Patents by Inventor Masayuki GOZU

Masayuki GOZU 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: 20240140032
    Abstract: A three-dimensional shaping device includes a plasticizing unit configured to plasticize a material to generate a plasticized material, a nozzle configured to discharge the plasticized material, a stage including a shaping surface on which the plasticized material is stacked, a moving unit configured to change relative positions of the nozzle and the stage, a plate-shaped first heating unit including a heater configured to heat the plasticized material on the stage, a through-hole being formed in the first heating unit, and a first supporting unit configured such that a relative position thereof to the stage changes together with the nozzle, the first supporting unit supporting the first heating unit to thereby dispose the first heating unit in a position opposed to the stage. At a shaping time, at least a part of the nozzle is located in the through-hole. The first supporting unit includes a posture changing unit configured to allow a change in a posture of the first heating unit.
    Type: Application
    Filed: October 26, 2023
    Publication date: May 2, 2024
    Inventors: Masayuki GOZU, Taki HASHIMOTO, Kazuhide NAKAMURA
  • Publication number: 20240066805
    Abstract: A three-dimensional modeling system includes: an ejection unit including a nozzle configured to eject a modeling material; a stage on which the modeling material is to be deposited; a movement unit configured to change relative positions of the ejection unit and the stage; a housing accommodating the ejection unit and the stage; a control unit configured to control the movement unit; and a reception unit configured to receive a mode related to maintenance of the ejection unit. The control unit controls the movement unit to move the ejection unit to a set position in the housing according to the mode received by the reception unit.
    Type: Application
    Filed: August 25, 2023
    Publication date: February 29, 2024
    Inventors: Taki HASHIMOTO, Masayuki GOZU
  • Publication number: 20240033999
    Abstract: A plasticizing device plasticizes a material to generate a plasticized material. The plasticizing device includes a screw having a groove forming surface on which a groove is formed, a barrel having a facing surface that faces the groove forming surface and formed with a communication hole through which the plasticized material flows outside, a first heating unit disposed in the barrel and configured to heat the material supplied to the groove, and a first detection unit that is disposed in the barrel and configured to detect a temperature of the groove. The barrel is formed with a first hole for accommodating the first heating unit and a second hole for accommodating the first detection unit. A direction in which the first hole extends coincides with a direction in which the second hole extends. The first heating unit and the first detection unit are coupled to each other via a fixing member.
    Type: Application
    Filed: July 27, 2023
    Publication date: February 1, 2024
    Inventors: Yuta SAKAI, Kazuhide NAKAMURA, Masayuki GOZU, Masaaki OGIHARA
  • Publication number: 20230415412
    Abstract: A three-dimensional shaping stage includes: a placement portion that includes an opening and a reference surface whose flatness is adjusted; a shaping stage that is placed at the reference surface so as to cover the opening and that includes a shaping surface at which shaping layers are stacked; a heating unit that is disposed below the shaping stage and that is configured to heat the shaping stage; a pressing unit configured to press the heating unit against the shaping stage via the opening; and a holding unit configured to relatively hold the shaping stage to the reference surface.
    Type: Application
    Filed: June 26, 2023
    Publication date: December 28, 2023
    Inventors: Takafumi SAMESHIMA, Taki HASHIMOTO, Masayuki GOZU
  • Publication number: 20230264421
    Abstract: A material dispensing device includes a material storage unit that stores a material therein and has an outlet portion at a lower portion thereof, and a dispensing unit that dispenses the material dispensed from the outlet portion to an outside with at least a part of the material being plasticized. The material dispensing device includes a remaining amount detection unit that detects a remaining amount of the material stored in the material storage unit from above the material storage unit. A three-dimensional shaping device includes the material dispensing device that dispenses a material for shaping, and a stage on which the material dispensed from the material dispensing device is stacked.
    Type: Application
    Filed: January 24, 2023
    Publication date: August 24, 2023
    Inventor: Masayuki GOZU
  • Patent number: 11731362
    Abstract: A shaping stage for three-dimensional shaping includes: a table having a shaping surface on which a shaping material is discharged; a posture adjusting unit configured to adjust a posture of the shaping surface; and a cooling unit configured to cool the posture adjusting unit.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: August 22, 2023
    Assignee: Seiko Epson Corporation
    Inventors: Masayuki Gozu, Kenichi Ono
  • Publication number: 20230234289
    Abstract: A three-dimensional shaping device includes: a dispensing unit having a nozzle and configured to dispense a material toward a stage; a cleaning mechanism configured to clean the nozzle; a moving unit configured to move the dispensing unit and the cleaning mechanism relative to the stage; and a control unit configured to control an operation of the moving unit. The cleaning mechanism includes a cleaning unit including a purge unit in which the material is purged from the nozzle and a brush unit to come into contact with the nozzle, and a recovery unit configured to recover the material accumulated in the purge unit. The control unit is configured to move the cleaning unit relative to the stage in conjunction with movement of the dispensing unit relative to the stage.
    Type: Application
    Filed: January 26, 2023
    Publication date: July 27, 2023
    Inventor: Masayuki GOZU
  • Publication number: 20230234288
    Abstract: A three-dimensional shaping device includes: a discharge part that includes a nozzle configured to discharge a shaping material from a nozzle opening thereof; a stage that includes a shaping surface on which the shaping material is to be deposited; a heating part configured to heat the shaping material deposited on the stage; and a control part configured to control the heating part. The heating part includes a first region and a second region closer to an outer periphery of the heating part than is the first region, as viewed from a direction of a perpendicular line of the shaping surface. The control part controls the heating part to make a temperature of the second region higher than a temperature of the first region.
    Type: Application
    Filed: January 23, 2023
    Publication date: July 27, 2023
    Inventors: Tatsuya TERAMOTO, Taki HASHIMOTO, Kazuhide NAKAMURA, Masayuki GOZU, Takafumi SAMESHIMA
  • Publication number: 20230234299
    Abstract: A three-dimensional molding device includes: a molding unit including a nozzle configured to eject a molding material from a nozzle opening formed in a distal end portion; a stage having a deposition surface on which the molding material is deposited; a movement mechanism configured to change relative positions of the nozzle and the stage; a measurement unit configured to measure a distance between the deposition surface and the distal end portion; and a control unit configured to control the movement mechanism. The measurement unit includes a contact-type first detection unit configured to move in conjunction with the nozzle, and a contact-type second detection unit configured to move in conjunction with the stage. The first detection unit and the second detection unit are configured such that, when the first detection unit and the second detection unit come into contact with each other, one of the first detection unit and the second detection unit detects the contact.
    Type: Application
    Filed: January 19, 2023
    Publication date: July 27, 2023
    Inventors: Taki HASHIMOTO, Masayuki GOZU
  • Publication number: 20230062207
    Abstract: A three-dimensional shaping device includes: a discharge unit having a nozzle and configured to discharge a material toward a stage; a cleaning mechanism configured to clean the nozzle; and a moving unit configured to move the discharge unit and the cleaning mechanism relative to the stage. The moving unit is configured to move the cleaning mechanism relative to the stage in conjunction with the movement of the discharge unit relative to the stage.
    Type: Application
    Filed: August 26, 2022
    Publication date: March 2, 2023
    Inventor: Masayuki GOZU
  • Publication number: 20230033100
    Abstract: A shaping stage for three-dimensional shaping includes: a table having a shaping surface on which a shaping material is discharged; a posture adjusting unit configured to adjust a posture of the shaping surface; and a cooling unit configured to cool the posture adjusting unit.
    Type: Application
    Filed: July 26, 2022
    Publication date: February 2, 2023
    Inventors: Masayuki GOZU, Kenichi ONO
  • Publication number: 20230030646
    Abstract: A plasticizing device includes: a drive motor; a screw shaft rotated by the drive motor; a flat screw having a coupling surface coupled to the screw shaft and a groove forming surface in which a groove is formed, and configured to rotate around the screw shaft; a barrel having a facing surface facing the groove forming surface, and formed with a communication hole; a heating unit configured to heat a material supplied to between the flat screw and the barrel; and a bearing part configured to rotatably support the screw shaft and receive a thrust load applied to the screw shaft from the flat screw. The groove forming surface and the facing surface are separated from each other at a predetermined interval.
    Type: Application
    Filed: July 28, 2022
    Publication date: February 2, 2023
    Inventor: Masayuki GOZU
  • Publication number: 20220402210
    Abstract: A plasticizing device includes: a material storage unit having a charging port and configured to store pellet-shaped resin pellets; a plasticizing unit having a supply port in communication with the charging port and configured to plasticize at least a part of the resin pellets to generate a shaping material; a coupling pipe having a coupling path coupling the charging port and the supply port; a first material sensor configured to detect a remaining quantity of the resin pellets in the coupling path; and a control unit. The material storage unit includes a material supply mechanism configured to supply the resin pellets to the coupling path, and when the remaining quantity of the resin pellets detected by the first material sensor is less than a first reference value, the control unit controls the material supply mechanism to supply a predetermined quantity of the resin pellets to the coupling path.
    Type: Application
    Filed: June 14, 2022
    Publication date: December 22, 2022
    Inventor: Masayuki GOZU
  • Patent number: 11351731
    Abstract: A three-dimensional shaping device includes a nozzle that discharges a shaping material, a stage that includes a stacking surface on which the shaping material is stacked, a moving mechanism that changes a relative position between the nozzle and the stage, a distance measurement mechanism that is disposed at a position facing the nozzle, a cleaning mechanism that cleans a tip end surface of the nozzle, and a control unit that controls the moving mechanism while discharging the shaping material from the nozzle towards the stacking surface so as to shape a three-dimensional shaped object. The control unit measures a first value relating to a distance between the tip end surface of the nozzle and the stacking surface after the tip end surface of the nozzle is cleaned, and controls the moving mechanism based on the first value to adjust the distance between the stacking surface and the tip end surface of the nozzle to a predetermined distance to shape the three-dimensional shaped object.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: June 7, 2022
    Inventors: Kohei Yuwaki, Masayuki Gozu, Koichi Saito
  • Patent number: 11345090
    Abstract: A three-dimensional shaping device includes a nozzle that discharges a shaping material from a discharge port formed on a tip end surface, a stage that includes a stacking surface on which the shaping material is stacked, a distance measurement mechanism that is disposed at a position facing the nozzle, a cleaning mechanism that cleans the tip end surface of the nozzle, and a control unit that controls the distance measurement mechanism to measure a value relating to a facing distance between the nozzle and the stacking surface after the cleaning mechanism cleans the tip end surface of the nozzle.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: May 31, 2022
    Inventors: Kohei Yuwaki, Masayuki Gozu, Koichi Saito
  • Publication number: 20200406547
    Abstract: A three-dimensional shaping device includes a nozzle that discharges a shaping material from a discharge port formed on a tip end surface, a stage that includes a stacking surface on which the shaping material is stacked, a distance measurement mechanism that is disposed at a position facing the nozzle, a cleaning mechanism that cleans the tip end surface of the nozzle, and a control unit that controls the distance measurement mechanism to measure a value relating to a facing distance between the nozzle and the stacking surface after the cleaning mechanism cleans the tip end surface of the nozzle.
    Type: Application
    Filed: June 24, 2020
    Publication date: December 31, 2020
    Inventors: Kohei YUWAKI, Masayuki GOZU, Koichi SAITO
  • Publication number: 20200406548
    Abstract: A three-dimensional shaping device includes a nozzle that discharges a shaping material, a stage that includes a stacking surface on which the shaping material is stacked, a moving mechanism that changes a relative position between the nozzle and the stage, a distance measurement mechanism that is disposed at a position facing the nozzle, a cleaning mechanism that cleans a tip end surface of the nozzle, and a control unit that controls the moving mechanism while discharging the shaping material from the nozzle towards the stacking surface so as to shape a three-dimensional shaped object. The control unit measures a first value relating to a distance between the tip end surface of the nozzle and the stacking surface after the tip end surface of the nozzle is cleaned, and controls the moving mechanism based on the first value to adjust the distance between the stacking surface and the tip end surface of the nozzle to a predetermined distance to shape the three-dimensional shaped object.
    Type: Application
    Filed: June 24, 2020
    Publication date: December 31, 2020
    Inventors: Kohei YUWAKI, Masayuki GOZU, Koichi SAITO