Patents by Inventor Ryota MIYASA

Ryota MIYASA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240140104
    Abstract: An ink jet printing method includes an ejection step of ejecting an ink jet ink composition containing a sublimation dye from a recording head so as to be adhered to an intermediate transfer medium A; and a transfer step of transferring the sublimation dye adhered to the intermediate transfer medium A by sublimation to a cloth B. In the ink jet printing method described above, an affinity parameter Ln (gamma) at 25° C. calculated by a COSMO-RS method between the sublimation dye and a member of a surface of the cloth B to which the sublimation transfer is performed is 5 or less.
    Type: Application
    Filed: October 26, 2023
    Publication date: May 2, 2024
    Inventors: Ryota MIYASA, Takayoshi KAGATA, Toshiaki OGUCHI, Hiromu MIYAZAWA
  • Patent number: 11898043
    Abstract: An ink jet ink composition set includes a white ink jet ink composition and a nonwhite ink jet ink composition. The white ink jet ink composition contains a white pigment, resin particles, and water, and the nonwhite ink jet ink composition contains a nonwhite pigment, resin particles, and water. The white pigment has cation responsiveness, and the absolute value of zeta potential of the white pigment is lower than the absolute value of zeta potential of the nonwhite pigment.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: February 13, 2024
    Inventors: Kazuto Aoki, Ryota Miyasa, Hideki Okada, Masakazu Ohashi
  • Publication number: 20230257589
    Abstract: A dye printing treatment liquid composition is used to be adhered to a cloth and includes a polyester resin and water, the polyester resin includes a structural unit derived from an aromatic compound and a structural unit derived from a non-aromatic compound, the aromatic compound includes a phthalic acid, the non-aromatic compound includes a (poly)alkylene glycol, a content of a structural unit derived from the phthalic acid with respect to 100 percent by mole of the polyester resin is 15 to 85 percent by mole, and a content of a structural unit derived from the (poly)alkylene glycol with respect to 100 percent by mole of the polyester resin is 15 to 85 percent by mole.
    Type: Application
    Filed: February 15, 2023
    Publication date: August 17, 2023
    Inventors: Takayoshi KAGATA, Ryota MIYASA, Toshiaki OGUCHI
  • Patent number: 11529809
    Abstract: An ink jet printing recording apparatus includes a belt which supports a recording medium; a heating portion which heats the belt; and an ink jet recording head which ejects an ink jet ink composition, the belt is provided with an adhesive layer, the ink jet ink composition contains a heat cross-linking component, and the belt is heated by the heating portion to a temperature lower than a reaction temperature of the heat cross-linking component.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: December 20, 2022
    Inventors: Satoshi Tsubamoto, Kosuke Chidate, Minoru Yamada, Ryota Miyasa, Tasuku Nakamura
  • Publication number: 20220325119
    Abstract: A white ink jet ink composition according to the present disclosure includes hollow resin particles, resin particles, and water. The hollow resin particles have a glass transition temperature of 120° C. or more, the resin particles are composed of an acrylic resin or a urethane resin, and the content of the resin particles is 5% by mass or more relative to the total mass of the ink composition.
    Type: Application
    Filed: March 29, 2022
    Publication date: October 13, 2022
    Inventors: Ryota MIYASA, Kazuto AOKI
  • Publication number: 20220315781
    Abstract: A white ink jet ink composition including hollow resin particles, resin particles, and water, in which a glass transition temperature of the hollow resin particles is 120° C. or higher, and a glass transition temperature of the resin particles is 5° C. or lower.
    Type: Application
    Filed: March 28, 2022
    Publication date: October 6, 2022
    Inventors: Kazuto AOKI, Ryota MIYASA
  • Patent number: 11407244
    Abstract: An ink jet recording method according to the present disclosure is a method for recording on a textile including ejecting a white ink composition for ink jet textile printing containing a white pigment and water with an ink jet recording apparatus, wherein the white ink composition is ejected as 9 ng or less of droplets from a nozzle, and the droplets are ejected and recorded on the textile such that a droplet ejected later has a higher flight speed than a droplet ejected earlier and the droplets coalesce before landing on the textile.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: August 9, 2022
    Inventors: Ryota Miyasa, Hideki Okada
  • Publication number: 20220064465
    Abstract: An ink jet ink composition set includes a white ink jet ink composition and a nonwhite ink jet ink composition. The white ink jet ink composition contains a white pigment, resin particles, and water, and the nonwhite ink jet ink composition contains a nonwhite pigment, resin particles, and water. The white pigment has cation responsiveness, and the absolute value of zeta potential of the white pigment is lower than the absolute value of zeta potential of the nonwhite pigment.
    Type: Application
    Filed: August 30, 2021
    Publication date: March 3, 2022
    Inventors: Kazuto AOKI, Ryota MIYASA, Hideki OKADA, Masakazu OHASHI
  • Patent number: 11130359
    Abstract: A liquid discharge apparatus of the present disclosure includes an ink composition and a liquid discharge section including a nozzle for discharging the ink composition. The ink composition is a pigment textile printing ink composition containing resin particles, water, and an organic solvent. The resin particles have a glass transition temperature of 5° C. or less and are contained in an amount of 6.5 mass % or more based on the total amount of the ink composition. The ink composition contains a polyhydric alcohol having a boiling point of 270° C. or more as the organic solvent in an amount of 15.0 mass % or less based on the total amount of the ink composition. The liquid discharge section includes a pressure chamber and a circulation passage for circulating the ink composition in the pressure chamber.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: September 28, 2021
    Inventors: Ryota Miyasa, Hideki Okada, Masakazu Ohashi
  • Publication number: 20210283908
    Abstract: An ink jet printing recording apparatus includes a belt which supports a recording medium; a heating portion which heats the belt; and an ink jet recording head which ejects an ink jet ink composition, the belt is provided with an adhesive layer, the ink jet ink composition contains a heat cross-linking component, and the belt is heated by the heating portion to a temperature lower than a reaction temperature of the heat cross-linking component.
    Type: Application
    Filed: March 9, 2021
    Publication date: September 16, 2021
    Inventors: Satoshi TSUBAMOTO, Kosuke CHIDATE, Minoru YAMADA, Ryota MIYASA, Tasuku NAKAMURA
  • Publication number: 20210129568
    Abstract: An ink jet recording method according to the present disclosure is a method for recording on a textile including ejecting a white ink composition for ink jet textile printing containing a white pigment and water with an ink jet recording apparatus, wherein the white ink composition is ejected as 9 ng or less of droplets from a nozzle, and the droplets are ejected and recorded on the textile such that a droplet ejected later has a higher flight speed than a droplet ejected earlier and the droplets coalesce before landing on the textile.
    Type: Application
    Filed: October 29, 2020
    Publication date: May 6, 2021
    Inventors: Ryota MIYASA, Hideki OKADA
  • Publication number: 20200207136
    Abstract: A liquid discharge apparatus of the present disclosure includes an ink composition and a liquid discharge section including a nozzle for discharging the ink composition. The ink composition is a pigment textile printing ink composition containing resin particles, water, and an organic solvent. The resin particles have a glass transition temperature of 5° C. or less and are contained in an amount of 6.5 mass % or more based on the total amount of the ink composition. The ink composition contains a polyhydric alcohol having a boiling point of 270° C. or more as the organic solvent in an amount of 15.0 mass % or less based on the total amount of the ink composition. The liquid discharge section includes a pressure chamber and a circulation passage for circulating the ink composition in the pressure chamber.
    Type: Application
    Filed: December 26, 2019
    Publication date: July 2, 2020
    Inventors: Ryota MIYASA, Hideki OKADA, Masakazu OHASHI
  • Patent number: 10584257
    Abstract: A treatment liquid composition contains water, 1,2-alkanediol, and an aggregating agent aggregating or thickening components of an ink composition containing a pigment and is used for a printing method performed by causing the ink composition to adhere to cloth by an ink jet method.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: March 10, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Toru Saito, Masayuki Murai, Ryota Miyasa
  • Patent number: 10557232
    Abstract: A treatment liquid composition for use in ink jet pigment textile printing and used by attaching it to fabric contains a cationic compound, at least one compound selected from polyvinylpyrrolidones, polyethylene oxides, carboxymethyl celluloses, hydroxyethyl celluloses, and polyvinyl alcohols, and water. The fabric contains polyester.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: February 11, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Masakazu Ohashi, Ryota Miyasa
  • Publication number: 20200040523
    Abstract: A treatment liquid composition is a treatment liquid composition which is used to be adhered to a cloth and which includes a cationic compound, a water-soluble resin, and water; a molecular weight distribution of a water-soluble component contained in the treatment liquid composition has a maximum peak in a molecular weight range of 28,000 to 2,800,000; and a content of a water-soluble resin having a molecular weight of 28,000 to 2,800,000 is 0.6 to 5.0 percent by mass with respect to a total mass of the treatment liquid composition.
    Type: Application
    Filed: July 30, 2019
    Publication date: February 6, 2020
    Inventors: Ryota MIYASA, Masakazu OHASHI
  • Patent number: 10337142
    Abstract: A textile printing method includes heating a cloth, and applying an ink composition onto the heated cloth by ejecting the ink composition from an ink jet head. The ink composition contains resin fine particles and has a viscosity of 4.5 mPa·s or less at 40° C. and a surface tension of 28 mN/m or less at 40° C.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: July 2, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Masakazu Ohashi, Toru Saito, Masayuki Murai, Ryota Miyasa, Takako Sugiyama
  • Publication number: 20190003115
    Abstract: A treatment liquid composition for use in ink jet pigment textile printing and used by attaching it to fabric contains a cationic compound, at least one compound selected from polyvinylpyrrolidones, polyethylene oxides, carboxymethyl celluloses, hydroxyethyl celluloses, and polyvinyl alcohols, and water. The fabric contains polyester.
    Type: Application
    Filed: June 29, 2018
    Publication date: January 3, 2019
    Inventors: Masakazu OHASHI, Ryota MIYASA
  • Publication number: 20180058002
    Abstract: A textile printing method includes heating a cloth, and applying an ink composition onto the heated cloth by ejecting the ink composition from an ink jet head. The ink composition contains resin fine particles and has a viscosity of 4.5 mPa·s or less at 40° C. and a surface tension of 28 mN/m or less at 40° C.
    Type: Application
    Filed: July 26, 2017
    Publication date: March 1, 2018
    Inventors: Masakazu OHASHI, Toru SAITO, Masayuki MURAI, Ryota MIYASA, Takako SUGIYAMA
  • Patent number: 9878537
    Abstract: An image forming method includes discharging an ink jet ink composition which contains a diketopyrrolopyrrole pigment and a solvent having a SP value of equal to or lower than 13 by using an apparatus including a piezo ink jet head satisfying the following Expression (1). 0.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: January 30, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Masayuki Murai, Masakazu Ohashi, Ryota Miyasa, Kosuke Chidate, Takako Sugiyama
  • Publication number: 20170292035
    Abstract: A treatment liquid composition contains water, 1,2-alkanediol, and an aggregating agent aggregating or thickening components of an ink composition containing a pigment and is used for a printing method performed by causing the ink composition to adhere to cloth by an ink jet method.
    Type: Application
    Filed: March 6, 2017
    Publication date: October 12, 2017
    Inventors: Toru SAITO, Masayuki MURAI, Ryota MIYASA