Patents by Inventor Hiromasa Tsutsumi

Hiromasa Tsutsumi 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: 20240131848
    Abstract: A liquid ejecting apparatus includes a liquid ejection head to eject liquid, a recovery unit, a housing, a discharge unit, a casing including the discharge unit and the housing, and a liquid receptacle. The recovery unit maintains liquid ejecting performance of the liquid ejection head. The housing houses a container that accommodates liquid received by the recovery unit. The discharge unit discharges the liquid received by the recovery unit to the container. The liquid receptacle is disposed below the discharge unit in a direction of gravity in the casing and includes a first groove extending in a first direction crossing the direction of gravity and a second groove extending in a second direction crossing the direction of gravity and the first direction.
    Type: Application
    Filed: October 16, 2023
    Publication date: April 25, 2024
    Inventors: HIROMASA TSUTSUMI, HIDEAKI MATSUMURA, TSUYOSHI SAEKI, NORIO SAKURAI, DAIJU TAKEDA, SHOTA ASADA, TAIJI MARUYAMA
  • Publication number: 20240109330
    Abstract: A printing apparatus includes a liquid tank unit, a printing head, and a supply tube unit. The liquid tank unit includes first and second liquid tanks that store liquid and are arranged in parallel to each other. The printing head ejects liquid from the first and second tanks while moving in a main scanning direction. The supply tube unit includes a first supply tube connecting the first liquid tank to the printing head and includes a second supply tube coupled in parallel to the first supply tube and connecting the second liquid tank to the printing head. The second supply tube transitions from a connected tube state in which the second and first supply tubes are coupled in parallel to a single tube state by being separated from the first supply tube, passes across the first supply tube, and is connected to a connection port of the second liquid tank.
    Type: Application
    Filed: September 28, 2023
    Publication date: April 4, 2024
    Inventors: Dauu TAKEDA, Hideaki MATSUMURA, Tsuyoshi SAEKI, Norio SAKURAI, Hiromasa TSUTSUMI, Shota ASADA, Taiji MARUYAMA
  • Publication number: 20240109331
    Abstract: Disclosed is a recording apparatus including a tank configured to store liquid to be supplied to a recording head that ejects the liquid, the tank including an inlet port for liquid injection; a cap unit including a shaft portion and a cap configured to turn about the shaft portion between a first position at which the cap caps the inlet port and a second position at which the cap does not cap the inlet port, the shaft portion being provided to a housing that encloses the tank; and a biasing unit configured to bias the cap unit in a direction to move the cap apart from the inlet port, wherein the cap unit does not move at the second position while being biased by the biasing unit.
    Type: Application
    Filed: September 28, 2023
    Publication date: April 4, 2024
    Inventors: TSUYOSHI SAEKI, HIDEAKI MATSUMURA, YURI MORI, KEN TAKENAGA, SHOTA ASADA, KOKI SHIMADA, DAIJU TAKEDA, HIROMASA TSUTSUMI, MINEYOSHI TOMIE
  • Publication number: 20240109333
    Abstract: A liquid storage container includes a storage portion configured to store liquid, an opening portion provided on a first surface and configured to allow injection of the liquid into the storage portion, a receiving portion consisting of the first surface and a wall disposed around the opening portion on the first surface, and a liquid holding unit configured to hold the liquid guided by a guiding portion from the liquid receiving portion to outside of the liquid receiving portion. The liquid holding unit includes a second surface different from the first surface of the liquid storage container and a flexible member.
    Type: Application
    Filed: September 27, 2023
    Publication date: April 4, 2024
    Inventors: TAIJI MARUYAMA, HIDEAKI MATSUMURA, TSUYOSHI SAEKI, NORIO SAKURAI, DAIJU TAKEDA, SHOTA ASADA, HIROMASA TSUTSUMI
  • Publication number: 20240083175
    Abstract: A printing apparatus includes a support member configured to support a printhead that performs printing by discharging ink to a print medium, a connecting member including a connecting portion connected to an ink introduction portion of the printhead and through which the ink introduction portion communicates with an ink supply passage via the connecting portion, a rotation member configured to hold the connecting member such that a posture of the connecting member is changeable, and configured to be supported by the support member to be rotatable between a connecting position at which the ink introduction portion and the connecting portion are connected and a connection releasing position at which the ink introduction portion and the connecting portion are not connected, and a biasing portion configured to bias the connecting member to a first posture with respect to the rotation member.
    Type: Application
    Filed: April 26, 2023
    Publication date: March 14, 2024
    Inventors: HIROMASA TSUTSUMI, HIDEAKI MATSUMURA, TSUYOSHI SAEKI, YURI MORI, KOKI SHIMADA, SHOTA ASADA, KEN TAKENAGA, DAIJU TAKEDA, MINEYOSHI TOMIE
  • Publication number: 20230405995
    Abstract: A printing apparatus includes a liquid container. The liquid container includes a storage portion configured to store a liquid to be supplied to a discharge head that discharges the liquid, a first channel configured to be inserted into a replenishing bottle, which is configured to replenish the liquid to the storage portion, and to communicate with the replenishing bottle, and a second channel between the first channel and the storage portion, the second channel including, at an end portion on a side of the first channel, a first shape portion having a sectional shape common to a part of a sectional shape of the first channel.
    Type: Application
    Filed: June 1, 2023
    Publication date: December 21, 2023
    Inventors: KOKI SHIMADA, HIDEAKI MATSUMURA, YURI MORI, TSUYOSHI SAEKI, KEN TAKENAGA, DAIJU TAKEDA, SHOTA ASADA, HIROMASA TSUTSUMI, MINEYOSHI TOMIE, TAKAO KAWAI, MEGUMI UETA, ERIKA IYAMA
  • Publication number: 20230330988
    Abstract: A liquid ejection apparatus includes a first liquid storage container, a second liquid storage container, a first terminal member, a second terminal member, and a circuit board. The first liquid storage container stores liquid to be supplied to a liquid ejection head that ejects the liquid to an ejection medium. The second liquid storage container is arranged side by side in a first direction with respect to the first liquid storage container. The first terminal member comes into contact with the liquid stored within the first liquid storage container. The second terminal member comes into contact with liquid stored within the second liquid storage container. The circuit board comes into contact with the first terminal member and the second terminal member and relatively moves in the first direction with respect to the first liquid storage container.
    Type: Application
    Filed: April 10, 2023
    Publication date: October 19, 2023
    Inventors: HIDEAKI MATSUMURA, TSUYOSHI SAEKI, YURI MORI, KEN TAKENAGA, SHOTA ASADA, KOKI SHIMADA, DAIJU TAKEDA, HIROMASA TSUTSUMI, MINEYOSHI TOMIE
  • Publication number: 20230286282
    Abstract: A liquid discharge apparatus includes a liquid container and an operating member. The liquid container is configured to introduce liquid from a liquid introducing portion to an inside. The operating member is configured to rotate around a rotation shaft in a first direction from a first position for covering the liquid introducing portion to move to a second position for exposing the liquid introducing portion, and rotate in a second direction opposite to the first direction from the second position to move to the first position. The operating member includes a plug member and a covering portion. The plug member is retained to the operating member by a retaining member and configured to plug the liquid introducing portion at the first position. The covering portion is configured to cover the plug member in a direction intersecting with the first direction.
    Type: Application
    Filed: March 3, 2023
    Publication date: September 14, 2023
    Inventors: DAIJU TAKEDA, YURI MORI, TSUYOSHI SAEKI, HIDEAKI MATSUMURA, HIROMASA TSUTSUMI, SHOTA ASADA, KOKI SHIMADA, KEN TAKENAGA, MINEYOSHI TOMIE
  • Publication number: 20230182476
    Abstract: A liquid discharge apparatus includes a liquid discharge head to discharge liquid to a medium and a liquid storage container. The liquid storage container includes a reservoir portion, a liquid injection portion, a liquid holding unit, and a liquid guide portion. The reservoir portion reserves the liquid that is supplied to the liquid discharge head. The liquid injection portion allows a liquid injection container for injecting the liquid into the reservoir portion to be inserted in the liquid injection portion in a first direction. The liquid holding unit is provided at a position spaced apart from the liquid injection portion and is capable of holding the liquid. The liquid guide portion guides the liquid from the liquid injection portion to the liquid holding unit in a second direction intersecting with the first direction.
    Type: Application
    Filed: December 9, 2022
    Publication date: June 15, 2023
    Inventors: MINEYOSHI TOMIE, HIDEAKI MATSUMURA, YURI MORI, KEN TAKENAGA, DAIJU TAKEDA, KOKI SHIMADA, TSUYOSHI SAEKI, SHOTA ASADA, HIROMASA TSUTSUMI
  • Publication number: 20230094421
    Abstract: A recording apparatus includes a recording head having discharge orifices arranged on a discharge orifice surface, a cap, a wiper, and a moving unit that moves the wiper in a first direction. When the cap covers the discharge orifice surface, a first member is disposed at an inside wall of the cap at a position near a first side of a region having the discharge orifices, and a second member is disposed at another inside wall of the cap at a position near a second side of the region having the discharge orifices. The first side faces in a direction opposite to the first direction and the second side faces in the first direction. In a direction normal to the discharge orifice surface, a distance between the second member and the discharge orifice surface is smaller than a distance between the first member and the discharge orifice surface.
    Type: Application
    Filed: September 22, 2022
    Publication date: March 30, 2023
    Inventors: Hideaki Matsumura, Koya Iwakura, Tetsu Hamano, Nobuhiro Toki, Fumie Kameyama, Koki Shimada, Shota Asada, Ken Takenaga, Yusuke Tanaka, Yuta Araki, Taiji Maruyama, Atsushi Matsuyama, Yusuke Naratani, Kousuke Tanaka, Shimpei Fujisaki, Hiromasa Tsutsumi
  • Publication number: 20230060809
    Abstract: A recording apparatus includes a wiper, a recording head having a step portion and an ejection port surface supporting an ejection port, and a moving unit to relatively move the wiper and the recording head so that the wiper moves with respect to the recording head in relative movement in a first direction. In a first wiping, the relative movement causes the wiper to stop at or in vicinity of the step portion, or pass at or in the vicinity of the step portion at a speed lower than a speed at which the wiper wipes an area in which the ejection port is arranged. In a second wiping performed after the first wiping, the relative movement causes the wiper to pass through the step portion of the recording head and wipe the recording head in the first direction toward the area, and thereafter wipe the area.
    Type: Application
    Filed: August 22, 2022
    Publication date: March 2, 2023
    Inventors: Hiromasa Tsutsumi, Hideaki Matsumura, Shimpei Fujisaki
  • Publication number: 20220161563
    Abstract: A recording apparatus includes a recording head having an ejection port surface and a step portion, a blade to wipe the ejection port surface, and a moving unit. A plurality of ink ejection ports is arranged on the ejection port surface. The moving unit performs relative movement of the blade and the recording head by moving the blade or the recording head in a first direction to cause the blade to wipe a wiped surface including the ejection port surface, from the step portion to an area in which the plurality of ink ejection ports is arranged. The moving unit performs the relative movement so that a first relative velocity of the relative movement when the blade passes the step portion is higher than a second relative velocity of the relative movement when the blade, that has been in contact with the wiped surface, is separated from the wiped surface.
    Type: Application
    Filed: November 16, 2021
    Publication date: May 26, 2022
    Inventors: Shimpei Fujisaki, Hideaki Matsumura, Hiromasa Tsutsumi
  • Patent number: 8464470
    Abstract: Provided is a platform door device which makes it possible to reduce the length of time for a replacement operation when a panel-shaped portion of a door is damaged. The platform door device comprises a door, and a driving mechanism for moving the door forwardly and backwardly to close and open a gate on a platform. The driving mechanism includes a motor, a rotation body adapted to be rotated by the motor, and a driven body adapted to be driven according to the rotation of the rotation body so as to move the door, and the door has a panel-shaped main body, and a base segment detachably joined to the main body and attached to the driven body.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: June 18, 2013
    Assignee: Nabtesco Corporation
    Inventors: Satoshi Katagata, Kota Iwasaki, Masanori Furukawa, Takeshi Fuse, Hiromasa Tsutsumi
  • Publication number: 20120031006
    Abstract: Provided is a platform door device which makes it possible to reduce the length of time for a replacement operation when a panel-shaped portion of a door is damaged. The platform door device comprises a door, and a driving mechanism for moving the door forwardly and backwardly to close and open a gate on a platform. The driving mechanism includes a motor, a rotation body adapted to be rotated by the motor, and a driven body adapted to be driven according to the rotation of the rotation body so as to move the door, and the door has a panel-shaped main body, and a base segment detachably joined to the main body and attached to the driven body.
    Type: Application
    Filed: February 19, 2010
    Publication date: February 9, 2012
    Applicants: EAST JAPAN RAILWAY COMPANY, NABTESCO CORPORATION
    Inventors: Satoshi Katagata, Kota Iwasaki, Masanori Furukawa, Takeshi Fuse, Hiromasa Tsutsumi