Patents Examined by Geoffrey S. Mruk
  • Patent number: 11072179
    Abstract: A liquid absorbent body according to the present disclosure includes a water absorbent resin and a pulp fiber, in which an evaporation rate of a pure water until elapse of 360 minutes after the pure water is absorbed is 0.0006 g/(cm2·min) or more and 0.0020 g/(cm2·min) or less, when the pure water of 20 mL is absorbed into the liquid absorbent body of 2.57 g, under an environment of 60° C. and 20% RH. It is preferable that the liquid absorbent body is configured to include an aggregate of small pieces in which a fiber base material containing the pulp fiber carries the water absorbent resin.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: July 27, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Naotaka Higuchi, Yoichi Miyasaka, Shogo Nakada
  • Patent number: 11065872
    Abstract: A liquid ejection head includes a nozzle including an ejection port for ejecting a liquid for performing recording on a recording medium, and a pressure chamber in which an energy generating element that generates energy used for ejecting the liquid from the ejection port is disposed; and a heating unit that heats the liquid. In the liquid ejection head, the liquid in the pressure chamber is circulated to and from the outside of the pressure chamber, and an average number of preliminary ejections per nozzle during an operation period in which the recording is performed is equal to or greater than 0 and equal to or less than 20.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: July 20, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhiko Osaki, Shingo Okushima, Yoshiyuki Nakagawa, Kazuhiro Yamada, Naozumi Nabeshima
  • Patent number: 11046076
    Abstract: A liquid discharge head includes: a liquid chamber; a supply flow path supplying liquid to the liquid chamber; a discharging flow path being provided away from the supply flow path in a horizontal direction and discharging the liquid from the liquid chamber; a first-connecting-flow-path communicating between the liquid chamber and the supply flow path; and nozzles for discharging the liquid supplied from the liquid chamber. The first-connecting-flow-path includes a first-supply-bottom-surface inclined downward with respect to a horizontal plane at a first-angle from the supply flow path toward the liquid chamber, and a second-supply-bottom-surface located between the first-supply-bottom-surface and the liquid chamber and inclined downward with respect to the horizontal plane at a second-angle from the first-supply-bottom-surface toward the liquid chamber.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: June 29, 2021
    Assignee: Seiko Epson Corporation
    Inventor: Keita Moriyama
  • Patent number: 11040544
    Abstract: A liquid discharge head includes a plurality of pressure chambers, a plurality of individual supply channels, a plurality of common supply channel branches, a common supply channel mainstream, a plurality of individual collection channels, a plurality of common collection channel branches, a common collection channel mainstream, a supply-side filter, and a bypass channel. The common supply channel mainstream is communicated with the common supply channel branches. The common collection channel mainstream is communicated with the common collection channel branches. The supply-side filter is in the common supply channel mainstream. The bypass channel bypasses the supply-side filter and communicates the common supply channel mainstream with the common collection channel mainstream. The bypass channel is connected to the common supply channel mainstream at a downstream of the supply-side filter in a direction of flow of the liquid along a longitudinal direction of the common supply channel mainstream.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: June 22, 2021
    Assignee: Ricoh Company, Ltd.
    Inventor: Yoshinori Bandoh
  • Patent number: 11027547
    Abstract: A liquid ejection head includes a substrate, an ejection orifice forming member having a plurality of ejection orifices for ejecting a liquid, and an intermediate layer provided between the substrate and the ejection orifice forming member. The substrate has a supply path for supplying the liquid to the plurality of ejection orifices, the ejection orifice forming member has a common liquid chamber communicating with the plurality of ejection orifices, the supply path and the common liquid chamber communicate with each other via a filter portion including a plurality of holes formed in the intermediate layer, the ejection orifice forming member has a wall portion that protrudes into the common liquid chamber at a position opposed to the filter portion, and the wall portion extends along a direction intersecting an arrangement direction of the plurality of ejection orifices.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: June 8, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yusuke Hashimoto, Kenji Fujii, Hiroyuki Murayama
  • Patent number: 11031538
    Abstract: An actuator device includes: an actuator including a first contact; and a wire member including a second contact connected to the first contact with a conductive adhesive including a conductive particle. One of the first contact and the second contact is a particular contact. The other of the first contact and the second contact is a specific contact. At least two protrusions and at least one recess are formed on and in the particular contact. The at least two protrusions are arranged in a first direction. The at least one recess is interposed between the at least two protrusions. The particular contact is joined to the specific contact with the conductive adhesive provided in the at least one recess, in a state in which each of the at least two protrusions is in contact with the specific contact.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: June 8, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Toru Kakiuchi
  • Patent number: 11020970
    Abstract: A liquid ejecting head including nozzles ejecting a liquid, a flow path member including flow paths that communicate with the nozzles, and an electric substrate stacked on the flow path member in a first direction. The flow path member includes pipes that protrude in the first direction from a surface facing the electric substrate, the flow paths respectively being formed inside the pipes. Through holes through which the pipes are inserted are provided in the electric substrate. The through holes include a first through hole and a second through hole. The pipes include a first pipe that includes a first contact surface that contacts an internal circumferential surface of the first through hole and a second pipe that includes a second contact surface that contacts an internal circumferential surface of the second through hole.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: June 1, 2021
    Assignee: Seiko Epson Corporation
    Inventor: Haruki Kobayashi
  • Patent number: 11020969
    Abstract: A liquid ejection head includes pressure chambers arranged in a first direction, first communicating portions, a first common channel extending in the first direction, second communicating portions, a second common channel extending in the first direction, and a damper film. The second common channel includes a first portion and a second portion connecting the first portion and the second communicating portions. The second portion extends from the first portion in a second direction orthogonal to the first direction toward the pressure chambers and is located to a side of the first common channel opposite to the pressure chambers in a third direction orthogonal to the first direction and the second direction. The damper film is located to a side of the second portion opposite in the third direction to the first common channel.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: June 1, 2021
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Taisuke Mizuno
  • Patent number: 11020966
    Abstract: A liquid ejection head substrate including a base including a surface having a first and second heat generation elements, a conductive first covering portion, a conductive second covering portion, an insulating layer disposed between the first heat generation element and the first covering portion, and between the second heat generation element and the second covering portion, a fuse portion, first wiring electrically connected to the first covering portion through the fuse portion, the first wiring electrically connecting the first covering portion to the second covering portion, a terminal electrically connected to the first covering portion and the second covering portion through the first wiring, second wiring, and electric connection portions provided between the fuse portion and the terminal in a current path passing through the first wiring, the electric connection portions parallelly connecting the first and second wiring to each other.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: June 1, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuzuru Ishida, Maki Kato, Yoshinori Misumi, Tsubasa Funabashi, Takahiro Matsui
  • Patent number: 11014363
    Abstract: A cover for covering the nozzle plate of a print head while in a parking position to delay a drying of ink. The cover can clean the nozzle plate while the nozzle plate is covered. A cost-effective and installation space-efficient cleaning of the nozzle plate of a print head is thus enabled.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: May 25, 2021
    Assignee: Canon Production Printing Holding B.V.
    Inventors: Matthias Kage, Ender Olgac, Christoph Stadler, Mehrad Biglari
  • Patent number: 11014360
    Abstract: A liquid discharge apparatus includes a first nozzle row group including at least two nozzle rows to discharge a first color liquid, shifted in the sub-scanning direction; a second nozzle row group including at least two nozzle rows to discharge a second color liquid, arranged in the main scanning direction; a main scanning device; a sub-scanning device; and circuitry to cause the first nozzle row group to discharge the first color liquid to positions corresponding to a plurality of pixels to form a first area on the recording medium, in accordance with scanning in the main scanning direction and the sub-scanning direction in a first sequence; and cause the second nozzle row group to discharge the second color liquid to positions corresponding to a plurality of pixels to form a second area on the recording medium, in accordance with scanning in the main scanning direction and the sub-scanning direction in a second sequence.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: May 25, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Shogo Miura, Hiroki Takahashi, Hiroyuki Iwasaki
  • Patent number: 11014387
    Abstract: The disclosure relates to a method for avoiding contamination of a printing plate given surface-covering coating of a dust-forming recording medium (e.g. an uncoated paper) with a coating substance (e.g. a primer) in an inkjet printing operation. The method can include feeding the recording medium at a feed velocity that is greater than 20 meters per minute; continuously printing of the coating substance onto the recording medium by at least one print head including a plurality of print nozzles, the coating substance being printed at a constant, predetermined applied quantity per area. A nip between the print head and the recording medium is provided such that a fluid-dynamic eddy is created between the recording medium and the print head and/or the printing plate. The disclosure also related to a printing system that is configured to implement the method.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: May 25, 2021
    Assignee: Canon Production Printing Holding B.V.
    Inventors: Oliver Greger, Walter Brenner, Michael Pohlt, Anna-Karin Eriksson, Rainer Jaeger
  • Patent number: 11014364
    Abstract: A print module includes: a cradle having a longitudinal cavity; an elongate printhead assembly positioned in the longitudinal cavity; a supply assembly slidably movable relative to the cradle along an axis perpendicular to a longitudinal axis of the printhead assembly, the supply assembly including a PCB fastened to a PCB mounting plate having a resilient flange configured for clamping engagement with a portion of the PCB containing PCB contacts; and a slide plate slidably movable relative to the cradle along an axis parallel to the longitudinal axis of the printhead assembly. The slide plate is configured for camming engagement with the resilient flange and sliding movement of the slide plate urges the resilient flange into clamping engagement with the portion of the PCB containing PCB contacts, thereby electrically connecting the PCB contacts with the printhead.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: May 25, 2021
    Inventors: David Burke, Norman Berry, Harrick Selvan Anothonysamy, Reynovel Pacinio Anciano, Soon Keat Fah, Poh Lai Say
  • Patent number: 11014369
    Abstract: A cartridge has a terminal disposition wall portion where a plurality of cartridge side terminals are disposed so as to form an inclined surface facing a direction including a components in ?Y and +Z directions. The terminal disposition wall portion includes a first protruding portion and a second protruding portion provided further in the ?Y direction than a second wall constituting a pressurization chamber, a first extending portion extending in the ?Y direction from the first protruding portion, and a second extending portion extending in the ?Y direction from the second protruding portion. A first cartridge side contact portion configured to come into contact with a first apparatus side contact portion is provided in the first extending portion. A second cartridge side contact portion configured to come into contact with a second apparatus side contact portion is provided in the second extending portion.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: May 25, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Shun Oya, Yoshihiro Koizumi
  • Patent number: 11014388
    Abstract: A test pattern formation method includes preparing a first pattern including a plurality of dot rows that are separated, and a second pattern including a plurality of regions having a width greater than a width of the plurality of dot rows and provided spaced apart by a plurality of gaps greater than or equal to the width of the plurality of dot rows. At least a portion of the first pattern and at least a portion of the second pattern are in positions overlapping each other. Given a largest overlap between one of the plurality of dot rows and one of the plurality of gaps as a reference, the other dot rows of the plurality of dot rows and the plurality of regions having a wide width overlap and are deviated from each other incrementally by a respective distance corresponding to a landing deviation amount.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: May 25, 2021
    Assignee: Seiko Epson Corporation
    Inventor: Eishin Yoshikawa
  • Patent number: 11001060
    Abstract: A piezoelectric actuator comprises a vibration plate, a first electrode, a first piezoelectric layer, a second electrode, a second piezoelectric layer and a third electrode. With respect to a top-bottom direction orthogonal to a surface of the vibration plate, the vibration plate, the first electrode, the first piezoelectric layer, the second electrode, the second piezoelectric layer and the third electrode are stacked in this order. The second piezoelectric layer is narrower than the first piezoelectric layer in a first direction parallel to the surface of the vibration plate. The third electrode extends in the first direction and covers both side surfaces of both of the first piezoelectric layer and the second piezoelectric layer in the first direction.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: May 11, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Taiki Tanaka
  • Patent number: 11001079
    Abstract: A thermal printer includes a thermal head in which a plurality of heating elements are arranged in a line, and a processor that executes a printing process of energizing the thermal head successively a predetermined number of times so at to print a printing data by causing a predetermined voltage to be applied to the thermal head the predetermined number of times in accordance with and in synchronization with strobe pulses in a strobe signal, a strobe width of each strobe pulse in the strobe signal defining a duration during which the thermal head is being applied with the predetermined voltage, wherein among the strobe pulses for the predetermined number of times of energizing the thermal head, a strobe width of at least one predetermined strobe pulse is set to be always shorter than a strobe width of another predetermined one of the strobe pulses.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: May 11, 2021
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Shumpei Tominaga, Katsuhiko Motoike
  • Patent number: 10994532
    Abstract: A liquid discharge apparatus includes a plurality of anti-cavitation layers formed to cover heat generating elements at positions where the anti-cavitation layers contact the liquid, a monitoring unit that detects a current flowing through the anti-cavitation layers, and a plurality of switching units that switch whether to apply, to the heat generating elements, a voltage for driving the heat generating elements. If the monitoring unit detects that a current greater than a predetermined value has flowed through one of the anti-cavitation layers while the voltage is applied to the heat generating elements, a control unit sequentially switches the plurality of switching units, and specifies the heat generating element corresponding to the anti-cavitation layer through which the current has flowed, among the heat generating elements.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: May 4, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuzuru Ishida, Maki Kato, Yoshinori Misumi, Nobuyuki Hirayama
  • Patent number: 10981397
    Abstract: Machine for printing objects having outer surfaces to be printed, the machine including a frame, and at least two treatment units and a printing unit attached on the frame, the printing unit including at least one inkjet printhead suitable for ejecting inkjets along a printing direction, and a turret mounted rotating relative to the frame around a rotation axis, and including four object holders spaced regularly apart at 90° around the rotation axis, and suitable for holding the objects and rotating them around four object-holder axes perpendicular to the rotation axis, the turret being movable successively between four positions, at least one of the object holders being across from the printing unit in each of the positions, while two others of the object holders are across from the treatment units, the printing machine including a turret support with an adjustable incline around a pivot axis relative to the frame.
    Type: Grant
    Filed: October 7, 2018
    Date of Patent: April 20, 2021
    Assignee: MACHINES DUBUIT
    Inventor: Jean-Louis Dubuit
  • Patent number: 10981382
    Abstract: A liquid discharge head includes a plurality of nozzles from which a liquid is discharged, the plurality of nozzles arrayed in one direction, a plurality of pressure chambers communicating with the plurality of nozzles, respectively, the plurality of pressure chambers arrayed in the one direction, a common supply channel communicating with each of the plurality of pressure chambers, a common collection channel communicating with each of the plurality of pressure chambers, and a damper disposed outside an array of the plurality of pressure chambers in the one direction, and configured to form an inner surface of at least one of the common supply channel and the common collection channel.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: April 20, 2021
    Assignee: Ricoh Company, Ltd.
    Inventor: Takahiro Yoshida