Patents Assigned to Kaneka Corporation
  • Publication number: 20210163646
    Abstract: Expandable resin particles that have a reduced VOC content, a method of producing the expandable resin particles, and a foamed molded product that has reduced VOC emission are provided. The expandable resin particles contain a base material resin containing, as a structural unit, a styrene unit and an acrylonitrile unit and an expanding agent. The expandable resin particles have a styrene content and an ethylbenzene content each of which is not more than a specific amount.
    Type: Application
    Filed: February 8, 2021
    Publication date: June 3, 2021
    Applicant: KANEKA CORPORATION
    Inventors: Atsushi Iida, Mitsuhiro Tamura, Yoichi Ohara
  • Publication number: 20210161640
    Abstract: Provided is an in-vivo indwelling tube having a high flap strength and passing smoothly through a conduit of an endoscope. A tubular member having a proximal side and a distal side; a proximal flap, including a base end on a proximal side and a free end on a distal side, on the proximal side of the tubular member; and a distal flap, including a base end on a distal side and a free end on a proximal side, on the distal side of the tubular member are arranged; where the tubular member includes a distal side first supporting member provided on a distal side of a midpoint between the base end and the free end of the distal flap or a proximal side first supporting member provided on a proximal side of a midpoint between the base end and the free end of the proximal flap.
    Type: Application
    Filed: June 7, 2018
    Publication date: June 3, 2021
    Applicant: KANEKA CORPORATION
    Inventor: Tomoharu KOISO
  • Publication number: 20210164130
    Abstract: An acrylic fiber for artificial hair may include an acrylic copolymer. The acrylic fiber has a fiber cross section including 2 to 4 T-shaped protrusions that extend radially from a central portion. Each of the T-shaped protrusions has an arc-shaped upper side that bulges in a direction away from the central portion. A circumradius of the fiber cross section is 40.0 to 60.0 ?m. A distance between adjacent end portions of the corresponding upper sides of the adjacent T-shaped protrusions is 3.0 to 60.0 ?m. An axial width is 10.0 ?m or more. Torsional rigidity of the acrylic fiber is 0.30 to 2.0 mg·cm2. The acrylic fiber for artificial hair has high volume, good texture, and good twist processability, and a hair ornament may include the acrylic fiber for artificial hair.
    Type: Application
    Filed: February 9, 2021
    Publication date: June 3, 2021
    Applicant: KANEKA CORPORATION
    Inventors: Megumi Yoshikawa, Takao Michinobu, Takeshi Tanaka
  • Patent number: 11024760
    Abstract: A crystalline silicon-based solar cell includes, in the following order, a crystalline silicon substrate having a first principal surface, a non-single-crystalline silicon-based thin-film, and a transparent electroconductive layer. The non-single-crystalline silicon-based thin-film and the transparent electroconductive layer are disposed on the first principal surface. The non-single-crystalline silicon-based thin-film comprises, in the following order from the first principal surface, an intrinsic silicon-based thin-film and a conductive silicon-based thin-film. The first principal surface has a plurality of pyramidal projections, each having a top portion, a middle portion, and a bottom portion. A thickness of the non-single-crystalline silicon-based thin-film disposed on the top portions is smaller than a thickness of the non-single-crystalline silicon-based thin-film disposed on the middle portions.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: June 1, 2021
    Assignee: KANEKA CORPORATION
    Inventor: Daisuke Adachi
  • Patent number: 11015033
    Abstract: Expandable styrene resin particles include 2.0 wt % to 8.0 wt % of graphite, and the graphite has a mean particle size of 2.5 ?m to 9 ?m. The expandable styrene resin particles satisfy (i) a laser scattering intensity per unit solution concentration of the graphite is not less than 5 {%/(mg/ml)}/wt %, (ii) an area of the graphite per unit solution concentration of the graphite in 1 mm2 is not less than 55 ({mm2/mm2}/{g/g}), or (iii) when the expandable styrene resin particles are pre-expanded and are made into an expanded molded product having an expansion ratio of 40 times, a value (%/wt %) obtained by dividing, by the content of the graphite (wt %), a percentage of an area occupied by the graphite in a surface layer of the expanded molded product (%), a quotient of which is further multiplied by 100, is not less than 100.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: May 25, 2021
    Assignee: KANEKA CORPORATION
    Inventors: Ryuta Kutsumizu, Shotaro Maruhashi, Ryoji Nakayama, Yoshihito Yano, Kirito Suzuki
  • Publication number: 20210151631
    Abstract: A transparent electrode-equipped substrate includes, on a film base material having a transparent film substrate, a non-crystalline transparent foundation oxide layer and a non-crystalline transparent conductive oxide layer. The transparent electrode-equipped substrate is capable of achieving low resistivity by having the transparent oxide layers being formed sequentially from the film base material side through sputtering such that the absolute value of a discharge voltage (VU) of a direct-current (DC) power supply when forming the transparent foundation oxide layer is 255-280 V, the ratio (VU/VC) between the discharge voltage (VU) of the DC power supply when forming the transparent foundation oxide layer and the discharge voltage VC of the DC power supply when forming the transparent conductive oxide layer is 0.86-0.98.
    Type: Application
    Filed: January 29, 2021
    Publication date: May 20, 2021
    Applicant: KANEKA CORPORATION
    Inventor: Takashi KUCHIYAMA
  • Publication number: 20210153346
    Abstract: A metal-clad laminate and techniques using the metal-clad laminate are provided where the metal-clad laminate has excellent adhesiveness between a substrate and metal foil in addition to good dielectric characteristics and heat resistance. The metal-clad laminate includes an insulating layer in contact with metal foil where the insulating layer further includes a resin composition and a fibrous base material. The resin composition contains a specific resin (A) and specific core-shell polymer particles (B), and a surface of the metal foil has a ten-point average roughness (Rz) of not more than 2.0 ?m.
    Type: Application
    Filed: January 29, 2021
    Publication date: May 20, 2021
    Applicant: KANEKA CORPORATION
    Inventor: Shusuke Yoshihara
  • Publication number: 20210151793
    Abstract: One or more embodiments of the present invention are to provide a method for producing a composite metal oxide having an excellent crystallinity by a mechanochemical method. One or more embodiments of the present invention relate to a method for producing a garnet-type composite metal oxide containing Li, La, Zr and O. The method includes a step of treating a mixture containing raw material powders and a flux by a mechanochemical method to react the raw material powders, and the raw material powders contain a Li source powder, a La source powder and a Zr source powder. The raw material powders may further contain at least one selected from an Al source powder and a Ga source powder.
    Type: Application
    Filed: February 1, 2021
    Publication date: May 20, 2021
    Applicants: KANEKA CORPORATION, OSAKA UNIVERSITY
    Inventors: Kazuaki Kanai, Shohei Kitano, Makio Naito
  • Publication number: 20210140071
    Abstract: An acrylic fiber for artificial hair includes an acrylic copolymer obtained by copolymerizing acrylonitrile, vinyl chloride and/or vinylidene chloride, and a sulfonic acid group-containing vinyl monomer; and an organic solvent that can dissolve the acrylic copolymer, where the organic solvent is present in an amount of 0.1 to 3% by mass with respect to the total mass of the acrylic fiber for artificial hair. The acrylic fiber for artificial hair has an average surface roughness of 5900 ?m2 or less in an area of 40 ?m long and 80 ?m wide of the side surface of the fiber.
    Type: Application
    Filed: January 20, 2021
    Publication date: May 13, 2021
    Applicant: KANEKA CORPORATION
    Inventors: Satoru Yoshimura, Masaru Anahara, Hiroki Shinomiya, Masanobu Tamura, Ryohei Noishiki, Aki Kano, Akihiro Okamoto
  • Patent number: 11000035
    Abstract: Disclosed herein is a soil-borne disease control method capable of simply suppressing a soil-borne pathogen. The method for controlling a soil-borne disease includes applying at least one polyhydroxyalkanoic acid having a structure represented by the following formula (1) to soil: [—CHR—CH2—CO—O—]??(1) (wherein R is an alkyl group represented by CnH2n+1 and n is an integer of 1 or more but 15 or less).
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: May 11, 2021
    Assignees: NATIONAL RESEARCH AND DEVELOPMENT AGENCY NATIONAL AGRICULTURE AND FOOD RESEARCH ORGANIZATION, KANEKA CORPORATION
    Inventors: Hitoshi Nakamura, Koichi Suzaki, Takahiko Sugaya, Shingo Kobayashi
  • Patent number: 11004995
    Abstract: A photovoltaic device according to the present disclosure is provided with: a condensing optical system having chromatic aberration; a first photoelectric converter, which is arranged on an optical axis of the condensing optical system; and a second photoelectric converter, which is arranged on an outer peripheral side of the first photoelectric converter when viewed from an optical axis direction of the condensing optical system, and which has a bandgap lower than a bandgap of the first photoelectric converter, wherein the first photoelectric converter is arranged on an inner side of a rectangle that circumscribes a condensing region of absorbable longest-wavelength light determined based on the bandgap.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: May 11, 2021
    Assignee: KANEKA CORPORATION
    Inventors: Kunihiro Nakano, Hisashi Uzu, Kenji Yamamoto
  • Publication number: 20210130640
    Abstract: The present invention relates to polyvinyl chloride aggregate particles, in which a particle diameter D50 at a cumulative volume percentage of 50 vol % in a volume particle size distribution is 0.5 ?m or more and 5.0 ?m or less, and a particle diameter D90 at a cumulative volume percentage of 90 vol % in the volume particle size distribution is 8.0 ?m or less, and a Na concentration in the polyvinyl chloride aggregate particles is 90 ppm or less. The present invention relates to a composition for a metal can coating material, a composition for a marking film and a method for producing the same, and a coating film that contain the polyvinyl chloride aggregate particles. This provides polyvinyl chloride aggregate particles capable of imparting high transparency and retort resistance to a coating film of a metal can, and/or capable of imparting high transparency and water resistance to a marking film.
    Type: Application
    Filed: February 12, 2019
    Publication date: May 6, 2021
    Applicant: KANEKA CORPORATION
    Inventors: Yoshitaka Nishiyama, Fumihiro Mitamura
  • Publication number: 20210135027
    Abstract: A solar cell includes a semiconductor substrate, a first conductive layer, a second conductive layer, a first electrode, a second electrode, and an island-shaped conductive layer. The first conductive layer and the second conductive layer are disposed on one principal surface of the semiconductor substrate. The first electrode is disposed on the first conductive layer and the second electrode is disposed on the second conductive layer. The first electrode and the second electrode are electrically separated, and the island-shaped conductive layer is disposed between the first electrode and the second electrode.
    Type: Application
    Filed: January 8, 2021
    Publication date: May 6, 2021
    Applicant: KANEKA CORPORATION
    Inventors: Katsunori Konishi, Kunihiro Nakano, Hayato Kawasaki, Kunta Yoshikawa
  • Patent number: 10998456
    Abstract: The solar cell includes a plurality of light-receiving-side finger electrodes on a light-receiving surface of a photoelectric conversion section having a semiconductor junction. The light-receiving surface of the photoelectric conversion section is covered with a first insulating layer. Each light-receiving-side finger electrodes include: a first metal seed layer provided between the photoelectric conversion section and the first insulating layer; and a first plating metal layer being conduction with the first metal seed layer through openings formed in the first insulating layer. The solar cell includes an isolated plating metal layer pieces contacting neither the light-receiving-side finger electrodes nor the back-side finger electrodes. On the surface of the first insulating layer, an isolated plating metal crowded region is present in a form of a band-shape extending parallel to an extending direction of the light-receiving-side finger electrodes.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: May 4, 2021
    Assignee: KANEKA CORPORATION
    Inventors: Kunta Yoshikawa, Daisuke Adachi, Toru Terashita, Masafumi Hiraishi
  • Patent number: 10988384
    Abstract: In order to attain an object to achieve a graphite sheet processed product which is made of high quality graphite and which has a smooth cut surface even after being subjected to a cut process, a graphite sheet processed product of the present invention has a thickness of not less than 10 nm and not more than 20 ?m, has a cross-sectional area 90% or more of which is occupied by graphite layers each extending continuously or discontinuously in a horizontal direction, the cross-sectional area being observed with use of a scanning electron microscope (SEM), includes therein graphite crystal having an average crystal grain size of not less than 0.35 ?m and not more than 25 ?m, and has, on a cut surface thereof, a burr having a size that is not more than 15% of a line width thereof, the line width being less than 400 ?m.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: April 27, 2021
    Assignee: KANEKA CORPORATION
    Inventors: Atsushi Tatami, Mutsuaki Murakami, Masamitsu Tachibana
  • Patent number: 10986834
    Abstract: A peptide-containing composition includes a peptide and an alkaline mineral carrier, wherein an amount of the alkaline mineral carrier is 8 parts by mass or more based on 100 parts by mass of the peptide. A method for cultivating a plant includes applying a peptide-containing composition to the plant, a method for improving stability of a peptide includes mixing an alkaline mineral carrier with the peptide, and a method for storing a peptide includes storing the peptide in coexistence with an alkaline mineral carrier.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: April 27, 2021
    Assignee: KANEKA CORPORATION
    Inventors: Toyoaki Watanabe, Takayuki Asada, Ken Uekita
  • Publication number: 20210120661
    Abstract: An object of the present invention is to realize a target, for neutron-beam or proton-beam irradiation, that can withstand prolonged beam irradiation. A target for proton-beam or neutron-beam, comprising a graphite film (A) having a thermal conductivity of 500 W/mK or more in a direction parallel to an a-b plane of a graphite layer at 25° C.; and a layer (B) of a starting material for producing a radioactive substance, and being a laminate of the graphite film (A) and the layer (B). A density of the graphite film (A) is preferably 1.8 to 2.26 g/cm3. A tensile strength of the graphite film (A) is preferably 5 MPa or more.
    Type: Application
    Filed: June 6, 2018
    Publication date: April 22, 2021
    Applicant: KANEKA CORPORATION
    Inventors: Atsushi Tatami, Masamitsu Tachibana, Mutsuaki Murakami
  • Publication number: 20210115192
    Abstract: A polyimide resin has an acid dianhydride-derived structure and a diamine-derived structure, the acid dianhydride contains an acid dianhydride represented by the general formula (1) and a fluorine-containing aromatic acid dianhydride, and the diamine contains a fluoroalkyl-substituted benzidine. In the general formula (1), n is an integer of 1 or more, and R1 to R4 are each independently a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, or a perfluoroalkyl group having 1 to 20 carbon atoms. The content of the acid dianhydride represented by the general formula (1) may be 10 to 65 mol %, and the content of the fluorine-containing aromatic acid dianhydride may be 30 to 80 mol %, based on 100 mol % of the total of the acid dianhydride.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 22, 2021
    Applicant: KANEKA CORPORATION
    Inventors: Takahiro Yasumoto, Dong Zhang, Hiroyuki Ushiro, Yasutaka Kondo, Kohei Ogawa, Masahiro Miyamoto
  • Publication number: 20210113845
    Abstract: A defibrillation system having a defibrillation catheter and a power supply part; a first connector member (11) is connected to a handle member; a second connector member (21) is connected to the power supply part; the first connector member (11) has a first insulating member (12), first electrodes (13) protruding from the first insulating member (12), and a first tubular member (14); the second connector member (21) has a second insulating member (22) having longitudinal holes, second electrodes (23) disposed on an inner wall of the longitudinal holes, and a second tubular member (24); the first tubular member (11) has a first space (15) being to contain the second tubular member (24), a second space (16) not containing the first insulating member (12) but containing the first electrodes (13), and a third space (17) containing neither the first insulating member (12) nor the first electrodes (13).
    Type: Application
    Filed: January 29, 2019
    Publication date: April 22, 2021
    Applicant: KANEKA CORPORATION
    Inventors: Shinichiro SAKAMOTO, Daichi KAMIYAMA, Naotake MAEKUBO
  • Publication number: 20210114967
    Abstract: A resist composition for pattern printing contains a binder, a filler, a thickener, and a polyfunctional (meth)acrylate. The resist composition does not contain a photoinitiator. The resist composition also contains photocatalytic titanium oxide. A method for forming a pattern includes a resist composition that is pattern-wise printed, and then the resist composition is irradiated with an actinic radiation such that seepage of the resist component from an end of the pattern during the pattern formation using the resist composition is suppressed and the seepage portion is decomposed. As a result, it is possible to drastically reduce the seepage without impairing the rheology of the resist composition and additionally, to remove a slightly seeping portion without requiring, for example, a harmful ozone treatment or the like.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 22, 2021
    Applicant: KANEKA CORPORATION
    Inventors: Hitoshi TAMAI, Masanori KANEMATSU, Shimpei OKAMOTO