Patents by Inventor Masaru Kobashi
Masaru Kobashi 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: 11529811Abstract: A liquid ejecting apparatus includes a liquid ejecting head that ejects liquid and an attachment portion to which a liquid container that stores the liquid supplied to the liquid ejecting head is detachably attached. The attachment portion includes a liquid inlet portion that is coupled to a liquid outlet provided in the liquid container, and an urging mechanism that urges the liquid container in a direction opposite to an attaching direction in which the liquid container is attached to the attachment portion. The urging mechanism includes an elastic member that is in close contact with the liquid container attached to the attachment portion and that is provided below the liquid inlet portion in a direction of gravity.Type: GrantFiled: December 4, 2020Date of Patent: December 20, 2022Assignee: SEIKO EPSON CORPORATIONInventors: Hiroyuki Nakamura, Masaru Kobashi
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Patent number: 11279134Abstract: A liquid ejection apparatus includes a liquid ejection head configured to eject liquid from a plurality of nozzles to a medium and a plurality of caps configured to cover a plurality of nozzle groups. The plurality of caps includes a first cap group covering a first nozzle group positioned near the center of the liquid ejection head among the plurality of nozzle groups and a second cap group and a third cap group provided at positions sandwiching the first cap group in the width direction. The liquid ejection head is configured to execute a first idle ejection for ejecting liquid from the plurality of nozzles constituting the plurality of nozzle groups to the plurality of caps and a second idle ejection for ejecting the liquid from the plurality of nozzles constituting the second nozzle group and the third nozzle group to the second cap group and the third cap group.Type: GrantFiled: June 25, 2020Date of Patent: March 22, 2022Assignee: Seiko Epson CorporationInventors: Masaru Kobashi, Tomoyoshi Hirabayashi
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Publication number: 20210170756Abstract: A liquid ejecting apparatus includes a liquid ejecting head that ejects liquid and an attachment portion to which a liquid container that stores the liquid supplied to the liquid ejecting head is detachably attached. The attachment portion includes a liquid inlet portion that is coupled to a liquid outlet provided in the liquid container, and an urging mechanism that urges the liquid container in a direction opposite to an attaching direction in which the liquid container is attached to the attachment portion. The urging mechanism includes an elastic member that is in close contact with the liquid container attached to the attachment portion and that is provided below the liquid inlet portion in a direction of gravity.Type: ApplicationFiled: December 4, 2020Publication date: June 10, 2021Inventors: Hiroyuki NAKAMURA, Masaru KOBASHI
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Publication number: 20200406621Abstract: A liquid ejection apparatus includes a liquid ejection head configured to eject liquid from a plurality of nozzles to a medium and a plurality of caps configured to cover a plurality of nozzle groups. The plurality of caps includes a first cap group covering a first nozzle group positioned near the center of the liquid ejection head among the plurality of nozzle groups and a second cap group and a third cap group provided at positions sandwiching the first cap group in the width direction. The liquid ejection head is configured to execute a first idle ejection for ejecting liquid from the plurality of nozzles constituting the plurality of nozzle groups to the plurality of caps and a second idle ejection for ejecting the liquid from the plurality of nozzles constituting the second nozzle group and the third nozzle group to the second cap group and the third cap group.Type: ApplicationFiled: June 25, 2020Publication date: December 31, 2020Inventors: Masaru KOBASHI, Tomoyoshi HIRABAYASHI
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Patent number: 10518535Abstract: 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: GrantFiled: October 13, 2017Date of Patent: December 31, 2019Assignee: Seiko Epson CorporationInventors: Masaru Kobashi, Izumi Nozawa
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Patent number: 10391773Abstract: A liquid ejecting apparatus includes a liquid ejecting head that has a nozzle to eject a liquid and a plurality of surfaces including a nozzle surface in which the nozzle opens, a wiping unit including a first wiping unit for wiping the nozzle surface and a second wiping unit for wiping a surface different from the nozzle surface of the liquid ejecting head, a moving mechanism to relatively move the wiping unit and the liquid ejecting head, and a cleaning member including a cleaning section for cleaning the first wiping unit and the second wiping unit.Type: GrantFiled: March 2, 2017Date of Patent: August 27, 2019Assignee: Seiko Epson CorporationInventors: Yuki Hirabayashi, Kazuhiko Sato, Masaru Kobashi
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Patent number: 10328719Abstract: 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: GrantFiled: June 2, 2016Date of Patent: June 25, 2019Assignee: Seiko Epson CorporationInventors: Masaru Kobashi, Izumi Nozawa
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Publication number: 20180194139Abstract: A liquid ejecting apparatus includes a liquid ejecting head having a nozzle which ejects a liquid onto a medium, a wiping member that wipes the liquid which has adhered to a nozzle forming surface of the liquid ejecting head, a support member that supports the wiping member, moves the wiping member relative to the liquid ejecting head, and has a receiving portion receiving the liquid wiped by the wiping member, and a connection flow path that is capable of being connected to the support member, wherein the receiving portion and the connection flow path communicate with each other with movement of the support member.Type: ApplicationFiled: March 9, 2018Publication date: July 12, 2018Inventors: Masaru KOBASHI, Masahisa NAWANO, Kazuhiko SATO
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Publication number: 20180194138Abstract: A liquid ejecting apparatus includes a liquid ejecting head having a nozzle which ejects a liquid onto a medium, a wiping member that wipes the liquid which has adhered to a nozzle forming surface of the liquid ejecting head, a support member that supports the wiping member, moves the wiping member relative to the liquid ejecting head, and has a receiving portion receiving the liquid wiped by the wiping member, and a connection flow path that is capable of being connected to the support member, wherein the receiving portion and the connection flow path communicate with each other with movement of the support member.Type: ApplicationFiled: March 9, 2018Publication date: July 12, 2018Inventors: Masaru KOBASHI, Masahisa NAWANO, Kazuhiko SATO
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Publication number: 20180111376Abstract: 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: ApplicationFiled: October 13, 2017Publication date: April 26, 2018Inventors: Masaru KOBASHI, Izumi NOZAWA
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Publication number: 20170253045Abstract: A liquid ejecting apparatus includes a liquid ejecting head that has a nozzle to eject a liquid and a plurality of surfaces including a nozzle surface in which the nozzle opens, a wiping unit including a first wiping unit for wiping the nozzle surface and a second wiping unit for wiping a surface different from the nozzle surface of the liquid ejecting head, a moving mechanism to relatively move the wiping unit and the liquid ejecting head, and a cleaning member including a cleaning section for cleaning the first wiping unit and the second wiping unit.Type: ApplicationFiled: March 2, 2017Publication date: September 7, 2017Inventors: Yuki HIRABAYASHI, Kazuhiko SATO, Masaru KOBASHI
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Patent number: 9555637Abstract: A cartridge 1 is provided with an ink pack 9, an air bag 10 capable of abutting the ink pack 9, and a pressurizing chamber 11 that stores the ink pack 9 and the air bag 10. In the case where the amount of ink in the ink pack 9 decreases, pressurized air is introduced into the air bag 10, the ink pack 9 is pressed against the air bag 10, and thereby the internal pressure of the ink pack 9 is increased. After that, pressurized air is introduced into the pressurizing chamber 11 so as to increase the internal pressure of the pressurizing chamber 11 and pressurize the ink pack 9 from outside. Accordingly, the ink in the ink pack 9 is supplied from an ink supply port 12 to the inkjet printer 2.Type: GrantFiled: March 24, 2016Date of Patent: January 31, 2017Assignee: Seiko Epson CorporationInventors: Masaru Kumagai, Yoshihiro Koizumi, Masaru Kobashi
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Publication number: 20160375702Abstract: 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: ApplicationFiled: June 2, 2016Publication date: December 29, 2016Inventors: Masaru KOBASHI, Izumi NOZAWA
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Patent number: 9498954Abstract: An ink jet recording apparatus includes a printer head that ejects ink and a platen. The ink includes an organic solvent, a surfactant, and 60% by mass or less of water. The platen is composed of a material containing a conductive resin. A solubility parameter A [(J/cm3)1/2] calculated from the organic solvent and the surfactant and a solubility parameter B [(J/cm3)1/2] of the conductive resin satisfy |A?B|?2.Type: GrantFiled: December 7, 2015Date of Patent: November 22, 2016Assignee: Seiko Epson CorporationInventors: Daisuke Ishihara, Yoichi Yamada, Masaru Kobashi
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Publication number: 20160288510Abstract: A cartridge 1 is provided with an ink pack 9, an air bag 10 capable of abutting the ink pack 9, and a pressurizing chamber 11 that stores the ink pack 9 and the air bag 10. In the case where the amount of ink in the ink pack 9 decreases, pressurized air is introduced into the air bag 10, the ink pack 9 is pressed against the air bag 10, and thereby the internal pressure of the ink pack 9 is increased. After that, pressurized air is introduced into the pressurizing chamber 11 so as to increase the internal pressure of the pressurizing chamber 11 and pressurize the ink pack 9 from outside. Accordingly, the ink in the ink pack 9 is supplied from an ink supply port 12 to the inkjet printer 2.Type: ApplicationFiled: March 24, 2016Publication date: October 6, 2016Inventors: Masaru KUMAGAI, Yoshihiro KOIZUMI, Masaru KOBASHI
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Publication number: 20160263897Abstract: A liquid ejecting apparatus includes a liquid ejecting head having a nozzle which ejects a liquid onto a medium, a wiping member that wipes the liquid which has adhered to a nozzle forming surface of the liquid ejecting head, a support member that supports the wiping member, moves the wiping member relative to the liquid ejecting head, and has a receiving portion receiving the liquid wiped by the wiping member, and a connection flow path that is capable of being connected to the support member, wherein the receiving portion and the connection flow path communicate with each other with movement of the support member.Type: ApplicationFiled: February 22, 2016Publication date: September 15, 2016Inventors: Masaru KOBASHI, Masahisa NAWANO, Kazuhiko SATO
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Patent number: 9375932Abstract: A liquid ejecting apparatus performs a wiping process for wiping a nozzle forming face while a leaking process for leaking liquid from a plurality of nozzle groups is performed by setting a pressure difference to a second pressure difference which is smaller than a first pressure difference, after performing a discharging process for discharging liquid from a part of nozzle groups among the plurality of nozzle groups by setting the pressure difference to the first pressure difference, when a difference which is obtained by subtracting an external pressure which is a pressure in a space to which a nozzle is open from an internal pressure which is a pressure of liquid in the nozzle included in the plurality of nozzle groups which eject liquid is set to the pressure difference.Type: GrantFiled: November 18, 2015Date of Patent: June 28, 2016Assignee: Seiko Epson CorporationInventors: Masahisa Nawano, Masaru Kobashi, Masaru Kumagai
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Patent number: 9375931Abstract: A liquid receiving apparatus includes a liquid holder including a discharging hole for discharging liquid, a bottom portion in which the discharging hole is disposed, and a wall rising from the bottom portion and surrounding the discharging hole. The bottom portion and the wall define a liquid retaining section configured to retain the liquid. The liquid holder is configured to move in a first movement direction intersecting a gravity direction. The wall includes a first inclined wall oblique to the first movement direction. The discharging hole is positioned next to the first inclined wall.Type: GrantFiled: February 3, 2015Date of Patent: June 28, 2016Assignee: Seiko Epson CorporationInventor: Masaru Kobashi
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Patent number: 9375933Abstract: A liquid ejecting apparatus is provided with a liquid ejecting unit capable of ejecting liquid, a plurality of liquid holding portions capable of holding the liquid that is discharged from the liquid ejecting unit, and a suction mechanism which is connected to the plurality of liquid holding portions. The liquid holding portion includes a liquid reception portion which receives the liquid that is discharged from the liquid ejecting unit, a liquid reservoir portion capable of storing the liquid further down in a vertical direction than the liquid reception portion, and an atmosphere communicating portion which communicates the liquid reservoir portion with the atmosphere.Type: GrantFiled: March 16, 2015Date of Patent: June 28, 2016Assignee: Seiko Epson CorporationInventors: Masaru Kobashi, Sho Kimura
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Publication number: 20160152030Abstract: A liquid ejecting apparatus performs a wiping process for wiping a nozzle forming face while a leaking process for leaking liquid from a plurality of nozzle groups is performed by setting a pressure difference to a second pressure difference which is smaller than a first pressure difference, after performing a discharging process for discharging liquid from a part of nozzle groups among the plurality of nozzle groups by setting the pressure difference to the first pressure difference, when a difference which is obtained by subtracting an external pressure which is a pressure in a space to which a nozzle is open from an internal pressure which is a pressure of liquid in the nozzle included in the plurality of nozzle groups which eject liquid is set to the pressure difference.Type: ApplicationFiled: November 18, 2015Publication date: June 2, 2016Inventors: Masahisa NAWANO, Masaru KOBASHI, Masaru KUMAGAI