Patents by Inventor Mikio Ogawa

Mikio Ogawa 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: 20250108617
    Abstract: A liquid discharge device includes: a head configured to discharge a liquid from a nozzle opening on a nozzle surface; a wiper configured to be brought into contact with the nozzle surface at a front surface of the wiper and be movable relative to the head in a first direction; a support portion configured to support at least a rear surface of the wiper and be movable relative to the wiper in a second direction intersecting the nozzle surface and the first direction; and a controller configured to: acquire an elapsed time from when the liquid is discharged from the nozzle; determine, based on the elapsed time, a first support position which is a position of the support portion in the second direction; and position the support portion at the determined first support position, and move the wiper relative to the head in the first direction.
    Type: Application
    Filed: September 26, 2024
    Publication date: April 3, 2025
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Mikio OGAWA, Hiroyuki TANAKA, Ryuji KATO
  • Patent number: 12263680
    Abstract: There is provided a liquid discharge apparatus including a head configured to eject a liquid from nozzles being open in a nozzle surface, a liquid absorbing wiper, and a support supporting the liquid absorbing wiper. The supporter is movable relative to the head, between a first position where the liquid absorbing wiper is in contact with the nozzle surface, and a second position where the liquid absorbing wiper is away from the nozzle surface, the supporter has a flow channel for a liquid cleaner to flow therethrough, and the liquid absorbing wiper sucks in the liquid cleaner from below by way of contact with the liquid cleaner flowing in the flow channel.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: April 1, 2025
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Mikio Ogawa, Rikuto Mitoka, Motoki Yamada
  • Publication number: 20250058564
    Abstract: A liquid discharge apparatus includes: a head having a nozzle surface in which a nozzle is opened; a wiper configured to come into contact with the nozzle surface and move relative to the head; and a controller. The controller is configured to execute: a viscosity determination process of determining viscosity of liquid adhering to the nozzle surface; and a wiping process in which the wiper comes into contact with the nozzle surface and moves relative to the head. In a case in which the determined viscosity is lower than first viscosity indicating that the liquid is substantially solidified, a pressing pressure when the wiper comes into contact with the nozzle surface in the wiping process is set to be larger than a stress due to viscous friction of the liquid on the nozzle surface.
    Type: Application
    Filed: August 15, 2024
    Publication date: February 20, 2025
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Mikio OGAWA, Hiroyuki TANAKA, Ryuji KATO
  • Publication number: 20240391241
    Abstract: There is provided an observing apparatus including: a first member having a first surface; a wiper configured to move relative to the first member and wipe up a liquid adhered to the first surface; and a camera configured to pick up an image of a process of wiping up the liquid adhered to the first surface with the wiper from a beginning of the wiping up of the liquid to an end of the wiping up of the liquid.
    Type: Application
    Filed: May 24, 2024
    Publication date: November 28, 2024
    Inventors: RYUJI KATO, MIKIO OGAWA, HIROYUKI TANAKA
  • Publication number: 20240391240
    Abstract: A liquid discharge apparatus includes: a head having a nozzle surface in which a nozzle is opened; a wiper configured to come into contact with the nozzle surface and move relative to the head; and a controller. The controller is configured to obtain elapsed time from an end of a wiping process in which the wiper comes into contact with the nozzle surface and moves relative to the head, a moving speed of the wiper, and a pressing pressure of the wiper to the nozzle surface, execute an estimation process of estimating whether liquid remains on the nozzle surface after the wiping process is performed, based on the elapsed time, the moving speed, and the pressing pressure, and change at least one of the elapsed time, the moving speed, and the pressing pressure when the liquid is estimated to remain in the estimation process.
    Type: Application
    Filed: May 23, 2024
    Publication date: November 28, 2024
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Ryuji KATO, Mikio OGAWA, Hiroyuki TANAKA
  • Publication number: 20240326441
    Abstract: There is provided a liquid ejecting apparatus including: a head having a nozzle surface in which a nozzle is opened; a wiper configured to move relative to the head in a state that the wiper is in contact with the nozzle surface; and a controller. The controller is configured to move the wiper relative to the head based on a moving velocity determined based on parameters including first parameter according to a receding contact angle of a liquid to be discharged from the nozzle and second parameter according to a viscosity of the liquid.
    Type: Application
    Filed: December 19, 2023
    Publication date: October 3, 2024
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: MIKIO OGAWA, HIROYUKI TANAKA, RYUJI KATO
  • Patent number: 11845285
    Abstract: Aspects of a disclosure relates to a liquid discharge device enables previously disabled liquid discharge through a head after a cartridge including a first liquid chamber is replaced and before the liquid level in a second liquid chamber of a tank reaches a predetermined level or higher. Another aspect of the disclosure relates to a liquid discharge device that deactivates an alarm after a cartridge including a first liquid chamber is replaced and before the liquid level in a second liquid reaches a predetermined level or higher.
    Type: Grant
    Filed: February 2, 2023
    Date of Patent: December 19, 2023
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kenta Horade, Mikio Ogawa, Toshiro Ueda
  • Patent number: 11813870
    Abstract: There is provided a liquid discharge apparatus including: a head including a nozzle surface; a wiper including a blade and a blade holder; a posture changer configured to change a posture of the blade to a first posture in which the blade makes contact with the nozzle surface and to a second posture which is different from the first posture; and a cleaner including a cleaning surface intersecting the nozzle surface. The blade in the first posture is configured to move in a first sliding direction relatively with respect to the head in a state in which the blade makes contact with the nozzle surface. The blade in the second posture is configured to move in a second sliding direction intersecting the first sliding direction relatively with respect to the cleaner in a state in which the blade makes contact with the cleaning surface.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: November 14, 2023
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Mikio Ogawa
  • Publication number: 20230311518
    Abstract: There is provided a liquid container including: a pouch and a case. The pouch includes a flexible bag and a spout with a first opening. The case includes a tank to store a liquid flowed through the second opening. The spout is fitted into the case, and the bag is positioned in the tank.
    Type: Application
    Filed: March 15, 2023
    Publication date: October 5, 2023
    Inventors: Mikio OGAWA, Rie JOBOJI, Hideki HAYASHI
  • Publication number: 20230286270
    Abstract: There is provided a liquid discharge apparatus including: a head having a nozzle surface and a nozzle opened in the nozzle surface; a cap configured to make contact with the nozzle surface at a covering position and configured to be separated away from the nozzle surface at a retreating position; a liquid channel configured to communicate an internal space of the cap and outside of the cap to each other; a lid member configured to make contact with the cap located at the retreating position so as to seal the internal space of the cap; and a heater which is positioned above the cap located at the retreating position. The lid member is positioned between the heater and the cap in an up-down direction in a state that the lid member seals the internal space of the cap.
    Type: Application
    Filed: March 7, 2023
    Publication date: September 14, 2023
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: MIKIO OGAWA, RIKUTO MITOKA, MOTOKI YAMADA, KIYOTO MIZOGUCHI
  • Publication number: 20230271419
    Abstract: There is provided a liquid discharge apparatus including a head configured to eject a liquid from nozzles being open in a nozzle surface, a liquid absorbing wiper, and a support supporting the liquid absorbing wiper. The supporter is movable relative to the head, between a first position where the liquid absorbing wiper is in contact with the nozzle surface, and a second position where the liquid absorbing wiper is away from the nozzle surface, the supporter has a flow channel for a liquid cleaner to flow therethrough, and the liquid absorbing wiper sucks in the liquid cleaner from below by way of contact with the liquid cleaner flowing in the flow channel.
    Type: Application
    Filed: December 21, 2022
    Publication date: August 31, 2023
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: MIKIO OGAWA, RIKUTO MITOKA, MOTOKI YAMADA
  • Publication number: 20230173816
    Abstract: Aspects of a disclosure relates to a liquid discharge device enables previously disabled liquid discharge through a head after a cartridge including a first liquid chamber is replaced and before the liquid level in a second liquid chamber of a tank reaches a predetermined level or higher. Another aspect of the disclosure relates to a liquid discharge device that deactivates an alarm after a cartridge including a first liquid chamber is replaced and before the liquid level in a second liquid reaches a predetermined level or higher.
    Type: Application
    Filed: February 2, 2023
    Publication date: June 8, 2023
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kenta Horade, Mikio Ogawa, Toshiro Ueda
  • Patent number: 11571906
    Abstract: Aspects of a disclosure relates to a liquid discharge device enables previously disabled liquid discharge through a head after a cartridge including a first liquid chamber is replaced and before the liquid level in a second liquid chamber of a tank reaches a predetermined level or higher. Another aspects of the disclosure relates to a liquid discharge device that deactivates an alarm after a cartridge including a first liquid chamber is replaced and before the liquid level in a second liquid reaches a predetermined level or higher.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: February 7, 2023
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kenta Horade, Mikio Ogawa, Toshiro Ueda
  • Patent number: 11345175
    Abstract: A liquid discharge apparatus is provided, which comprises a head, a maintenance mechanism which has a cap and which is movable to a maintenance position and a waiting position, a first support mechanism which supports the maintenance mechanism disposed at the maintenance position, and a second support mechanism which supports the maintenance mechanism disposed at the waiting position. One of the first and second support mechanisms is relatively movable to a first position and a second position with respect to the other. When the one of them is disposed at the first position, both of them is configured to support the maintenance mechanism simultaneously. When the one of them is disposed at the second position, the other of them is separated away from the maintenance mechanism.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: May 31, 2022
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Mikio Ogawa, Mitsugi Tanaka
  • Patent number: 11247458
    Abstract: A liquid discharge apparatus includes a case receiving a cartridge, a tank, a head, and a controller to: when the cartridge is installed in the case, calculate an outflow amount Qc based on heights Hc, Hs and flow path resistances; read the amounts Vc, Vs from a memory; subtract the outflow amount Qc from the read liquid amount Vc to calculate new liquid amount Vc; add the outflow amount Qc to the read liquid amount Vs to calculate new liquid amount Vs; store the calculated liquid amounts Vc, Vs in the memory; after a time period from at the time the calculated liquid amounts Vc, Vs stored elapses, again calculate the outflow amount Qc and the liquid amounts Vc, Vs and store the calculated liquid amounts Vc, Vs in the memory.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: February 15, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yuki Takagi, Mikio Ogawa, Toshiro Ueda
  • Patent number: 11247457
    Abstract: A liquid discharge apparatus is configured to activate a first notification in a case where a liquid level of a tank is less than a threshold. In a case where a cartridge is installed after activating the first notification, a controller determines outflow amount Vcs of the liquid flowing into the tank based on the liquid amount of the installed cartridge, and controls a notification device based on the determined outflow amount Vcs.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: February 15, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kenta Horade, Mikio Ogawa, Toshiro Ueda
  • Publication number: 20210347175
    Abstract: There is provided a liquid discharge apparatus including: a head including a nozzle surface; a wiper including a blade and a blade holder; a posture changer configured to change a posture of the blade to a first posture in which the blade makes contact with the nozzle surface and to a second posture which is different from the first posture; and a cleaner including a cleaning surface intersecting the nozzle surface. The blade in the first posture is configured to move in a first sliding direction relatively with respect to the head in a state in which the blade makes contact with the nozzle surface. The blade in the second posture is configured to move in a second sliding direction intersecting the first sliding direction relatively with respect to the cleaner in a state in which the blade makes contact with the cleaning surface.
    Type: Application
    Filed: July 22, 2021
    Publication date: November 11, 2021
    Inventor: Mikio OGAWA
  • Publication number: 20210347179
    Abstract: Aspects of a disclosure relates to a liquid discharge device enables previously disabled liquid discharge through a head after a cartridge including a first liquid chamber is replaced and before the liquid level in a second liquid chamber of a tank reaches a predetermined level or higher. Another aspects of the disclosure relates to a liquid discharge device that deactivates an alarm after a cartridge including a first liquid chamber is replaced and before the liquid level in a second liquid reaches a predetermined level or higher.
    Type: Application
    Filed: July 23, 2021
    Publication date: November 11, 2021
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kenta HORADE, Mikio OGAWA, Toshiro UEDA
  • Patent number: 11072181
    Abstract: Aspects of a disclosure relates to a liquid discharge device enables previously disabled liquid discharge through a head after a cartridge including a first liquid chamber is replaced and before the liquid level in a second liquid chamber of a tank reaches a predetermined level or higher. Another aspects of the disclosure relates to a liquid discharge device that deactivates an alarm after a cartridge including a first liquid chamber is replaced and before the liquid level in a second liquid reaches a predetermined level or higher.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: July 27, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kenta Horade, Mikio Ogawa, Toshiro Ueda
  • Patent number: RE49175
    Abstract: According to one embodiment, a semiconductor device includes a first voltage generator, a second voltage generator, a first MOS transistor, and a controller. The first voltage generator outputs a first voltage to a first node. The second voltage generator outputs a second voltage to a second node. The first MOS transistor is capable of short-circuiting the first node and second node. The controller performs a control operation to short-circuit the first node and second node by turning on the first MOS transistor. The controller controls a period in which the first MOS transistor is kept in an on state based on time.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: August 16, 2022
    Assignee: Kioxia Corporation
    Inventors: Takeshi Nakano, Mikio Ogawa