Patents by Inventor Tetsuya Aoyama

Tetsuya Aoyama 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: 8876276
    Abstract: In a recording method, a first ink composition containing a colorant, a photopolymerizable compound, and a photopolymerization initiator is ejected from a recording head onto a recording medium; light is emitted from a light source to the first ink composition that has adhered to the recording medium with the result that the first ink composition is cured at a cure rate that is in the range from 70 to 95%; a second ink composition containing a colorant, a photopolymerizable compound, and a photopolymerization initiator is ejected from a recording head to the first ink composition that has been cured on the recording medium; and light is emitted from a light source to the second ink composition.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: November 4, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Tetsuya Aoyama, Keitaro Nakano
  • Patent number: 8814338
    Abstract: An ink jet recording method for recording a non-water-based glitter ink on a recording medium, including forming an underlayer, in which a resin ink in which resin components are dispersed or dissolved in a dispersion medium is applied to at least a site of the recording medium on which the non-water-based glitter ink is recorded, thereby forming an underlayer, and recording a glitter ink, in which the non-water-based glitter ink is recorded on the underlayer.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: August 26, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Hidehiko Komatsu, Tetsuya Aoyama, Takashi Oyanagi, Kazuaki Tsukiana
  • Patent number: 8764150
    Abstract: The ink jet recording method according to the invention includes a first image recording step of recording an image by adhering the background ink to a first region and a second region of a recording medium; a second image recording step of recording an image by adhering a color ink onto the background ink of the first region; and a heating step of heating the recording medium at 35° C. to 100° C., and in which at least one of the background ink and the color ink does not contain a pyrrolidone derivative with a standard boiling point of 240° C. or higher.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: July 1, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Tetsuya Aoyama, Ippei Okuda, Hidehiko Komatsu
  • Patent number: 8757784
    Abstract: Ink for ink jet recording includes a coloring material and alkylpolyols, wherein the alkylpolyols include two or more types of first alkylpolyols having a log P value of greater than or equal to ?0.7 and less than or equal to 0.01, and a normal boiling point of greater than or equal to 180° C. and lower than or equal to 250° C., and the content of the alkylpolyols is greater than or equal to 5% by mass and less than or equal to 30% by mass.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: June 24, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Tetsuya Aoyama, Hidehiko Komatsu, Hitoshi Ohta, Takeshi Yano
  • Patent number: 8746867
    Abstract: Provided is an ink jet recording method including primarily applying a resin ink containing resin components to a recording medium to form a first resin ink layer, and secondarily applying the resin ink to the first resin ink layer to form a second resin ink layer, to thereby form a resin ink layer, wherein each of the primary applying process and the secondary applying process includes drying the applied resin ink.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: June 10, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Tetsuya Aoyama, Hidehiko Komatsu
  • Publication number: 20140104341
    Abstract: A ink composition for ink jet recording in which a non-absorbent or low absorbent recording medium is used includes water; a color material; a surfactant; a compound I represented by general formula (I) below; and does not substantially include alkyl polyols with a standard boiling point of 280° C. or higher; in which the surfactant is at least one type selected from a group consisting of a fluorine-based surfactant and a siloxane-based surfactant with 5 or more siloxane units. [In general formula (I), n represents an integer of 45 or higher to 230 or lower, each R1 independently represents an unmodified, an ether-modified, a polyester-modified, an epoxy-modified, an amine-modified, a carboxyl-modified, a fluorine-modified, an alkyloxy-modified, a mercapto-modified, a (meth)acryl-modified, a phenol-modified, a phenyl-modified, a carbinol-modified or an aralkyl-modified hydrocarbon group.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 17, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Takeshi Yano, Tetsuya Aoyama, Hitoshi Ohta
  • Publication number: 20140098157
    Abstract: [Object] To provide a recording method by which the occurrence of bleeding and repelling in a cured layer can be suppressed during overprinting. [Solution] In a recording method, a first ink composition containing a colorant, a photopolymerizable compound, and a photopolymerization initiator is ejected from a recording head onto a recording medium; light is emitted from a light source to the first ink composition that has adhered to the recording medium with the result that the first ink composition is cured at a cure rate that is in the range from 70 to 95%; a second ink composition containing a colorant, a photopolymerizable compound, and a photopolymerization initiator is ejected from a recording head to the first ink composition that has been cured on the recording medium; and light is emitted from a light source to the second ink composition.
    Type: Application
    Filed: December 11, 2013
    Publication date: April 10, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Tetsuya AOYAMA, Keitaro NAKANO
  • Patent number: 8628184
    Abstract: [Object]To provide a recording method by which the occurrence of bleeding and repelling in a cured layer can be suppressed during overprinting. [Solution]In a recording method, a first ink composition containing a colorant, a photopolymerizable compound, and a photopolymerization initiator is ejected from a recording head onto a recording medium; light is emitted from a light source to the first ink composition that has adhered to the recording medium with the result that the first ink composition is cured at a cure rate that is in the range from 70 to 95%; a second ink composition containing a colorant, a photopolymerizable compound, and a photopolymerization initiator is ejected from a recording head to the first ink composition that has been cured on the recording medium; and light is emitted from a light source to the second ink composition.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: January 14, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Tetsuya Aoyama, Keitaro Nakano
  • Publication number: 20130286084
    Abstract: Ink for ink jet recording includes a coloring material and alkylpolyols, wherein the alkylpolyols include two or more types of first alkylpolyols having a log P value of greater than or equal to ?0.7 and less than or equal to 0.01, and a normal boiling point of greater than or equal to 180° C. and lower than or equal to 250° C., and the content of the alkylpolyols is greater than or equal to 5% by mass and less than or equal to 30% by mass.
    Type: Application
    Filed: March 28, 2013
    Publication date: October 31, 2013
    Applicant: Seiko Epson Corporation
    Inventors: Tetsuya AOYAMA, Hidehiko KOMATSU, Hitoshi OHTA, Takeshi YANO
  • Publication number: 20130286069
    Abstract: The ink jet recording method according to the invention includes a first image recording step of recording an image by adhering the background ink to a first region and a second region of a recording medium; a second image recording step of recording an image by adhering a color ink onto the background ink of the first region; and a heating step of heating the recording medium at 35° C. to 100° C., and in which at least one of the background ink and the color ink does not contain a pyrrolidone derivative with a standard boiling point of 240° C. or higher.
    Type: Application
    Filed: March 28, 2013
    Publication date: October 31, 2013
    Applicant: Seiko Epson Corporation
    Inventors: Tetsuya AOYAMA, Ippei Okuda, Hidehiko Komatsu
  • Publication number: 20130257975
    Abstract: A cleaning method of an ink supply path in a recording apparatus where ink is supplied from an ink cartridge, includes a first cleaning step of cleaning by supplying to the ink supply path a gas-liquid mixture of a cleaning liquid A provided with an ink cleaning action and gas, and a second cleaning step of cleaning by supplying to the ink supply path a cleaning liquid B provided with an air bubble suppressing action after the first cleaning step.
    Type: Application
    Filed: March 26, 2013
    Publication date: October 3, 2013
    Applicant: Seiko Epson Corporation
    Inventors: Tetsuya AOYAMA, Hitoshi OHTA
  • Patent number: 8536245
    Abstract: An ink composition comprises a pigment coated with a water-insoluble polymer as a coloring material, a resin emulsion as an additive, water, and a water-soluble organic compound. The weight average molecular weight of the water-insoluble polymer is from 50,000 to 150,000. The resin emulsion comprises a resin comprising a monomer component of the same kind as the monomer component constituting the water-insoluble polymer and has a weight average molecular weight of 1.5 to 4 times that of the water-insoluble polymer. The average particle size of the resin emulsion is from 20 to 200 nm, and the average particle size of pigment particles in the ink composition ranges from 50 to 150 nm.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: September 17, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Miharu Kanaya, Tetsuya Aoyama, Masahiro Hanmura
  • Publication number: 20130235117
    Abstract: An ink composition comprises at least a coloring agent coated with a water-insoluble polymer and resin particles. The water-insoluble polymer is a polymer obtained by a solution polymerization process using at least a polymerizable unsaturated monomer and a polymerization initiator. The coloring agent coated with the water-insoluble polymer is a coloring material obtained by a phase inversion emulsification process in which, after the water-insoluble polymer is dissolved in an organic solvent, at least the coloring agent and water are added thereto, followed by mixing. The organic solvent is removed to perform dispersion in an aqueous system. The resin particles are a polymer obtained by an emulsion polymerization process using at least a crosslinking agent. The average particle size of the resin particles is from 20 to 80 nm.
    Type: Application
    Filed: April 26, 2013
    Publication date: September 12, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Miharu Kanaya, Tetsuya Aoyama, Masahiro Hanmura
  • Patent number: 8511810
    Abstract: There is provided an inkjet recording method in which two liquids are printed and which can perform inkjet ejection, in which the inkjet recording method provides a high-quality image using a reaction liquid having excellent storage stability, ejection stability, and recoverability from clogging on a recording medium having an absorbing layer of a paper support with low water absorption, the image having excellent abrasion resistance.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: August 20, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Tetsuya Aoyama, Hidehiko Komatsu
  • Publication number: 20130002777
    Abstract: An ink jet recording apparatus includes a first line head that ejects a polymerizable ink containing an active energy radiation-polymerizable compound but substantially not containing a coloring agent onto a recording medium to form an undercoat layer, a second line head that ejects a glittering ink onto the undercoat layer to form a glittering image, a third line head that ejects a coloring ink to form a color image, a transport mechanism that transports the recording medium, an irradiation portion that irradiates the undercoat layer with active energy radiation, and a heating portion that dries the glittering ink. The first line head is disposed upstream from the second line head in the recording medium moving direction, and the third line head is disposed downstream from the second line head in the recording medium moving direction.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 3, 2013
    Applicant: Seiko Epson Corporation
    Inventors: Takeshi Yano, Tetsuya Aoyama, Shoki Kasahara
  • Publication number: 20120287200
    Abstract: An ink set is used in one or more recording media selected from a non-ink-absorbing or low ink-absorbing medium, a medium having an arithmetic surface roughness Ra of 20 ?m or more, fabric, and plain paper. The ink set contains a glitter ink which is recorded by an ink jet head and contains a glitter pigment and a polymerizable ink which contains an active energy line polymerizable compound and does not substantially contain a coloring material.
    Type: Application
    Filed: May 2, 2012
    Publication date: November 15, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takeshi YANO, Tetsuya AOYAMA, Yusuke MIZUTAKI, Shoki KASAHARA
  • Publication number: 20120200633
    Abstract: An ink jet recording method includes forming an image on a print medium by discharging a specific ink; and transporting the print medium, wherein the forming and the transporting are alternatively performed for printing; in the forming an image, while a print head is moved relative to the print medium that stops in the printing area, scanning for discharging the ink from the print head to the print medium is performed a plurality of times, and the specific ink discharged to the print medium is fixed to the print medium by being supplied with energy; the print medium is a non-ink-absorptive or low-ink-absorptive print medium; and the specific ink contains 60% by mass or more of one or more kinds of organic solvent that have a boiling point of 120° C. to 240° C. and are selected from a group consisting of glycol ether-based solvents and non-protonic polar solvents in the ink.
    Type: Application
    Filed: February 7, 2012
    Publication date: August 9, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tetsuya Aoyama
  • Publication number: 20120052261
    Abstract: Provided is an ink jet recording method including primarily applying a resin ink containing resin components to a recording medium to form a first resin ink layer, and secondarily applying the resin ink to the first resin ink layer to form a second resin ink layer, to thereby form a resin ink layer, wherein each of the primary applying process and the secondary applying process includes drying the applied resin ink.
    Type: Application
    Filed: August 31, 2011
    Publication date: March 1, 2012
    Applicant: Seiko Epson Corporation
    Inventors: Tetsuya Aoyama, Hidehiko Komatsu
  • Patent number: 8127259
    Abstract: A synthesis constraint creating unit has a process emergence number acquiring unit that acquires, for each process attribute, the emergence number of the process belonging to each process attribute, the process being in the behavior level description, a circuit structure component specifying unit that specifies a kind of a circuit structural component which can embody the process belonging to each process attribute and which can be described in a register transfer level description, for each process attribute, and a synthesis constraint creating unit that creates synthesis constraint information indicating the kind and number of circuit structural component necessary for expressing the process described in the behavior level description by the register transfer level description based on the emergence number of the process acquired for each process attribute and the kind of the circuit structural component specified for each process attribute.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: February 28, 2012
    Assignee: NEC Corporation
    Inventor: Tetsuya Aoyama
  • Publication number: 20120040710
    Abstract: A communication control method executed in a multi-hop cellular network including at least one gateway and a plurality of radio base stations includes: a first radio base station performing radio resource management and movement management concerning a radio mobile station requesting, when the first radio base station determines it is necessary to switch a connection destination of the radio mobile station, a second radio base station at a handover destination to perform handover processing and instructing the radio mobile station (a handover execution mobile station) to perform handover to the second radio base station; and the second radio base station determining, based on the number of times of transfer until a signal transmitted from the first radio base station reaches the own station, whether to change the radio base station that performs the radio resource management and the movement management concerning the handover execution mobile station.
    Type: Application
    Filed: May 21, 2009
    Publication date: February 16, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tetsuya Aoyama, Yuya Takatsuka