Patents by Inventor Masahisa Nawano

Masahisa Nawano 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: 10308032
    Abstract: Provided is a cartridge that improves the effect of agitating ink. The cartridge is mounted to a liquid jetting apparatus that includes an air supply apparatus and a liquid jetting unit, and includes a liquid container that contains liquid, a case that includes the liquid container, and an air bag that is positioned between an internal wall of the case and the liquid container, and contacts with the liquid container in a state of being expanded upon being supplied with air. The air bag includes a first bag and a second bag that is positioned above the first bag. The air bag and the liquid container are aligned in a first direction intersecting an up-down direction. when viewed in the first direction, the first bag is arranged to overlap a lower part of the center in the up-down direction of the liquid container.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: June 4, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yoshihiro Koizumi, Hitoshi Matsumoto, Masahisa Nawano
  • Patent number: 10173429
    Abstract: A liquid ejecting head includes a head body which has a nozzle opening for ejecting a liquid and a first wiping surface to be wiped by a wiper; and a target wiping member which has a second wiping surface to be wiped by the wiper, wherein the head body and the target wiping member are lined up via a gap so as to face in the same direction as the first wiping surface and the second wiping surface, and an elastic member is elastic deformed and held in the gap to block the gap on a side of the first and second wiping surface.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: January 8, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Masahisa Nawano, Taiki Hanagami, Isamu Togashi
  • Publication number: 20180215161
    Abstract: Provided is a cartridge that improves the effect of agitating ink. The cartridge is mounted to a liquid jetting apparatus that includes an air supply apparatus and a liquid jetting unit, and includes a liquid container that contains liquid, a case that includes the liquid container, and an air bag that is positioned between an internal wall of the case and the liquid container, and contacts with the liquid container in a state of being expanded upon being supplied with air. The air bag includes a first bag and a second bag that is positioned above the first bag. The air bag and the liquid container are aligned in a first direction intersecting an up-down direction. when viewed in the first direction, the first bag is arranged to overlap a lower part of the center in the up-down direction of the liquid container.
    Type: Application
    Filed: January 31, 2018
    Publication date: August 2, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoshihiro KOIZUMI, Hitoshi MATSUMOTO, Masahisa NAWANO
  • Publication number: 20180194139
    Abstract: 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: Application
    Filed: March 9, 2018
    Publication date: July 12, 2018
    Inventors: Masaru KOBASHI, Masahisa NAWANO, Kazuhiko SATO
  • Publication number: 20180194138
    Abstract: 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: Application
    Filed: March 9, 2018
    Publication date: July 12, 2018
    Inventors: Masaru KOBASHI, Masahisa NAWANO, Kazuhiko SATO
  • Patent number: 9889661
    Abstract: A liquid ejecting head includes a liquid ejecting unit that has a nozzle surface to which the nozzle is open, a base member to which the liquid ejecting unit is fixed, and a cover member that is attached to the base member and on which a laminated member is laminated, in which the cover member has a fixing portion to which the laminated member is fixed and a fragile portion that has lower rigidity than the fixing portion, and is attached to the base member by fixing the fragile portion to the base member.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: February 13, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Ryota Kinoshita, Masahisa Nawano
  • Patent number: 9821565
    Abstract: The invention is to provide a liquid ejecting head including a flow path member which allows a capacity of an air bubble chamber to be increased as much as possible and in which a filter is not clogged even when the variation of a liquid consumption amount is large, and a liquid ejecting apparatus including the flow path member. Alternatively, the invention is to provide a liquid ejecting head including a flow path member which allows a capacity of an air bubble chamber to be increased as much as possible while being miniaturized in a transporting direction and a liquid ejecting apparatus including the flow path member.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: November 21, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Masahisa Nawano, Fumiya Takino
  • Publication number: 20170282552
    Abstract: A liquid ejecting head includes a liquid ejecting unit that has a nozzle surface to which the nozzle is open, a base member to which the liquid ejecting unit is fixed, and a cover member that is attached to the base member and on which a laminated member is laminated, in which the cover member has a fixing portion to which the laminated member is fixed and a fragile portion that has lower rigidity than the fixing portion, and is attached to the base member by fixing the fragile portion to the base member.
    Type: Application
    Filed: March 17, 2017
    Publication date: October 5, 2017
    Inventors: Ryota KINOSHITA, Masahisa NAWANO
  • Patent number: 9724925
    Abstract: A liquid ejecting head unit which includes a liquid ejecting head which includes a nozzle surface provided with nozzles, the nozzle surface being on a plane defined by two directions including a first and a second directions intersecting each other, a wiping unit comprising a wiper parallel to the first direction and configured to perform relative movement in the second direction between the wiper and the nozzle surface to wipe the nozzle surface, a recess defined by an edge provided along the first direction on the nozzle surface, and a controller for filling the recess with a liquid which spills from at least one nozzle among the nozzles, and for wiping the nozzle surface after wiping the recess.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: August 8, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Masahisa Nawano, Hiroaki Okui, Yasuyuki Kudo
  • Publication number: 20170120599
    Abstract: A liquid ejecting head includes a head body which has a nozzle opening for ejecting a liquid and a first wiping surface to be wiped by a wiper; and a target wiping member which has a second wiping surface to be wiped by the wiper, wherein the head body and the target wiping member are lined up via a gap so as to face in the same direction as the first wiping surface and the second wiping surface, and an elastic member is elastic deformed and held in the gap to block the gap on a side of the first and second wiping surface.
    Type: Application
    Filed: October 18, 2016
    Publication date: May 4, 2017
    Inventors: Masahisa NAWANO, Taiki HANAGAMI, Isamu TOGASHI
  • Publication number: 20160347068
    Abstract: A liquid ejecting head unit which includes a liquid ejecting head which includes a nozzle surface provided with nozzles, the nozzle surface being on a plane defined by two directions including a first and a second directions intersecting each other, a wiping unit comprising a wiper parallel to the first direction and configured to perform relative movement in the second direction between the wiper and the nozzle surface to wipe the nozzle surface, a recess defined by an edge provided along the first direction on the nozzle surface, and a controller for filling the recess with a liquid which spills from at least one nozzle among the nozzles, and for wiping the nozzle surface after wiping the recess.
    Type: Application
    Filed: May 24, 2016
    Publication date: December 1, 2016
    Inventors: Masahisa NAWANO, Hiroaki OKUI, Yasuyuki KUDO
  • Publication number: 20160263897
    Abstract: 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: Application
    Filed: February 22, 2016
    Publication date: September 15, 2016
    Inventors: Masaru KOBASHI, Masahisa NAWANO, Kazuhiko SATO
  • Publication number: 20160250859
    Abstract: The invention is to provide a liquid ejecting head including a flow path member which allows a capacity of an air bubble chamber to be increased as much as possible and in which a filter is not clogged even when the variation of a liquid consumption amount is large, and a liquid ejecting apparatus including the flow path member. Alternatively, the invention is to provide a liquid ejecting head including a flow path member which allows a capacity of an air bubble chamber to be increased as much as possible while being miniaturized in a transporting direction and a liquid ejecting apparatus including the flow path member.
    Type: Application
    Filed: May 13, 2016
    Publication date: September 1, 2016
    Inventors: Masahisa NAWANO, Fumiya TAKINO
  • Patent number: 9385299
    Abstract: Provided is a piezoelectric element comprising a first electrode; a piezoelectric body layer provided on the first electrode, the piezoelectric body layer including 50 mol % or more of at least bismuth and iron, and the piezoelectric body layer having a current density-time curve obtained by applying a voltage to the first electrode and the second electrode including a plurality of inflection points; and a second electrode provided on the piezoelectric body layer.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: July 5, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Takayuki Yonemura, Masahisa Nawano, Akio Konishi
  • Patent number: 9375932
    Abstract: 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: Grant
    Filed: November 18, 2015
    Date of Patent: June 28, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Masahisa Nawano, Masaru Kobashi, Masaru Kumagai
  • Patent number: 9370935
    Abstract: The invention is to provide a liquid ejecting head including a flow path member which allows a capacity of an air bubble chamber to be increased as much as possible and in which a filter is not clogged even when the variation of a liquid consumption amount is large, and a liquid ejecting apparatus including the flow path member. Alternatively, the invention is to provide a liquid ejecting head including a flow path member which allows a capacity of an air bubble chamber to be increased as much as possible while being miniaturized in a transporting direction and a liquid ejecting apparatus including the flow path member.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: June 21, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Masahisa Nawano
  • Publication number: 20160152030
    Abstract: 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: Application
    Filed: November 18, 2015
    Publication date: June 2, 2016
    Inventors: Masahisa NAWANO, Masaru KOBASHI, Masaru KUMAGAI
  • Patent number: 9356223
    Abstract: A liquid ejecting head includes a plate which is composed of a material containing silicon, a titanium oxide layer which is disposed above the plate, a bismuth-containing layer which is disposed above the titanium oxide layer and contains bismuth, a first electrode which is disposed above the bismuth-containing layer and composed of platinum, a piezoelectric layer which is disposed above the first electrode and composed of a piezoelectric material containing at least bismuth, and a second electrode which is disposed above the piezoelectric layer.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: May 31, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Takayuki Yonemura, Masahisa Nawano
  • Publication number: 20160129694
    Abstract: There is provided a liquid ejecting apparatus including a liquid ejecting unit that has a nozzle row configured to have a plurality of nozzles lined up along a first direction, and a wiping portion that moves in a second direction intersecting the first direction such that the liquid ejecting unit is wiped, in which the liquid ejecting unit includes a plurality of nozzle rows configured to have space therebetween in the second direction, a convex portion placed between the nozzle rows in the second direction, and flat portions placed at both sides of the convex portion in the first direction, and the wiping portion wipes at a first relative travel speed to collect liquid attached to the liquid ejecting unit to the flat portion, and then wipes at a second relative travel speed faster than the first relative travel speed to move liquid attached to the flat portion.
    Type: Application
    Filed: November 4, 2015
    Publication date: May 12, 2016
    Inventor: Masahisa NAWANO
  • Publication number: 20150352855
    Abstract: The invention is to provide a liquid ejecting head including a flow path member which allows a capacity of an air bubble chamber to be increased as much as possible and in which a filter is not clogged even when the variation of a liquid consumption amount is large, and a liquid ejecting apparatus including the flow path member. Alternatively, the invention is to provide a liquid ejecting head including a flow path member which allows a capacity of an air bubble chamber to be increased as much as possible while being miniaturized in a transporting direction and a liquid ejecting apparatus including the flow path member.
    Type: Application
    Filed: June 3, 2015
    Publication date: December 10, 2015
    Inventors: Masahisa NAWANO, Fumiya TAKINO