Patents Assigned to Toyo Ink SC Holding Co., Ltd.
  • Publication number: 20230002630
    Abstract: By use of an ultraviolet curable inkjet ink comprising a colorant, a polymerizable monomer having a specific structure, ethoxyphenyl(2,4,6-trimethylbenzoyl)phosphine oxide, and at least one type selected from the group consisting of an acylphosphine oxide photopolymerization initiator different than the ethoxyphenyl(2,4,6-trimethylbenzoyl)phosphine oxide, a benzophenone photopolymerization initiator, and an indane photopolymerization initiator, wherein the ratio of the content of the polymerizable monomer having the specific structure and the content of the ethoxyphenyl(2,4,6-trimethylbenzoyl)phosphine oxide is 2:1 to 8.5:1 by mass ratio, the content of a monofunctional monomer in the ultraviolet curable inkjet ink is 25% by mass or less, a printed matter having curability and coating film flexibility can be obtained regardless of the amount applied to a recording medium, and the discharge stability is also excellent.
    Type: Application
    Filed: August 11, 2021
    Publication date: January 5, 2023
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD
    Inventors: Yohei KONDA, Gosuke KIKUTSUJI
  • Patent number: 11541677
    Abstract: An ink set including an inkjet ink, and a treatment liquid used in combination with the inkjet ink, wherein the inkjet ink includes a pigment, a water-soluble organic solvent, a surfactant and water, the treatment liquid includes a coagulant, an organic solvent and water, the coagulant includes calcium nitrate in an amount of 21.5 to 41.7% by mass relative to the total mass of the treatment liquid, an amount of organic solvent having a boiling point at one atmosphere of 240° C. or higher in the treatment liquid is not more than 8% by mass, a pH of the treatment liquid is within a range from 3.5 to 10.5, and a viscosity of the treatment liquid at 25° C. is within a range from 5.5 to 18.5 mPa·s.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: January 3, 2023
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD
    Inventors: Mayuko Hayamizu, Atsushi Yoda, Kazuhiro Jonai
  • Patent number: 11533833
    Abstract: An electromagnetic wave shielding sheet according to the disclosure is configured by a protection layer, a metal layer, and a conductive adhesive layer. The metal layer has a plurality of openings, and an aperture ratio of the opening is 0.1%-20%. In addition, a tensile breaking strength of the electromagnetic wave shielding sheet is 10 N/20 mm-80 N/20 mm.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: December 20, 2022
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Daisuke Kishi, Shota Mori, Takahiro Matsuzawa, Tsutomu Hayasaka
  • Patent number: 11512216
    Abstract: A pretreatment liquid that is used together with an aqueous inkjet ink containing a pigment and water, wherein the pretreatment liquid contains resin microparticles (A), a surfactant (B), a coagulant (C) and water, the surfactant (B) contains a polyoxyalkylene alkyl ether (b-1), and the coagulant (C) contains a polyvalent metal salt and/or a cationic polymer compound and has a water absorptivity at a temperature of 40° C. and a relative humidity of 80% of 75% by mass or less.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: November 29, 2022
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Masahiro Sugihara, Yuki Sasaki, Toshihiro Tetsuka, Takaaki Koike, Akiko Imazato, Naoya Kikuta, Tomoe Tanabe
  • Patent number: 11512204
    Abstract: A squarylium dye [A] that has high invisibility, i.e., exhibits low absorption in the visible light region (400 nm to 750 nm), has excellent near-infrared absorption capability and high light resistance, tends not to exhibit aggregations, and has specific X-ray diffraction peaks; and an image-forming material and the like containing the squarylium dye [A] having said characteristics. The problem is solved by a squarylium dye [A] having specific X-ray diffraction peaks represented by general formula (1). Moreover, the problem is also solved by various materials containing the squarylium dye [A].
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: November 29, 2022
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYO VISUAL SOLUTIONS CO., LTD.
    Inventors: Shohei Sakamoto, Hiroaki Shimizu, Sumihiro Aikyo
  • Publication number: 20220372319
    Abstract: By the use of an ultraviolet curable inkjet ink set for a line head printer comprising a lower layer ink containing a polymerizable monomer having a specific structure, and, a specific photopolymerization initiator, and an upper layer ink containing a polymerizable monomer having a specific structure and a specific photopolymerization initiator, wherein among the lower layer ink and the upper layer ink, one of the inks is a white ink and the other ink is a black ink, a good printed matter having excellent adhesion between a recording medium and the ink layer, and, between different ink layers can be obtained without generating curing wrinkles and curling over time even during high speed printing.
    Type: Application
    Filed: August 11, 2021
    Publication date: November 24, 2022
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Gosuke KIKUTSUJI, Yohei KONDA
  • Publication number: 20220376262
    Abstract: A carbon nanotube dispersion liquid for nonaqueous electrolyte secondary battery is a carbon nanotube dispersion liquid containing carbon nanotubes, a dispersant and a solvent, and is characterized in satisfying (1) to (3) below: (1) the average outer diameter of the carbon nanotubes ranging from more than 3 nm to 25 nm; (2) the BET surface area of the carbon nanotubes ranging from 150 m2/g to 800 m2/g; and (3) the fiber length of the carbon nanotubes in the carbon nanotube dispersion liquid ranging from 0.8 ?m to 3.5 ?m.
    Type: Application
    Filed: October 23, 2020
    Publication date: November 24, 2022
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Yu MORITA, Hirotomo ITO, Yu AOTANI, Tetsuro IZUMIYA
  • Publication number: 20220340765
    Abstract: An aqueous white conductive primer coating composition, includes: a binder component (A); and a carbon nanotube dispersion liquid (B); and a coating film formed by the aqueous white conductive primer coating composition has an L* value of whiteness based on a CIE color-matching function of 80 or more and a surface resistivity of 108 ?/? or less.
    Type: Application
    Filed: September 16, 2020
    Publication date: October 27, 2022
    Applicants: KANSAI PAINT CO., LTD., TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Takumu HONDA, Takayuki ONO, Hironori TONOMURA, Nobuyuki NAHATA
  • Publication number: 20220325120
    Abstract: An ink set for single-pass printing including at least a cyan ink, a magenta ink, a yellow ink, and a gray ink, wherein the magenta ink satisfies a specific condition regarding spectral reflectance, and the gray ink has a spectral reflectance at a wavelength of 500 nm of 20 to 70% and satisfies the specific condition regarding spectral reflectance.
    Type: Application
    Filed: June 3, 2020
    Publication date: October 13, 2022
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Yuji KAMEYAMA, Gosuke KIKUTSUJI
  • Patent number: 11469421
    Abstract: A conductive material dispersion containing a conductive material containing carbon fibers, a dispersant, and an amide-based organic solvent, in which the dispersant contains a copolymer A containing a nitrile group-containing structural unit and satisfies following conditions. (I) A pH of the conductive material dispersion is 9.0 or greater. (II) A phase angle of the conductive material dispersion at a frequency of 1 Hz obtained by dynamic viscoelasticity measurement is 19° or greater, and a complex elastic modulus of the conductive material dispersion obtained by dynamic viscoelasticity measurement is less than 20 Pa.
    Type: Grant
    Filed: February 21, 2022
    Date of Patent: October 11, 2022
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventor: Honami Hirabayashi
  • Patent number: 11453792
    Abstract: The invention provides a magenta ink for inkjet which yields distinct images having high gloss and no density irregularities or voids upon inkjet printing onto low-absorption substrates, exhibits excellent discharge stability after long standby periods, and can provide excellent drying properties even during high-speed printing; and also provides an ink set that can suppress mixed color bleeding and achieve superior color reproducibility.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: September 27, 2022
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD
    Inventors: Masahiro Sugihara, Atsushi Yoda, Yoshihito Suzuki, Kazuhiro Jonai
  • Patent number: 11453797
    Abstract: An ink set containing an inkjet ink and a treatment liquid, wherein the inkjet ink contains a pigment, a water-soluble organic solvent, a surfactant and water, the water-soluble organic solvent contains an alkyl diol (A) of 2 to 8 carbon atoms, the weighted average boiling point of the water-soluble organic solvent at one atmosphere is from 175 to 240° C., the surfactant contains an acetylenediol-based surfactant, the treatment liquid contains a coagulant, calcium nitrate is included as the coagulant in an amount of 6.8 to 20.8% by mass relative to the total mass of the treatment liquid, and the pH of the treatment liquid is from 2 to 11.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: September 27, 2022
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD
    Inventors: Mayuko Okamoto, Kazuhiro Jonai, Atsushi Yoda, Norio Suzuki
  • Patent number: 11434396
    Abstract: The invention provides a synthetic rubber pressure-sensitive adhesive which has excellent heat resistance and substrate adhesiveness, is capable of inhibiting offset, peeling or the like even in a high-temperature environment and is suitable for applications in a high-temperature environment, a pressure-sensitive adhesive sheet and a polishing member laminate. The synthetic rubber pressure-sensitive adhesive of the invention contains: a synthetic rubber (A) including a styrene-isoprene block copolymer, an adhesion-imparting resin (B), and a fatty acid ester (C) with a weight reduction rate of 1 wt % or less after being heated at 150° C. for 10 minutes. Based on 100 parts by weight of the synthetic rubber (A), the content of the adhesion-imparting resin (B) is set as ? parts by weight to 60 parts by weight, and the content of the fatty acid ester (C) is set as 0.1 parts by weight to 10 parts by weight.
    Type: Grant
    Filed: May 28, 2018
    Date of Patent: September 6, 2022
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventor: Tadashi Abe
  • Patent number: 11427723
    Abstract: One embodiment relates to an aqueous inkjet ink containing a pigment (A), a polymer compound (B), a water-soluble organic solvent (C) and a surfactant (D), wherein the water-soluble organic solvent (C) includes ethylene glycol and/or 1,3-propanediol (c1), and a water-soluble organic solvent (c2) having a specific static surface tension, the acid value of the polymer compound (B), the amount of water-soluble organic solvent having a boiling point at 1 atmosphere of 240° C. or higher, and the weight average boiling point at 1 atmosphere for the water-soluble organic solvent (C) are all prescribed values, and the blend amounts of the various components satisfy specific relationships.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: August 30, 2022
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Yoshihito Suzuki, Atsushi Yoda, Masahiro Sugihara, Kazuhiro Jonai
  • Publication number: 20220267625
    Abstract: A rosin-modified phenol resin (A) is a reaction product of a rosin (b), a phenol (c), a formaldehyde (d) and a polyol (e), wherein the rosin (b) contains 0.1 to 3.5% by mass of a monoterpene (a1) and a sesquiterpene (a2) relative to the total weight of the rosin, and Mw/Mn which is the ratio of the weight average molecular weight (Mw) and the number average molecular weight (Mn) is 10 to 60.
    Type: Application
    Filed: May 18, 2021
    Publication date: August 25, 2022
    Applicant: TOYO INK SC HOLDINGS CO., LTD.
    Inventor: Kazuya OKAMOTO
  • Patent number: 11414518
    Abstract: A rosin-modified resin having a structural unit (ab) derived from a compound obtained by addition of an ?,?-unsaturated carboxylic acid or acid anhydride thereof (B) to a conjugated rosin acid (A), a structural unit (c) derived from an organic monobasic acid (C) excluding the conjugated rosin acid (A), a structural unit (d) derived from an aliphatic polybasic acid anhydride (D), and a structural unit (e) derived from a polyol (E), wherein the weight ratio between the structural unit (ab) and the structural unit (c) is within a range from 100:80 to 100:350.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: August 16, 2022
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYO INK CO., LTD.
    Inventors: Akeha Fukushima, Mitsuhito Takamura, Junya Suenaga
  • Patent number: 11407201
    Abstract: A composite member (1) satisfies the following expressions. X/(E×|CTE(B)?CTE(A)|)?50, X/(E×|CTE(B)?CTE(C)|)?50, Y/|CTE(B)?CTE(A)|×L(BA)?50, and Y/|CTE(B)?CTE(C)|×L(BC)?50. X: shear bond strength (MPa) between the heat dissipating base substrate and heat generating member, Y: fracture elongation of the thermoconductive insulating adhesive film, E: modulus of elasticity (MPa) of the thermoconductive insulating adhesive film, CTE(A): linear expansion coefficient (° C.?1) of the heat dissipating base substrate, CTE(B): linear expansion coefficient (° C.?1) of the thermoconductive insulating adhesive film, CTE(C): linear expansion coefficient (° C.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: August 9, 2022
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Toshiichi Sawaguchi, Naohiro Tanaka, Kaori Sakaguchi, Kenji Andou, Hidenobu Kobayashi
  • Publication number: 20220213324
    Abstract: A coloring composition which contains an isoindoline compound represented by formula (1) (wherein A represents a group that is expressed by formula (2), formula (3) or formula (4)) and a dispersion medium.
    Type: Application
    Filed: April 20, 2020
    Publication date: July 7, 2022
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Takeshi MATSUMOTO, Takayoshi KONO, Kouhei TAKIJIRI, Teppei INAI, Kazufumi NISHIDA
  • Publication number: 20220204857
    Abstract: The present invention addresses the problem of providing: a dispersant which enables the production of a dispersed material having excellent dispersibility and storage stability even when the dispersant is used in a small amount; a dispersed material having excellent dispersibility and storage stability; an electrode film having excellent adhesiveness and electrical conductivity; and a non-aqueous electrolyte secondary battery having excellent rate properties and cycle properties. The problem can be solved by a dispersant which is a polymer containing 40 to 100% by mass of a (meth)acrylonitrile-derived unit and having a weight average molecular weight of 5,000 to 400,000.
    Type: Application
    Filed: March 27, 2020
    Publication date: June 30, 2022
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Yuta SUZUKI, Yu AOTANI, Yu MORITA, Honami HIRABAYASHI, Tomohiko HOSHINO
  • Publication number: 20220195223
    Abstract: An aqueous inkjet ink containing a pigment, a binder resin, a water-soluble organic solvent, a surfactant and water, wherein the binder resin contains, as structural units, an aqueous resin containing a structure derived from an ethylenically unsaturated monomer containing an acid group and a structure derived from an ethylenically unsaturated monomer containing a hydroxyl group, the resin has a weight average molecular weight of 5,000 to 45,000, and a glass transition temperature of 35 to 110° C., the water-soluble organic solvent contains a first water-soluble organic solvent having an SP value of 8.5 to 13 (cal/cm3)1/2, and does not contain a second water-soluble organic solvent having a boiling point at 1 atmosphere of 235° C. or higher, and the surfactant contains an acetylene-based surfactant.
    Type: Application
    Filed: April 21, 2020
    Publication date: June 23, 2022
    Applicants: TOYO INK SC HOLDINGS CO., LTD, TOYOCOLOR CO., LTD.
    Inventors: Kazushi SUNAOSHI, Masahiro SUGIHARA, Yuki SASAKI