Patents by Inventor Taisuke MIZUNO

Taisuke MIZUNO 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).

  • Publication number: 20200031134
    Abstract: A liquid discharging head includes: individual channels each including a nozzle; an inflow channel communicated with the individual channels; an outflow channel communicated with the individual channels; an inflow-side filter provided on the inflow channel and dividing the inflow channel into a lower inflow area and an upper inflow area; an outflow-side filter provided on the outflow channel and dividing the outflow channel into a lower outflow area and an upper outflow area; an inflow port which is provided on the upper inflow area and through which the liquid is supplied to the inflow channel from outside thereof; an outflow port which is provided on the upper outflow area and through which the liquid is discharged from the outflow channel to outside thereof; and a bypass channel connecting the upper inflow area and the upper outflow area.
    Type: Application
    Filed: May 31, 2019
    Publication date: January 30, 2020
    Inventor: Taisuke MIZUNO
  • Publication number: 20190375209
    Abstract: A liquid ejecting head includes: a plurality of liquid ejecting modules each including a plurality of head units and a first plate, a second plate, and a protrusion. The plurality of liquid ejecting modules is arrayed in a first direction. The first plate has a first surface to which the plurality of head units is fixed and a second surface opposite to the first surface. The first plate has a thickness in a second direction. The second plate is disposed at the second surface of the first plate so as to extend along the plurality of liquid ejecting modules. The protrusion protrudes from the second plate in a direction away from the first plate.
    Type: Application
    Filed: August 26, 2019
    Publication date: December 12, 2019
    Inventors: Hideki HAYASHI, Taisuke MIZUNO, Keita HIRAI, Yuichi ITO
  • Patent number: 10500860
    Abstract: An actuator device includes an actuator substrate having actuators, individual conductors electrically connected with the actuators respectively, and dummy conductors; and a bonding member bonded to a surface of the actuator substrate provided with the individual conductors and the dummy conductors. The individual conductors are aligned in an alignment direction to form a first row and a second row arranged in an orthogonal direction orthogonal to the alignment direction. In a first end portion of the actuator substrate on one side in the alignment direction, first individual conductors are aligned in the alignment direction without intervening second individual conductors therebetween. In a second end portion of the actuator substrate on the other side in the alignment direction, the second individual conductors are aligned in the alignment direction without intervening the first individual conductors therebetween.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: December 10, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Taisuke Mizuno, Hideki Hayashi, Keita Hirai, Yuichi Ito
  • Publication number: 20190371616
    Abstract: Provided is a method of analyzing metal contamination of a silicon wafer, the method including etching a surface layer region of the silicon wafer by bringing a surface of a silicon wafer to be analyzed into contact with etching gas that includes hydrogen fluoride gas and nitric acid gas; bringing an exposed surface of the silicon wafer, exposed by the etching, into contact with gas generated from a mixed acid including hydrochloric acid and nitric acid; heating the silicon wafer that has been brought into contact with the gas generated from the mixed acid; bringing the exposed surface, exposed by the etching, of the silicon wafer after the heating into contact with a recovery solution; and analyzing a metal component in the recovery solution that has been brought into contact with the exposed surface, exposed by the etching, of the silicon wafer.
    Type: Application
    Filed: February 23, 2018
    Publication date: December 5, 2019
    Applicant: SUMCO CORPORATION
    Inventor: Taisuke MIZUNO
  • Patent number: 10486423
    Abstract: A liquid ejection head, including: a first head unit; a second head unit shifted with respect to the first head unit in both of a first direction in which nozzles of the head units are arranged and a second direction orthogonal to the first direction and disposed so as to overlap the first head unit in the second direction; and a first wiring member having flexibility and drawn from the second head unit in the second direction toward the first head unit, wherein the first wiring member includes a large-width portion on which a drive circuit is mounted and a small-width portion having a width in the first direction smaller than a width of the large-width portion in the first direction, and wherein the small-width portion passes through a space existing next to the first head unit in the first direction and extends in the second direction.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: November 26, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hideki Hayashi, Keita Sugiura, Taisuke Mizuno
  • Patent number: 10471715
    Abstract: There is provided a liquid discharge apparatus which includes a channel substrate having a nozzle, a pressure chamber which communicates with the nozzle, an actuator which covers the pressure chamber, and a contact point that is electrically connected to the actuator, and a circuit board which has wires that are to be electrically connected to contact points, and which is adhered to the channel substrate. The channel substrate includes an adhesive wall which is provided with contact points, and which has a surface to which an adhering portion of the circuit board to be adhered to the channel substrate, is adhered, and further includes a wall portion which is provided with a cavity on a side of the adhesive wall, opposite to the surface, and which demarcates the cavity on a side opposite to the surface, of the adhesive wall, and the adhering portion is facing the cavity and the wall portion.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: November 12, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hideki Hayashi, Taisuke Mizuno, Keita Hirai, Yuichi Ito
  • Patent number: 10464323
    Abstract: A liquid ejection head, including: nozzles; and a supply passage through which a liquid is supplied to the nozzles, wherein the supply passage includes (a) a first flow passage and (b) a second flow passage connected to the first flow passage and including two sections that extend in different directions from a connected position at which the first flow passage is connected to the second flow passage, the liquid being supplied to the second flow passage from the first flow passage, wherein the second flow passage has a liquid flow resistance larger in a first section than in a second section, and wherein a protrusion protruding toward the first flow passage is provided on an inner wall surface of the second flow passage facing the first flow passage, for permitting the liquid to more easily flow from the first flow passage into the first section than the second section.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: November 5, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Taisuke Mizuno, Hideki Hayashi, Keita Sugiura
  • Patent number: 10449778
    Abstract: A filter unit includes: a liquid chamber forming member having a liquid inlet port, a liquid outlet port, and a liquid chamber communicating with the liquid inlet port and the liquid outlet port; and a filter disposed in the liquid chamber such that a surface direction of the filter lies along an up-down direction, the filter extending to an upper end of the liquid chamber to divide the liquid chamber into an upstream chamber communicating with the liquid inlet port and a downstream chamber communicating with the liquid outlet port. A discharge port joined to the liquid outlet port is disposed in an upper end portion of the downstream chamber at a central portion in a width direction orthogonal to the up-down direction, and the liquid chamber forming member has two first side wall surfaces sandwiching the discharge port in the width direction.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: October 22, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Taisuke Mizuno
  • Publication number: 20190263121
    Abstract: A liquid jetting apparatus jetting a liquid onto a recording medium conveyed in a first direction includes head units arranged in a second direction orthogonal to the first direction. One head unit includes nozzle chips; one nozzle chip has a nozzle arrangement area wherein nozzles are aligned in a third direction crossing the first and second directions. The nozzle chip is arranged to be shifted relative to another nozzle chip in a direction crossing the first and second directions and different from the third direction. The head unit has a first overlapping portion wherein nozzle arrangement areas of first and second nozzle chips included in the nozzle chips partially overlap with each other in the first direction. The liquid jetting apparatus has a second overlapping portion wherein nozzle arrangement areas of third and fourth nozzle chips included in the head units partially overlap with each other in the first direction.
    Type: Application
    Filed: May 14, 2019
    Publication date: August 29, 2019
    Inventors: Taisuke MIZUNO, Hideki HAYASHI, Keita SUGIURA
  • Patent number: 10357966
    Abstract: A liquid jetting head includes a flow channel substrate formed with pressure chambers, an actuator covering the pressure chambers, and a temperature sensor. A dummy pressure chamber is formed in a surface, of the flow channel substrate, in which the pressure chambers are open. The actuator includes: a vibration plate which covers the pressure chambers and the dummy pressure chamber and which has a first surface facing the pressure chambers and a second surface opposite to the first surface, and a piezoelectric body arranged on the second surface of the vibration plate to face the pressure chambers. The temperature sensor is arranged on the second surface of the vibration plate at a position facing the dummy pressure chamber.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: July 23, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yuichi Ito, Keita Hirai, Taisuke Mizuno, Hideki Hayashi
  • Patent number: 10336075
    Abstract: A liquid jetting apparatus jetting a liquid onto a recording medium conveyed in a first direction includes head units arranged in a second direction orthogonal to the first direction. One head unit includes nozzle chips; one nozzle chip has a nozzle arrangement area wherein nozzles are aligned in a third direction crossing the first and second directions. The nozzle chip is arranged to be shifted relative to another nozzle chip in a direction crossing the first and second directions and different from the third direction. The head unit has a first overlapping portion wherein nozzle arrangement areas of first and second nozzle chips included in the nozzle chips partially overlap with each other in the first direction. The liquid jetting apparatus has a second overlapping portion wherein nozzle arrangement areas of third and fourth nozzle chips included in the head units partially overlap with each other in the first direction.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: July 2, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Taisuke Mizuno, Hideki Hayashi, Keita Sugiura
  • Patent number: 10328698
    Abstract: A liquid discharge apparatus includes: a channel substrate; a first substrate; a piezoelectric element; a spacer, which is provided on a surface of the first substrate on which the piezoelectric element is disposed; a second substrate; and a bump electrode, wherein the spacer is provided between the bump electrode and the piezoelectric element and attached to at least one of the first and second substrates by an adhesive, and wherein both a space on a side of the piezoelectric element with respect to the spacer and a space on a side of the bump electrode with respect to the spacer are opened by at least one of a portion other than a portion of the spacer positioned between the piezoelectric element and the bump electrode and an opening provided in at least one of the first and second substrates.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: June 25, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Taisuke Mizuno
  • Publication number: 20190134983
    Abstract: An actuator device includes an actuator substrate having actuators, individual conductors electrically connected with the actuators respectively, and dummy conductors; and a bonding member bonded to a surface of the actuator substrate provided with the individual conductors and the dummy conductors. The individual conductors are aligned in an alignment direction to form a first row and a second row arranged in an orthogonal direction orthogonal to the alignment direction. In a first end portion of the actuator substrate on one side in the alignment direction, first individual conductors are aligned in the alignment direction without intervening second individual conductors therebetween. In a second end portion of the actuator substrate on the other side in the alignment direction, the second individual conductors are aligned in the alignment direction without intervening the first individual conductors therebetween.
    Type: Application
    Filed: December 31, 2018
    Publication date: May 9, 2019
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Taisuke MIZUNO, Hideki HAYASHI, Keita HIRAI, Yuichi ITO
  • Publication number: 20190092013
    Abstract: A liquid discharge apparatus includes: a channel substrate; a first substrate; a piezoelectric element; a spacer, which is provided on a surface of the first substrate on which the piezoelectric element is disposed; a second substrate; and a bump electrode, wherein the spacer is provided between the bump electrode and the piezoelectric element and attached to at least one of the first and second substrates by an adhesive, and wherein both a space on a side of the piezoelectric element with respect to the spacer and a space on a side of the bump electrode with respect to the spacer are opened by at least one of a portion other than a portion of the spacer positioned between the piezoelectric element and the bump electrode and an opening provided in at least one of the first and second substrates.
    Type: Application
    Filed: March 23, 2018
    Publication date: March 28, 2019
    Inventor: Taisuke Mizuno
  • Publication number: 20190092003
    Abstract: A liquid cartridge includes: a plurality of nozzles; a plurality of pressure chambers each in communication with each nozzle; a plurality of piezoelectric elements; a plurality of manifolds; a supply passage; a connection passage; and a temperature sensor. Each piezoelectric element is configured to apply pressure to liquid stored in each pressure chamber. The manifolds are in communication with the pressure chambers. The connection passage connects the supply passage to each of the manifolds and is configured to distribute the liquid supplied from the supply passage into the plurality of manifolds. The temperature sensor is provided at the connection passage and is configured to detect a temperature of the liquid flowing through the connection passage.
    Type: Application
    Filed: May 24, 2018
    Publication date: March 28, 2019
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Taisuke MIZUNO
  • Publication number: 20190047288
    Abstract: A liquid ejection head, including: a first head unit; a second head unit shifted with respect to the first head unit in both of a first direction in which nozzles of the head units are arranged and a second direction orthogonal to the first direction and disposed so as to overlap the first head unit in the second direction; and a first wiring member having flexibility and drawn from the second head unit in the second direction toward the first head unit, wherein the first wiring member includes a large-width portion on which a drive circuit is mounted and a small-width portion having a width in the first direction smaller than a width of the large-width portion in the first direction, and wherein the small-width portion passes through a space existing next to the first head unit in the first direction and extends in the second direction.
    Type: Application
    Filed: October 16, 2018
    Publication date: February 14, 2019
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hideki HAYASHI, Keita SUGIURA, Taisuke MIZUNO
  • Patent number: 10201975
    Abstract: An actuator device includes an actuator substrate having actuators, individual conductors electrically connected with the actuators respectively, and dummy conductors; and a bonding member bonded to a surface of the actuator substrate provided with the individual conductors and the dummy conductors. The individual conductors are aligned in an alignment direction to form a first row and a second row arranged in an orthogonal direction orthogonal to the alignment direction. In a first end portion of the actuator substrate on one side in the alignment direction, first individual conductors are aligned in the alignment direction without intervening second individual conductors therebetween. In a second end portion of the actuator substrate on the other side in the alignment direction, the second individual conductors are aligned in the alignment direction without intervening the first individual conductors therebetween.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: February 12, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Taisuke Mizuno, Hideki Hayashi, Keita Hirai, Yuichi Ito
  • Patent number: 10189273
    Abstract: A head unit includes: nozzle chips which are arranged side by side in a first direction, each of the nozzle chips having a jetting surface and nozzles aligned in a predetermined direction parallel to the jetting surface and crossing both of the first direction and a second direction orthogonal to the first direction; a holder configured to hold the nozzle chips from a side opposite to the jetting surface; and a fixing plate to which the nozzle chips are fixed and which is arranged on a side facing the jetting surface of each of the nozzle chips, wherein the holder has first walls arranged in the second direction so as to sandwich the nozzle chips therebetween; each of the first walls has first projections formed on an end surface thereof facing the fixing plate; and the first projections make contact with the fixing plate.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: January 29, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hideki Hayashi, Keita Sugiura, Taisuke Mizuno
  • Publication number: 20180361743
    Abstract: A liquid ejection device is disclosed. One device includes a liquid supply member defining a liquid supply channel that is in communication with a common liquid chamber via an outlet of the liquid supply channel. The outlet and the common liquid chamber extend along a longitudinal direction respectively. The liquid supply member includes a plurality of ribs located within the liquid supply channel, the plurality of ribs are disposed side by side in the longitudinal direction. The plurality of ribs includes a first rib, a second rib and a third rib. A distance from the first rib to the third rib in the longitudinal direction is smaller than a distance from the first rib to the second rib in the longitudinal direction.
    Type: Application
    Filed: August 27, 2018
    Publication date: December 20, 2018
    Inventors: Taisuke MIZUNO, Yasuo KATO, Takashi AIBA, Keita SUGIURA
  • Patent number: 10124590
    Abstract: A liquid ejection head, including: a first head unit; a second head unit shifted with respect to the first head unit in both of a first direction in which nozzles of the head units are arranged and a second direction orthogonal to the first direction and disposed so as to overlap the first head unit in the second direction; and a first wiring member having flexibility and drawn from the second head unit in the second direction toward the first head unit, wherein the first wiring member includes a large-width portion on which a drive circuit is mounted and a small-width portion having a width in the first direction smaller than a width of the large-width portion in the first direction, and wherein the small-width portion passes through a space existing next to the first head unit in the first direction and extends in the second direction.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: November 13, 2018
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hideki Hayashi, Keita Sugiura, Taisuke Mizuno