Patents Assigned to Kaneka Corporation
  • Patent number: 12319849
    Abstract: It is an object of the present invention to achieve an adhesive composition which enables provision of a cured product having excellent mechanical properties. In order to attain the foregoing object, an adhesive composition in accordance with an embodiment of the present invention contains: a polyoxypropylene-based polymer (A) which has, the terminal thereof, not less than 0.6 (meth)acryloyl groups on average and which has a number average molecular weight of not less than 5,000; a methacrylate compound (B) having a glass transition temperature of higher than 60° C. in a state of a homopolymer; an organic peroxide (C); and a reducing agent (D).
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: June 3, 2025
    Assignee: Kaneka Corporation
    Inventor: Hidenori Tanaka
  • Patent number: 12234323
    Abstract: The present invention relates to a transparent polyimide film containing a polyimide and a phosphate ester. The content of the phosphate ester based on 100 parts by mass of the polyimide is 3 parts by mass or more, preferably 5 to 100 parts by mass. It is preferable to use a phosphate ester that has a high birefringence reduction effect and with which a decrease in the tensile modulus of the film is small. In production of the polyimide film, it is preferable to employ a method in which: a solvent-soluble polyimide resin and a phosphate ester are dissolved in an organic solvent exhibiting solubility with respect to the polyimide resin to prepare a polyimide solution; the polyimide solution is applied onto a substrate; and the organic solvent is removed.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: February 25, 2025
    Assignee: Kaneka Corporation
    Inventors: Takashi Ando, Kohei Ogawa, Masahiro Miyamoto
  • Patent number: 12102151
    Abstract: The present invention relates to a fiber for artificial hair having a hollow in a center of a fiber cross section. A ratio of an area of the hollow to an entire area of the fiber cross section is 5% to 50%. The fiber cross section has a flat multilobed shape, and the hollow has a first side and a second side that are inclined 70 to 110 degrees relative to a major axis of the fiber cross section. The present invention also relates to hair ornament products including the above fiber for artificial hair. Thus, the present invention provides a fiber for artificial hair having a favorable curl setting property when curling with a hair iron and a favorable combing property after curling with a hair iron, and hair ornament products including the same.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: October 1, 2024
    Assignee: Kaneka Corporation
    Inventors: Mika Yorizane, Hiroshi Fujinaga, Kohei Kawamura, Tomomichi Hashimoto
  • Patent number: 11591605
    Abstract: A method for editing a plant genome includes coating a microparticle with at least one type of nucleic acid and/or at least one type of protein, introducing a deletion, insertion, or substitution into a target site in the genome of a plant by bombarding a shoot apex of the plant with the coated microparticle using a gene gun, growing the shoot apex bombarded with the coated microparticle to obtain a plant body, and selecting a genome-edited plant body from the plant body. The shoot apex of the plant is selected from the group consisting of a shoot apex of an embryo of a fully mature seed, a shoot apex of a young bud of a tuber, and a shoot apex of a terminal bud or a lateral bud.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: February 28, 2023
    Assignee: Kaneka Corporation
    Inventors: Haruyasu Hamada, Yozo Nagira, Ryuji Miki, Naoaki Taoka, Ryozo Imai
  • Publication number: 20220411584
    Abstract: The present invention relates to a transparent polyimide film containing a polyimide and a phosphate ester. The content of the phosphate ester based on 100 parts by mass of the polyimide is 3 parts by mass or more, preferably 5 to 100 parts by mass. It is preferable to use a phosphate ester that has a high birefringence reduction effect and with which a decrease in the tensile modulus of the film is small. In production of the polyimide film, it is preferable to employ a method in which: a solvent-soluble polyimide resin and a phosphate ester are dissolved in an organic solvent exhibiting solubility with respect to the polyimide resin to prepare a polyimide solution; the polyimide solution is applied onto a substrate; and the organic solvent is removed.
    Type: Application
    Filed: June 22, 2020
    Publication date: December 29, 2022
    Applicant: Kaneka Corporation
    Inventors: Takashi Ando, Kohei Ogawa, Masahiro Miyamoto
  • Patent number: 11447655
    Abstract: Hybrid organic/inorganic coating compositions of nanometer thickness are described, where the organic layer is a clay-containing layer comprising a clay and a hydrophilic polymer and the inorganic layer is a metal-containing layer comprising a metal with a refractive index greater than 1.5, where the coating compositions allow for the generation and tenability of iridescent color through control of the coat thickness.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: September 20, 2022
    Assignees: Kaneka Corporation, The University of Connecticut
    Inventors: Luyi Sun, Jingjing Liu, Songshan Zheng, Thomas D'Auria, Young Hoon Lim, Tianlei Zhou, Masaya Kotaki
  • Patent number: 10815390
    Abstract: An imide resin composition including a terminal-modified imide oligomer of General Formula (1) and a thermoplastic aromatic polyimide of General Formula (2). (In Formula (1), either R1 or R2 shows a phenyl group and the other shows a hydrogen atom; R3 and R4 show a divalent residue of aromatic diamine; R5 and R6 show a tetravalent residue of aromatic tetracarboxylic acid; m and n satisfy relationships of m?1, n?0, 1?m+n?20, and 0.05?m/(m+n)?1; and an arrangement of repeating units may be either a block or random.) (In Formula (2), R1 and R2 show a divalent residue of aromatic diamine; R3 shows a tetravalent residue of aromatic tetracarboxylic acid; m and n satisfy relationships of m?1 and n?0, and an arrangement of repeating units may be either a block or random.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: October 27, 2020
    Assignees: Kaneka Corporation, Japan Aerospace Exploration Agency
    Inventors: Masahiko Miyauchi, Yuichi Ishida, Toshio Ogasawara, Rikio Yokota
  • Publication number: 20200048097
    Abstract: A method of producing a graphite film has an excellent appearance and excellent thermal diffusivity. A graphite film production method includes the steps of: preparing a polyimide film having a heating loss rate X of 0.13% to 10%, which heating loss rate X is represented by: heating loss rate X=(b?a)/a . . . Formula (1); and graphitizing the polyimide film by subjecting the polyimide film to a heat treatment. Where (i) a represents a mass of the polyimide film after the polyimide film is heated at 400° C. for 15 minutes and (ii) b represents a mass of the polyimide film after the polyimide film is heated at 150° C. for 15 minutes.
    Type: Application
    Filed: October 12, 2017
    Publication date: February 13, 2020
    Applicant: KANEKA Corporation
    Inventors: Motoaki KOBAYASHI, Masahiro KOJIMA, Yasushi NISHIKAWA
  • Publication number: 20200040180
    Abstract: Provided is a polycarbonate resin composition containing a polycarbonate resin whose flowability during molding of the polycarbonate resin is enhanced, without loss of properties such as transparency, mechanical strength, and heat resistance, by adding, to the polycarbonate resin, a polycarbonate oligomer and a flowability enhancing agent which is obtained through polycondensation of a monomer mixture containing a bisphenol component and a dicarboxylic acid and, optionally, biphenol component. Further provided is a molded article obtained from the polycarbonate resin composition.
    Type: Application
    Filed: April 5, 2017
    Publication date: February 6, 2020
    Applicant: KANEKA Corporation
    Inventors: Keika HATTORI, Shusuke YOSHIHARA
  • Patent number: 10538791
    Abstract: Provided are a method for enhancing the production quantity of poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (P(3HB-co-3HH)) having a high fraction of 3-hydroxyhexanoate (3HH) using a saccharide or glycerol as a starting material; a method for producing a P(3HB-co-3HH) copolymer including performing transformation by homologous recombination of a crotonyl-CoA reductase gene in a chromosome of a recombinant strain of Cupriavidus necator endowed with the ability to produce P(3HB-co-3HH), or performing transformation by introducing an autonomous replication vector in which the crotonyl-CoA reductase gene is incorporated in the aforementioned strain, and cultivating the transformant in a medium containing a saccharide or glycerol as a carbon source; and a method for enhancing the production quantity of the copolymer and/or the fraction of 3HHx in the copolymer.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: January 21, 2020
    Assignees: Tokyo Institute of Technology, Kaneka Corporation
    Inventors: Toshiaki Fukui, Izumi Orita
  • Patent number: 10487239
    Abstract: An insulating coating material is provided herein. In some embodiments, the insulating coating material comprises an insulating film comprising a polyimide resin, wherein the insulating film, when measuring a tensile elasticity in accordance with ASTM D882, having a stress at 5% strain of 180 MPa or greater and a stress at 15% strain of 225 MPa or greater, wherein the stress at 15% strain is greater than the stress at 5% strain.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: November 26, 2019
    Assignee: Kaneka Corporation
    Inventors: Yasutaka Kondo, Makoto Tawada, Kazuhiro Ono
  • Patent number: 10373732
    Abstract: A transparent electrode film includes a transparent electrode disposed on a transparent film base, wherein the transparent electrode contains a transparent conductive layer and a conductive metal pattern layer. The conductive metal pattern layer is patterned in the in-plane direction of the transparent film base. The transparent conductive layer and a protecting layer are disposed in a region where the conductive metal pattern layer is provided, and the conductive metal pattern layer is disposed closer to the transparent film base than the transparent conductive layer and the protecting layer. The protecting layer includes at least one selected from the group consisting of a precious metal and a metal oxide. The transparent electroconductive layer is also disposed at opening sections where the electroconductive metal pattern layer is absent.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: August 6, 2019
    Assignee: Kaneka Corporation
    Inventors: Shimpei Okamoto, Junichi Nakamura, Yuji Takahashi, Takahisa Fujimoto, Takayoshi Kushizaki, Hitoshi Tamai
  • Patent number: 10353497
    Abstract: The present invention provides a substrate with conductive layers, capable of improving both glare preventing properties and etching characteristics; a method for fabricating the same; and a substrate with touch-panel transparent electrodes. A substrate with conductive layers has, on at least one side of a transparent film substrate, a thin film underlayer, a metal oxide layer, and a first metal layer formed in this order. The thin film underlayer comprises nickel and copper or nickel oxide and copper oxide, the metal oxide layer comprises nickel oxide and copper oxide, and the first metal layer comprises of at least one of gold, silver, and copper. The substrate preferably satisfies the following relational expressions: [1] the thickness of the thin film underlayer is 20 nm or less; [2] the thickness of the metal oxide layer is 80 nm or less; and [3] the thickness of the thin film underlayer is equal to or less than the thickness of the metal oxide layer.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: July 16, 2019
    Assignee: Kaneka Corporation
    Inventors: Takahisa Fujimoto, Hitoshi Tamai, Kenji Yamamoto
  • Patent number: 10356946
    Abstract: The present invention provides a heat dissipation structure that does not cause problems such as contact failures in electronic components and that is applicable to electronic components with high heat densities. The present invention also provides a method for easily repairing an electronic device. The heat dissipation structure is obtained by filling and curing a thermally conductive curable resin composition in an electromagnetic shielding case on a substrate on which an electronic component with a heat density of 0.2 W/cm2 to 500 W/cm2 is mounted, the thermally conductive curable resin composition containing a curable liquid resin (I) and a thermally conductive filler (II), having a viscosity at 23° C. of 30 Pa·s to 3000 Pa·s and a thermal conductivity of 0.5 W/(m·K) or more, and being curable by moisture or heat.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: July 16, 2019
    Assignee: Kaneka Corporation
    Inventors: Keisuke Oguma, Aki Koukami, Kazuo Hagiwara
  • Publication number: 20190131915
    Abstract: A solar cell module mounting system for fixing a plurality of solar cell modules to a side wall of a building, the plurality of solar cell modules include a plurality of first solar cell modules. Each of the plurality of first solar cell modules includes a first side and a second side, the first side being proximal to the side wall of the building, the second side being distally positioned and lower than the first side and/or at a position outwardly away from the side wall part of the building. The plurality of the first solar cell modules are arranged vertically, and a relationship of 16??1?(32/11)?56 is satisfied for adjacent vertically arranged first solar cell modules.
    Type: Application
    Filed: April 26, 2018
    Publication date: May 2, 2019
    Applicant: Kaneka Corporation
    Inventor: Naoki Kadota
  • Publication number: 20190122780
    Abstract: Provided is a target that is sufficiently durable and sufficiently heat-resistant for use as a target for an accelerator and that can reduce the extent of radioactivation. A target (A) of the present invention includes: a metal film (3); and a substrate constituted by a graphite film (4). The graphite film (4) has a thermal conductivity in a surface direction of 1600 W/(m·K) or greater, the thermal conductivity in the surface direction of the graphite film (4) is equal to or greater than 100 times a thermal conductivity in a thickness direction of the graphite film (4), and the graphite film (4) has a thickness of 1 ?m or greater and 100 ?m or less.
    Type: Application
    Filed: April 20, 2017
    Publication date: April 25, 2019
    Applicant: Kaneka Corporation
    Inventors: Mutsuaki MURAKAMI, Atsushi TATAMI, Masamitsu TACHIBANA
  • Patent number: D902143
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: November 17, 2020
    Assignee: Kaneka Corporation
    Inventor: Masanori Fukuda
  • Patent number: D902144
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: November 17, 2020
    Assignee: Kaneka Corporation
    Inventor: Masanori Fukuda
  • Patent number: D1069244
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: April 1, 2025
    Assignee: Kaneka Corporation
    Inventor: Yu Nakamura
  • Patent number: D1069245
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: April 1, 2025
    Assignee: Kaneka Corporation
    Inventor: Yu Nakamura