Patents by Inventor Izumi Nozawa

Izumi Nozawa 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: 10703104
    Abstract: A liquid ejecting apparatus includes: an ejection portion that ejects liquid onto a medium; a waste liquid container having a container that is configured to store a waste liquid discharged from the ejection portion; a housing that houses the ejection portion; and a humidity adjustment portion that adjusts humidity inside the housing. The waste liquid container is configured to store moisture discharged from the humidity adjustment portion.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: July 7, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Hiroyuki Nakamura, Hiroki Chino, Izumi Nozawa
  • Patent number: 10661574
    Abstract: A liquid ejecting apparatus includes a liquid ejecting head that ejects liquid through a nozzle, a supply flow path that supplies liquid from a liquid container containing liquid to the liquid ejecting head, a liquid chamber provided in a buffer chamber disposed in the supply flow path, the liquid chamber being configured to change in volume, a liquid feeding unit of a reversible type disposed in the supply flow path between the liquid container and the liquid chamber, a control portion that controls driving of the liquid feeding unit, and a suction unit that suctions liquid through the nozzle. The control portion controls the liquid feeding unit to perform reverse feeding of the liquid from the liquid chamber to the liquid container before the suction unit suctions the liquid through the nozzle.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: May 26, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Eiichiro Watanabe, Masaru Kumagai, Yukihiro Hanaoka, Izumi Nozawa
  • Patent number: 10647123
    Abstract: A method for manufacturing a refilled cartridge for performing refilling of printing material after use of a cartridge is provided. The cartridge includes a first case including a recess having a bottom surface and an opening, a flexible portion attached to the opening, a second case covering the open surface of the first case, a pressure receiving portion contacting the flexible portion, a chamber of variable capacity and a biasing member that generates negative pressure inside the chamber The printing material is refilled into the chamber so that two or more points across the biasing member on the pressure receiving portion do not contact the second case after refilling of the printing material is completed.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: May 12, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Tadahiro Mizutani, Hiroyuki Nakamura, Atsushi Kobayashi, Izumi Nozawa, Hidetoshi Kodama
  • Patent number: 10639904
    Abstract: A liquid ejecting apparatus includes a liquid ejecting portion configured to eject a liquid, a liquid supply flow path of which a downstream end portion is attachably/detachably connected to the liquid ejecting portion and through which the liquid is supplied from a liquid accommodating portion that accommodates the liquid to the liquid ejecting portion, an opening/closing valve capable of opening and closing the liquid supply flow path, an atmosphere communication path connected to the liquid supply flow path on a downstream side of the opening/closing valve, an atmosphere release valve capable of opening and closing the atmosphere communication path, a suction mechanism capable of sucking the liquid in the liquid ejecting portion, and a control device configured to control operations of the opening/closing valve, the atmosphere release valve, and the suction mechanism.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: May 5, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Hiroyuki Nakamura, Izumi Nozawa
  • Patent number: 10611158
    Abstract: A liquid ejecting apparatus includes a liquid ejecting head which performs a printing by ejecting liquid onto a medium from a nozzle, a wiping portion which wipes the liquid ejecting head by moving relative to the liquid ejecting head, a maintenance unit which performs a maintenance to forcibly discharge the liquid from the nozzle, and a preprocessing device which performs a preprocessing on the medium before the printing is performed, in which when the wiping portion and the liquid ejecting head are separated from each other in the wiping not accompanying the maintenance, the wiping portion is displaced in a direction away from the preprocessing device.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: April 7, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Hiroyuki Nakamura, Izumi Nozawa
  • Patent number: 10562312
    Abstract: A liquid ejecting apparatus includes a liquid ejecting head which ejects a liquid from a nozzle onto a medium, a liquid storage member which stores the liquid to be supplied to the liquid ejecting head, and a carriage on which the liquid ejecting head and the liquid storage member are installed and which is capable of moving on a movement path. The liquid storage member includes a liquid filling port which is disposed above the liquid ejecting head and is for filling the liquid. The liquid filling port is provided at a position which does not overlap with a nozzle forming surface in which the nozzle is formed in plan view from above.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: February 18, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Naomi Kimura, Shoma Kudo, Izumi Nozawa
  • Patent number: 10518535
    Abstract: A liquid ejecting apparatus includes a liquid ejecting portion that has a nozzle and an opening surface in which the nozzle opens and that ejects a liquid from the nozzle toward a medium that is transported along a transport path, a wiper member that wipes the liquid ejecting portion while moving, a guide that guides movement of the wiper member, and a cap that has an opening portion and that is movable between a capping position at which the cap contacts the liquid ejecting portion so that the opening portion surrounds the nozzle and an open position at which the cap is apart from the liquid ejecting portion. When the cap is at the open position vertically below the guide, the opening portion is at least partially covered by the guide.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: December 31, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Masaru Kobashi, Izumi Nozawa
  • Patent number: 10434779
    Abstract: A liquid ejecting apparatus includes: a liquid ejecting head that ejects liquid; a first tank that stores the liquid to be supplied to the liquid ejecting head; a second tank that receives the liquid that was not ejected from the liquid ejecting head; circulation paths through which the liquid circulates among the first tank, the liquid ejecting head, and the second tank; a pump that feeds the liquid from the second tank to the first tank; a first supply flow path that communicates between the first tank and a first main tank that is located above the first tank and stores the liquid; a second supply flow path that communicates between the first main tank and the second tank; a first opening/closing valve that can open and close the first supply flow path; and a second opening/closing valve that can open and close the second supply flow path.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: October 8, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Hiroyuki Nakamura, Izumi Nozawa
  • Publication number: 20190283441
    Abstract: A liquid ejecting apparatus includes a liquid ejecting head that ejects liquid through a nozzle, a supply flow path that supplies liquid from a liquid container containing liquid to the liquid ejecting head, a liquid chamber provided in a buffer chamber disposed in the supply flow path, the liquid chamber being configured to change in volume, a liquid feeding unit of a reversible type disposed in the supply flow path between the liquid container and the liquid chamber, a control portion that controls driving of the liquid feeding unit, and a suction unit that suctions liquid through the nozzle. The control portion controls the liquid feeding unit to perform reverse feeding of the liquid from the liquid chamber to the liquid container before the suction unit suctions the liquid through the nozzle.
    Type: Application
    Filed: March 13, 2019
    Publication date: September 19, 2019
    Inventors: Eiichiro WATANABE, Masaru KUMAGAI, Yukihiro HANAOKA, Izumi NOZAWA
  • Patent number: 10384454
    Abstract: A method for manufacturing a refilled cartridge is provided for performing refilling of printing material after use of a cartridge comprising a chamber of variable capacity, a detection section that optically detects the printing material inside the chamber, an air introduction port that introduces outside air into the chamber, a valve section that opens and closes the air introduction port according to the negative pressure inside the chamber, and a supply port that supplies the printing material within the chamber to the outside. With this manufacturing method, the printing material is refilled into the chamber so that a designated volume of air exists after refilling of the printing material is completed.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: August 20, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Tadahiro Mizutani, Hiroyuki Nakamura, Atsushi Kobayashi, Izumi Nozawa, Hidetoshi Kodama
  • Publication number: 20190240986
    Abstract: A liquid ejecting apparatus includes a liquid ejecting portion configured to eject a liquid, a liquid supply flow path of which a downstream end portion is attachably/detachably connected to the liquid ejecting portion and through which the liquid is supplied from a liquid accommodating portion that accommodates the liquid to the liquid ejecting portion, an opening/closing valve capable of opening and closing the liquid supply flow path, an atmosphere communication path connected to the liquid supply flow path on a downstream side of the opening/closing valve, an atmosphere release valve capable of opening and closing the atmosphere communication path, a suction mechanism capable of sucking the liquid in the liquid ejecting portion, and a control device configured to control operations of the opening/closing valve, the atmosphere release valve, and the suction mechanism.
    Type: Application
    Filed: February 7, 2019
    Publication date: August 8, 2019
    Inventors: Hiroyuki NAKAMURA, Izumi NOZAWA
  • Patent number: 10328719
    Abstract: A liquid ejecting apparatus includes a medium supporting unit which supports a medium that is transported along a transport path; a liquid ejecting head which includes a nozzle for ejecting liquid onto a medium that is supported by the medium supporting unit; a heating part which heats the medium; and a space forming member which forms a closed space at which the nozzle is opened. The space forming member is configured to move between a space forming position in which the space forming member is disposed when forming the closed space, and a retracted position which is further separated from the heating part than the space forming position.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: June 25, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Masaru Kobashi, Izumi Nozawa
  • Publication number: 20190176474
    Abstract: A liquid ejecting apparatus includes: an ejection portion that ejects liquid onto a medium; a waste liquid container having a container that is configured to store a waste liquid discharged from the ejection portion; a housing that houses the ejection portion; and a humidity adjustment portion that adjusts humidity inside the housing. The waste liquid container is configured to store moisture discharged from the humidity adjustment portion.
    Type: Application
    Filed: December 10, 2018
    Publication date: June 13, 2019
    Inventors: Hiroyuki NAKAMURA, Hiroki CHINO, Izumi NOZAWA
  • Publication number: 20190105903
    Abstract: A liquid ejecting apparatus includes a liquid ejecting head which ejects a liquid from a nozzle onto a medium, a liquid storage member which stores the liquid to be supplied to the liquid ejecting head, and a carriage on which the liquid ejecting head and the liquid storage member are installed and which is capable of moving on a movement path. The liquid storage member includes a liquid filling port which is disposed above the liquid ejecting head and is for filling the liquid. The liquid filling port is provided at a position which does not overlap with a nozzle forming surface in which the nozzle is formed in plan view from above.
    Type: Application
    Filed: October 5, 2018
    Publication date: April 11, 2019
    Inventors: Naomi KIMURA, Shoma KUDO, Izumi NOZAWA
  • Patent number: 10214018
    Abstract: A printing material supply system includes a printing device and a cartridge. The printing device has a cartridge mounting structure. The cartridge is removably attached to the cartridge mounting structure. The cartridge mounting structure has a device-side terminal, a lever, a first device-side locking element and a second device-side locking element. The device-side terminal is configured to contact with a cartridge-side terminal. The first device-side locking element is configured as part of the lever. The second device-side locking element is configured to engage with a second locking surface of a second cartridge-side locking element. The cartridge-side terminal has a cartridge-side contact portion configured to be in contact with the device-side terminal. The cartridge-side contact portion is provided on the negative Z-axis side of the second locking surface.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: February 26, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Izumi Nozawa, Hidetoshi Kodama, Tadahiro Mizutani, Kazutoshi Matsuzaki, Kazumasa Harada, Satoshi Nakata, Hidetaka Kawata
  • Patent number: 10207515
    Abstract: A liquid ejecting apparatus includes a first tank that stores liquid to be supplied to a liquid ejecting head, a second tank that receives liquid that has not been ejected by the liquid ejecting head, a circulation path that circulates liquid. The second tank separately has a first opening that communicates with a second pressure adjusting unit that can depressurize the second tank and a second opening that communicates with a second atmosphere opening valve that switches the second tank between a sealed state and an atmosphere opening state. The second opening is arranged at a position lower than the first opening in a vertical direction.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: February 19, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Hiroyuki Nakamura, Izumi Nozawa
  • Publication number: 20190039379
    Abstract: A liquid ejecting apparatus includes a liquid ejecting head which performs a printing by ejecting liquid onto a medium from a nozzle, a wiping portion which wipes the liquid ejecting head by moving relative to the liquid ejecting head, a maintenance unit which performs a maintenance to forcibly discharge the liquid from the nozzle, and a preprocessing device which performs a preprocessing on the medium before the printing is performed, in which when the wiping portion and the liquid ejecting head are separated from each other in the wiping not accompanying the maintenance, the wiping portion is displaced in a direction away from the preprocessing device.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 7, 2019
    Inventors: Hiroyuki NAKAMURA, Izumi NOZAWA
  • Publication number: 20180250946
    Abstract: A liquid ejecting apparatus includes a first tank that stores liquid to be supplied to a liquid ejecting head, a second tank that receives liquid that has not been ejected by the liquid ejecting head, a circulation path that circulates liquid. The second tank separately has a first opening that communicates with a second pressure adjusting unit that can depressurize the second tank and a second opening that communicates with a second atmosphere opening valve that switches the second tank between a sealed state and an atmosphere opening state. The second opening is arranged at a position lower than the first opening in a vertical direction.
    Type: Application
    Filed: March 1, 2018
    Publication date: September 6, 2018
    Inventors: Hiroyuki NAKAMURA, Izumi NOZAWA
  • Publication number: 20180244046
    Abstract: A liquid ejecting apparatus includes: a liquid ejecting head that ejects liquid; a first tank that stores the liquid to be supplied to the liquid ejecting head; a second tank that receives the liquid that was not ejected from the liquid ejecting head; circulation paths through which the liquid circulates among the first tank, the liquid ejecting head, and the second tank; a pump that feeds the liquid from the second tank to the first tank; a first supply flow path that communicates between the first tank and a first main tank that is located above the first tank and stores the liquid; a second supply flow path that communicates between the first main tank and the second tank; a first opening/closing valve that can open and close the first supply flow path; and a second opening/closing valve that can open and close the second supply flow path.
    Type: Application
    Filed: February 21, 2018
    Publication date: August 30, 2018
    Inventors: Hiroyuki NAKAMURA, Izumi NOZAWA
  • Publication number: 20180201013
    Abstract: The liquid ejecting apparatus includes a liquid ejecting head configured to eject liquid from the nozzles, a supply flow path configured to supply liquid to the liquid ejecting head, and a pressurizing mechanism that has a liquid chamber disposed in the middle of the supply flow path and a pressure-receiving portion constituting a portion of a wall of the liquid chamber. The pressurizing mechanism is configured to pressurize a region downstream of the liquid chamber when the pressure-receiving portion receives an external force, The liquid chamber is arranged side by side with the liquid ejecting head in a state where the pressure-receiving portion is positioned on an opposite side of the liquid ejecting head when viewed in plan view from above.
    Type: Application
    Filed: December 19, 2017
    Publication date: July 19, 2018
    Inventors: Takuya OKINA, Izumi NOZAWA, Eiichiro WATANABE, Fumiya TAKINO