Patents by Inventor Yohei YAMAZAKI

Yohei YAMAZAKI 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: 12134220
    Abstract: An injection molding machine, and a method of controlling the injection molding machine, can prevent a molding defect. The injection molding machine can mold a product for each execution of a molding cycle through an injecting process of injecting a material into clamped molds, a dwell process of controlling dwell pressure of the material in the molds, and a cooling process of cooling the material in the molds, the injection molding machine including a mold opening amount sensor and a controlling unit, the mold opening amount sensor being configured to detect a mold opening amount of the molds, the controlling unit being configured to control clamping force of the molds and the dwell pressure based on the mold opening amount during the molding cycle.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: November 5, 2024
    Assignee: SHUBAURA MACHINE CO., LTD.
    Inventors: Ryuichi Katsumata, Yohei Yamazaki, Kotaro Maruoka
  • Patent number: 12098049
    Abstract: A medium processing apparatus includes a conveyor, a tray, a binder, a mover, and a switcher. The switcher includes a first passage, a second passage, and a movable wall. The movable wall guides a guided portion of the binder to the second passage when the guided portion moving along the first passage from an end side to a center side contacts the movable wall; causes the guided portion to pass when the guided portion moving along the second passage from the end side to the center side contacts the movable wall; guides the guided portion to the first passage when the guided portion moving along the second passage from the center side to the end side contacts the movable wall; and causes the guided portion to pass when the guided portion moving along the first passage from the center side to the end side contacts the movable wall.
    Type: Grant
    Filed: April 14, 2023
    Date of Patent: September 24, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuki Ota, Yohei Yamazaki, Yuji Miyachi, Yusuke Hirono, Yuta Yanai, Yuji Susaki, Masanobu Kimata
  • Publication number: 20230331507
    Abstract: A medium processing apparatus includes a conveyor, a tray, a binder, a mover, and a switcher. The switcher includes a first passage, a second passage, and a movable wall. The movable wall guides a guided portion of the binder to the second passage when the guided portion moving along the first passage from an end side to a center side contacts the movable wall; causes the guided portion to pass when the guided portion moving along the second passage from the end side to the center side contacts the movable wall; guides the guided portion to the first passage when the guided portion moving along the second passage from the center side to the end side contacts the movable wall; and causes the guided portion to pass when the guided portion moving along the first passage from the center side to the end side contacts the movable wall.
    Type: Application
    Filed: April 14, 2023
    Publication date: October 19, 2023
    Applicant: Ricoh Company, Ltd.
    Inventors: Kazuki Ota, Yohei Yamazaki, Yuji Miyachi, Yusuke Hirono, Yuta Yanai, Yuji Susaki, Masanobu Kimata
  • Publication number: 20220242022
    Abstract: It is an objective of the present invention to provide an injection molding machine capable of preventing a molding defect and a method of controlling the injection molding machine. An injection molding machine according to the present embodiment is an injection molding machine that molds a product for each execution of a molding cycle through an injecting process of injecting a material into clamped molds, a dwell process of controlling dwell pressure of the material in the molds, and a cooling process of cooling the material in the molds, the injection molding machine including a mold opening amount sensor and a controlling unit, the mold opening amount sensor being configured to detect a mold opening amount of the molds, the controlling unit being configured to control clamping force of the molds and the dwell pressure based on the mold opening amount during the molding cycle.
    Type: Application
    Filed: December 16, 2019
    Publication date: August 4, 2022
    Applicant: SHIBAURA MACHINE CO., LTD.
    Inventors: Ryuichi KATSUMATA, Yohei YAMAZAKI, Kotaro MARUOKA
  • Patent number: 11155432
    Abstract: A sheet post-processing apparatus includes an output tray on which a sheet ejected from a sheet outlet is stacked; a wall disposed downstream from the output tray in a sheet ejection direction; and an alignment member configured to contact and move the sheet on the output tray, to bring a rear end of the sheet in the sheet ejection direction into contact with the wall for alignment. The alignment member is selectively set at three positions of: an alignment position protruding beyond the wall toward the output tray to contact the sheet on the output tray; a withdrawn position inward of the wall; and a home position between the alignment position and the withdrawn position.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: October 26, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Hidefumi Shibata, Yohei Yamazaki, Masanobu Kimata, Yasuki Matsuura
  • Publication number: 20200231399
    Abstract: A sheet post-processing apparatus includes an output tray on which a sheet ejected from a sheet outlet is stacked; a wall disposed downstream from the output tray in a sheet ejection direction; and an alignment member configured to contact and move the sheet on the output tray, to bring a rear end of the sheet in the sheet ejection direction into contact with the wall for alignment. The alignment member is selectively set at three positions of: an alignment position protruding beyond the wall toward the output tray to contact the sheet on the output tray; a withdrawn position inward of the wall; and a home position between the alignment position and the withdrawn position.
    Type: Application
    Filed: November 14, 2019
    Publication date: July 23, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Hidefumi SHIBATA, Yohei YAMAZAKI, Masanobu KIMATA, Yasuki MATSUURA