Patents Assigned to Showa Denko K.K.
  • COMPOSITE MATERIAL, MANUFACTURING METHOD THEREFOR, NEGATIVE ELECTRODE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY, AND THE LIKE
    Publication number: 20220399538
    Abstract: An object of the present invention is to provide a composite material usable as a negative electrode material of a lithium-ion secondary battery. A composite material of the present invention includes: a carbonaceous material; and a metal oxide layer coating a surface of the carbonaceous material, in which the metal oxide layer coats the surface of the carbonaceous material, forming a sea-island structure in which the metal oxide layer is scattered in islands, and a coating rate of the carbonaceous material with the metal oxide layer is 20% or more and 80% or less. A composite material of the present invention includes: a carbonaceous material; and a metal oxide layer and amorphous carbon layer coating the surface of the carbonaceous material, in which the metal oxide layer is scattered in islands on the surface of the carbonaceous material.
    Type: Application
    Filed: November 10, 2020
    Publication date: December 15, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Akihisa TONEGAWA, Hirofumi INOUE, Daisuke KOHNO, Jinseok BAEK
  • Magnetic sensor and magnetic sensor manufacturing method
    Patent number: 11525871
    Abstract: A magnetic sensor 1 includes: a nonmagnetic substrate 10; a sensitive element 31 laminated on the substrate 10, the sensitive element 31 being made of a soft magnetic material, the sensitive element 31 having a longitudinal direction and a transverse direction and having uniaxial magnetic anisotropy in a direction intersecting the longitudinal direction, the sensitive element 31 being configured to sense a magnetic field by a magnetic impedance effect; and a pair of thin-film magnets 20a, 20b laminated on the substrate 10 and disposed to face each other in the longitudinal direction across the sensitive element 31, the pair of thin-film magnets 20a, 20b being configured to apply a magnetic field in the longitudinal direction of the sensitive element 31.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: December 13, 2022
    Assignee: SHOWA DENKO K. K.
    Inventors: Daizo Endo, Tatsunori Shino, Haruhisa Ohashi
  • Organic fluorine compound, lubricant, and processing method of magnetic recording medium
    Patent number: 11525032
    Abstract: According to one aspect of the present invention, an organic fluorine compound is represented by a general formula (R-?-E-CH2-A-CH2-E?)n-??-G??(1B) (where n is an integer of 2 to 5, A is a divalent perfluoropolyether group, ? is an arylene group or a single bond, R is an alkenyl group or an alkynyl group, and E and E? are each independently an ether bond or an ester bond or a group that is represented by a chemical formula —O—CH2CH(OH)CH2O— ?? is a group in which n+1 hydrogen atoms are separated from benzene, G is an organic group containing a fullerene skeleton, the n number of groups each of which is represented by a general formula R-?-E-CH2-A-CH2-E?- may be the same or different, and at least one ? among the n number of ? is an arylene group).
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: December 13, 2022
    Assignee: SHOWA DENKO K.K.
    Inventors: Kentaro Watanabe, Yasuyuki Ueda, Kenzo Hanawa
  • MAGNETIC SENSOR
    Publication number: 20220390531
    Abstract: A magnetic sensor 1 includes a plurality of sensitive elements 31 made of a soft magnetic material. The sensitive elements 31 have a longitudinal direction and a transverse direction and have a uniaxial magnetic anisotropy in a direction intersecting the longitudinal direction. The sensitive elements 31 are configured to sense a magnetic field by a magnetic impedance effect. The sensitive elements 31 are arranged with a gap in between in the transverse direction. The magnetic sensor 1 includes a connecting portion 32 configured to connect longitudinal ends of transversely adjacent ones of the sensitive elements 31. The connecting portion 32 has a width in the transverse direction that narrows as the connecting portion 32 approaches the ones of the sensitive elements 31 along the longitudinal direction.
    Type: Application
    Filed: August 17, 2020
    Publication date: December 8, 2022
    Applicant: SHOWA DENKO K.K.
    Inventor: Tatsunori SHINO
  • Pedestal for supporting a seed for SiC single crystal growth which includes a gas-permeable region of reduced thickness
    Patent number: 11519096
    Abstract: A pedestal 103 of the present invention is a pedestal 103 for a seed 102 for crystal growth, in which one main surface 103a to which the seed 102 adheres is flat, and the pedestal has a gas-permeable region 106 which a thickness from the one main surface 103a that is formed to be locally thin.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: December 6, 2022
    Assignee: SHOWA DENKO K.K.
    Inventor: Shunsuke Noguchi
  • FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING MEDIUM
    Publication number: 20220380695
    Abstract: A fluorine-containing ether compound represented by the following formula (1). C6H6-n—[O—R1—O—CH2—R2—CH2—R3]n??(1) (in the formula (1), n is an integer of 2 or 3, R1 is any one of —CH2CH2—, —CH2CH2CH2— and —CH2CH(OH)CH2—, R2 is a perfluoropolyether chain, R3 is —OCH2CH(OH)CH2O(CH2)mOH (m in the formula is an integer of 2 to 4)).
    Type: Application
    Filed: September 8, 2020
    Publication date: December 1, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Naoya FUKUMOTO, Daisuke YAGYU, Katsumi MUROFUSHI, Katsumi MUROFUSHI
  • MAGNETIC SENSOR
    Publication number: 20220381853
    Abstract: A magnetic sensor includes: a non-magnetic substrate; and a sensitive element 31 having a longitudinal direction and a short direction, provided with uniaxial magnetic anisotropy in a direction crossing the longitudinal direction, and sensing a magnetic field by a magnetic impedance effect, wherein the sensitive element 31 includes plural soft magnetic material layers 105a to 105d and plural non-magnetic material layers 106a to 106c configured with a non-magnetic material and laminated between the plural soft magnetic material layers 105a to 105d, and the soft magnetic material layers 105a to 105d facing each other with each of the non-magnetic material layers 106a to 106c interposed therebetween are antiferromagnetically coupled.
    Type: Application
    Filed: November 17, 2020
    Publication date: December 1, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Daizo ENDO, Tatsunori SHINO, Akira SAKAWAKI, Sho TONEGAWA, Yasumasa WATANABE
  • Lubricant for magnetic recording medium, and method for producing magnetic recording medium
    Patent number: 11514945
    Abstract: A lubricant for a magnetic recording medium capable of forming a lubricant layer having excellent adhesion to a protective layer is provided. A lubricant for a magnetic recording medium contains a fluorine-containing ether compound in which a group having an ethylenic carbon-carbon double bond is disposed at one or both terminals of a perfluoroalkyl polyether chain. It is preferable that the group having the ethylenic carbon-carbon double bond is disposed at one terminal of the perfluoroalkyl polyether chain, and a hydroxyl group is disposed at other terminal. It is preferable that the lubricant for a magnetic recording medium contains a compound in which one or more functional groups selected from a hydroxyl group, an amino group, an amido group and a carboxyl group is disposed at one or both terminals of a perfluoroalkyl polyether chain.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: November 29, 2022
    Assignee: SHOWA DENKO K.K.
    Inventors: Hiroyuki Tomita, Hiroko Hattori, Naoya Fukumoto, Ryuuta Miyasaka, Naoko Ito, Ichiro Ota, Katsumi Murofushi
  • Carbon fiber and method of manufacturing same
    Patent number: 11512424
    Abstract: A carbon fiber is obtained by sequentially performing: a step (I) of dissolving a fullerene mixture including fullerenes C60 and C70 in an organic solvent to prepare a fullerene solution; a step (II) of immersing a material carbon fiber in the fullerene solution; and a step (III) of extracting the carbon fiber from the fullerene solution and drying the extracted carbon fiber.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: November 29, 2022
    Assignee: SHOWA DENKO K.K.
    Inventors: Takeshi Igarashi, Tomoyuki Takei, Yu Gao, Masumi Kuritani
  • TRANSPARENT CONDUCTING FILM LAMINATE AND PROCESSING METHOD THEREOF
    Publication number: 20220371310
    Abstract: Provided are a transparent conducting film laminate capable of controlling a curl during and after the heating, and a processing method thereof. A transparent conducting film laminate comprising a transparent conducting film 10, and a carrier film 1 stacked on the transparent conducting film 10, wherein the carrier film is a polycarbonate film having no adhesive agent layer, the transparent conducting film 10 comprises a transparent resin film 2, a transparent conducting layer 3 containing metal nanowires and a binder resin, and an overcoat layer 4 stacked in this order, the transparent resin film 2 is made of an amorphous cycloolefin-based resin, and the carrier film to be releasably stacked on a main face of the transparent conducting film 2, the main face being opposite to the face on which the transparent conducting layer 3 is stacked.
    Type: Application
    Filed: October 13, 2020
    Publication date: November 24, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Shigeru YAMAKI, Shuhei YONEDA
  • PLANT VITALIZER CONTAINING CELLO-OLIGOSACCHARIDE, AND USE FOR SAID PLANT VITALIZER
    Publication number: 20220369568
    Abstract: Physiological processes in plants are regulated and reinforced, and crop vitality, yield, quality and post-harvesting storage life are improved. A plant vitalizer that includes a cellooligosaccharide is applied to the plants.
    Type: Application
    Filed: June 15, 2020
    Publication date: November 24, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Ichiro FUJITA, Makoto SAITO, Hiroshi UCHIDA, Hisashi KIMOTO
  • FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING MEDIUM
    Publication number: 20220372390
    Abstract: A fluorine-containing ether compound represented by the following formula (1). R1—R2—CH2—R3—CH2—R4??(1) (R1 is an organic group having an alicyclic structure having 3 to 13 carbon atoms; R2 is represented by the following formula (2), and a in the formula (2) is an integer of 1 to 3; R3 is a perfluoropolyether chain; and R4 is a terminal group having two or three polar groups, in which individual polar groups bond to different carbon atoms and the carbon atoms to which the polar groups bond are bonded to each other through a linking group having a carbon atom to which the polar groups do not bond.
    Type: Application
    Filed: September 8, 2020
    Publication date: November 24, 2022
    Applicant: SHOWA DENKO K.K.
    Inventor: Ayano ASANO
  • PLANT ACTIVATOR CONTAINING AMINO ACID OR SALT THEREOF, AND OLIGOSACCHARIDE, AND USE THEREOF
    Publication number: 20220369569
    Abstract: Physiological processes in plants are regulated and reinforced, and crop vitality, yield, quality and post-harvesting storage life are improved. A plant vitalizer containing an amino acid or its salt and an oligosaccharide is applied to plants.
    Type: Application
    Filed: June 15, 2020
    Publication date: November 24, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Ichiro FUJITA, Makoto SAITO, Hiroshi UCHIDA, Hisashi KIMOTO
  • SILICON-CONTAINING OXIDE-COATED ALUMINUM NITRIDE PARTICLE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20220363912
    Abstract: A silicon-containing oxide-coated aluminum nitride particle including an aluminum nitride particle and a silicon-containing oxide coating covering the surface of the aluminum nitride particle. The content of carbon atoms is less than 1000 ppm by mass, and an Si/Al atom ratio of the surface as measured by AES analysis is 0.29 or more and 5.0 or less. In another aspect, the coverage of the silicon-containing oxide coating covering the surface of the aluminum nitride particle as measured by LEIS analysis is 15% or more and 100% or less.
    Type: Application
    Filed: June 30, 2022
    Publication date: November 17, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Yuki Otsuka, Hidetoshi Okamoto, Naoki Minorikawa
  • FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING MEDIUM
    Publication number: 20220356159
    Abstract: A fluorine-containing ether compound represented by the formula (1) is provided. The fluorine-containing ether compound is represented by the following formula (1). R1—R2—CH2—R3—CH2—R4 (1) (R3 is a perfluoropolyether chain; R1 is the formula (2), a in the formula (2) is an integer of 2 or 3, R5 and R6 are the same or different substituents. R5 and R6 may form a ring structure together with a nitrogen atom; R2 is the formula (3), b in the formula (3) is an integer of 1 to 3; R4 is a terminal group having two or three polar groups, in which individual polar groups bond to different carbon atoms and the carbon atoms to which the polar groups bond are bonded to each other through a linking group having a carbon atom to which the polar groups do not bond.
    Type: Application
    Filed: September 8, 2020
    Publication date: November 10, 2022
    Applicant: SHOWA DENKO K.K.
    Inventor: Natsumi SHIBATA
  • PLANT VITALIZING AGENT CONTAINING EXOGENOUS ELICITOR AND ENDOGENOUS ELICITOR AND USE THEREOF
    Publication number: 20220354116
    Abstract: Physiological processes in plants are regulated and reinforced, and crop vitality, yield, quality and post-harvesting storage life are improved. A plant vitalizer comprising an exogenous elicitor and an endogenous elicitor is applied to plants.
    Type: Application
    Filed: June 15, 2020
    Publication date: November 10, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Ichiro FUJITA, Makoto SAITO, Hiroshi UCHIDA, Hisashi KIMOTO
  • LITHIUM ION-CONDUCTING OXIDE
    Publication number: 20220359907
    Abstract: An embodiment of the present invention relates to a lithium ion-conducting oxide or a lithium-ion secondary battery. The lithium ion-conducting oxide includes at least lithium, tantalum, phosphorus, M2, and oxygen as constituent elements, wherein M2 is at least one element selected from the group consisting of elements of the Group 14 and Al (provided that carbon is excluded), a ratio of number of atoms of each constituent element of lithium, tantalum, phosphorus, M2, and oxygen is 1:2:1?y:y:8, wherein y is more than 0 and less than 0.7, and the lithium ion-conducting oxide contains a monoclinic crystal.
    Type: Application
    Filed: August 26, 2020
    Publication date: November 10, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Ryosuke SEI, Kunchan LEE, Shunsuke KURAHASHI
  • Anode mounting member of fluorine electrolytic cell, fluorine electrolytic cell, and method for producing fluorine gas
    Patent number: 11492712
    Abstract: An anode mounting member (16) of a fluorine electrolytic cell including: a plurality of stacked annular packings surrounding a sidewall of a cylindrical anode packing gland (14); a cylindrical exterior member (23) surrounding an outer periphery of the packings; and an annular fastening member (24) that fastens the plurality of packings and the exterior member (23) to the anode packing gland (14), wherein among the packings a first ceramic packing (17) is located at an end of the longitudinal direction on an electrolyte tank side, and a second resin packing (18) is adjacent to the first packing (17), central axes of the anode packing gland (14) and the exterior member (23) coincide, an inner diameter (17r) is 0.2 mm to 1.0 mm larger than an outer diameter (14R), and an outer diameter (17R) is 0.2 mm to 1.0 mm smaller than an inner diameter (23r).
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: November 8, 2022
    Assignee: SHOWA DENKO K.K.
    Inventors: Yohsuke Fukuchi, Nozomi Inoue, Hiroshi Kobayashi
  • METHOD FOR PRODUCING TRANSPARENT CONDUCTING FILM
    Publication number: 20220344072
    Abstract: Provided is a transparent conducting film containing metal nanowires, the conducting film having a preferable optical property, electrical property, and having almost no in-plane resistance anisotropy. A method for producing a transparent conducting film provided with a conducting layer containing a metal nanowire and a binder resin, comprising steps of: preparing a coating liquid containing the metal nanowire and the binder resin, and coating the coating liquid on one main face of a transparent substrate, the coating step being performed by a bar-coater with a bar which has a bar surface constituted by a material having a friction coefficient of 0.05 to 0.
    Type: Application
    Filed: May 29, 2020
    Publication date: October 27, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Shigeru YAMAKI, Shuhei YONEDA
  • HEAT EXCHANGER
    Publication number: 20220341671
    Abstract: A heat exchanger includes a heat transfer portion configured as a heat exchange flow path and an inlet/outlet formation portion provided with an inlet/outlet. The heat transfer portion includes a hollow interior portion. An interior of the inlet/outlet formation portion is connected to the heat exchange flow path. Heat exchange is performed between the medium passing through the heat exchange flow path and a heat exchange target member arranged on an outer surface of the heat transfer portion. At least a part of the outer surface of the heat transfer portion is configured by a coating sheet formed of a laminate material in which a resin coating layer is provided on at least one surface side of a metal heat transfer layer. An external thickness of the inlet/outlet formation portion is formed to be thicker than an external thickness of the heat transfer portion.
    Type: Application
    Filed: September 2, 2020
    Publication date: October 27, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Shunsuke IGAWA, Masaki YAMANAKA