Patents Assigned to SHOWA DENKO
  • Method for producing joined body, and joining material
    Patent number: 11483936
    Abstract: Provided is a method for producing a joined body, the method including a first step of preparing a laminated body which includes a first member having a metal pillar provided on a surface thereof, a second member having an electrode pad provided on a surface thereof, and a joining material provided between the metal pillar and the electrode pad and containing metal particles and an organic compound, and a second step of heating the laminated body to sinter the joining material at a predetermined sintering temperature, in which the joining material satisfies the condition of the following Formula (I): (M1?M2)/M1×100?1.0??(I) [in Formula (I), M1 represents a mass of the joining material when a temperature of the joining material reaches the sintering temperature in the second step, and M2 represents a non-volatile content in the joining material.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: October 25, 2022
    Assignee: Showa Denko Materials Co., Ltd.
    Inventors: Hideo Nakako, Yoshinori Ejiri, Dai Ishikawa, Chie Sugama, Yuki Kawana, Motohiro Negishi, Yuichi Yanaka
  • Two-part curable urethane-based composition
    Patent number: 11479667
    Abstract: A two-part curable urethane-based composition comprising a main agent (A); and a curing agent (B), wherein the main agent (A) contains a urethane prepolymer (a), an isocyanurate modified product of a polyisocyanate compound (b), and a silane coupling agent (c) in a specified ratio, the curing agent (B) contains a polyol (d) having a hydroxyl value of 50 to 500 mgKOH/g and an amine catalyst (e) in a specified amount, a mixing mass ratio of the main agent (A) to the curing agent (B) is 3:1 to 10:1, and an equivalent ratio of NCO group/OH group in the main agent (A) and the curing agent (B), respectively, is 1.0 to 5.0.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: October 25, 2022
    Assignee: Showa Denko Materials Co., Ltd.
    Inventors: Yuya Hiramoto, Hisao Matsumiya, Kazuhiko Mori
  • Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
    Patent number: 11479641
    Abstract: A fluorine-containing ether compound characterized by being represented by the following formula (1): R1—R2—CH2—R3—CH2—R4—R5??(1) In the formula (1), R3 is a perfluoropolyether chain. R2 and R4 are divalent linkage groups having a polar group and may be the same or different. R1 and R5 are bonded to an atom other than a carbon atom of R2 or R4. R1 and R5 are terminal groups composed of an organic group having 1 to 8 carbon atoms and may be the same or different. At least one of R1 and R5 is a chain organic group having 1 to 8 carbon atoms wherein one or more hydrogen atoms of the chain organic group is substituted with a group having an amide bond.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: October 25, 2022
    Assignee: SHOWA DENKO K.K.
    Inventor: Tsuyoshi Kato
  • Organic electronics material and organic electronics element
    Patent number: 11476421
    Abstract: One embodiment relates to an organic electronic material containing a charge transport polymer, wherein the charge transport polymer is a polymer which, when 25 ?L portions of methanol are added dropwise and stirred into 1,000 ?L of a solution containing the charge transport polymer and toluene in a ratio of 20 mg of the charge transport polymer per 2,290 ?L of toluene, the amount of methanol added by the time cloudiness develops in the solution is greater than 350 ?L.
    Type: Grant
    Filed: July 4, 2018
    Date of Patent: October 18, 2022
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Kazuyuki Kamo, Iori Fukushima, Ryota Moriyama, Shunsuke Kodama, Naoki Asano, Hirotaka Sakuma
  • POSITIVE-TYPE PHOTOSENSITIVE RESIN COMPOSITION AND PARTITION WALL OF ORGANIC EL ELEMENT
    Publication number: 20220326614
    Abstract: Provided is a high-sensitive photosensitive resin composition which contains a black colorant and by which development and pattern formation are possible even with a low exposure amount. A positive-type photosensitive resin composition according to one embodiment contains: a first resin (A) having a plurality of phenolic hydroxyl groups, at least some of which are protected with an acid-labile group; a second resin (B) having an epoxy group and a phenolic hydroxyl group; at least one colorant (C) selected from the group consisting of a black dye and a black pigment; and a photoacid generator (D).
    Type: Application
    Filed: June 3, 2020
    Publication date: October 13, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Yasuhiro ISHIDA, Kentaro FURUE, Yoshikazu ARAI, Mitsuhiro IWASAKI, Hideo HORIBE
  • HIGHLY HEAT-RESISTANT ANATASE-TYPE TITANIUM OXIDE AND METHOD FOR PRODUCING THE SAME
    Publication number: 20220324719
    Abstract: Highly heat-resistant anatase-type titanium oxide particles stably retard an anatase-type crystal phase having excellent reactivity in a temperature range of 700° C., and have fine particles and a uniform particle size distribution. The highly heat-resistant anatase-type titanium oxide includes titanium oxide particles having a content of an anatase crystal phase in the total crystal phases of 85% or more and a modification layer provided on the surfaces of the titanium oxide particles. The modification layer is obtained by modifying an organic acid having a molecular weight of 200 or less with an acidic solution containing 1.5×10?4 mol/L or more and 0.12 mol/L or less. The pH of the acidic solution is 0.2 to 5.
    Type: Application
    Filed: December 2, 2020
    Publication date: October 13, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Hideaki CHIKAMI, Kei MIZUE, Hiroki MATOBA
  • METAL REMOVAL METHOD, DRY ETCHING METHOD, AND PRODUCTION METHOD FOR SEMICONDUCTOR ELEMENT
    Publication number: 20220325418
    Abstract: A metal removal method which includes: a reaction step of bringing a treatment gas containing a fluorine-containing interhalogen compound and a metal-containing material containing a metal element into contact with each other to generate metal fluoride which is a reaction product of the fluorine-containing interhalogen compound and the metal element; and a volatilization step of heating the metal fluoride under an inert gas atmosphere or in a vacuum environment for volatilization. The metal element is at least one kind selected from iron, cobalt, nickel, selenium, molybdenum, rhodium, palladium, tungsten, rhenium, iridium, and platinum. Also disclosed is a dry etching method using the metal removal method and a production method for a semiconductor element using the dry etching method.
    Type: Application
    Filed: April 17, 2020
    Publication date: October 13, 2022
    Applicant: SHOWA DENKO K.K.
    Inventor: Kazuma MATSUI
  • Epoxy resin, epoxy resin composition, epoxy resin cured product, and composite material
    Patent number: 11466119
    Abstract: An epoxy resin, comprising an epoxy compound having a mesogenic structure, the epoxy compound comprising a first epoxy compound having one biphenyl structure in a molecule and a second epoxy compound that is different from the first epoxy compound, at a mass ratio of the first epoxy compound to the second epoxy compound (first epoxy compound:second epoxy compound) of from 10:100 to 50:100.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: October 11, 2022
    Assignee: Showa Denko Materials Co., Ltd.
    Inventors: Kazumasa Fukuda, Yoshitaka Takezawa, Naoki Maruyama, Yuka Yoshida, Tomoko Higashiuchi
  • MAGNETIZATION MEASUREMENT DEVICE AND MAGNETIZATION MEASUREMENT METHOD
    Publication number: 20220317209
    Abstract: A magnetization measurement device includes: a current supply part supplying a periodically changing current to a sample made of a soft magnetic material with uniaxial magnetic anisotropy in a first direction and a bias magnetic field applied in a second direction crossing the first direction; a light irradiation part irradiating a surface of the sample with linearly polarized pulse light having a predetermined delay time with respect to the current and having a predetermined polarized surface; and a measurement part measuring magnetization of the sample at the delay time based on reflected light of the pulse light reflected by the surface of the sample. These enable the measurement of the change in the magnetization of the sample over time, which corresponds to supply of the periodically changing current.
    Type: Application
    Filed: June 29, 2020
    Publication date: October 6, 2022
    Applicant: SHOWA DENKO K.K.
    Inventor: Tatsunori SHINO
  • Method for Manufacturing Cell Suspension and Method for Manufacturing Adherent Cells
    Publication number: 20220315898
    Abstract: One embodiment relates to a method for manufacturing a cell suspension, the method including (A), (B) and (C) described below: (A) culturing adherent cells in a cell suspension containing the adherent cells, a microcarrier and a medium, and having a volume of at least 0.3 L, (B) culturing the adherent cells in a cell suspension containing the adherent cells obtained through (A), a microcarrier and a medium, and having a volume of at least 5 L, and (C) culturing the adherent cells in a cell suspension containing the adherent cells obtained through (B), a microcarrier and a medium, and having a volume of at least 10 L.
    Type: Application
    Filed: December 22, 2020
    Publication date: October 6, 2022
    Applicant: Showa Denko Materials Co., Ltd.
    Inventors: Shangwu Chen, Fumiko Nakagawa, Yasuhiko Tada, Masahiro Okanojo, Yushi Sato, Yuma Suzuki, Katsuhiko Nakashima, Ryosuke Takahashi
  • ENCAPSULATING MATERIAL FOR COMPRESSION MOLDING AND ELECTRONIC PART DEVICE
    Publication number: 20220315793
    Abstract: An encapsulating material for compression molding includes an epoxy resin, a curing agent, and an inorganic filler. In an image obtained by observing, with an ultrasonic flaw detector, a compression-molded body formed by compression-molding the encapsulating material for compression molding on a substrate with a silicon chip interposed, the area of the portion other than dark spots of the region corresponding to the compression-molded body on the chip is 86% or more of the area of the entire region corresponding to the compression-molded body on the chip.
    Type: Application
    Filed: September 11, 2020
    Publication date: October 6, 2022
    Applicant: Showa Denko Materials Co., Ltd.
    Inventors: Dongchul KANG, Seigo OKUBO
  • FIXED-BED MULTI-TUBULAR REACTOR FOR PRODUCING ALKENYL ACETATE
    Publication number: 20220314181
    Abstract: A fixed-bed multi-tubular reactor for producing an alkenyl acetate by a gas phase catalytic oxidation reaction of a lower olefin, acetic acid and oxygen including a plurality of reaction tubes, a thermometer protection tube inserted into at least one of the plurality of reaction tubes, a thermometer inserted into the thermometer protection tube, and a shield disposed above the reaction tube into which the thermometer protection tube is inserted and attached to the thermometer protection tube, wherein an effective projection region of the shield entirely covers the inlet opening of the reaction tube into which the thermometer protection tube is inserted.
    Type: Application
    Filed: October 28, 2020
    Publication date: October 6, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Yasuhiro IWAMA, Maiko IKUSHIMA, Kazuki UMEHARA, Mitsuru TANAKA, Toshiyuki MAKI
  • Electrochemical device electrode. method for producing electrochemical device electrode and electrochemical device
    Patent number: 11462767
    Abstract: Disclosed is an electrochemical device electrode comprising an electrode current collector and an electrode mixture layer provided on at least one principal surface of the electrode current collector, wherein the electrode mixture layer comprises an electrode active material, a polymer having a structural unit represented by the following formula (1), at least one electrolyte salt selected from the group consisting of lithium salts, sodium salts, calcium salts, and magnesium salts, and a molten salt having a melting point of 250° C. or less: wherein X? represents a counter anion.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: October 4, 2022
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Yusuke Sera, Hideyuki Ogawa, Hiroki Mikuni
  • SiC ingot and method of manufacturing SiC ingot
    Patent number: 11459669
    Abstract: A SiC ingot includes a core portion; and a surface layer that is formed on a plane of the core portion in a growing direction, and a coefficient of linear thermal expansion of the surface layer is smaller than a coefficient of linear thermal expansion of the core portion.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: October 4, 2022
    Assignee: SHOWA DENKO K.K.
    Inventors: Rimpei Kindaichi, Yohei Fujikawa, Yoshishige Okuno
  • Charge-transport material and utilization thereof
    Patent number: 11459462
    Abstract: A charge transport material containing a charge transport polymer that satisfies at least one of (I) or (II) described below: (I) to independently have both a monovalent substituent having an alicyclic structure of 7 or more carbon atoms, and a monovalent substituent having a carbonyl-containing group; and (II) to have a monovalent substituent that includes a monovalent substituent having an alicyclic structure of 7 or more carbon atoms bonded directly to a carbonyl-containing group.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: October 4, 2022
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Kazuyuki Kamo, Naoki Asano, Hiroshi Takaira, Iori Fukushima, Shigeaki Funyuu
  • Metal paste for joints, assembly, production method for assembly, semiconductor device, and production method for semiconductor device
    Patent number: 11462502
    Abstract: Provided is a metal paste for joints, containing: metal particles; and linear or branched monovalent aliphatic alcohol having 1 to 20 carbon atoms, in which the metal particles include sub-micro copper particles having a volume average particle diameter of 0.12 ?m to 0.8 ?M.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: October 4, 2022
    Assignee: Showa Denko Materials Co., Ltd.
    Inventors: Yuki Kawana, Hideo Nakako, Motohiro Negishi, Dai Ishikawa, Chie Sugama, Yoshinori Ejiri
  • Cell recovery apparatus, cell recovery method, cell separation system, and cell separation method
    Publication number: 20220306980
    Abstract: Apparatus, system, and method are disclosed for cell recovery or cell separation. A cell separation system has at least a first container having a first filter for separating a first removal target from a suspension comprising cells and a removal target including at least the first removal target and a second removal target; a cell separation apparatus; a first flow path connecting the first container and the cell separation apparatus; and a first pump interposed in the first flow path for transferring the suspension from the first container to the cell separation apparatus by decompression suction, for example.
    Type: Application
    Filed: December 15, 2020
    Publication date: September 29, 2022
    Applicant: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Yushi Sato, Masahiro Okanojo, Shangwu Chen, Katsuhiko Nakashima, Ryosuke Takahashi, Yasuhiko Tada
  • LITHIUM ION-CONDUCTING OXIDE
    Publication number: 20220311001
    Abstract: A lithium ion-conducting oxide including at least lithium, tantalum, M1, phosphorus, and oxygen as constituent elements. M1 is at least one metal element selected from elements of the Group 4, the Group 5, the Group 6, the Group 13, and the Group 14 (provided that tantalum is excluded), a ratio of number of atoms of each constituent element of lithium, tantalum, M1, phosphorus, and oxygen is 1:2?x:x:1:8, wherein x is more than 0 and less than 1, and the lithium ion-conducting oxide contains a monoclinic crystal. Also disclosed is a lithium-ion secondary battery including the lithium ion-conducting oxide.
    Type: Application
    Filed: August 26, 2020
    Publication date: September 29, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Ryosuke SEI, Kunchan LEE, Shunsuke KURAHASHI
  • MAGNETIC SENSOR
    Publication number: 20220308126
    Abstract: In a magnetic sensor using sensitive circuits sensing magnetic fields by the magnetic impedance effect, a sensitivity-to-noise ratio is improved. A magnetic sensor 10 includes: a sensitive circuit 12A including sensitive parts sensing magnetic fields by magnetic impedance effect; and a sensitive circuit 12B including sensitive parts sensing magnetic fields by magnetic impedance effect, wherein at least a part of current paths of the sensitive circuit 12A and at least a part of current paths of the sensitive circuit 12B overlap in a plan view, and one end portion of the sensitive circuit 12A and one end portion of the sensitive circuit 12B are electrically connected.
    Type: Application
    Filed: March 7, 2022
    Publication date: September 29, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Hiroyuki TOMITA, Isao KABE
  • MAGNETIC SENSOR
    Publication number: 20220308124
    Abstract: Sensitivity of a magnetic sensor using the magnetic impedance effect is improved. A magnetic sensor includes: a non-magnetic substrate; a sensitive element provided on the substrate, including a soft magnetic material, having a longitudinal direction and a short direction, provided with uniaxial magnetic anisotropy in a direction intersecting the longitudinal direction, and sensing a magnetic field by a magnetic impedance effect; and a protrusion part including a soft magnetic material and protruding from an end portion in the longitudinal direction of the sensitive element.
    Type: Application
    Filed: March 15, 2022
    Publication date: September 29, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Sho TONEGAWA, Akira Sakawaki, Rimpei Kindaichi