Patents by Inventor Isamu Togashi

Isamu Togashi 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: 11235575
    Abstract: A flow path structure includes: a substrate that includes a first surface and a second surface on a side opposite to the first surface; a supply port formed on the first surface; a plurality of discharge ports formed on the second surface; grooves that are formed on the first surface so as to extend in an X direction and communicate with the supply ports and with the plurality of discharge ports via through-holes formed on the substrate; and a sealing portion that is disposed on the first surface and seals each groove.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: February 1, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Isamu Togashi, Hiroaki Okui, Yasuyuki Kudo, Fujio Akahane
  • Patent number: 11104130
    Abstract: A bifurcation path and a flow path which communicates with the head main body through the bifurcation path are provided. The bifurcation path includes an upstream-side path and a downstream-side path. In a plan view of a flow-path forming surface including the bifurcation path and the flow path, the flow path is disposed in a state where an angle between a flowing direction in the flow path and a flowing direction in the downstream-side path is an acute angle. In addition, an angle between a first wall surface of the flow path, which is the wall surface located downstream from the upstream-side path, and a second wall surface of the upstream-side path, which is the wall surface connected to the first wall surface, is equal to or less than 90°. Furthermore, the second wall surface of the upstream-side path has an R shape.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: August 31, 2021
    Assignee: Seiko Epson Corporation
    Inventor: Isamu Togashi
  • Publication number: 20200331269
    Abstract: A flow path structure includes: a substrate that includes a first surface and a second surface on a side opposite to the first surface; a supply port formed on the first surface; a plurality of discharge ports formed on the second surface; grooves that are formed on the first surface so as to extend in an X direction and communicate with the supply ports and with the plurality of discharge ports via through-holes formed on the substrate; and a sealing portion that is disposed on the first surface and seals each groove.
    Type: Application
    Filed: June 3, 2020
    Publication date: October 22, 2020
    Inventors: Isamu TOGASHI, Hiroaki OKUI, Yasuyuki KUDO, Fujio AKAHANE
  • Publication number: 20200331265
    Abstract: A bifurcation path and a flow path which communicates with the head main body through the bifurcation path are provided. The bifurcation path includes an upstream-side path and a downstream-side path. In a plan view of a flow-path forming surface including the bifurcation path and the flow path, the flow path is disposed in a state where an angle between a flowing direction in the flow path and a flowing direction in the downstream-side path is an acute angle. In addition, an angle between a first wall surface of the flow path, which is the wall surface located downstream from the upstream-side path, and a second wall surface of the upstream-side path, which is the wall surface connected to the first wall surface, is equal to or less than 90°. Furthermore, the second wall surface of the upstream-side path has an R shape.
    Type: Application
    Filed: July 2, 2020
    Publication date: October 22, 2020
    Inventor: Isamu TOGASHI
  • Patent number: 10730295
    Abstract: A bifurcation path and a flow path which communicates with the head main body through the bifurcation path are provided. The bifurcation path includes an upstream-side path and a downstream-side path. In a plan view of a flow-path forming surface including the bifurcation path and the flow path, the flow path is disposed in a state where an angle between a flowing direction in the flow path and a flowing direction in the downstream-side path is an acute angle. In addition, an angle between a first wall surface of the flow path, which is the wall surface located downstream from the upstream-side path, and a second wall surface of the upstream-side path, which is the wall surface connected to the first wall surface, is equal to or less than 90°. Furthermore, the second wall surface of the upstream-side path has an R shape.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: August 4, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Isamu Togashi
  • Patent number: 10717277
    Abstract: A flow path structure includes: a substrate that includes a first surface and a second surface on a side opposite to the first surface; a supply port formed on the first surface; a plurality of discharge ports formed on the second surface; grooves that are formed on the first surface so as to extend in an X direction and communicate with the supply ports and with the plurality of discharge ports via through-holes formed on the substrate; and a sealing portion that is disposed on the first surface and seals each groove.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: July 21, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Isamu Togashi, Hiroaki Okui, Yasuyuki Kudo, Fujio Akahane
  • Publication number: 20200139710
    Abstract: A flow path structure includes: a substrate that includes a first surface and a second surface on a side opposite to the first surface; a supply port formed on the first surface; a plurality of discharge ports formed on the second surface; grooves that are formed on the first surface so as to extend in an X direction and communicate with the supply ports and with the plurality of discharge ports via through-holes formed on the substrate; and a sealing portion that is disposed on the first surface and seals each groove.
    Type: Application
    Filed: December 27, 2019
    Publication date: May 7, 2020
    Inventors: Isamu TOGASHI, Hiroaki OKUI, Yasuyuki KUDO, Fujio AKAHANE
  • Patent number: 10549533
    Abstract: A flow path structure includes: a substrate that includes a first surface and a second surface on a side opposite to the first surface; a supply port formed on the first surface; a plurality of discharge ports formed on the second surface; grooves that are formed on the first surface so as to extend in an X direction and communicate with the supply ports and with the plurality of discharge ports via through-holes formed on the substrate; and a sealing portion that is disposed on the first surface and seals each groove.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: February 4, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Isamu Togashi, Hiroaki Okui, Yasuyuki Kudo, Fujio Akahane
  • Publication number: 20190210367
    Abstract: A bifurcation path and a flow path which communicates with the head main body through the bifurcation path are provided. The bifurcation path includes an upstream-side path and a downstream-side path. In a plan view of a flow-path forming surface including the bifurcation path and the flow path, the flow path is disposed in a state where an angle between a flowing direction in the flow path and a flowing direction in the downstream-side path is an acute angle. In addition, an angle between a first wall surface of the flow path, which is the wall surface located downstream from the upstream-side path, and a second wall surface of the upstream-side path, which is the wall surface connected to the first wall surface, is equal to or less than 90°. Furthermore, the second wall surface of the upstream-side path has an R shape.
    Type: Application
    Filed: March 18, 2019
    Publication date: July 11, 2019
    Inventor: Isamu TOGASHI
  • Publication number: 20190193402
    Abstract: A flow path structure includes: a substrate that includes a first surface and a second surface on a side opposite to the first surface; a supply port formed on the first surface; a plurality of discharge ports formed on the second surface; grooves that are formed on the first surface so as to extend in an X direction and communicate with the supply ports and with the plurality of discharge ports via through-holes formed on the substrate; and a sealing portion that is disposed on the first surface and seals each groove.
    Type: Application
    Filed: March 4, 2019
    Publication date: June 27, 2019
    Inventors: Isamu TOGASHI, Hiroaki OKUI, Yasuyuki KUDO, Fujio AKAHANE
  • Patent number: 10328689
    Abstract: A flow path structure which forms a flow path of liquid, includes: a light absorbing member (first substrate) having absorbing properties with respect to laser light; a light transmitting member (second substrate) which is joined to the light absorbing member and has transmitting properties with respect to the laser light; a first flow path (flow path) which is surrounded by a welding interface between the light absorbing member and the light transmitting member; and a second flow path which is formed in a flow path pipe (flow path pipe) which protrudes from a front surface opposite of the welding interface in the light transmitting member, and communicates with the first flow path, in which the flow path pipe is included in a region of the first flow path in a plan view from a direction orthogonal to the welding interface.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: June 25, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Taiki Hanagami, Isamu Togashi, Ryota Kinoshita
  • Patent number: 10286662
    Abstract: A bifurcation path and a flow path which communicates with the head main body through the bifurcation path are provided. The bifurcation path includes an upstream-side path and a downstream-side path. In a plan view of a flow-path forming surface including the bifurcation path and the flow path, the flow path is disposed in a state where an angle between a flowing direction in the flow path and a flowing direction in the downstream-side path is an acute angle. In addition, an angle between a first wall surface of the flow path, which is the wall surface located downstream from the upstream-side path, and a second wall surface of the upstream-side path, which is the wall surface connected to the first wall surface, is equal to or less than 90°. Furthermore, the second wall surface of the upstream-side path has an R shape.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: May 14, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Isamu Togashi
  • Patent number: 10286658
    Abstract: A flow path member includes a film, a main body that includes a recess portion that is closed by the film, a first opening and a second opening that are provided in the recess portion and used to supply and emit a liquid, and a wall which is provided in the recess portion. The film and the wall are configured to switch between contact and non-contact between the film and the main body according as the film displaces. In a first direction, the wall is provided around the first opening, the wall has a first slit in one of two portions of the wall across the first opening from each other and a second slit in the other one of the two portions, and the second opening is outside the wall. An opening area of the first slit is larger than an opening area of the second slit.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: May 14, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Taiki Hanagami, Isamu Togashi
  • Patent number: 10272683
    Abstract: A flow path structure includes: a substrate that includes a first surface and a second surface on a side opposite to the first surface; a supply port formed on the first surface; a plurality of discharge ports formed on the second surface; grooves that are formed on the first surface so as to extend in an X direction and communicate with the supply ports and with the plurality of discharge ports via through-holes formed on the substrate; and a sealing portion that is disposed on the first surface and seals each groove.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: April 30, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Isamu Togashi, Hiroaki Okui, Yasuyuki Kudo, Fujio Akahane
  • Patent number: 10226952
    Abstract: A liquid ejecting apparatus includes: an apparatus main body; a plurality of liquid ejecting heads that have a nozzle-formed surface; a unit base to which the plurality of liquid ejecting heads are fixed; and a lifting-lowering mechanism that is fixed to the apparatus main body and causes a position of the nozzle-formed surface to be shifted with respect to the apparatus main body. The lifting-lowering mechanisms are disposed in a direction orthogonal to a direction in which the plurality of liquid ejecting heads are aligned, in an in-plane direction of the nozzle-formed surface.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: March 12, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Isamu Togashi
  • Publication number: 20190023015
    Abstract: A flow path structure includes: a substrate that includes a first surface and a second surface on a side opposite to the first surface; a supply port formed on the first surface; a plurality of discharge ports formed on the second surface; grooves that are formed on the first surface so as to extend in an X direction and communicate with the supply ports and with the plurality of discharge ports via through-holes formed on the substrate; and a sealing portion that is disposed on the first surface and seals each groove.
    Type: Application
    Filed: September 27, 2018
    Publication date: January 24, 2019
    Inventors: Isamu Togashi, Hiroaki Okui, Yasuyuki Kudo, Fujio Akahane
  • 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
  • Patent number: 10124586
    Abstract: A flow path structure includes: a substrate that includes a first surface and a second surface on a side opposite to the first surface; a supply port formed on the first surface; a plurality of discharge ports formed on the second surface; grooves that are formed on the first surface so as to extend in an X direction and communicate with the supply ports and with the plurality of discharge ports via through-holes formed on the substrate; and a sealing portion that is disposed on the first surface and seals each groove.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: November 13, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Isamu Togashi, Hiroaki Okui, Yasuyuki Kudo, Fujio Akahane
  • Patent number: 10112394
    Abstract: A liquid ejecting head unit includes: a plurality of liquid ejecting heads that have a nozzle-formed surface; and a unit base that has a bottom portion having a fixing surface to which the plurality of liquid ejecting heads are fixed, and a wall portion which extends from the bottom portion in a direction perpendicular to the fixing surface and which is continuous in a direction in which the plurality of liquid ejecting heads are aligned.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: October 30, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Isamu Togashi
  • Publication number: 20180257372
    Abstract: A flow path member includes a film, a main body that includes a recess portion that is closed by the film, a first opening and a second opening that are provided in the recess portion and used to supply and emit a liquid, and a wall which is provided in the recess portion. The film and the wall are configured to switch between contact and non-contact between the film and the main body according as the film displaces. In a first direction, the wall is provided around the first opening, the wall has a first slit in one of two portions of the wall across the first opening from each other and a second slit in the other one of the two portions, and the second opening is outside the wall. An opening area of the first slit is larger than an opening area of the second slit.
    Type: Application
    Filed: March 1, 2018
    Publication date: September 13, 2018
    Inventors: Taiki HANAGAMI, Isamu TOGASHI