Patents by Inventor Koji Morikoshi

Koji Morikoshi 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: 11660870
    Abstract: A liquid ejecting apparatus includes: a liquid ejecting head including a wiped surface that includes a first region including nozzles and a second region outside the first region; and a wiping mechanism that wipes the wiped surface, in which a first wiping operation in which the wiping mechanism moves relative to the wiped surface in a first direction to thereby wipe the first region and the second region is performed, and a second wiping operation in which, before the first wiping operation, the wiping mechanism moves relative to the wiped surface in a direction different from the first direction to thereby wipe a region including an upstream portion of the second region, the upstream portion being arranged, with respect to the first region, in a second direction opposite to the first direction, is performed.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: May 30, 2023
    Assignee: Seiko Epson Corporation
    Inventor: Koji Morikoshi
  • Publication number: 20220097384
    Abstract: A liquid ejecting apparatus includes: a liquid ejecting head including a wiped surface that includes a first region including nozzles and a second region outside the first region; and a wiping mechanism that wipes the wiped surface, in which a first wiping operation in which the wiping mechanism moves relative to the wiped surface in a first direction to thereby wipe the first region and the second region is performed, and a second wiping operation in which, before the first wiping operation, the wiping mechanism moves relative to the wiped surface in a direction different from the first direction to thereby wipe a region including an upstream portion of the second region, the upstream portion being arranged, with respect to the first region, in a second direction opposite to the first direction, is performed.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 31, 2022
    Inventor: Koji MORIKOSHI
  • Patent number: 9855754
    Abstract: A liquid discharging device includes a liquid discharging portion that discharges liquid supplied from a liquid container; a container mounting portion in which the liquid container is detachably mounted; a connection portion in which a flow path for supplying liquid within the liquid container mounted in the container mounting portion to the liquid discharging portion is formed; a sealing body that surrounds the connection portion in a plan view, and includes a contact surface in contact with the liquid container mounted in the container mounting portion; and a holding portion that suppresses movement of the sealing body by being installed to overlap the contact surface in a plan view, in which the holding portion is not in contact with the liquid container mounted in the container mounting portion.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: January 2, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Noriaki Okazawa, Koji Morikoshi
  • Patent number: 9855745
    Abstract: A liquid ejecting apparatus includes a liquid ejection unit including a liquid ejection head for ejecting liquid, a housing accommodating the liquid ejection unit, and a sealing section provided between the liquid ejection unit and the housing.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: January 2, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Koji Morikoshi, Haruki Kobayashi
  • Publication number: 20170120593
    Abstract: A liquid ejecting apparatus includes a liquid ejection unit including a liquid ejection head for ejecting liquid, a housing accommodating the liquid ejection unit, and a sealing section provided between the liquid ejection unit and the housing.
    Type: Application
    Filed: October 28, 2016
    Publication date: May 4, 2017
    Inventors: Koji MORIKOSHI, Haruki KOBAYASHI
  • Publication number: 20170057234
    Abstract: A liquid discharging device includes a liquid discharging portion that discharges liquid supplied from a liquid container; a container mounting portion in which the liquid container is detachably mounted; a connection portion in which a flow path for supplying liquid within the liquid container mounted in the container mounting portion to the liquid discharging portion is formed; a sealing body that surrounds the connection portion in a plan view, and includes a contact surface in contact with the liquid container mounted in the container mounting portion; and a holding portion that suppresses movement of the sealing body by being installed to overlap the contact surface in a plan view, in which the holding portion is not in contact with the liquid container mounted in the container mounting portion.
    Type: Application
    Filed: July 19, 2016
    Publication date: March 2, 2017
    Inventors: Noriaki OKAZAWA, Koji MORIKOSHI
  • Patent number: 9476507
    Abstract: A valve includes a seat having a through hole through which ink flows and a valve body that is configured to be in contact with the seat to close the through hole such that the valve is in a closed state and to be separate from the seat to open the through hole such that the valve is in an open state. At least one of the seat and the valve body is configured to move relative to the other of the seat and the valve body while the valve is in the closed state.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: October 25, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Fujio Akahane, Koji Morikoshi, Makoto Otsuki, Ryota Kinoshita
  • Publication number: 20160146354
    Abstract: A valve includes a seat having a through hole through which ink flows and a valve body that is configured to be in contact with the seat to close the through hole such that the valve is in a closed state and to be separate from the seat to open the through hole such that the valve is in an open state. At least one of the seat and the valve body is configured to move relative to the other of the seat and the valve body while the valve is in the closed state.
    Type: Application
    Filed: November 18, 2015
    Publication date: May 26, 2016
    Inventors: Fujio AKAHANE, Koji MORIKOSHI, Makoto OTSUKI, Ryota KINOSHITA
  • Patent number: 9073073
    Abstract: A pressure chamber in which an opening of a groove-shaped flow paths configuring a portion of a liquid flow path is formed by sealing with a film, a valve body which opens and closes a communication path communicating with the pressure chamber, and a pressure receiving member which is pressed by the film displaced to the pressure chamber side by negative pressure of the pressure chamber and is able to press the valve body in a direction where the valve body is valve opening state are included, and the valve body includes a flange section, a shaft section connected to the flange section and a seal member, and the seal member is formed in a shape of an annulus surrounding the shaft section.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: July 7, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Hiroki Miyajima, Koji Morikoshi
  • Patent number: 8317294
    Abstract: A liquid ejection apparatus includes: an ejection head that ejects a liquid from a nozzle; a cap that can seal an opening of the nozzle; an absorber disposed in the cap; a first ejection unit that allows to perform a first ejection operation toward the cap for maintenance of the nozzle; a suction unit that sucks the liquid from the cap; a second ejection unit that allows to perform a second ejection operation for replenishing the cap with a liquid before the suction, and a capping unit that covers the opening of the nozzle by the cap after the second ejection operation is performed.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: November 27, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Koji Morikoshi
  • Patent number: 8215752
    Abstract: Provided is a liquid ejecting head including a plurality of substrates that are at least partially bonded to one another with adhesives and form a liquid passage in which a liquid flows. The liquid passage includes a pressure-generating chamber that communicates to a nozzle opening through which the liquid is ejected. The adhesive being exposed to a wall surface of the passage on the upstream side of the pressure-generating chamber is composed of a first adhesive, and the adhesive being exposed to a wall surface of the downstream-side passage including the pressure-generating chamber is composed of a second adhesive. The second adhesive has affinity with the liquid higher than that of the first adhesive.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: July 10, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Koji Morikoshi
  • Patent number: 8201927
    Abstract: A fluid ejecting apparatus, contains: an ejecting head having a plurality of nozzles for ejecting a fluid and having a laminated structure in which a flow passage plate, in which a passage for the fluid is formed, is provided via an adhesive, in which the adhesive contains an adhesion resin, to which a hydrophilic function agent that gives hydrophilicity to the adhesive is added in a proportion of from 0.25 wt % to 5.0 wt %.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: June 19, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Koji Morikoshi, Takashi Akase, Yusuke Hirasawa
  • Patent number: 7909429
    Abstract: A liquid ejection apparatus includes: an ejection head that ejects a liquid from a nozzle; a cap that can seal an opening of the nozzle; an absorber that is disposed in the inside of the cap; a first ejection unit that allows to perform a first ejection toward the cap for maintenance of the nozzle; a suction unit that sucks the liquid from the cap; a second ejection unit that allows to perform a second ejection toward the cap for supplementing the liquid to the inside of the cap, before the suction; and a history managing unit that manages information on an accumulated ejection amount of a moisturizing component of the first ejection, wherein the second ejection unit allows to perform the second ejection on a condition based on the information.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: March 22, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Koji Morikoshi
  • Patent number: 7874658
    Abstract: A liquid ejection apparatus comprises a liquid cartridge for storing a liquid, a liquid ejection head for ejecting the liquid toward a target, a liquid supply path for guiding the liquid to the liquid ejection head from the liquid cartridge, and a capping device for drawing the liquid from the liquid ejection head. The liquid supply path comprises a plurality of wall surfaces, and a part of the wall surface is formed of a flexible member that is flexed by the inside-and-outside pressure difference of the liquid supply path. A pressure pump for adjusting the pressure of a fluid within the liquid supply path in the upstream side of the flexible member is provided.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: January 25, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Keiichiro Yoshino, Toshio Kumagai, Takeo Seino, Koji Morikoshi
  • Patent number: 7794041
    Abstract: The ink jet type printer is equipped with a recording head for ejecting ink including humectant and water from a nozzle formed on a nozzle forming surface and a cap which can seal the nozzle forming surface of the recording head. Further, the ink jet type printer is equipped with a control section for detecting an amount of the ink discharged into the cap from the nozzle, for calculating an available water amount which is a water amount except water absorbed by humectant in the ink in the cap based on the detected ink amount, and for performing maintenance control for forcibly discharging ink into the cap from the nozzle so that the amount of the ink discharged from the nozzle becomes smaller when the calculated available water amount is large than when small.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: September 14, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Takashi Akase, Koji Morikoshi, Keiji Matsumoto
  • Patent number: 7771006
    Abstract: A liquid ejecting apparatus includes a liquid ejecting head, a capping member sealing a nozzle forming face of the liquid ejecting head, and a suction unit applying a negative pressure to the nozzle forming face of the liquid ejecting head in a state that the nozzle forming face is sealed with the capping member so that the liquid in the liquid ejecting head is exhaust through a suction port of the capping member. The liquid ejecting head includes the nozzle forming face having a plurality of nozzle opening arrays, a plurality of pressure generating chambers communicating with the nozzle openings respectively, and a plurality of pressure generating members applying pressure to liquid in the pressure generating chambers respectively so as to eject the liquid from the nozzle openings. Each of the nozzle opening arrays has plural nozzle openings.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: August 10, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Koji Morikoshi
  • Publication number: 20100165050
    Abstract: Provided is a liquid ejecting head including a plurality of substrates that are at least partially bonded to one another with adhesives and form a liquid passage in which a liquid flows. The liquid passage includes a pressure-generating chamber that communicates to a nozzle opening through which the liquid is ejected. The adhesive being exposed to a wall surface of the passage on the upstream side of the pressure-generating chamber is composed of a first adhesive, and the adhesive being exposed to a wall surface of the downstream-side passage including the pressure-generating chamber is composed of a second adhesive. The second adhesive has affinity with the liquid higher than that of the first adhesive.
    Type: Application
    Filed: December 18, 2009
    Publication date: July 1, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Koji MORIKOSHI
  • Patent number: 7699449
    Abstract: A liquid ejection apparatus comprises a liquid cartridge for storing a liquid, a liquid ejection head for ejecting the liquid toward a target, a liquid supply path for guiding the liquid to the liquid ejection head from the liquid cartridge, and a capping device for drawing the liquid from the liquid ejection head. The liquid supply path comprises a plurality of wall surfaces, and a part of the wall surface is formed of a flexible member that is flexed by the inside-and-outside pressure difference of the liquid supply path. A pressure pump for adjusting the pressure of a fluid within the liquid supply path in the upstream side of the flexible member is provided.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: April 20, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Keiichiro Yoshino, Toshio Kumagai, Takeo Seino, Koji Morikoshi
  • Publication number: 20090244227
    Abstract: A fluid ejecting apparatus, contains: an ejecting head having a plurality of nozzles for ejecting a fluid and having a laminated structure in which a flow passage plate, in which a passage for the fluid is formed, is provided via an adhesive, in which the adhesive contains an adhesion resin, to which a lipophilic function agent that gives lipophilicity to the fluid is added in a proportion of from 0.25 wt % to 5.0 wt %.
    Type: Application
    Filed: March 26, 2009
    Publication date: October 1, 2009
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Koji Morikoshi, Takashi Akase, Yusuke Hirasawa
  • Patent number: 7387377
    Abstract: A liquid ejection apparatus comprises a liquid cartridge for storing a liquid, a liquid ejection head for ejecting the liquid toward a target, a liquid supply path for guiding the liquid to the liquid ejection head from the liquid cartridge, and a capping device for drawing the liquid from the liquid ejection head. The liquid supply path comprises a plurality of wall surfaces, and a part of the wall surface is formed of a flexible member that is flexed by the inside-and-outside pressure difference of the liquid supply path. A pressure pump for adjusting the pressure of a fluid within the liquid supply path in the upstream side of the flexible member is provided.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: June 17, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Keiichiro Yoshino, Toshio Kumagai, Takeo Seino, Koji Morikoshi, Taisuke Yamamoto