Patents by Inventor Taki Hashimoto

Taki Hashimoto 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: 20220126521
    Abstract: A three-dimensional shaping apparatus includes a plasticizing unit, a nozzle, a stage, and a control unit, wherein the plasticizing unit includes a driving motor, a screw, a barrel, and a first heater that heats a material supplied between the screw and the barrel, and the control unit performs a process of decreasing an output of the first heater when at least one of a first condition, a second condition, and a third condition is satisfied, provided that the first condition is that a measurement value of a first temperature sensor that measures a temperature of the screw or the barrel is larger than a first predetermined value, the second condition is that a torque value of the driving motor is smaller than a second predetermined value, and the third condition is that a measurement value of a pressure sensor that measures a pressure in a flow channel between a communication hole and a nozzle opening is smaller than a third predetermined value.
    Type: Application
    Filed: October 20, 2021
    Publication date: April 28, 2022
    Inventors: Taki HASHIMOTO, Yasushi KUTSUWADA
  • Patent number: 11167485
    Abstract: A three-dimensional shaping apparatus includes a melted material generator, a nozzle, a flow passage, a filter chamber, and a filter. The melted material generator generates a melted shaping material. The nozzle discharges the shaping material from the melted material generator. The shaping material is guided to the nozzle through the flow passage. The filter chamber is provided between the flow passage and the nozzle. The filter is disposed in the filter chamber and has pores through which the shaping material passes. A filter chamber cross-sectional area is larger than a flow passage cross-sectional area, and a filter cross-sectional area is larger than the flow passage cross-sectional area. The filter chamber cross-sectional area and filter cross-sectional area are perpendicular to a direction from the flow passage toward the nozzle, and the flow passage cross-sectional area is perpendicular to a flowing direction of the shaping material in the flow passage.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: November 9, 2021
    Inventors: Kohei Yuwaki, Koichi Saito, Taki Hashimoto
  • Patent number: 11001001
    Abstract: A three-dimensional shaping apparatus includes a material melting portion melting a material to form a shaping material, a supply channel through which the shaping material flows, a rotator that is configured to rotate around a rotation axis and that has a first nozzle configured to communicate with the supply channel and a second nozzle configured to communicate with the supply channel, a flow rate regulating mechanism that is provided in the supply channel and that regulates a flow rate of the shaping material to be supplied to the first nozzle or the second nozzle, and a controller controlling the flow rate regulating mechanism and the rotator so as to eject the shaping material to a table from the first nozzle or the second nozzle, thereby shaping a three-dimensional shaped article, wherein the controller controls rotation of the rotator so as to switch between a first state where the supply channel and the first nozzle communicate with each other and a second state where the supply channel and the second
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: May 11, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Taki Hashimoto, Kohei Yuwaki, Koichi Saito
  • Publication number: 20200406531
    Abstract: A three-dimensional shaping device includes a plasticization unit configured to plasticize a material into a shaping material using a rotating screw; a drive unit configured to rotate the screw; a supply flow path through which the shaping material flows; a nozzle configured to discharge the shaping material; a discharge amount adjusting mechanism configured to switch between stop and restart of discharge of the shaping material from the nozzle by a valve portion provided in the supply flow path; a pressure measuring portion configured to measure a pressure of the shaping material in the supply flow path between the plasticization unit and the valve portion; and a control unit configured to adjust rotation of the screw by controlling the drive unit according to a measured value of the pressure which is measured.
    Type: Application
    Filed: June 25, 2020
    Publication date: December 31, 2020
    Inventors: Taki HASHIMOTO, Kohei YUWAKI, Atsushi MAJIMA
  • Publication number: 20200198240
    Abstract: A three-dimensional shaping apparatus includes a material melting portion melting a material to form a shaping material, a supply channel through which the shaping material flows, a rotator that is configured to rotate around a rotation axis and that has a first nozzle configured to communicate with the supply channel and a second nozzle configured to communicate with the supply channel, a flow rate regulating mechanism that is provided in the supply channel and that regulates a flow rate of the shaping material to be supplied to the first nozzle or the second nozzle, and a controller controlling the flow rate regulating mechanism and the rotator so as to eject the shaping material to a table from the first nozzle or the second nozzle, thereby shaping a three-dimensional shaped article, wherein the controller controls rotation of the rotator so as to switch between a first state where the supply channel and the first nozzle communicate with each other and a second state where the supply channel and the second
    Type: Application
    Filed: December 18, 2019
    Publication date: June 25, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Taki Hashimoto, Kohei Yuwaki, Koichi Saito
  • Publication number: 20200037960
    Abstract: A biological information measurement device includes a first light emitting portion that emits first light, a second light emitting portion that emits second light, a light receiving portion that receives the first light reflected by an epidermis of a skin, a dermis of the skin, and a subcutaneous layer, and the second light reflected by the epidermis and dermis of the skin, and a processing unit that calculates biological information by removing noise, from a first detection signal output based on the first light received by the light receiving portion, using a second detection signal output based on the second light received by the light receiving portion.
    Type: Application
    Filed: July 30, 2019
    Publication date: February 6, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Taki HASHIMOTO, Hiromitsu MIZUKAMI
  • Publication number: 20200016832
    Abstract: A three-dimensional shaping apparatus includes a generation unit that generates a melted shaping material, a nozzle that discharges the shaping material generated by the generation unit, a flow passage through which the shaping material is guided to the nozzle, a filter chamber that is provided between the flow passage and the nozzle, a cross-sectional area of a cross section perpendicular to a direction from the flow passage toward the nozzle being larger than a flow passage cross-sectional area, which is a cross-sectional area of the flow passage, of a cross section perpendicular to a flowing direction of the shaping material in the flow passage, and a filter that has pores through which the shaping material passes and is disposed in the filter chamber, a cross-sectional area of a cross section perpendicular to a direction from the flow passage toward the nozzle being larger than the flow passage cross-sectional area.
    Type: Application
    Filed: July 10, 2019
    Publication date: January 16, 2020
    Inventors: Kohei YUWAKI, Koichi SAITO, Taki HASHIMOTO
  • Publication number: 20180085053
    Abstract: A measurement device includes a calculation section adapted to calculate oxygen saturation from a pulse wave signal of a test subject, and a determination section adapted to determine presence or absence of chest cavity expansion motion of the test subject from the pulse wave signal.
    Type: Application
    Filed: September 6, 2017
    Publication date: March 29, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Taki HASHIMOTO, Tetsuo MANO
  • Publication number: 20170251928
    Abstract: A measurement device includes a measurement unit that sequentially identifies a measurement value of oxygen saturation from a pulse wave signal indicating a pulse wave of an examinee, a setting unit that sets a reference range of the oxygen saturation of the examinee in accordance with the measurement value identified by the measurement unit, an analysis unit that compares the measurement value identified by the measurement unit and the reference range set by the setting unit with each other after the reference range is set, and a notification unit that notifies a measurement result corresponding to a comparison result obtained by the analysis unit.
    Type: Application
    Filed: February 21, 2017
    Publication date: September 7, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Taki HASHIMOTO
  • Publication number: 20170251963
    Abstract: A measurement apparatus includes a first light emission unit that emits light having a first wavelength, a second light emission unit that emits light having a second wavelength of which an arrival depth with respect to a measurement site exceeds the arrival depth of the light having the first wavelength, a light reception unit that generates a detection signal corresponding to a light reception level of light arriving from the measurement site, and an analysis unit that acquires biological information corresponding to the detection signal. The first light emission unit, the second light emission unit, and the light reception unit are installed on a detection surface facing the measurement site, and a distance between the first light emission unit and the light reception unit exceeds a distance between the second light emission unit and the light reception unit.
    Type: Application
    Filed: February 21, 2017
    Publication date: September 7, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Taki HASHIMOTO, Ayae SAWADO
  • Publication number: 20170172416
    Abstract: A biological information acquisition apparatus includes a light emitting part provided on a detection surface facing a measurement site and irradiating the measurement site with a non-laser illumination light, a laser irradiation part provided on the detection surface and irradiating the measurement site with a laser, a light receiving part provided on the detection surface and receiving lights from the measurement site, and generating a first detection signal indicating light reception intensity when the illumination light is radiated and a second detection signal indicating light reception intensity when the laser is radiated, an irradiation control unit that controls whether or not to allow laser irradiation by the laser irradiation part according to the first detection signal, and an analytical processing unit that acquires biological information according to the second detection signal.
    Type: Application
    Filed: November 18, 2016
    Publication date: June 22, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Taki HASHIMOTO, Ayae SAWADO
  • Patent number: 9283147
    Abstract: An encapsulation device includes: a fluid injection device that injects a first liquid forming a core; a liquid film holder that holds in film form a second liquid forming a shell containing the core; and a liquid contact device that makes the shell in contact with a third liquid, in which the first liquid is injected toward a liquid film of the second liquid retained by the liquid film holder to form a core, the core is wrapped with the second liquid on passing through the liquid film of the second liquid, thereby forming the shell, and the shell is made in contact with the third liquid to induce chemical reaction.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: March 15, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Taki Hashimoto, Yoshiki Fukui