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).
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Patent number: 10308032Abstract: 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: GrantFiled: January 31, 2018Date of Patent: June 4, 2019Assignee: SEIKO EPSON CORPORATIONInventors: Yoshihiro Koizumi, Hitoshi Matsumoto, Masahisa Nawano
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Patent number: 10173429Abstract: 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: GrantFiled: October 18, 2016Date of Patent: January 8, 2019Assignee: Seiko Epson CorporationInventors: Masahisa Nawano, Taiki Hanagami, Isamu Togashi
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Publication number: 20180215161Abstract: 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: ApplicationFiled: January 31, 2018Publication date: August 2, 2018Applicant: SEIKO EPSON CORPORATIONInventors: Yoshihiro KOIZUMI, Hitoshi MATSUMOTO, Masahisa NAWANO
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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: 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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Patent number: 9889661Abstract: 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: GrantFiled: March 17, 2017Date of Patent: February 13, 2018Assignee: Seiko Epson CorporationInventors: Ryota Kinoshita, Masahisa Nawano
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Patent number: 9821565Abstract: 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: GrantFiled: May 13, 2016Date of Patent: November 21, 2017Assignee: Seiko Epson CorporationInventors: Masahisa Nawano, Fumiya Takino
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Publication number: 20170282552Abstract: 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: ApplicationFiled: March 17, 2017Publication date: October 5, 2017Inventors: Ryota KINOSHITA, Masahisa NAWANO
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Patent number: 9724925Abstract: 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: GrantFiled: May 24, 2016Date of Patent: August 8, 2017Assignee: Seiko Epson CorporationInventors: Masahisa Nawano, Hiroaki Okui, Yasuyuki Kudo
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Publication number: 20170120599Abstract: 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: ApplicationFiled: October 18, 2016Publication date: May 4, 2017Inventors: Masahisa NAWANO, Taiki HANAGAMI, Isamu TOGASHI
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Publication number: 20160347068Abstract: 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: ApplicationFiled: May 24, 2016Publication date: December 1, 2016Inventors: Masahisa NAWANO, Hiroaki OKUI, Yasuyuki KUDO
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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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Publication number: 20160250859Abstract: 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: ApplicationFiled: May 13, 2016Publication date: September 1, 2016Inventors: Masahisa NAWANO, Fumiya TAKINO
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Patent number: 9385299Abstract: 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: GrantFiled: November 21, 2014Date of Patent: July 5, 2016Assignee: Seiko Epson CorporationInventors: Takayuki Yonemura, Masahisa Nawano, Akio Konishi
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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: 9370935Abstract: 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: GrantFiled: June 3, 2015Date of Patent: June 21, 2016Assignee: Seiko Epson CorporationInventor: Masahisa Nawano
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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
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Patent number: 9356223Abstract: 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: GrantFiled: October 30, 2013Date of Patent: May 31, 2016Assignee: Seiko Epson CorporationInventors: Takayuki Yonemura, Masahisa Nawano
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Publication number: 20160129694Abstract: 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: ApplicationFiled: November 4, 2015Publication date: May 12, 2016Inventor: Masahisa NAWANO
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Publication number: 20150352855Abstract: 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: ApplicationFiled: June 3, 2015Publication date: December 10, 2015Inventors: Masahisa NAWANO, Fumiya TAKINO