Patents by Inventor Atsushi Denda

Atsushi Denda 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).

  • Patent number: 11370930
    Abstract: A solvent-based ink composition is provided that includes: an organic solvent; a surface-treated metal powder; and a polyoxyethylene alkyl ether phosphoric acid compound, the content of the polyoxyethylene alkyl ether phosphoric acid compound with respect to the total mass of an ink is 0.1 to 10.0 percent by mass, and the surface-treated metal powder contains aluminum or an aluminum alloy and is surface-treated by a surface treating agent of a fluorine-based compound.
    Type: Grant
    Filed: December 25, 2017
    Date of Patent: June 28, 2022
    Inventors: Hiroshi Takiguchi, Hiroaki Kida, Masaru Terada, Naoyuki Toyoda, Atsushi Denda
  • Publication number: 20210284856
    Abstract: A solvent-based ink composition is provided that includes: an organic solvent; a surface-treated metal powder; and a polyoxyethylene alkyl ether phosphoric acid compound, the content of the polyoxyethylene alkyl ether phosphoric acid compound with respect to the total mass of an ink is 0.1 to 10.0 percent by mass, and the surface-treated metal powder contains aluminum or an aluminum alloy and is surface-treated by a surface treating agent of a fluorine-based compound.
    Type: Application
    Filed: December 25, 2017
    Publication date: September 16, 2021
    Inventors: Hiroshi TAKIGUCHI, Hiroaki KIDA, Masaru TERADA, Naoyuki TOYODA, Atsushi DENDA
  • Patent number: 10392522
    Abstract: The ultraviolet curable composition includes a polymerizable compound, metal powder, and fluorine-containing powder, in which a content of the fluorine-containing powder is in a range of 0.010 mass % to 5.0 mass %. A constituting particle of the fluorine-containing powder preferably contains at least one of a particle formed of a fluorine polymer and an inorganic fine particle which is treated by using a fluorine-based surface treating agent. The metal powder preferably contains a material which is subjected to a surface treatment by using a fluorine-based surface treating agent as the constituting particle.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: August 27, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Hiroshi Takiguchi, Atsushi Denda, Naoyuki Toyoda
  • Patent number: 10106697
    Abstract: Disclosed herein is an aqueous base metal pigment dispersion liquid, including: a base metal pigment surface-treated with a fluorine-based compound; and water as a part of a solvent, in which the aqueous base metal pigment dispersion liquid further includes one or more solvents having a specific dielectric constant of greater than or equal to 30 and less than or equal to 50 and one or more solvents having a specific dielectric constant of less than 30, as measured by an alternate current-type dielectric constant measurement device at a temperature of 23° C.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: October 23, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Atsushi Denda
  • Patent number: 9873814
    Abstract: An ink composition includes a white coloring material, polymer particles, and a solvent, the polymer particles satisfying the relationship represented by the following expression (1). Y?0.33X+20??(1) where X is an average particle size D50 (nm) and Y is a melting start temperature (° C.).
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: January 23, 2018
    Assignees: Seiko Epson Corporation, Mitsui Chemicals Inc.
    Inventors: Takayoshi Kagata, Toshihiro Yoshimura, Yasuyuki Kagawa, Yukiko Egami, Hiroshi Maekawa, Hiroko Wachi, Tsuyoshi Sano, Akira Mizutani, Atsushi Denda
  • Patent number: 9802363
    Abstract: A method for producing an object includes forming and laying N unit layers into which an object is divided, sequentially from a first layer to an Nth layer, using a resin material as a material, or using a resin material for implementing a step, to form the object, the method including performing a discharge treatment at either or both of a timing while forming a unit layer among the N unit layers, and a timing after forming the unit layer, but before starting forming a next unit layer among the N unit layers.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: October 31, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Atsushi Denda, Kenji Kitada, Maki Nariai
  • Publication number: 20170121550
    Abstract: Disclosed herein is an aqueous base metal pigment dispersion liquid, including: a base metal pigment surface-treated with a fluorine-based compound; and water as a part of a solvent, in which the aqueous base metal pigment dispersion liquid further includes one or more solvents having a specific dielectric constant of greater than or equal to 30 and less than or equal to 50 and one or more solvents having a specific dielectric constant of less than 30, as measured by an alternate current-type dielectric constant measurement device at a temperature of 23° C.
    Type: Application
    Filed: January 12, 2017
    Publication date: May 4, 2017
    Inventor: Atsushi DENDA
  • Patent number: 9637655
    Abstract: Disclosed is an aqueous pigment dispersion including water and a base metal pigment, in which the base metal pigment is a base metal pigment which is surface-treated with a fluorine-based compound, and when performing an X-ray Photoelectron Spectroscopy analysis of a base metal pigment surface, a concentration of a fluorine element is 21 atm % to 35 atm %.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: May 2, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Atsushi Denda, Naoki Koike
  • Patent number: 9631102
    Abstract: A pigment dispersion liquid is a pigment dispersion liquid for a solvent-based ink including a base metal pigment and an organic solvent, in which the base metal pigment is subjected to a surface treatment by a fluorine-based compound, and in which the concentration of a fluorine element is from 8 atm % to 35 atm % when an X-ray photoelectron spectroscopy (XPS) analysis of the surface of the base metal pigment is performed.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: April 25, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Naoyuki Toyoda, Masaru Terada, Hiroshi Takiguchi, Tomohiro Ogawa, Atsushi Denda
  • Patent number: 9580607
    Abstract: Disclosed herein is an aqueous base metal pigment dispersion liquid, including: a base metal pigment surface-treated with a fluorine-based compound; and water as a part of a solvent, in which the aqueous base metal pigment dispersion liquid further includes one or more solvents having a specific dielectric constant of greater than or equal to 30 and less than or equal to 50 and one or more solvents having a specific dielectric constant of less than 30, as measured by an alternate current-type dielectric constant measurement device at a temperature of 23° C.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: February 28, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Atsushi Denda
  • Patent number: 9566814
    Abstract: An ink jet recording process using a glitter pigment provides satisfactory glitter even on a recording medium having a rough surface. The ink jet recording process includes a glitter image-forming step of forming a glitter image by discharging a glitter ink composition containing a glitter pigment to a recording medium and a pressing step of pressing the layer of the glitter image formed on the recording medium.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: February 14, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Naoki Koike, Atsushi Denda
  • Patent number: 9566803
    Abstract: There is provided a recording method, in which a glitter pigment ink and a clear ink containing substantially no color material is used with respect to a coated paper or a film, including: at least one of (A) primarily-applying the clear ink before applying the glitter pigment ink and (B) applying the clear ink in the same scanning at the time of applying the glitter pigment ink; and (C) secondarily-applying the clear ink after applying the glitter pigment ink.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: February 14, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Atsushi Denda
  • Patent number: 9512320
    Abstract: Disclosed herein is a base metal pigment, which is used for an aqueous ink composition containing water as a part of a solvent, in which the base metal pigment is surface-treated with a fluorine-based compound, and has a zeta potential of greater than or equal to ?50 mV and less than or equal to ?15 mV, as measured by an ultrasonic zeta potential measurement device, in a pH range of greater than or equal to 5 and less than or equal to 10.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: December 6, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Atsushi Denda, Masaru Terada, Hiroshi Takiguchi, Tomohiro Ogawa, Naoyuki Toyoda
  • Patent number: 9498973
    Abstract: An ink jet recording system includes an ink jet recording device; and a control portion that controls the ink jet recording device, in which when a first mode is selected from a plurality of recording modes, the control portion performs control of recording a security image corresponding to an input image on a recording medium by performing control of forming a glitter image by a glitter ink composition in a first image area on the recording medium, forming a color image by a color ink composition in the glitter image, and forming the color image by the color ink composition on a second image area that is in contact with the first image area.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: November 22, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Atsushi Denda, Shoki Kasahara
  • Patent number: 9475312
    Abstract: An ink jet printer includes a transport mechanism that transports a medium in a first direction; and a carriage that includes a plasma irradiation mechanism, which emits plasma generated in a discharge portion from a plasma irradiation port and then irradiates at least a part of the medium with the plasma, and a head which ejects ink onto the part of the medium which is irradiated with the plasma, and that moves in a second direction intersecting with the first direction, in which the plasma irradiation mechanism is provided on one side of the head in the second direction, and the discharge portion of the plasma irradiation mechanism is disposed so as not to come in contact with the medium.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: October 25, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Kenji Kitada, Takuya Miyakawa, Takashi Saiba, Kiyofumi Kitawada, Atsushi Denda, Maki Nariai
  • Publication number: 20160257827
    Abstract: The ultraviolet curable composition includes a polymerizable compound, metal powder, and fluorine-containing powder, in which a content of the fluorine-containing powder is in a range of 0.010 mass % to 5.0 mass %. A constituting particle of the fluorine-containing powder preferably contains at least one of a particle formed of a fluorine polymer and an inorganic fine particle which is treated by using a fluorine-based surface treating agent. The metal powder preferably contains a material which is subjected to a surface treatment by using a fluorine-based surface treating agent as the constituting particle.
    Type: Application
    Filed: November 4, 2014
    Publication date: September 8, 2016
    Inventors: Hiroshi TAKIGUCHI, Atsushi DENDA, Naoyuki TOYODA
  • Publication number: 20160243517
    Abstract: A method of manufacturing a dispersion liquid includes preparing a mixed liquid which contains a first solvent, a second solvent having solubility which is equal to or less than 1% with respect to the first solvent, and a compound having a polymerizable functional group; and microcapsulating and dispersing the first solvent or the second solvent by performing liquid plasma treatment on the mixed liquid while applying ultrasonic waves to the mixed liquid by using an ultrasonic wave generating apparatus.
    Type: Application
    Filed: February 23, 2016
    Publication date: August 25, 2016
    Applicant: Seiko Epson Corporation
    Inventors: Kenji KITADA, Maki NARIAI, Atsushi DENDA, Naoyuki TOYODA
  • Publication number: 20160222242
    Abstract: Disclosed is an aqueous pigment dispersion including water and a base metal pigment, in which the base metal pigment is a base metal pigment which is surface-treated with a fluorine-based compound, and when performing an X-ray Photoelectron Spectroscopy analysis of a base metal pigment surface, a concentration of a fluorine element is 21 atm % to 35 atm %.
    Type: Application
    Filed: April 8, 2016
    Publication date: August 4, 2016
    Inventors: Atsushi DENDA, Naoki KOIKE
  • Publication number: 20160222244
    Abstract: An ink composition includes a white coloring material, polymer particles, and a solvent, the polymer particles satisfying the relationship represented by the following expression (1). Y?0.33X+20??(1) where X is an average particle size D50 (nm) and Y is a melting start temperature (° C.).
    Type: Application
    Filed: January 28, 2016
    Publication date: August 4, 2016
    Inventors: Takayoshi KAGATA, Toshihiro YOSHIMURA, Yasuyuki KAGAWA, Yukiko EGAMI, Hiroshi MAEKAWA, Hiroko WACHI, Tsuyoshi SANO, Akira MIZUTANI, Atsushi DENDA
  • Patent number: 9375940
    Abstract: An ink accommodation body according to the invention is detachably attached to an ink jet recording apparatus, and is packaged with a package body, the ink accommodation body includes an ink accommodation portion that accommodates ink containing a base metal pigment; and an atmosphere opening portion that is connected to the ink accommodation portion at one end, and communicates with an atmosphere, and a hydrogen gas transmission rate of the package body is equal to or greater than 0.0001 ml/cm2·day·atm and equal to or less than 0.01 ml/cm2·day·atm.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: June 28, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Atsushi Denda, Shoki Kasahara