Patents Examined by Lisa Solomon
  • Patent number: 11027540
    Abstract: An object of the present invention is to provide an inkjet recording device capable of adjusting a clearance between prints formed by two nozzles (114, 115), and capable of printing a print content at a high speed. In order to achieve the object, there is provided an inkjet recording device which has two sub-print heads including nozzles (114, 115), charging electrodes (116, 117), deflection electrodes (118, 119), and gutters (120, 121), in which the two nozzles are disposed in a deflection direction of ink particles, and which performs printing on a printed object (124) while moving the printed object (124) relative to the ink particles in a direction substantially perpendicular to the deflection direction of the ink particles, the inkjet recording device having a function for reducing a clearance between print results (125, 126), printed by the two nozzles (114, 115), by controlling a voltage applied to the charging electrodes (116, 117) and a voltage applied to the deflection electrode (118, 119).
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: June 8, 2021
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Tsuneaki Takagishi, Manabu Kato, An Kyu
  • Patent number: 11020968
    Abstract: There are provided a head chip and a method of manufacturing the same, a liquid jet head, and a liquid jet recording device each capable of suppressing a stray capacitance to improve the image quality. The head chip according to an embodiment of the present disclosure is a head chip having an actuator plate adapted to apply pressure to liquid to jet the liquid.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: June 1, 2021
    Assignee: SII PRINTEK INC.
    Inventors: Tomoki Ai, Yuki Yamamura, Tooru Mine
  • Patent number: 11020982
    Abstract: A method of recirculating fluid in a printhead die is provided. The recirculation is performed for at least one nozzle, such that the recirculation finishes before the corresponding at least one nozzle completed ejection of a drop.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: June 1, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Joan Vidal, Jr., Lluis Abello
  • Patent number: 11020967
    Abstract: A printhead includes a number of inkjet slivers molded into a moldable substrate. The overmolded inkjet slivers form at least one die. The printhead also includes a number of wire bonds electrically coupling the inkjet slivers to a side connector. The side connector electrically couples the inkjet slivers to a controller of a printing device.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: June 1, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Chien-Hua Chen, Michael W Cumbie
  • Patent number: 11014367
    Abstract: An inkjet printer includes a housing, a first ink tank provided outside the housing, the first ink tank configured to store ink, a carriage having a second ink tank provided inside the housing, the second ink tank configured to store the ink, and a tube bundle obtained by bundling a plurality of tubes by which the second ink tank and the first ink tank are coupled. The housing is provided with a paper exit through which a sheet in the housing passes, the tube bundle passes through the paper exit, and a tube alignment direction of the tube bundle at the paper exit intersects with a sheet surface normal direction of the sheet at the paper exit.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: May 25, 2021
    Assignee: Seiko Epson Corporation
    Inventor: Koki Fukasawa
  • Patent number: 11001058
    Abstract: A method for determining a recording timing includes: recording patches disposed along a second axis with a recording head; and determining a recording timing of the recording head based on a selected recorded patch; wherein the patches each include an overlap region, a first region, and a second region; A?B is satisfied, where A is a width along the second axis of the first region and the second region, and B is a width along the second axis of the overlap region; the width B is recorded decreasing towards both ends along the second axis; and the recording includes a first recording in which the recording head moves in a first direction along the second axis and the overlap region is recorded with a first nozzle group and the first region is recorded with a third nozzle group, and a second recording in which the recording head moves in a second direction and the overlap region is recorded with a second nozzle group and the second region is recorded with the third nozzle group.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: May 11, 2021
    Assignee: Seiko Epson Corporation
    Inventor: Tomoyuki Okuyama
  • Patent number: 11001077
    Abstract: A method identifies at least one malfunctioning nozzle in a digital printing press, the digital printing press including a plurality of nozzles. The method includes printing a design on a substrate, acquiring at least one image of the printed design and identifying at least one artifact in the acquired image. The method further includes identifying the malfunctioning nozzle and classifying the at least one malfunctioning nozzle according to the at least one of the acquired image of the printed design, at least a portion of a nozzle pattern and at least a portion of a uniformity pattern.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: May 11, 2021
    Assignee: Advanced Vision Technology (A.V.T.) Ltd.
    Inventors: Chanan Gazala, Gilad Golan, Barry Ben Ezra, Dan Zamir
  • Patent number: 11001085
    Abstract: An application device and an application method are disclosed which enable a three-dimensional applying and drawing process to be performed without provision of any rotary mechanism on a discharge head. The application device comprises a discharge head that includes a discharge device having a discharge port opened in a Z direction, a stage that holds a workpiece, a set of XYZ relatively-moving devices that moves the discharge head and the stage relative to each other, an R-axis rotation device that rotates the stage about an R-axis parallel to an XY plane, a P-axis rotation device that rotates the stage about a P-axis parallel to the XY plane, the P-axis extending in a different direction from the R-axis, a control device, and a stand, wherein the P-axis rotation device is disposed under the R-axis rotation device, and the P-axis rotation device rotates the stage and the R-axis rotation device together.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: May 11, 2021
    Assignee: MUSASHI ENGINEERING, INC.
    Inventor: Kazumasa Ikushima
  • Patent number: 10994550
    Abstract: When a first fluid supply of a fluid-ejection device is empty and a second fluid supply of the device has a non-empty fluid amount less than a threshold, the device performs an action related to the second fluid supply. After the action has been performed and both the first and second fluid supplies have been replaced, the device primes the first and second fluid supplies. The action can include emptying the second fluid supply, and then messaging that both the fluid supplies require replacement. The action can include messaging that both fluid supplies require replacement although the second fluid supply is not empty. The action can include not messaging even that the first fluid supply requires replacement until the second fluid supply also becomes empty.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: May 4, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Michelle Pangborn, Kelvin Chiew, Melissa S Gedraitis
  • Patent number: 10994543
    Abstract: An inkjet printing apparatus includes a discharge head including orifices that discharge ink, a channel communicating with the orifices, a heating element that generates thermal energy for discharging the ink in the channel, a protection layer having a surface exposed to the channel and covering the heating element, and an electrode having a surface exposed to the channel; a tank that stores the ink to be supplied to the discharge head; an ink circulation unit that performs a circulation operation of circulating the ink between the discharge head and the tank; and a kogation removal unit that performs a removal operation of removing kogation generated around the heating element by applying a voltage between the protection layer and the electrode. The kogation removal unit performs the removal operation after the circulation operation is stopped.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: May 4, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Rinako Kameshima, Minoru Teshigawara, Yoshinori Misumi
  • Patent number: 10987944
    Abstract: A tray is used in a printing apparatus that includes a conveying unit configured to convey the tray holding a printing medium, and a printing unit configured to perform printing onto a print surface of the printing medium held by the tray. The tray includes a placement surface on which a printing medium is to be placed, a pressing member that presses the printing medium placed on the placement surface towards a downstream side of an inserting direction of the tray with respect to the printing apparatus, and a regulating portion configured to regulate a movement of the printing medium by abutting the printing medium pressed by the pressing member.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: April 27, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhiro Ota, Koya Iwakura, Shimpei Fujisaki
  • Patent number: 10987922
    Abstract: A printing apparatus, comprises: a printhead substrate; an application circuit for applying a driving signal to the driving element; a ground line connected to the application circuit; a plurality of temperature sensors that detects temperature relate to the printhead substrate, wherein the cathode side of the plurality of temperature sensors connects the ground line via a resistance; a first selection circuit, on an anode side of the plurality of temperature sensors, that selects one temperature sensor; a second selection circuit, on the cathode side of the plurality of temperature sensor, that selects the one temperature sensor; and a temperature signal output circuit that outputs a temperature signal in accordance with a difference between a voltage of an anode side and a voltage of a cathode side of the selected temperature sensor.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: April 27, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Ryo Kasai, Kengo Umeda, Takamitsu Tokuda
  • Patent number: 10981384
    Abstract: There is provided a liquid discharging head including: first and second individual channel rows having first individual channels and second individual channels aligned in a first direction, respectively; first and second common channels having first and second connecting parts, respectively; and a connecting channel connecting the plurality of first individual channels and the plurality of second individual channels to one another. The connecting channel has: a common connecting channel which does not have a connecting part with respect to the liquid supply source and which is communicated with the plurality of first individual channels and the plurality of second individual channels; a plurality of first individual connecting channels and a plurality of second individual connecting channels which connect the plurality of first individual channels and the plurality of second individual channels, respectively, to the common connecting channel.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: April 20, 2021
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Taisuke Mizuno, Hideki Hayashi
  • Patent number: 10974522
    Abstract: A liquid discharge apparatus includes a head including a row of a plurality of nozzles configured to discharge a liquid. The liquid discharge apparatus further includes circuitry configured to generate a discharge timing in accordance with movement of a linear object to which the head applies the liquid, apply a drive waveform to the head based on the discharge timing, and apply a micro vibrating pulse to the head after application of a discharge pulse for discharging the liquid and before a subsequent discharge timing. The micro vibrating pulse is for vibrating a meniscus of the nozzle.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: April 13, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventor: Kohtaroh Ikegami
  • Patent number: 10967635
    Abstract: There is provided a liquid discharge head including a first channel unit and a second channel unit. The first channel unit includes: a first joining surface; a tube disposed on an opposite surface opposite to the first joining surface; an outside portion; and a coupling portion. The second channel unit is joined to the first joining surface. An end of the outside portion and an end of the coupling portion in an orthogonal direction orthogonal to the first joining surface extend to an identical position in the orthogonal direction. The tube includes a circumferential portion that is exposed outside and extends in the orthogonal direction to the identical position to which the end of the outside portion and the end of the coupling portion extend.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: April 6, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Taisuke Mizuno
  • Patent number: 10967640
    Abstract: An ink discharge device includes a plurality of recording heads and one damper. The plurality of recording heads respectively have nozzles which discharges an ink. The one damper is provided in common to the plurality of recording heads and reduces pressure variation of an ink in each of the recording heads. Each of the recording heads includes a head side coupling. The damper includes a damper side coupling which is connected to the head side coupling along an up/down direction. The damper side coupling is provided so as to be movable along the up/down direction.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: April 6, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Kikunosuke Tsuji
  • Patent number: 10960695
    Abstract: A printing apparatus includes a printhead having a plurality of chips each including a plurality of nozzle arrays which are arranged in a predetermined nozzle array direction and each of which is formed from a plurality of nozzles and energy generation elements provided in correspondence with the nozzles of each nozzle array and each configured to generate energy used for discharging ink. The apparatus relatively moves the printhead and a print medium in a direction intersecting the nozzle array direction, reads a predetermined test pattern printed on the print medium by driving the printhead, analyzes the read test pattern, calculates a slant of the printhead with respect to a reference based on a result of the analysis, and corrects the calculated slant of the printhead by moving the printhead.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: March 30, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiaki Murayama, Shigeyasu Nagoshi, Daisuke Ishii
  • Patent number: 10960670
    Abstract: The present invention provides a method for electrohydrodynamic jet printing curved piezoelectric ceramics. First, a stable pressure is provided for a piezoelectric ceramic slurry to ensure that the slurry flows out from a nozzle at a fixed flow rate, and at the same time, an electric field is applied to the piezoelectric ceramic slurry at the nozzle to form a stable fine jet; then a curved substrate is fixed on a fixture of a curved substrate six-axis linkage module to ensure that the curved substrate is always perpendicular to the jet of the nozzle and keeps a constant distance from the nozzle during a printing process; fine jet drop on demand is realized through cooperative control of the changes of the curved substrate six-axis linkage module, the electric field and a flow field, and electrohydrodynamic jet printing and molding of curved piezoelectric ceramics is finally realized.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: March 30, 2021
    Assignee: Dalian University of Technology
    Inventors: Dazhi Wang, Kuipeng Zhao, Junsheng Liang
  • Patent number: 10953680
    Abstract: A liquid discharge apparatus includes a head configured to discharge a pretreatment liquid from nozzles formed on a nozzle surface of the head onto a medium, a holder configured to hold the medium with a gap between the nozzle surface of the head and the holder, and a heater configured to heat the medium held by the holder. The head discharges the pretreatment liquid onto the medium held by the holder with the gap of 4.0 mm or more.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: March 23, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoyuki Sekiguchi, Toshiyuki Kobashi, Taku Hatakeyama, Takashi Watanabe
  • Patent number: 10953651
    Abstract: A printing apparatus prints an image by applying ink to a print surface of an inclined print medium using a print head. A control apparatus for the printing apparatus acquires information on an inclination of the print surface. Based on the information, printing is controlled according to a print condition corresponding to a magnitude of the inclination of the print surface.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: March 23, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Naoki Sumi