Patents Examined by Geoffrey S. Mruk
  • Patent number: 11454907
    Abstract: In some examples, a media conditioner includes a conveying component to convey a sheet of printable media, a heating element to heat the conveying component, a temperature sensor to measure a temperature of the conveying component, a media sensor to detect the sheet of printable media, and a controller to provide a power level to the heating element. A temperature set-point is set to a pre-established value. Based on data from the temperature sensor, the controller is to maintain the temperature of the conveying component at the temperature set-point by varying the power level. The controller is to apply a boost to the power level based on a signal from the media sensor while the temperature set-point remains at the pre-established value.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: September 27, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alan Shibata, Matthew Raisanen, Robert Yraceburu, Richard Lee Brinkly
  • Patent number: 11440320
    Abstract: There is provided a liquid discharge head including: a first plate formed with an individual channel which includes a pressure chamber; a second plate; a vibration plate; and a piezoelectric element. The second plate has a pair of communicating channels arranged to sandwich an accommodating space, which accommodates the piezoelectric element, therebetween. A spacing distance between mutually close parts in a pair of inner circumferential surfaces of the pair of communicating channels, respectively, is greater on a side of one ends in the stacking direction of the pair of communicating channels than on a side of the other ends in the stacking direction of the pair of communicating channels, the one ends being close to the individual channel in the stacking direction.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: September 13, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Taisuke Mizuno
  • Patent number: 11433675
    Abstract: A maintenance device configured to maintain a head configured to discharge a first liquid, the maintenance device includes a cap configured to contact a nozzle surface of the head, a storage configured to store a second liquid to be supplied into the cap, a supply device configured to supply the second liquid into the cap, a receptacle configured to receive the second liquid supplied into and overflown from the cap, and a collection device configured to collect the second liquid received by the receptacle.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: September 6, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventor: Kenta Takahashi
  • Patent number: 11433668
    Abstract: There is provided a liquid discharge head including: a communication plate having a plurality of descenders in respective communication with a plurality of nozzles, a pressure chamber plate being stacked on the communication plate and having a plurality of pressure chambers, a piezoelectric element arranged in a position overlapping with the pressure chambers in a stacking direction, and a discharge common channel extending in an array direction and being in communication with the plurality of pressure chambers. The discharge common channel includes: a first discharge portion formed in the communication plate; and a second discharge portion formed in the pressure chamber plate and in communication with the first discharge portion, the second discharge portion reaching as high as to a surface of the pressure chambers at the side of the piezoelectric element along the stacking direction.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: September 6, 2022
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Yasuo Kato
  • Patent number: 11427000
    Abstract: There is provided a liquid discharge head including: a channel unit; a piezoelectric actuator; and a protective member. Pressure chambers form pairs of the pressure chambers arranged in a second direction. Each of the pressure chamber pairs includes a first pressure chamber and a second pressure chamber that communicate with an identical nozzle via a communication channel. The protective member includes first partition walls joined to a surface at a first side in a first direction of the piezoelectric actuator and separating accommodating spaces from each other. Each of the first partition walls is provided between the first pressure chamber and the second pressure chamber, which belong to different pressure chamber pair, in the second direction. Each of the first partition walls is not provided between the first pressure chamber and the second pressure chamber, which belong to an identical pressure chamber pair, in the second direction.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: August 30, 2022
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Taiki Tanaka
  • Patent number: 11427004
    Abstract: A liquid discharge apparatus is provided, which comprises a conveyer, a rotatable support mechanism which supports a medium, a head, and a maintenance mechanism which has a cap configured to cover nozzles of the head. The support mechanism is configured to rotate about a rotation shaft to a first rotation position and a second rotation position at which a rotation end is separated further from the head as compared with a situation provided at the first rotation position. The maintenance mechanism is configured to move to a waiting position which is positioned oppositely to the rotation shaft of the support mechanism with respect to the rotation end of the support mechanism and a maintenance position which is positioned between the head and the support mechanism disposed at the second rotation position and at which the cap covers the nozzles.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: August 30, 2022
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Mitsugi Tanaka
  • Patent number: 11420460
    Abstract: A printing device includes: a housing; a print head extending in a first direction; a cassette receiving portion; and a movable cover. The cassette receiving portion is open in a second direction orthogonal to the first direction. The cassette receiving portion can selectively receive a first cassette or a second cassette whose size is greater than that of the first cassette. The movable cover is movable between a closed position and an open position for covering and exposing the cassette receiving portion in the second direction. The cassette receiving portion provides: a first cassette receiving portion for receiving the first cassette with the movable cover at the closed position; and a second cassette receiving portion for receiving the second cassette with the movable cover at the open position. A portion of the second cassette receiving portion is overlapped with the movable cover at the closed position in the first direction.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: August 23, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Shota Iijima, Takanori Izumi
  • Patent number: 11420447
    Abstract: A liquid discharging head includes a nozzle plate having a plurality of nozzles from which liquid is discharged; a plurality of individual liquid chambers that are communicably connected to the plurality of nozzles, respectively; a common liquid chamber that supplies liquid to the plurality of individual liquid chambers; and a circulation common liquid chamber that leads to a plurality of circulation channels. A part of the common liquid chamber overlaps the circulation common liquid chamber from a direction in which liquid is discharged from the nozzles, and another part of the common liquid chamber overlaps the circulation common liquid chamber from a direction orthogonal to both the direction in which liquid is discharged from the nozzles and a direction in which the nozzles are aligned.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: August 23, 2022
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomohiko Kohda, Takahiro Yoshida, Shiomi Andou, Takayuki Nakai, Kanshi Abe, Takeshi Shimizu, Ryo Kasahara
  • Patent number: 11413864
    Abstract: A die for a printhead is described herein. The die includes a number of fluid feed holes disposed in a line parallel to a longitudinal axis of the die, wherein the fluid feed holes are formed through a substrate of the die. A number of fluidic actuators are proximate to the fluid feed holes to eject fluid received from the plurality of fluid feed holes. The die includes logic circuitry to operate the fluidic actuators, wherein the logic circuitry is disposed on a first side of the plurality of fluid feed holes. Power circuitry to power the plurality of fluidic actuators is disposed on an opposite side of the fluid feed holes from the logic circuitry. Activation traces are disposed between each of the fluid feed holes to couple the logic circuitry to the power circuitry.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: August 16, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: James Michael Gardner, Anthony M. Fuller, Michael W. Cumbie, Scott A. Linn
  • Patent number: 11413866
    Abstract: A piezoelectric printhead includes a piezoelectric printing device, a manifold, a U-shaped flexible printed wiring element and an interconnection element. The piezoelectric printing device includes a piezoelectric plate and a substrate with at least one row of drop ejectors; first and second ink inlet ports; signal lines leading to corresponding signal input pads; and ground traces leading to at least one ground return pad. The manifold is fluidically connected to the ink inlet ports. The flexible printed wiring element includes a device connection region and a pair of legs that extend from the device connection region. The pair of legs includes signal connection lines and at least one ground connection line. The interconnection element is disposed between the device connection region of the flexible printing wiring element and a contact layer of the piezoelectric printing device that includes the signal input pads and the at least one ground return pad.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: August 16, 2022
    Assignee: SUZHOU RUIFA PRINTING TECHNOLOGY CO. LTD.
    Inventors: Yonglin Xie, Xiaofei Zhang, Liqiang Zhu
  • Patent number: 11413877
    Abstract: Inkjet printing systems and methods dynamically control meniscus pressure at a nozzle to more reliably deliver ink to a substrate. The systems and methods include inferring an angle of a longitudinal axis of a printhead relative to the vertical reference axis based on an orientation signal from an orientation sensor, determining a target feed fluid pressure upstream of the nozzle and a target recirculation fluid pressure downstream of the nozzle, thereby to maintain a target pressure differentiation across the nozzle based, at least in part, on the inferred angle of the longitudinal axis, and controlling a variable feed pump speed and a variable recirculation pump speed to obtain the target feed fluid pressure and the target recirculation fluid pressure.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: August 16, 2022
    Assignee: THE BOEING COMPANY
    Inventors: Matthew H. Mellin, Kjersta Lynn Larson-Smith, Edward Greene, Raj A. Desai
  • Patent number: 11407225
    Abstract: An inkjet chip including a substrate, a plurality of control elements, an insulating layer, a plurality of first conductive patterns, a plurality of second conductive patterns and a plurality of heaters is provided. The insulating layer is disposed on the control element and has a plurality of openings. The openings each have a first length in a first direction. Each first conductive pattern has a first sidewall overlapping one of the openings and is electrically connected between one of the control elements and one of the heaters. Each second conductive pattern has a second sidewall overlapping the one of the openings and is electrically connected to one of the heaters. A distance in the first direction is included between the first sidewall and the second sidewall opposing to each other. The distance is less than the first length. A thermal bubble inkjet printhead adopting the inkjet chip is also provided.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: August 9, 2022
    Assignee: International United Technology Co., Ltd.
    Inventors: Yuan-Liang Lan, Chih-Shun Chuang, Chao-Cheng Lan
  • Patent number: 11400712
    Abstract: A liquid discharge head includes a plurality of nozzles arrayed in a two-dimensional matrix, the plurality of nozzles configured to discharge a liquid, a plurality of pressure chambers respectively communicating with the plurality of nozzles, a plurality of common-supply branch channels communicating with two or more of the plurality of pressure chambers, a plurality of common-collection branch channels communicating with two or more of the plurality of pressure chambers, a common-supply main channel communicating with the plurality of common-supply branch channels, a common-collection main channel communicating with the plurality of common-collection branch channels, and a bypass channel configured to connect one of the plurality of common-supply branch channels and one of the plurality of common-supply branch channels. The plurality of common-supply branch channels and the plurality of common-supply branch channels are alternately arrayed in an array direction.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: August 2, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventor: Yoshinori Bandoh
  • Patent number: 11400711
    Abstract: the first nozzle channel includes a first portion including an end of the first nozzle channel and a second portion including another end of the first nozzle channel, and a width of the second portion in the second direction is larger than a width of the first portion in the second direction.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: August 2, 2022
    Assignee: Seiko Epson Corporation
    Inventor: Akira Miyagishi
  • Patent number: 11400733
    Abstract: An integrated inkjet module includes: a support chassis configured for fixedly mounting over a media feed path; a maintenance chassis mounted on the support chassis; a print bar chassis mounted on the maintenance chassis, the print bar chassis having printheads mounted thereon; and a lift mechanism operably interconnecting the print bar chassis and the maintenance chassis. The print bar chassis and the maintenance chassis are together slidably movable relative to the support chassis to a position offset from the media feed path.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: August 2, 2022
    Inventor: Mark Profaca
  • Patent number: 11396184
    Abstract: An ink jet recording apparatus includes a recording head, a wiper member, a cleaning liquid supply device, and a controller. The recording head includes an ink ejection surface having an ink ejection port from which ink is ejected. The cleaning liquid supply device includes a cleaning liquid supply surface having a cleaning liquid supply port from which cleaning liquid for wiping the ink ejection surface with the wiper member is supplied, and is located upstream of the ink ejection surface in a wiping direction. The controller controls a cleaning operation including squeezing out the cleaning liquid containing bubbles from the cleaning liquid supply port, and moving the wiper member carrying the cleaning liquid containing bubbles, in the wiping direction from a movement start position to an end position ahead of the ink ejection surface.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: July 26, 2022
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Issei Nakano, Takashi Somete, Chikara Ishihara, Hiroyuki Ueda, Hiroomi Nakatsuji, Noriaki Furukawa, Aiichiro Otana, Jun Nakano, Yasutaka Inui, Takuma Araki
  • Patent number: 11396183
    Abstract: Printers and associated printer maintenance methods and apparatus are disclosed. An example printer includes a nozzle to dispense fluid; a wiper to wipe the nozzle during a maintenance event; and a controller to cause the nozzle to dispense fluid during the maintenance event while the wiping material engages or is immediately adjacent the nozzle to deter a substance from being present within the nozzle.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: July 26, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: James D. Plymale, Donnell D. Daniels, Kyle Mannari, Jeffrey A. Wagner, Weiyun Sun, Rachelle Cobb
  • Patent number: 11390096
    Abstract: An ejection apparatus includes a platen for supporting a recording medium, an absorber provided in the platen for absorbing liquid, an ejection unit for ejecting a plurality of types of ink including a first liquid containing a component to be deposited when the first liquid is ejected onto the absorber, and a second liquid different from the first liquid for suppressing deposition of the first liquid, a detection unit for detecting a state of a predetermined region of the absorber, and a control unit for controlling the detection unit to detect the state, and controlling the ejection unit to eject the second liquid to the predetermined region based on a result of the detection. When the first liquid is ejected to the predetermined region, the second liquid is ejected to the predetermined region after the ejection of the first liquid is finished, without using the result of the detection.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: July 19, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoki Yamamuro, Kazuo Suzuki, Toshimitsu Danzuka, Yasunori Fujimoto, Masataka Kato, Kazuki Narumi, Hiroto Kango, Kazuhiko Sato
  • Patent number: 11383516
    Abstract: In one example in accordance with the present disclosure, a fluidic die is described. The fluidic die includes an array of firing subassemblies grouped into zones. Each firing subassembly includes 1) a firing chamber, 2) a fluid actuator disposed, and 3) a sensor plate. The fluidic die also includes a measurement device per zone to determine a state of a selected sensor plate. The fluidic die includes a selector per firing subassembly to couple the selected sensor plate to the measurement device. The fluidic die also includes a transmission path between each selector and its corresponding sensor plate. A first transmission path for a particular sensor plate has physical properties such that a parasitic capacitance along the first transmission path corresponds to a parasitic capacitance for a second transmission path of a second sensor plate in the zone, regardless of a difference in transmission path length.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: July 12, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Eric T. Martin, Vincent C. Korthuis
  • Patent number: 11383515
    Abstract: An element substrate comprises: a first insulation layer between a heater layer where plural heaters are formed, and a first wiring layer; and a second wiring layer formed within the first insulation layer, where an individual wiring connected to each heater is formed; a first metal plug that fills an interior of a first through-hole penetrating from the heater layer to the second wiring layer; and a second metal plug, provided in a place different from a place where the first through-hole is formed, that fills an interior of a second through-hole penetrating from the second wiring layer to the first wiring layer. Each heater is connected to the second wiring layer via the first metal plug, and the second wiring layer is connected to the first wiring layer via the second metal plug.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: July 12, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Sadayoshi Sakuma, Yohei Osuki