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).
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Patent number: 11660870Abstract: 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: GrantFiled: September 22, 2021Date of Patent: May 30, 2023Assignee: Seiko Epson CorporationInventor: Koji Morikoshi
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Publication number: 20220097384Abstract: 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: ApplicationFiled: September 22, 2021Publication date: March 31, 2022Inventor: Koji MORIKOSHI
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Patent number: 9855754Abstract: 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: GrantFiled: July 19, 2016Date of Patent: January 2, 2018Assignee: Seiko Epson CorporationInventors: Noriaki Okazawa, Koji Morikoshi
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Patent number: 9855745Abstract: 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: GrantFiled: October 28, 2016Date of Patent: January 2, 2018Assignee: Seiko Epson CorporationInventors: Koji Morikoshi, Haruki Kobayashi
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Publication number: 20170120593Abstract: 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: ApplicationFiled: October 28, 2016Publication date: May 4, 2017Inventors: Koji MORIKOSHI, Haruki KOBAYASHI
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Publication number: 20170057234Abstract: 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: ApplicationFiled: July 19, 2016Publication date: March 2, 2017Inventors: Noriaki OKAZAWA, Koji MORIKOSHI
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Patent number: 9476507Abstract: 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: GrantFiled: November 18, 2015Date of Patent: October 25, 2016Assignee: Seiko Epson CorporationInventors: Fujio Akahane, Koji Morikoshi, Makoto Otsuki, Ryota Kinoshita
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Publication number: 20160146354Abstract: 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: ApplicationFiled: November 18, 2015Publication date: May 26, 2016Inventors: Fujio AKAHANE, Koji MORIKOSHI, Makoto OTSUKI, Ryota KINOSHITA
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Patent number: 9073073Abstract: 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: GrantFiled: December 26, 2012Date of Patent: July 7, 2015Assignee: Seiko Epson CorporationInventors: Hiroki Miyajima, Koji Morikoshi
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Patent number: 8317294Abstract: 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: GrantFiled: January 31, 2007Date of Patent: November 27, 2012Assignee: Seiko Epson CorporationInventor: Koji Morikoshi
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Patent number: 8215752Abstract: 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: GrantFiled: December 18, 2009Date of Patent: July 10, 2012Assignee: Seiko Epson CorporationInventor: Koji Morikoshi
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Patent number: 8201927Abstract: 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: GrantFiled: March 26, 2009Date of Patent: June 19, 2012Assignee: Seiko Epson CorporationInventors: Koji Morikoshi, Takashi Akase, Yusuke Hirasawa
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Patent number: 7909429Abstract: 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: GrantFiled: February 16, 2007Date of Patent: March 22, 2011Assignee: Seiko Epson CorporationInventor: Koji Morikoshi
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Patent number: 7874658Abstract: 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: GrantFiled: February 8, 2008Date of Patent: January 25, 2011Assignee: Seiko Epson CorporationInventors: Keiichiro Yoshino, Toshio Kumagai, Takeo Seino, Koji Morikoshi
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Patent number: 7794041Abstract: 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: GrantFiled: March 22, 2007Date of Patent: September 14, 2010Assignee: Seiko Epson CorporationInventors: Takashi Akase, Koji Morikoshi, Keiji Matsumoto
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Patent number: 7771006Abstract: 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: GrantFiled: September 19, 2007Date of Patent: August 10, 2010Assignee: Seiko Epson CorporationInventor: Koji Morikoshi
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Publication number: 20100165050Abstract: 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: ApplicationFiled: December 18, 2009Publication date: July 1, 2010Applicant: SEIKO EPSON CORPORATIONInventor: Koji MORIKOSHI
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Patent number: 7699449Abstract: 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: GrantFiled: June 23, 2005Date of Patent: April 20, 2010Assignee: Seiko Epson CorporationInventors: Keiichiro Yoshino, Toshio Kumagai, Takeo Seino, Koji Morikoshi
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Publication number: 20090244227Abstract: 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: ApplicationFiled: March 26, 2009Publication date: October 1, 2009Applicant: SEIKO EPSON CORPORATIONInventors: Koji Morikoshi, Takashi Akase, Yusuke Hirasawa
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Patent number: 7387377Abstract: 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: GrantFiled: September 14, 2005Date of Patent: June 17, 2008Assignee: Seiko Epson CorporationInventors: Keiichiro Yoshino, Toshio Kumagai, Takeo Seino, Koji Morikoshi, Taisuke Yamamoto