Patents Examined by Shelby l Fidler
  • Patent number: 11400708
    Abstract: the ejection amount per ejection from the nozzle when the distance between the nozzle and the recording medium is the first distance is equal to the ejection amount per ejection from the nozzle when the distance between the nozzle and the recording medium is the second distance.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: August 2, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Kazuaki Uchida, Shunya Fukuda
  • Patent number: 11396177
    Abstract: A liquid ejecting apparatus includes a drive element, and a drive circuit that outputs a drive signal that drives the drive element. The drive circuit includes an integrated circuit that outputs an amplification control signal, an amplifier circuit that output an amplified modulation signal, and a demodulation circuit that output the drive signal. The integrated circuit includes a modulation circuit that modulates the base drive signal to output a modulation signal, a discharge circuit that discharges a charge based on the drive signal, a constant voltage output circuit that outputs a DC voltage signal, and an output terminal from which the DC voltage signal is output. The constant voltage output circuit and the discharge circuit are electrically coupled to the output terminal, and a shortest distance between the output terminal and the constant voltage output circuit is shorter than a shortest distance between the output terminal and the discharge circuit.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: July 26, 2022
    Assignee: Seiko Epson Corporation
    Inventor: Tomokazu Yamada
  • Patent number: 11390074
    Abstract: According to one embodiment, an actuator of a liquid ejection head is supplied with a drive signal including a first waveform and at least one second waveform. First waveform includes a first change from a first voltage to a second voltage, and a second change from the second voltage to a third voltage less than the first voltage. A second waveform begins after a time equal to one half of the natural oscillation period of liquid in a pressure chamber of the liquid ejection head. The second waveform includes a change from the third voltage to the second voltage and a change from second voltage to the third voltage after a time less than one half of the natural oscillation period.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: July 19, 2022
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Ryutaro Kusunoki, Mengfei Wong
  • Patent number: 11390075
    Abstract: A fluidic die includes a fluid channel layer including at least one fluid channel defined along a length of the fluid ejection device. The fluidic die also includes an interposer layer coupled to the fluid channel layer. The interposer layer includes a number of inlet ports defined in the interposer layer to fluidically couple the at least one channel layer to a fluid source, and a number of outlet ports defined in the interposer layer to fluidically couple the at least one channel layer to the fluid source.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: July 19, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Si-lam Choy, Chien-Hua Chen, Michael W Cumbie
  • Patent number: 11383532
    Abstract: A drying device includes a support portion that supports a printed medium, a heating unit provided in a drying chamber for drying the medium supported by the support portion, a flow path member that forms an air flow path connecting an inflow port that opens downward in the vertical direction and the drying chamber, an air blowing unit that supplies, to the drying chamber, air flowing from the inflow port into the air flow path and causes the air to flow out of an outflow portion of the drying chamber, and a control unit that controls driving of the air blowing unit. The outflow portion is positioned lower than the inflow port in the vertical direction, and the control unit controls the driving of the air blowing unit to change an air flow rate of the air supplied to the drying chamber.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: July 12, 2022
    Assignee: Seiko Epson Corporation
    Inventor: Yuichi Washio
  • Patent number: 11364719
    Abstract: A print component includes a plurality of data pads, a clock pad to receive an intermittent clock signal, and a plurality of actuator groups each corresponding to a different liquid type and to a different one of the data pads. Each actuator group includes a plurality of configuration functions, an array of fluid actuators, and an array of memory elements including a first portion corresponding to the plurality of configuration functions and a second portion corresponding to the array of fluid actuators. Each time the intermittent clock signal is present on the clock pad, the array of memory elements to serially load a segment of data bits from the corresponding data pad, including loading a first portion of data bits into the first portion of memory elements, and loading a second portion of data bits into the second portion of memory elements.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: June 21, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: James Michael Gardner, Scott A. Linn, Michael W. Cumbie
  • Patent number: 11364728
    Abstract: A handy printer includes a print head and a housing and prints a print subject on a print medium by moving the housing in a sub-printing direction. The print head includes print elements arranged linearly in a first direction. The housing has a bottom surface on which the print head is arranged. The bottom surface of the housing has a standard bottom surface portion, a concave bottom surface portion formed to be more distant from the print medium than the standard bottom surface portion, and a convex portion. The concave bottom surface portion is formed on an area of the bottom surface that is to pass above an area of the print medium on which printing is performed by the print head when the housing is moved in a second direction.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: June 21, 2022
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Fumihiro Osakabe
  • Patent number: 11345146
    Abstract: There is provided a liquid discharge head including a channel member and a temperature sensor. The channel member includes: a plurality of individual channels aligned in a first direction; a first common channel extending in the first direction and communicating with the plurality of individual channels; a second common channel extending in the first direction, communicating with the plurality of individual channels and arranged side by side to the first common channel in a second direction crossing the first direction; and a connecting channel extending in the second direction and connecting an end in the first direction of the first common channel and an end in the first direction of the second common channel. The temperature sensor overlaps with the connecting channel in the second direction.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: May 31, 2022
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Keita Sugiura, Shohei Koide, Keita Hirai, Hiroshi Katayama
  • Patent number: 11345143
    Abstract: A liquid ejecting apparatus includes a head unit that ejects liquid, in which the head unit includes an integrated circuit and an ejector, the integrated circuit includes a drive signal input terminal that inputs a first drive signal, a first signal input terminal that inputs a first signal, a second signal input terminal that inputs a second signal, a first reference voltage signal input terminal that inputs a first reference voltage signal, a differential signal receiving circuit that converts a pair of first differential signals into a control signal and outputs the control signal, a drive signal selection circuit that outputs a second drive signal based on the control signal and the first drive signal, and a drive signal output terminal that outputs the second drive signal to the ejector, and the first signal input terminal and the first reference voltage signal input terminal are located adjacent to each other.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: May 31, 2022
    Inventor: Tomokazu Yamada
  • Patent number: 11345142
    Abstract: An liquid ejecting apparatus includes a drive signal output circuit, a control signal output circuit, a differential signal output circuit, a residual vibration signal input circuit, and a head unit, in which the head unit includes an integrated circuit and an ejector, and the integrated circuit includes a drive signal input terminal that inputs a first drive signal, a residual vibration signal output terminal that outputs a residual vibration signal, a differential signal receiving circuit that converts a pair of differential signals into a control signal and outputs the control signal, a drive signal selection circuit that outputs a second drive signal based on the control signal and the first drive signal, a drive signal output terminal that outputs the second drive signal to the ejector, and a residual vibration signal output circuit that outputs a residual vibration signal based on the residual vibration generated by driving the piezoelectric element.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: May 31, 2022
    Inventor: Tomokazu Yamada
  • Patent number: 11338600
    Abstract: A recording device includes a recording head in which a plurality of nozzle rows are arranged in a predetermined direction that include a first nozzle row including a plurality of nozzles for ejecting ink having a predetermined color, and a second nozzle row including a plurality of nozzles for ejecting ink having an identical color to the predetermined color, and a control unit configured to control ejection of ink by the nozzle, wherein the control unit, when a test pattern for an inspection of a missing dot due to an ejecting defect of the nozzle is recorded on a recording medium, records a dot pattern, that is an individual element that forms the test pattern, so that ink ejected from a nozzle of the first nozzle row, and ink ejected from a nozzle of the second nozzle row overlap.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: May 24, 2022
    Assignee: Seiko Epson Corporation
    Inventor: Kenichi Honda
  • Patent number: 11338576
    Abstract: A mobile printing robot includes a windbreak to reduce wind-induced deflection of ink droplets emitted from a printhead of the mobile printing robot. The printhead may have a comparatively large throw height to aid in permitting obstacles, such as particles from safely passing under the printhead without damaging the printhead or cause the printhead to become stuck. The windbreak may be implemented using resiliently compliant sections that block the wind but accommodate the passage of particles or other obstacles.
    Type: Grant
    Filed: September 12, 2020
    Date of Patent: May 24, 2022
    Assignee: DUSTY ROBOTICS, INC.
    Inventors: Philipp Josef Herget, Jeogseop Lee
  • Patent number: 11331909
    Abstract: Examples of a fluidic die for thermal zone selection with a circular shift register are described herein. In some examples, the fluidic die includes multiple thermal zones. Each thermal zone includes a temperature sensor and a fluidic actuator. The fluidic die also includes shared thermal control circuitry to process an output of the temperature sensor of a selected thermal zone. The fluidic die further includes a circular shift register that includes multiple memory elements. Each memory element is associated with one thermal zone. A token circulates within the circular shift register to select one thermal zone at a time for processing by the shared thermal control circuitry.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: May 17, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E. Anderson, Eric T. Martin, James Michael Gardner
  • Patent number: 11331906
    Abstract: A liquid discharge head includes: a supply manifold; a feedback manifold; and a plurality of individual flow channels. Each of the individual flow channels includes: a supply portion, a descender portion, and a feedback portion. The supply manifold has a plurality of supply ports, and the feedback manifold has a plurality of feedback ports. A distance between the center of the supply manifold in one direction and the plurality of supply ports of the supply manifold is longer than ¼ of a width of the supply manifold in the one direction, and a distance in the one direction between the center of the feedback manifold in the one direction and the plurality of feedback ports of the feedback manifold is shorter than ¼ of a width of the feedback manifold in the one direction.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: May 17, 2022
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shohei Koide, Keita Hirai, Keita Sugiura, Hiroshi Katayama
  • Patent number: 11331907
    Abstract: A liquid ejecting apparatus executing a print operation of ejecting liquid to a medium when a print job is input includes nozzles configured to eject liquid, piezoelectric elements corresponding to the nozzles, and driving circuits configured to supply a micro vibration pulse for generating micro vibration in the liquid included in the nozzles without ejection of the liquid from the nozzles to the piezoelectric elements. Strength of the micro vibration generated by the micro vibration pulse varies based on the print job.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: May 17, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Daisuke Matsumoto, Kei Yamaguchi
  • Patent number: 11318743
    Abstract: A liquid ejecting head unit includes an ejecting surface in which nozzles for ejecting a liquid are formed, and a first and a second circuit substrates for ejecting the liquid from the nozzles, in which a planar shape of the ejecting surface includes a first, a second and a third portions. A center line parallel to a long side of a rectangle of a minimum area surrounding the ejecting surface passes the first portion but not the second and third portions. The second and third portions are arranged adjacently to the first portion interposed therebetween. The first circuit substrate is positioned in the first and second portions. The second circuit substrate is positioned in at least one of the first and third portions.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: May 3, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Katsuhiro Okubo, Shigeki Suzuki, Hiroyuki Hagiwara, Takahiro Kanegae
  • Patent number: 11312130
    Abstract: A liquid ejecting head including: a first liquid ejecting portion configured to eject a liquid; a second liquid ejecting portion configured to eject a liquid; a first supply flow path configured to supply the liquid to the first liquid ejecting portion and the second liquid ejecting portion; and a temperature detection element for measuring a temperature of the liquid. The first supply flow path includes a common portion to which the liquid is supplied; a first branch portion that communicates with the common portion at a communication position, and that supplies the liquid from the common portion to the first liquid ejecting portion; and a second branch portion that communicates with the common portion at the communication position, and that supplies the liquid from the common portion to the second liquid ejecting portion. The temperature detection element is disposed at a vicinity of the communication position.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: April 26, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Hiroyuki Hagiwara, Katsuhiro Okubo
  • Patent number: 11305554
    Abstract: A method for writing an imageable material using multiple beams includes preparing subsequent patterns each having Y rows of N pixel locations, said subsequent patterns including first and second patterns; where the first and the second pattern overlap with each other in an overlap area consisting of O columns and Y rows of pixel locations; selecting for each row i of said first pattern Mi1 pixel locations; selecting for each row i of said second pattern Mi2 pixel locations; writing simultaneously, for each row i, said Mi1 selected pixel locations by moving the N beams in a fast scan direction relative to said imageable material; and moving said N beams relative to said imageable material in a slow scan direction over (N?O) pixel locations; writing simultaneously, for each row i, said Mi2 selected pixel locations by moving the N beams in a fast scan direction relative to said imageable material.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: April 19, 2022
    Assignee: XEIKON PREPRESS N.V.
    Inventors: Bart Mark Luc Wattyn, Dirk Ludo Julien De Rauw
  • Patent number: 11298958
    Abstract: An ink-jet recording apparatus is provided, including a first transport section which transports a recording medium; a recording section which is formed with a plurality of nozzles and which records an image on the recording medium by discharging ink droplets from the nozzles; an interference member which is provided at a position separated from the recording section; and a control unit which controls the recording section so that only a part of the nozzles is used for a certain area of the recording medium.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: April 12, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Kohei Terada
  • Patent number: 11285717
    Abstract: In some examples, a control apparatus for a fluid ejection device includes a plurality of selectors controllable by an input control signal to produce signals for selecting respective nozzles of the fluid ejection device, where a first selector is responsive to the input control signal propagated over a first signal path to turn on a device in the first selector, and a second selector is responsive to the input control signal to perform a different task. A memory encoder is to select a memory location in the memory, the memory encoder responsive to the input control signal propagated over a second signal path to turn on a device in the memory encoder, where signal loading of the second signal path is isolated from signal loading of the first signal path.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: March 29, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Boon Bing Ng, Hang Ru Goy