Patents by Inventor Riona HAYASHI
Riona HAYASHI 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).
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Patent number: 11958222Abstract: A plasticizing device that plasticizes a solid material includes a drive motor, a screw rotated by the drive motor along a rotation axis of the drive motor and having a groove forming surface on which a groove is formed, a barrel having a facing surface facing the groove forming surface and provided with a communication hole in a central portion thereof, and a heating unit configured to heat at least one of the screw and the barrel. A first facing region and a second facing region that is closer to the central portion than the first facing region are provided between the groove forming surface and the facing surface. A second gap between the groove forming surface and the facing surface in the second facing region is larger than a first gap between the groove forming surface and the facing surface in the first facing region.Type: GrantFiled: November 24, 2020Date of Patent: April 16, 2024Assignee: SEIKO EPSON CORPORATIONInventors: Kenta Anegawa, Seiichiro Yamashita, Riona Hayashi, Megumi Enari
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Patent number: 11845210Abstract: An injection molding apparatus including a fixed die including a gate via which a molding material flows in, a movable die that forms along with the fixed die a cavity and separates from the fixed die at a point of time of mold opening, an open-gate hot runner that includes a nozzle including a channel that guides the molding material to the gate and a heater that heats the channel, the hot runner being attachable to and detachable from the fixed die, and a cap member that is disposed between the fixed die and the hot runner and has a melting point higher than a melting point of the molding material.Type: GrantFiled: February 16, 2021Date of Patent: December 19, 2023Assignee: SEIKO EPSON CORPORATIONInventors: RĂona Hayashi, Kenta Anegawa, Kakeru Sasagawa, Hiroki Takano
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Patent number: 11813783Abstract: An injection molding system includes: an injection molding machine; an inspection device including a first placement unit, a second placement unit, an inspection unit, and a moving unit configured to change a relative position between the first placement unit and the inspection unit and a relative position between the second placement unit and the inspection unit; a third placement unit; a robot configured to convey the molded object; and a control device.Type: GrantFiled: September 17, 2020Date of Patent: November 14, 2023Assignee: Seiko Epson CorporationInventors: Kakeru Sasagawa, Kei Yokota, Kenta Anegawa, Seiichiro Yamashita, Yuji Shinbaru, Kazunobu Maruyama, Daichi Miyashita, Hiroki Takano, Riona Hayashi
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Patent number: 11511471Abstract: An injection molding system includes: an injection molding machine configured to operate in accordance with a command generated using a first language, and inject a molten material into a mold to mold a molded object; a robot configured to operate in accordance with a command generated using a second language, and convey the molded object; and a control device configured to control the injection molding machine and the robot. When determining that an error occurs in at least one of the injection molding machine and the robot, the control device transmits, to the injection molding machine, a command generated using the first language and for causing the injection molding machine to execute a return operation, and transmits, to the robot, a command interpretable by the second language and for causing the robot to execute a return operation, so as to cause the injection molding machine and the robot to execute the return operations.Type: GrantFiled: September 17, 2020Date of Patent: November 29, 2022Assignee: Seiko Epson CorporationInventors: Hiroki Takano, Kakeru Sasagawa, Kei Yokota, Kenta Anegawa, Seiichiro Yamashita, Riona Hayashi, Yuji Shinbaru
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Patent number: 11491691Abstract: An injection molding system includes: an injection molding machine where a shaping mold is installed; a material supply device supplying a material to the injection molding machine; a temperature controller controlling a temperature of the shaping mold; a dryer drying a material stored in the material supply device; a controller controlling the injection molding machine; and a casing. The injection molding machine, the material supply device, the temperature controller, the dryer, and the controller are provided inside the casing. The casing has a caster and is configured to be movable.Type: GrantFiled: September 17, 2020Date of Patent: November 8, 2022Assignee: Seiko Epson CorporationInventors: Kakeru Sasagawa, Kei Yokota, Kenta Anegawa, Seiichiro Yamashita, Yuji Shinbaru, Riona Hayashi
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Publication number: 20220032536Abstract: A variation in a deposition amount per unit area of a plasticized material discharged from each nozzle and deposited on a stage due to a variation in a discharge amount of the plasticized material discharged from each nozzle is reduced. A three-dimensional shaping device includes: a plasticizing unit configured to generate a plasticized material by rotation of a screw; a discharge unit configured to discharge the plasticized material from a plurality of nozzles; a discharge amount adjustment unit configured to adjust a discharge amount of the plasticized material from each of the plurality of nozzles; a moving unit configured to relatively move the discharge unit with respect to a stage; and a control unit.Type: ApplicationFiled: July 27, 2021Publication date: February 3, 2022Inventors: Kenta Anegawa, Riona Hayashi
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Publication number: 20210331365Abstract: A plasticizing device includes a screw that has a grooved face provided with a first groove, a barrel that has an opposed face and a communication hole communicating with the first groove at the opposed face, and a heating section that heats a material supplied to the first groove, wherein the first groove includes a central portion opposed to the communication hole, a material supply portion that is provided at an outer circumference of the grooved face , and a coupling portion that couples the central portion to the material supply portion, a second groove that is coupled to the communication hole is provided and when viewed from the rotational axis direction, an end at the outer circumferential side of the second groove is located inside a track drawn by a boundary line between the material supply portion and the coupling portion when the screw is rotated once.Type: ApplicationFiled: April 26, 2021Publication date: October 28, 2021Inventors: Megumi ENARI, Kenta ANEGAWA, Riona HAYASHI
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Publication number: 20210260800Abstract: A plasticization device that plasticizes a material, includes: a drive motor; a rotor that is to be rotated by the drive motor and has a groove-forming surface in which a curved projection strip portion is formed from a peripheral edge of a circular central portion toward an outer periphery of the rotor; a barrel that faces the groove-forming surface and includes a communication hole at a position facing the central portion of the groove-forming surface; and a heating unit that heats the material supplied between the rotor and the barrel, the rotor includes a protrusion protruding from the central portion toward the communication hole, and 0.28?S2/S1?1.03??(1), wherein S1 is an area of the central portion and S2 is a maximum area of a cross section of the protrusion along the groove-forming surface.Type: ApplicationFiled: February 22, 2021Publication date: August 26, 2021Inventors: Riona HAYASHI, Seiichiro YAMASHITA, Kenta ANEGAWA, Megumi ENARI, Masashi FUCHII
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Publication number: 20210260798Abstract: An injection molding apparatus including a fixed die including a gate via which a molding material flows in, a movable die that forms along with the fixed die a cavity and separates from the fixed die at a point of time of mold opening, an open-gate hot runner that includes a nozzle including a channel that guides the molding material to the gate and a heater that heats the channel, the hot runner being attachable to and detachable from the fixed die, and a cap member that is disposed between the fixed die and the hot runner and has a melting point higher than a melting point of the molding material.Type: ApplicationFiled: February 16, 2021Publication date: August 26, 2021Inventors: Riona HAYASHI, Kenta ANEGAWA, Kakeru SASAGAWA, Hiroki TAKANO
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Publication number: 20210154901Abstract: A plasticizing device that plasticizes a solid material includes a drive motor, a screw rotated by the drive motor along a rotation axis of the drive motor and having a groove forming surface on which a groove is formed, a barrel having a facing surface facing the groove forming surface and provided with a communication hole in a central portion thereof, and a heating unit configured to heat at least one of the screw and the barrel. A first facing region and a second facing region that is closer to the central portion than the first facing region are provided between the groove forming surface and the facing surface. A second gap between the groove forming surface and the facing surface in the second facing region is larger than a first gap between the groove forming surface and the facing surface in the first facing region.Type: ApplicationFiled: November 24, 2020Publication date: May 27, 2021Inventors: Kenta ANEGAWA, Seiichiro YAMASHITA, Riona HAYASHI, Megumi ENARI
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Publication number: 20210086425Abstract: An injection molding system includes: an injection molding machine configured to operate in accordance with a command generated using a first language, and inject a molten material into a mold to mold a molded object; a robot configured to operate in accordance with a command generated using a second language, and convey the molded object; and a control device configured to control the injection molding machine and the robot. When determining that an error occurs in at least one of the injection molding machine and the robot, the control device transmits, to the injection molding machine, a command generated using the first language and for causing the injection molding machine to execute a return operation, and transmits, to the robot, a command interpretable by the second language and for causing the robot to execute a return operation, so as to cause the injection molding machine and the robot to execute the return operations.Type: ApplicationFiled: September 17, 2020Publication date: March 25, 2021Inventors: Hiroki TAKANO, Kakeru SASAGAWA, Kei YOKOTA, Kenta ANEGAWA, Seiichiro YAMASHITA, Riona HAYASHI, Yuji SHINBARU
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Publication number: 20210086414Abstract: An injection molding system includes: an injection molding machine where a shaping mold is installed; a material supply device supplying a material to the injection molding machine; a temperature controller controlling a temperature of the shaping mold; a dryer drying a material stored in the material supply device; a controller controlling the injection molding machine; and a casing. The injection molding machine, the material supply device, the temperature controller, the dryer, and the controller are provided inside the casing. The casing has a caster and is configured to be movable.Type: ApplicationFiled: September 17, 2020Publication date: March 25, 2021Inventors: Kakeru SASAGAWA, Kei YOKOTA, Kenta ANEGAWA, Seiichiro YAMASHITA, Yuji SHINBARU, Riona HAYASHI
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Publication number: 20210086426Abstract: An injection molding system includes: an injection molding machine; an inspection device including a first placement unit, a second placement unit, an inspection unit, and a moving unit configured to change a relative position between the first placement unit and the inspection unit and a relative position between the second placement unit and the inspection unit; a third placement unit; a robot configured to convey the molded object; and a control device.Type: ApplicationFiled: September 17, 2020Publication date: March 25, 2021Inventors: Kakeru Sasagawa, Kei Yokota, Kenta Anegawa, Seiichiro Yamashita, Yuji Shinbaru, Kazunobu Maruyama, Daichi Miyashita, Hiroki Takano, Riona Hayashi