substance of this curable composition under measurement conditions of frequency: 1.0 Hz, mode: tensile mode, measurement temperature range: ?50° C. to 200° C., and temperature rising rate: 2° C./min.
    Type: Application
    Filed: October 27, 2021
    Publication date: December 28, 2023
    Applicant: DENKA COMPANY LIMITED
    Inventors: Yusuke TAKAHASHI, Chiaki TAKANO
  • Publication number: 20230416682
    Abstract: A coating agent for promoting osteoblast differentiation and/or adipocyte differentiation of mesenchymal stem cells, the coating agent comprising a polyrotaxane represented by Formula (1): wherein R1 is a hydrogen atom or a methyl group, m is 1 to 2000, and n is 10 to 500, is a cyclodextrin in which at least one hydroxyl group is modified with a group represented by —X—Y, X is a divalent organic group, and Y is a hydroxyl group or a sulfo group.
    Type: Application
    Filed: November 22, 2021
    Publication date: December 28, 2023
    Applicants: DENKA COMPANY LIMITED, NATIONAL UNIVERSITY CORPORATION TOKYO MEDICAL AND DENTAL UNIVERSITY
    Inventors: Ruriko AOYAMA SEKIYA, Yoshinori ARISAKA, Nobuhiko YUI, Takanori IWATA, Tetsuya YODA, Masahiro HAKARIYA, Hiroki MASUDA
  • Publication number: 20230416509
    Abstract: A method for manufacturing a chloroprene polymer composition, the method including: a polymerization step of polymerizing chloroprene in the presence of at least one rosin acid component selected from the group consisting of a rosin acid and a rosin acid salt to obtain a chloroprene polymer composition containing a chloroprene polymer, in which in the rosin acid component, a mass ratio B1/A1 of a total amount B1 of abietic acid, neoabietic acid, palustric acid, levopimaric acid, and salts thereof with respect to a total amount A1 of dehydroabietic acid, pimaric acid, isopimaric acid, dihydroabietic acid, and salts thereof is 0.10 to 3.00, and a toluene insoluble content of the chloroprene polymer is 50% by mass or more.
    Type: Application
    Filed: September 17, 2021
    Publication date: December 28, 2023
    Applicant: Denka Company Limited
    Inventors: Misaki ITO, Masao ONOZUKA, Masahiro KATO
  • Publication number: 20230407149
    Abstract: Provided is an adhesive tape having a base material layer and an adhesive layer disposed on the base material layer, wherein the adhesive layer contains a radical photoinitiator and polymer A having polymerizable carbon double bonds, a tensile modulus of elasticity of the adhesive layer after ultraviolet irradiation is 400 MPa or less, and an elongation at break of the adhesive layer after ultraviolet irradiation is 16% or more.
    Type: Application
    Filed: October 20, 2021
    Publication date: December 21, 2023
    Applicant: Denka Company Limited
    Inventors: Chie NAKAMURA, Tomoaki TANAKA, Sota TOKUI, Mizuki HASUMI
  • Publication number: 20230407172
    Abstract: A phosphor powder including phosphor particles of a phosphor which is represented by a general formula Mx(Si, Al)2(N, O)3±y (where M is Li and one or more alkaline earth metal elements and 0.52?x?0.9 and 0.06?y?0.36 are satisfied) and in which a part of M is substituted with a Ce element, the phosphor powder includes phosphor particles in which a Si/Al atomic ratio is equal to or more than 1.5 and equal to or less than 6, an O/N atomic ratio is equal to or more than 0 and equal to or less than 0.1, 5 to 50 mol % of M is Li, and 0.5 to 10 mol % of M is Ce. A light absorption A700 of this phosphor powder at a wavelength of 700 nm is equal to or less than 10%.
    Type: Application
    Filed: November 4, 2021
    Publication date: December 21, 2023
    Applicant: DENKA COMPANY LIMITED
    Inventor: Hideyuki EMOTO
  • Publication number: 20230406777
    Abstract: One aspect of the present disclosure provides a hexagonal boron nitride powder including: primary particles of hexagonal boron nitride, in which the number of colored particles containing carbon is 50 or less per 10 g of the hexagonal boron nitride powder.
    Type: Application
    Filed: September 27, 2021
    Publication date: December 21, 2023
    Applicant: Denka Company Limited
    Inventor: Ryuki MATSUI
  • Publication number: 20230407171
    Abstract: A phosphor powder which is represented by a general formula Mx(Si, Al)2(N, O)3±y (where M is Li and one or more alkaline earth metal elements and 0.52?x?0.9 and 0.06?y?0.36 are satisfied) and in which a part of M is substituted with a Ce element, in which the phosphor powder includes phosphor particles in which a Si/Al atomic ratio is equal to or more than 1.5 and equal to or less than 6, an O/N atomic ratio is equal to or more than 0 and equal to or less than 0.1, 5 to 50 mol % of M is Li, and 0.5 to 10 mol % of M is Ce, and a diffuse reflectance X1 with respect to light having a wavelength of 700 nm is equal to or more than 88% and equal to or less than 99.9%.
    Type: Application
    Filed: November 4, 2021
    Publication date: December 21, 2023
    Applicant: DENKA COMPANY LIMITED
    Inventor: Hideyuki EMOTO
  • Publication number: 20230399498
    Abstract: A rubber composition of a first embodiment contains 100 parts by mass of a chloroprene polymer, more than 0 parts by mass and 25 parts by mass or less of a diene-based polymer having an epoxy group, and 0.3 to 1.8 parts by mass of an organic peroxide, in which the chloroprene polymer includes a copolymer of chloroprene. A rubber composition of a second embodiment contains 100 parts by mass of a chloroprene polymer, more than 0 parts by mass and 25 parts by mass or less of a diene-based polymer having an epoxy group, and 0.3 to 1.8 parts by mass of an organic peroxide, in which the chloroprene polymer includes a homopolymer of chloroprene.
    Type: Application
    Filed: August 4, 2021
    Publication date: December 14, 2023
    Applicant: Denka Company Limited
    Inventors: Atsunori KONDO, Nobuhiko FUJII
  • Publication number: 20230399497
    Abstract: A chloroprene-based rubber composition capable of obtaining a vulcanizate having excellent compression set resistance and excellent heat resistance, a vulcanizate of the chloroprene-based rubber composition, and a vulcanized molded body of the chloroprene-based rubber composition having excellent compression set resistance and heat resistance. A chloroprene-based rubber composition including 100 parts by mass of a chloroprene-based rubber, 0.1 to 10 parts by mass of an organic peroxide, and 0.1 to 40 parts by mass of a compound having one or more thioether structures is provided.
    Type: Application
    Filed: November 19, 2021
    Publication date: December 14, 2023
    Applicant: DENKA COMPANY LIMITED
    Inventors: Yuki SAKAI, Atsunori KONDO
  • Publication number: 20230399264
    Abstract: One aspect of the present disclosure provides a boron nitride powder containing agglomerated particles formed by agglomeration of primary particles of hexagonal boron nitride, in which a degree of purity is 98.5% by mass or more, and a number of particles containing carbon is 10 or less per 10 g of the boron nitride powder.
    Type: Application
    Filed: September 27, 2021
    Publication date: December 14, 2023
    Applicant: Denka Company Limited
    Inventors: Go TAKEDA, Hiroyuki SHIOTSUKI, Takaaki TANAKA
  • Publication number: 20230383102
    Abstract: A rubber composition containing 100 parts by mass of a chloroprene polymer, more than 0 parts by mass and 25 parts by mass or less of a diene-based polymer having an epoxy group, and 0.2 to 2.5 parts by mass of at least one selected from the group consisting of a thiourea compound and a thiazolidinethione compound. A vulcanizate and a vulcanized molded article of the rubber composition.
    Type: Application
    Filed: August 5, 2021
    Publication date: November 30, 2023
    Applicant: Denka Company Limited
    Inventors: Atsunori KONDO, Nobuhiko FUJII
  • Publication number: 20230383082
    Abstract: A rubber foam composition containing a sulfur-modified chloroprene rubber and a chemical foaming agent, in which the sulfur-modified chloroprene rubber has a functional group A represented by specific General Formula (A) and positioned at a molecular terminal, in the sulfur-modified chloroprene rubber, a mass ratio B/A of a content of a functional group B represented by specific General Formula (B) and positioned at a molecular terminal with respect to a content of the functional group A is 12.00 or less, a total amount of the functional group A and the functional group B is 0.10 to 1.00% by mass, and a content of the chemical foaming agent is 3 to 16 parts by mass with respect to a total of 100 parts by mass of the sulfur-modified chloroprene rubber, a thiazole compound, and a dithiocarbamic acid-based compound.
    Type: Application
    Filed: September 10, 2021
    Publication date: November 30, 2023
    Applicant: Denka Company Limited
    Inventors: Atsunori KONDO, Takashi SUNADA
  • Publication number: 20230374189
    Abstract: The thermally conductive resin composition containing: 5 to 95 parts by weight of a copolymer (a) having a (meth)acrylic monomer unit A having an anionic group, a (meth)acrylic monomer unit B having a cationic group, and a silicone (meth)acrylic monomer unit C; 95 to 5 parts by weight of a silicone resin (b); and 500 to 3000 parts by weight of a thermally conductive filler (c) having a thermal conductivity of 10 W/mK or more, wherein a total content of the copolymer (a) and the silicone resin (b) is 100 parts by weight, and the silicone resin (b) includes a crosslinked silicone resin (b-1), wherein a content of the crosslinked silicone resin (b-1) is 5 to 100 mass % based on the total amount of the silicone resin (b).
    Type: Application
    Filed: October 5, 2021
    Publication date: November 23, 2023
    Applicant: Denka Company Limited
    Inventors: Kazuyuki IGARASHI, Masao ONOZUKA
  • Publication number: 20230375559
    Abstract: Provided are a measuring reagent and a method for accurately measuring a high concentration of ferritin. The ferritin measuring reagent and the method for measuring ferritin are characterized by using liver-derived ferritin as a standard-solution raw material.
    Type: Application
    Filed: September 24, 2021
    Publication date: November 23, 2023
    Applicant: Denka Company Limited
    Inventors: Yuki HIRAKAWA, Takamichi TAKAHASHI, Ritsuko TACHIBANA
  • Publication number: 20230374363
    Abstract: The thermally conductive resin composition containing: 5 to 95 parts by weight of a copolymer (a) having a (meth)acrylic monomer unit A having an anionic group, a (meth)acrylic monomer unit B having a cationic group, and a silicone (meth)acrylic monomer unit C; 95 to 5 parts by weight of a silicone resin (b); and 500 to 3000 parts by weight of a thermally conductive filler (c) having a thermal conductivity of 10 W/mK or more, wherein a total content of the copolymer (a) and the silicone resin (b) is 100 parts by weight.
    Type: Application
    Filed: October 5, 2021
    Publication date: November 23, 2023
    Applicant: Denka Company Limited
    Inventors: Kazuyuki IGARASHI, Masao ONOZUKA