Of Ejector Patents (Class 347/9)
  • Patent number: 11141992
    Abstract: Provided is an inkjet printing apparatus including: a print head configured to eject a metallic ink containing silver particles; a carriage configured to scan the print head; and a control unit configured to print a metallic image by causing the print head to eject the metallic ink while scanning the print head; a reduction unit configured to control ink ejection from the print head so as to reduce coloring of a metallic dot formed by ejecting the metallic ink; and a setting unit capable of setting a plurality of printing modes including a first printing mode in which the reduction unit controls the ink ejection from the print head to reduce the coloring to a first degree, and a second printing mode in which the reduction unit controls the ink ejection from the print head to reduce the coloring to a second degree lower than the first degree.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: October 12, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsukasa Doi, Hiromitsu Yamaguchi, Akitoshi Yamada
  • Patent number: 11110730
    Abstract: An inkjet printer apparatus includes a printing head including a plurality of nozzles for printing an ink in a plurality of pixels arranged as a matrix type in a target substrate, a control circuit which moves the printing head in an x-direction crossing an y-direction of a scan direction, and determines an optimal position for using largest nozzles, and a driving part which moves the printing head to the optimal position and moves the printing head along the y-direction in the optimal position.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: September 7, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dongsul Kim, Honggi Min, Minsoo Kim
  • Patent number: 11108029
    Abstract: A method of manufacturing an organic electroluminescence display panel including: preparing a substrate; forming pixel electrodes arranged in a matrix above the substrate; forming parallel column banks above the substrate in spaces between the pixel electrodes in a row direction; forming functional layers including organic light emitting layers in gaps between the column banks, including causing relative motion in the row direction between the substrate and a head provided with nozzles arranged along a column direction while ejecting ink from selected nozzles among the nozzles to supply a set of the gaps with an ink including an organic material; and forming a counter electrode above the functional layers. Among the set of the gaps, nozzle patterns of the selected nozzles for a gap differ between a first gap and a second gap in a sequence in the row direction of the set.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: August 31, 2021
    Assignee: JOLED INC.
    Inventors: Yoshiaki Kondo, Toshiki Nishikiori
  • Patent number: 11104163
    Abstract: A printing apparatus includes: a head having a discharge surface in which a discharge port is opened, a pressure chamber which communicates with the discharge port, and an actuator which is configured to change a volume of the pressure chamber; a carriage configured to move the head in a scanning direction; a conveyor configured to move an object in a conveyance direction crossing the scanning direction; a posture changing mechanism configured to change a facing posture of the head with respect to the object; and a controller configured to control the actuator, the carriage, the conveyor and the posture changing mechanism, based on image data, to execute alternately and repeatedly a scanning operation and a conveying operation.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: August 31, 2021
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Kazunari Matsuura
  • Patent number: 11077659
    Abstract: A liquid ejecting apparatus includes a liquid discharging head having a first nozzle and a first piezoelectric element, a first driving signal generating circuit, a substrate on which the first driving signal generating circuit is provided, a first wire, and a first coil, in which the first driving signal generating circuit generates a first driving signal, the first piezoelectric element is driven based on the first driving signal to discharge liquid from the first nozzle, and the first wire is electrically coupled to the first driving signal generating circuit and propagates the first driving signal to the first piezoelectric element through the first coil.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: August 3, 2021
    Inventors: Tom Kashimura, Yuki Watanabe
  • Patent number: 11072170
    Abstract: A liquid discharge apparatus includes a recording head configured to discharge a liquid to form a pattern on a recording medium and a reading device configured to read the pattern. The apparatus further includes circuitry configured to form at least two first markers while moving the recording head relative to the recording medium in a head movement direction; form a second marker at one of positions of the at least two first markers, to form a pattern including a reference marker formed with one of the at least two first markers and a measurement marker in which the second marker is overlaid on another of the at least two first markers; and measure a distance between the reference marker and the measurement marker in the head movement direction based on information obtained by the reading device.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: July 27, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Nobuyuki Satoh, Kentaro Uehara
  • Patent number: 11046071
    Abstract: In one example in accordance with the present disclosure, a fluid ejection die is described. The die includes a number of actuator sensors disposed on the fluid ejection die to sense a characteristic of a corresponding actuator. Each actuator sensor is coupled to a respective actuator and multiple coupled actuator sensors and actuators are grouped as primitives on the fluid ejection die. The die also includes an actuator evaluation die per primitive to evaluate an actuator characteristic of any actuator within the primitive. The die also includes a number of disable devices. Each disable device 1) is coupled to a respective actuator of the number of actuators and 2) disables a corresponding actuator when the corresponding actuator is determined to be malfunctioning.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: June 29, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Eric Martin, Daryl E Anderson, James Michael Gardner
  • Patent number: 11025786
    Abstract: An image forming apparatus includes: a casing including a first side surface, and a second side surface opposing the first side surface in the first direction, and an NFC board and a USB board that are disposed in the casing. The NFC board has a first board surface. The USB board has a second board surface on which a USB port is mounted. The NFC board and The USB board that are disposed in the casing at a position closer to the first side surface in the first direction than the second side surface. The second board surface is located at a level different from the first board surface in the direction normal to the first board surface. The USB board does not overlap with the NFC board when viewed in the direction normal to the first board surface.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: June 1, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hiroyuki Shingai, Yuji Takimoto
  • 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: 10978327
    Abstract: A micro-structure transfer system may include a printhead and a pressure control device to control a pressure of fluid coupled with the printhead. The pressure control device forms a meniscus of fluid at a number of nozzles defined within the printhead to pick up a number of micro-structures. A printhead for transferring micro-structures includes a number of fluid chambers, a number of nozzles defined in an orifice plate through which fluid may exit the chambers, and a pressure control device to control a pressure of fluid within each of the chambers. The pressure control device forms a meniscus of the fluid at a number of nozzles defined within the printhead to pick up a number of micro-structures.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: April 13, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ning Ge, Ya-Ling Chang, Helen A. Holder
  • Patent number: 10946659
    Abstract: A printing apparatus comprises a printhead and a controller. The printhead includes dies, each die comprising rows of nozzles, wherein, in an overlapping region, the rows of nozzles of two dies overlap in a first direction, in which a relative movement between the printhead and a print medium takes place during operation of the printing apparatus. The controller is to apply a first weaving mask to a first row of nozzles of a first die and a second weaving mask to a second row of nozzles of the first die, the second weaving mask being different from the first weaving mask, the weaving masks defining, independent of print data, which of the nozzles of the corresponding row are to be used for printing in the overlapping region.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: March 16, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Leticia Rubio, Utpal Sarkar, Xavier Quintero Ruiz
  • Patent number: 10933647
    Abstract: An inkjet recording apparatus includes: a tank having an ink chamber and formed with an inlet; a recording head; a display configured to display a screen; and a controller configured to control the recording head and the display. The tank has an outer wall. At least a portion of the outer wall allows the ink stored in the ink chamber to be visible from an outside. The recording head is configured to eject the ink stored in the ink chamber to record an image on a sheet. The controller is further configured to periodically execute a first notification process to control the display to display a first notification screen when the quantity of ink stored in the ink chamber is not less than a residual ink threshold. The first notification screen prompts a user to check the quantity of ink stored in the ink chamber.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: March 2, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Kenta Horade
  • Patent number: 10926535
    Abstract: A fluidic die may include a fluid actuator comprising an electrical resistor, a power node to supply electrical current to the resistor to drive the fluid actuator, a low side switch transistor connected to a ground node and having a gate to control the flow of electrical current through the resistor, a voltage regulator to receive electrical power from the power node and to output a predetermined voltage and a level shifter to control to output a low side switch transistor gate drive voltage using the predetermined voltage and based upon control signals to control the gate to control fluid displacement by the fluid actuator. The predetermined voltage is greater than a voltage of the control signals and is independent of a resistance of the ground node.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: February 23, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Scott A Linn, Vincent C Korthuis, James M Gardner
  • Patent number: 10924630
    Abstract: A method is provided of digitally imaging a secure portion and a non-secure portion of scratch-off-coating protected documents of at least one game using middleware. The method includes: (a) generating the secure variable indicia in non-vector raster format; (b) generating vector graphics to be imaged on physical document locations; (c) assigning the secure variable indicia in a non-vector raster format to documents in and shuffling the documents throughout a print run; and (d) linking via middleware the secure variable indicia in the non-vector raster format to associated vector graphics variable indicia to be digitally imaged on the documents and to generate vector graphics-formatted data for each document in the print run. The secure variable indicia assignment and shuffling are executed by non-vector raster game generation software output that is reinterpreted by the middleware to produce related vector graphic output for the secure variable indicia.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: February 16, 2021
    Assignee: Hydragraphix
    Inventor: Fred W. Finnerty
  • Patent number: 10919292
    Abstract: An ejection apparatus includes: a feeding unit that feeds a recording medium; a first ejection unit that ejects droplets onto the recording medium to form plural detection images along a feeding direction of the recording medium, a detection unit that detects a distance from a predetermined origin of the recording medium to each of the detection images along the feeding direction; and a second ejection unit that is disposed on a downstream side relative to the first ejection unit in the feeding direction of the recording medium, and ejects droplets onto the recording medium at a timing based on a value obtained by adding an average value of differences between detection values of the detection unit and setting values to a setting value of the detection image on most downstream side in the feeding direction.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: February 16, 2021
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Yoshiyuki Taguchi
  • Patent number: 10913266
    Abstract: A printing apparatus that performs printing by using a print head includes a first power supply, a second power supply, and a control unit. The first power supply supplies a first voltage to the print head through a first supply line. The second power supply supplies a second voltage to the print head through a second supply line. The control unit supplies the first voltage from the first power supply without supplying a voltage from the second power supply at the time of an inspection of the print head, and executes a process action concerning a current leakage when a voltage exceeding a predetermined first threshold is generated on the second supply line.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: February 9, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kohei Ogi, Hisao Okita
  • Patent number: 10902800
    Abstract: Controlling privacy on a display includes a light-emitting diode (LED) pixel rotatably coupled to a microelectromechanical system (MEMS) and a controller to control the MEMS, the MEMS to rotate the LED pixel in response to a command issued by the controller to modify a viewing angle of the LED pixel such that the privacy on the display for that LED pixel is maintained.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: January 26, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kuan-Ting Wu, Wei-Chung Chen, Xuan-Fang Shi
  • Patent number: 10882310
    Abstract: In one example in accordance with the present disclosure, a fluid ejection die is described. The die includes a number of actuators to manipulate fluid. The actuators are disposed on the fluid ejection die and are grouped as primitives on the fluid ejection die. The fluid ejection die also includes a number of actuators sensors disposed on the fluid ejection die. The nozzle sensors receive a sense voltage indicative of a state of corresponding actuators. Each actuator sensor is coupled to a respective actuator. The fluid ejection die also includes an actuator evaluation device per primitive, which actuator evaluation device is disposed on the fluid ejection die. The actuator evaluation device evaluates an actuator characteristic of any actuator within the primitive and generates an output indicative of a failing actuator of the fluid ejection die.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: January 5, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E Anderson, Eric Martin, James Michael Gardner
  • Patent number: 10875293
    Abstract: In a print head, a plurality of ejection ports for ejecting metallic ink, including a solvent and particles for imparting a metallic gloss, are arranged in a predetermined direction. A plurality of printing scans are performed to the same area of the print medium to print an image on the print medium. In the printing scan, the metallic ink being ejected from the print head to a print medium while moving the print head in a scanning direction intersecting the predetermined direction. At least one of the plurality of printing scans is set as a first scan having a higher print ratio than the other printing scans.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: December 29, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiromitsu Yamaguchi, Fumitaka Goto, Yuto Kajiwara
  • Patent number: 10870293
    Abstract: When an image recording apparatus records an specific image over a boundary between a first dot formation range where dots are to be formed in a preceding recording operation of two consecutive recording operations and a second dot formation range where dots are to be formed in a subsequent recording operation of the two consecutive recording operations, the apparatus sets, as a correction portion, an end portion in a scanning direction of a specific region including at least one of a first boundary region adjacent to the second dot formation range and a second boundary region adjacent to the first dot formation range in the specific image, and forms the dot placed at the correction portion by discharging liquid of a discharge amount smaller than the discharge amount set for a dot element corresponding to the dot from nozzles.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: December 22, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Masao Mimoto, Kengo Noda, Shohei Ichikawa, Yoshimitsu Taniguchi, Tsuyoshi Ito
  • Patent number: 10857804
    Abstract: An inkjet recording apparatus includes: a tank having an ink chamber and formed with an inlet; a recording head; a display configured to display a screen; and a controller configured to control the recording head and the display. The tank has an outer wall. At least a portion of the outer wall allows the ink stored in the ink chamber to be visible from an outside. The recording head is configured to eject the ink stored in the ink chamber to record an image on a sheet. The controller is further configured to periodically execute a first notification process to control the display to display a first notification screen when the quantity of ink stored in the ink chamber is not less than a residual ink threshold. The first notification screen prompts a user to check the quantity of ink stored in the ink chamber.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: December 8, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Kenta Horade
  • Patent number: 10857790
    Abstract: There is provided a liquid discharge head including a drive IC that outputs the first signal and the second signal, and a wiring substrate having a first side and a second side longer than the first side, electrically connected to the drive IC, and propagating the first signal and the second signal, in which the wiring substrate includes a first electrode to which the first signal is input, a second electrode to which the second signal is input, a third electrode electrically connected to the first electrode, and a fourth electrode electrically connected to the second electrode, and in a direction along the second side, the second electrode is positioned between the first electrode and the third electrode, and the third electrode is positioned between the second electrode and the fourth electrode.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: December 8, 2020
    Inventors: Osamu Tonomura, Eiju Hirai, Motoki Takabe, Toru Kashimura
  • Patent number: 10850506
    Abstract: In some examples, a fluid ejection system can include one or more drive bubble devices and a sensor for each drive bubble device of the one or more drive bubble devices to detect a characteristic of each drive bubble device. The fluid ejection system can also include a controller. The controller can be configured to evaluate a first drive bubble device of the one or more drive bubble devices, and during the evaluation of the first drive bubble device, utilize one or more other drive bubble devices of the one or more drive bubble devices.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: December 1, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E Anderson, Eric Martin, James Michael Gardner, Tsuyoshi Yamashita
  • Patent number: 10850505
    Abstract: A printhead includes a printing element; a first power supply wiring configured to be electrically connected to one terminal of the printing element and supply power to the printing element; a transistor configured to be electrically connected to another terminal of the printing element and drive the printing element; a first ground wiring configured to be electrically connected to a source of the transistor; a second ground wiring configured to be electrically connected to a back gate of the transistor; and a first capacitive element configured to be electrically connected, at one terminal thereof, to the first ground wiring and electrically connected at another terminal thereof, to the second ground wiring.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: December 1, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kengo Umeda, Ryo Kasai
  • Patent number: 10828890
    Abstract: In an embodiment of the present invention, even though there is a print shift due to a gap between a nozzle in an upstream side and a nozzle in a downstream side of a printhead, a printing apparatus capable of precisely adjusting a slant of a printhead with respect to a conveyance direction in a nozzle surface of the printhead is provided. According to the embodiment, two adjustment patterns are printed at two different carriage speeds, respectively, and a print shift due to a slant of the nozzle surface of the printhead with respect to a conveyance direction of a print medium is adjusted based on these two print results.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: November 10, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Daigo Kuronuma, Masakazu Nagashima, Ryohei Maruyama, Tomohito Abe, Noriyuki Aoki, Naoaki Wada, Toshiaki Yamaguchi
  • Patent number: 10780691
    Abstract: A drive waveform generating device includes circuitry configured to generate a drive waveform to be applied to a pressure generation element of a liquid discharge head. The drive waveform including a first waveform and a second waveform continuous in time series with the first waveform. The first waveform includes a falling element to lower a potential from an intermediate potential to a lower potential lower than the intermediate potential, a raising element to raise the potential from the lower potential to a higher potential higher than the intermediate potential, and a potential holding element to hold the higher potential. The second waveform includes a raising element to raise the potential from the intermediate potential to a raised potential higher than the intermediate potential, a potential holding element to hold the raised potential, and a falling element to lower the potential from the raised potential to the intermediate potential.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: September 22, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Norimasa Sohgawa
  • Patent number: 10768869
    Abstract: According to an embodiment of this invention, an image processing apparatus generates image data to be used to print an image on a print medium, based on a print job transmitted from a host, generates first print data by performing image processing on part of the generated image data, stores the first print data in a first memory, generates second print data by performing image processing on a remaining part of the generated image data, and stores the second print data in a second memory. The apparatus further transfers the first print data from the first memory to the second memory, composes the first print data and the second print data stored in the second memory, and transfers the composite data as print data to a continuous area of a third memory.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: September 8, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hironori Nakamura
  • Patent number: 10766249
    Abstract: The negative pressure in the ink chamber of a nozzle of a print head is reduced in a printing interruption phase, in particular upon transport of the print head from a cleaning position into a printing position, relative to the negative pressure in a printing phase. The leaking of ink during the printing interruption phase may thus be reliably avoided, and the print quality may be increased.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: September 8, 2020
    Assignee: Canon Production Printing Holding B.V.
    Inventors: Kay Luecke, Admir Lela
  • Patent number: 10744804
    Abstract: An inkjet printing apparatus includes a mounting unit where a recording medium is mountable, a head unit that ejects ink droplets to the recording medium, a planar direction driving unit that drives at least one of the head unit ejecting the ink droplets and the mounting unit to move in a planar direction and that changes a relative positions of the head unit and the mounting unit in the planar direction, and a height direction driving unit that changes a relative positions of the head unit and the mounting unit in a height direction perpendicular to the planar direction. The planar direction driving unit has a moving speed changing mechanism that changes a carriage speed between the head unit and the mounting unit in the planar direction. The height direction driving unit has a distance changing mechanism that changes a distance between the head unit and the mounting unit.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: August 18, 2020
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventor: Masaru Ohnishi
  • Patent number: 10744775
    Abstract: An ink-jet printer includes a conveyor, a carriage, a recording head, an ink receiver, a command receiver, and a controller. The controller executes: determining an ink amount that the recording head should discharge to the ink receiver; executing a flushing process that moves the carriage to an area facing the ink receiver and causes each of a plurality of nozzles to discharge ink of the determined ink amount; and based on the flushing process having finished, executing a recording process. The controller, based on the determined ink amount being less than a first threshold value, causes the recording head to discharge ink of the determined ink amount in ? times of the flushing processes, and based on the determined ink amount being the first threshold value or more, causes the recording head to discharge ink of the determined ink amount dispersed in ? (?>?) times of the flushing processes.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: August 18, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Satoru Arakane
  • Patent number: 10740662
    Abstract: In a printing chip overlapping area being an area in which a first printing chip and a second printing chip overlap with each other when viewed from a second direction, ink is discharged so that a first overlapping area and a second overlapping area at least partially do not overlap with each other when viewed from the second direction. In the first overlapping area, a nozzle usage ratio of a first nozzle row and a nozzle usage ratio of a third nozzle row are neither 0% nor 100%. In the second overlapping area, a nozzle usage ratio of a second nozzle row and a nozzle usage ratio of a fourth nozzle row are neither 0% nor 100%.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: August 11, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Takashi Doi
  • Patent number: 10730327
    Abstract: An inkjet recording apparatus includes: a tank having an ink chamber and formed with an inlet; a recording head; a display configured to display a screen; and a controller configured to control the recording head and the display. The recording head is configured to eject the ink stored in the ink chamber to record an image on a sheet. The controller is configured to: execute a first determination process to determine whether a user is near the inkjet recording apparatus; and execute, after determination in the first determination process that the user is near the inkjet recording apparatus, a notification process to control the display to display a notification screen when the quantity of ink stored in the ink chamber is not less than a residual ink threshold. The notification screen prompts the user to check the quantity of ink stored in the ink chamber.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: August 4, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Kenta Horade
  • Patent number: 10730287
    Abstract: A fluid ejection device may include fluid actuators and an actuation controller. Each fluid actuator may have an associated address. The actuation controller is to receive an address for a fluid actuator of the device to be actuated and is further to automatically transmit one of different fire pulses based upon the received address.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: August 4, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Vincent C Korthuis, Eric T Martin
  • Patent number: 10688783
    Abstract: A discharging apparatus includes: a discharging unit that includes a liquid chamber which stores a liquid intermittently supplied from a liquid supply source and a nozzle which discharges the liquid stored in the liquid chamber; a pressure detection unit that detects a pressure of the liquid supplied to the liquid chamber; and a control unit that controls the discharging unit based on a detection result from the pressure detection unit, in which the control unit limits liquid discharging by the discharging unit in a case where the pressure of the liquid supplied to the liquid chamber does not fall within an allowable pressure range.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: June 23, 2020
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Takashi Machida, Tsuyoshi Yamamoto
  • Patent number: 10682855
    Abstract: A liquid ejecting head has: a nozzle plate defining a nozzle; a pressure generating section corresponding to a pressure chamber communicating with the nozzle and the section configured to cause a liquid to be ejected from the nozzle; a common flow path through which the liquid is to be supplied to and discharged from the pressure chamber; and a vibration absorbing body configured to eliminate changes in pressure in the common flow path. The vibration absorbing body and the nozzle plate each define an inner wall of the common flow path and an outer wall of the liquid ejecting head.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: June 16, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Kazuaki Uchida, Toshiro Murayama, Shunya Fukuda
  • Patent number: 10682866
    Abstract: A printing system includes a printing apparatus and a device. The printing apparatus includes a printing head, a fixture jig and a fixture platform. The printing head prints a design on a nail of a finger or toe. The fixture jig is detachable from the printing apparatus, includes a reference mark, and fixes the finger or toe. In the fixture platform, the fixture jig is set such that the reference mark and the nail of the finger or toe is in an X-Y plane. The device includes a communicator, an imaging unit and a processor. The communicator communicates with the printing apparatus. The imaging unit images the fixture jig with the finger or toe fixed thereon to obtain an image of the reference mark and the nail.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: June 16, 2020
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Tamotsu Irie
  • Patent number: 10639884
    Abstract: In a print head, a plurality of ejection ports for ejecting metallic ink, including a solvent and particles for imparting a metallic gloss, are arranged in a predetermined direction. A plurality of printing scans are performed to the same area of the print medium to print an image on the print medium. In the printing scan, the metallic ink being ejected from the print head to a print medium while moving the print head in a scanning direction intersecting the predetermined direction. At least one of the plurality of printing scans is set as a first scan having a higher print ratio than the other printing scans.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: May 5, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiromitsu Yamaguchi, Fumitaka Goto, Yuto Kajiwara
  • Patent number: 10639909
    Abstract: A direct-to-object printer includes a sliding arm that carries a plurality of printheads over a planar member for the printing of objects on the planar member and that rotates the plurality of printheads after the printheads have passed over the planar member. The printer then moves the sliding arm in the opposite direction over the planar member to print a different portion of the objects on the planar member while maintaining the same order of the printheads.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: May 5, 2020
    Assignee: Xerox Corporation
    Inventor: Richard A. Campbell
  • Patent number: 10636905
    Abstract: An LDFET is disclosed. A source region is electrically coupled to a source contact. A lightly doped drain (LDD) region has a lower dopant concentration than the source region, and is separated from the source region by a channel. A highly doped drain region forms an electrically conductive path between a drain contact and the LDD region. A gate electrode is located above the channel and separated from the channel by a gate dielectric. A shield plate is located above the gate electrode and the LDD region, and is separated from the LDD region, the gate electrode, and the source contact by a dielectric layer. A control circuit applies a variable voltage to the shield plate that: (1) accumulates a top layer of the LDD region before the transistor is switched on; and (2) depletes the top layer of the LDD region before the transistor is switched off.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: April 28, 2020
    Assignee: Silanna Asia Pte Ltd
    Inventors: George Imthurn, James Douglas Ballard, Yashodhan Vijay Moghe
  • Patent number: 10625512
    Abstract: A liquid discharge apparatus including a liquid discharge head that discharges a liquid by vibrating a vibration plate by a drive element and changing a pressure in an internal space filled with the liquid, a pressurization supply unit that forcibly feeds the liquid into the liquid discharge head, and a controller that restricts drive of the drive element in accordance with a pressure condition in the liquid discharge head.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: April 21, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Yukimasa Ishida, Hironori Matsuoka
  • Patent number: 10603909
    Abstract: Provided is an ink jet recording method by which the decrease of degassing efficiency is suppressed even after images are recorded for a long period of time in a case where the degassing is performed while circulating an ink in an ink circulation system. An ink jet recording method recording an image on a recording medium by ejecting an ink from a recording head by using an ink jet recording apparatus equipped with an ink storage portion for storing the ink, the recording head for ejecting the ink, a unit for circulating the ink in an ink circulation system arranged between the ink storage portion and the recording head and a unit for degassing the ink circulating in the ink circulation system, the ink being an aqueous ink containing a pigment dispersed by an action of an anionic group, a resin particle and a specific water-soluble organic solvent.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: March 31, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Minako Kawabe, Kouhei Nakagawa
  • Patent number: 10603900
    Abstract: A method detects defective print nozzles in an inkjet printing machine by a computer. In a first phase within the context of a print job, print nozzle test patterns are printed beside a subject on a printing substrate. These print nozzle test patterns are then digitized by an image sensor and sent to the computer, where they are analyzed by the computer to determine the current state of the print nozzles, including defective print nozzles. After the first phase, the print nozzle test patterns are modified by the computer on the basis of the current state of the print nozzles and, in a second phase, the modified print nozzle test patterns are printed, digitized and evaluated by the computer with regard to the determination of the current state of the print nozzles and defective print nozzles.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: March 31, 2020
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Andreas Fehlner, Thomas Wolf, Andreas Henn, Steffen Neeb, Nicklas Raymond Norrick, Jens Forche
  • Patent number: 10596814
    Abstract: According to an example, a printing apparatus may include two drop ejecting elements, a fluid circulating element, and a logic device. The logic device may determine whether one or both of a first drop ejecting element and a second drop ejecting element have been fired within a predetermined period of time prior to a current time. In response to the determination, the logic device may selectively transmit an output signal that is to cause the fluid circulating element to be selectively fired, in which the fluid circulating element is positioned to circulate fluid adjacent to both the first drop ejecting element and the second drop ejecting element.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: March 24, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Guan-Kwee Goh, Matthew A Shepherd, Mark Mackenzie
  • Patent number: 10576749
    Abstract: A liquid circulation device includes a liquid discharge head, a circulation channel through which a liquid is circulated via the liquid discharge head, a first liquid feed pump to supply the liquid to the liquid discharge head in a circulation direction, a second liquid feed pump to collect the liquid from the liquid discharge head in the circulation direction, a filter disposed in the circulation channel upstream from the first liquid feed pump and downstream from the second liquid feed pump in the circulation direction, and a decompression-side reverse channel to bypass the second liquid feed pump. One end of the decompression-side reverse channel is connected to the circulation channel upstream from the second liquid feed pump, and another end of the decompression-side reverse channel is connected to the circulation channel downstream from the filter in the circulation direction.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: March 3, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Yuta Moriwaki
  • Patent number: 10562319
    Abstract: An ink drying device dries ink injected onto a recording medium. The ink drying device includes a main body including a counter plate facing the recording medium and including an inner space, and a heat generator located in the inner space of the main body to generate heat. The counter plate is provided with a plurality of discharge holes. The ink drying device further includes a heat diffusion layer provided on an outer surface of the counter plate that faces the recording medium.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: February 18, 2020
    Assignee: ROLAND DG CORPORATION
    Inventor: Hisaya Matsuoka
  • Patent number: 10562318
    Abstract: Embodiments of the invention relate to techniques whereby sufficient compensation is provided to counteract the deleterious effects of a malfunctioning nozzle (i.e. which might create a white streak within the printed ink image) in a manner that is faithful to/harmonious with the underlying AM or FM screening. In this manner, it is possible to minimize the negative impact a failed or malfunctioning nozzle has upon the printed ink image.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: February 18, 2020
    Assignee: LANDA CORPORATION LTD.
    Inventors: Alon Siman-Tov, Shahar Klinger, Mattetyahu Litvak, David Tal
  • Patent number: 10532569
    Abstract: A valve jet printer includes a solenoid coil and a plunger rod having a magnetically susceptible shank. A first end of the shank and at least a portion of the shank are received within a bore of the solenoid coil. The printer also includes a nozzle including an orifice extending therethrough and a spring biasing a second end of the shank toward the nozzle. The second end of the plunger rod includes a tip formed of perfluoroelastomer (FFKM). The second end of the shank includes a cup-shaped cavity having a convex bottom and a circular side. The tip includes a concave base and an annular flange. In an assembled state, the concave base of the tip contacts the convex bottom of the cup-shaped cavity, and the end of the circular side opposite the convex bottom is rolled over the annular flange thereby securing the tip in the cup-shaped cavity.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: January 14, 2020
    Assignee: Matthews International Corporation
    Inventors: Hans Wallsten, Nils Johan Fredrik K├Ąck
  • Patent number: 10532564
    Abstract: According to an embodiment of this invention, a print control apparatus which controls a printhead, including a plurality of nozzle arrays each formed from a plurality of nozzles for discharging ink, for executing printing on a print medium by discharging inks of a plurality of colors from the plurality of nozzle arrays executes the following data processing. That is, image data is received from an external apparatus. One of a plurality of ASICs executes at least common data processing for generating print data corresponding to the plurality of colors with respect to the received image data, and another ASIC executes specific data processing related to each of the plurality of colors. Thus, print data to be output to the printhead is generated, and then transmitted to the printhead.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: January 14, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hironori Nakamura
  • Patent number: 10525721
    Abstract: A drop ejection system includes a working fluid source containing a working fluid, an ink source containing an ink that is immiscible with the working fluid, and at least one drop ejector array module. Each drop ejector array module includes a substrate and an array of drop ejectors disposed on the substrate. Each drop ejector includes a nozzle; an ink inlet connected to the ink source; a working fluid inlet connected to the working fluid source; a pressure chamber in fluidic communication with the nozzle, the ink inlet, and the working fluid inlet; and a heating element configured to selectively vaporize a portion of the working fluid to pressurize the pressure chamber for ejecting ink drops through the nozzle.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: January 7, 2020
    Assignee: RF PRINTING TECHNOLOGIES
    Inventors: Richard Mu, Yonglin Xie
  • Patent number: 10531189
    Abstract: A method for determining an utterance direction includes: executing a first calculation process that includes determining an utterance direction region based on a phase difference of each given frequency between a first frequency signal and a second frequency signal inputted to a first and second voice input section respectively, and performing a process of calculating a first phase difference deviation degree indicating the degree by which the phase difference of each given frequency is deviated from the utterance direction region; executing a second calculation process for calculating a second phase difference deviation degree from the first phase difference deviation degree of the plurality of frames; and executing an utterance direction determination process for determining that a user is uttering a voice to the first voice input section and the second voice input section when the second phase difference deviation degree is equal to or smaller than a first threshold value.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: January 7, 2020
    Assignee: FUJITSU LIMITED
    Inventor: Chikako Matsumoto