Patents Examined by Shelby l Fidler
  • 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: 10843484
    Abstract: A shift circuit operating by using a capacitor, a printing head and printing device thereof. The shift circuit includes a power signal line, a grounding signal line, a first shift signal line, a second shift signal line, a plurality of diodes, a plurality of grounding resistors, a plurality of thyristors, a cascaded resistor and a capacitor. The capacitor connects between the gate of the first thyristor and the first shift signal line. Therefore, the capacitor is charged during the off time of the period of the first clock signal, and starts to be discharged from an edge between the on time and the off time of the period of the first clock signal. During the on time of the period, the capacitor is fully discharged. Such that, the gate voltage of the first thyristor is sufficient to turn on the first thyristor and will not affect the following shift action.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: November 24, 2020
    Assignee: AVISION INC.
    Inventor: Jian-Zhi Wang
  • Patent number: 10843493
    Abstract: An image printing apparatus includes a print unit, a tray moving unit that moves a tray for receiving a print medium discharged in a first direction, in a second direction crossing the first direction, a lever moving unit that moves a lever that contacts to the print medium stacked on the tray and is rotatable according to an amount of stacking between a first position at which the lever is contactable to the stacked print medium and a second position at which the lever is separated from the stacked print medium. A control unit causes the tray moving unit to move the tray in the second direction in a state in which the control unit has caused the lever moving unit to move the lever to the second position.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: November 24, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Norio Sakurai, Yuki Emoto, Toshiaki Somano, Kosuke Yamamoto
  • Patent number: 10843470
    Abstract: Inkjet recording is performed by using an inkjet recording apparatus including an ink circulation channel for circulating a first ink, an ink supply channel for supplying a second ink into the ink circulation channel, and a recording head communicating with the ink circulation channel. The apparatus is configured to eject an aqueous ink including the first ink and the second ink from the recording head, thereby recording an image on a recording medium. The content (% by mass) of water in the first ink and the content (% by mass) of water in the second ink differ from each other by 2.00% by mass or more. The first ink contains a resin, and the second ink contains a first water-soluble organic solvent having a Log P value of less than ?1.10.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: November 24, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinsuke Tsuji, Yukako Tamanuki
  • Patent number: 10836161
    Abstract: A liquid ejecting head including a head unit including a liquid ejecting unit that ejects a liquid from a nozzle, a drive circuit that drives the liquid ejecting unit, a containing body in which a space that stores the liquid is formed; a fixing plate which contacts the head unit on a nozzle side of the head unit; and a support that contacts the fixing plate and that supports the head unit, in which the support is formed of a material having a thermal conductivity higher than that of the containing body.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: November 17, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Shunsuke Watanabe
  • Patent number: 10828891
    Abstract: An ink jet head includes an actuator, a driver IC, a first capacitor, a second capacitor, and a fuse. The actuator is configured to cause ink to be discharged from nozzles. The driver IC is configured to drive the actuator. The first capacitor is connected between a ground line and a first node of a power supply line connected to the driver IC. The second capacitor is connected between a ground line and a second node of the power supply line. A capacitance of the second capacitor is less than a capacitance of the first capacitor. The fuse is on the power supply line between the first node and the second node.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: November 10, 2020
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Teruyuki Hiyoshi
  • Patent number: 10814630
    Abstract: Provided herein are a jet hole plate, a liquid jet head, a liquid jet recording apparatus, and a method for manufacturing a jet hole plate that can achieve a long life. A jet hole plate according to an embodiment of the present disclosure is a jet hole plate for use in a liquid jet head. The jet hole plate includes a metal substrate having provided therein a plurality of jet holes. The metal substrate has a principal surface having outlets for the jet holes. The principal surface has a surface roughness (arithmetic mean roughness Ra) that is smaller in outlet edge regions of the jet holes than in surrounding regions around the outlet edge regions.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: October 27, 2020
    Assignee: SII PRINTEK INC.
    Inventors: Masakazu Hirata, Kenji Takano, Tomoki Sodetai
  • Patent number: 10814622
    Abstract: A liquid ejection apparatus is provided that includes a plurality of liquid ejection head units that are configured to eject liquid onto a conveyed object being conveyed; a detection unit that is provided with respect to each liquid ejection head unit of the plurality of liquid ejection head units and is configured to output a detection result indicating at least one of a position, a moving speed, and an amount of movement of the conveyed object with respect to a conveying direction of the conveyed object; and a control unit configured to control the each liquid ejection head unit of the plurality of liquid ejection head units to eject liquid at a timing based on a plurality of the detection results of a plurality of the detection units.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: October 27, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Mitsunobu Gohda, Tsuyoshi Nagasu, Koichi Kudo, Tomoaki Hayashi, Masayuki Sunaoshi, Masahiro Mizuno
  • Patent number: 10807367
    Abstract: A liquid discharge device includes a head array, a support body, a moving assembly, and a head array fixing device. The head array fixing device fixes the head array at an approach position. The head array fixing device includes a gripping target member and a gripping member. The gripping target member is disposed on one of the head array and the support body and extending in a direction in which the head array approaches or retracts from a recording region of a recording medium. The gripping member is disposed on another of the head array and the support body, to grip the gripping target member to position the gripping target member in a conveyance direction and a width direction of the recording member. A gripping position at which the gripping member grips the gripping target member is adjustable in at least one of the conveyance direction and the width direction.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: October 20, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hiroaki Miyagawa, Yuichiro Maeyama
  • Patent number: 10800168
    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: October 6, 2016
    Date of Patent: October 13, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Boon Bing Ng, Hang Ru Goy
  • Patent number: 10800170
    Abstract: Devices and methods are provided for ejecting a droplet from a reservoir using focused acoustic radiation having a plurality of nonsimultaneous and discrete frequency ranges. Such frequency ranges may be used to control droplet volume and/or velocity. Optionally, satellite fluid ejection from the reservoir is suppressed.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: October 13, 2020
    Assignee: Labcyte Inc.
    Inventors: Richard G. Stearns, Mitchell W. Mutz, Richard N. Ellson
  • Patent number: 10792914
    Abstract: An image recording device and an image recording method capable of matching landing positions between droplet types in a consecutive ejection drive method are provided. The object is resolved by an image recording device in which a drive waveform for forming a dot of a small droplet is a drive waveform for ejecting a liquid droplet by a first ejection waveform element arranged in a first half of one drive cycle, and a drive waveform for forming a dot of a medium droplet is a drive waveform for ejecting the liquid droplet by the first ejection waveform element and a second ejection waveform element arranged after the first ejection waveform element in time series, and the liquid droplet ejected by the first ejection waveform element and the liquid droplet ejected by the second ejection waveform element are not combined while reaching onto a recording medium.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: October 6, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Yasutoshi Hirabayashi
  • Patent number: 10792925
    Abstract: An ink cartridge includes a tank main body that contains ink, a transparent member that forms at least part of the tank main body and transmits light, and a reference plate that is disposed in the tank main body and in a position facing the transparent member and forms, along with the transparent member, an inflow space which is located between the transparent member and the reference plate and into which the ink flows.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: October 6, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Ryohei Kuri
  • 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: 10780693
    Abstract: According to one embodiment, an inkjet head includes a pressure chamber connected to a nozzle, an actuator corresponding to the pressure chamber and configured to change a volume of the pressure chamber, and a drive circuit configured to drive the actuator causing two or more ink droplets to be consecutively discharged from the nozzle. The drive circuit applies in sequence a first drive waveform for expanding the pressure chamber, a second drive waveform having a first pulse width, a third drive waveform for releasing the pressure chamber from an expanded state, a fourth drive waveform having a second pulse width, and a fifth drive waveform for contracting the pressure chamber.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: September 22, 2020
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Noboru Nitta
  • Patent number: 10780701
    Abstract: A printer includes a head including an ink ejecting unit for ejecting ink from a nozzle, a waste liquid flow path that is a flow path of ink sucked from the nozzle, a suction unit that performs an ink suction operation of sucking the ink from the nozzle via the waste liquid flow path, and a cleaning operation of sucking cleaning liquid from the nozzle via the waste liquid flow path, and a control unit that controls the suction unit so as to vary a suction amount of the cleaning liquid depending on an elapsed time from when the ink suction operation is performed, when the cleaning operation is performed.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: September 22, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Hiroya Fukuta, Takeshi Yoshida
  • Patent number: 10759178
    Abstract: A liquid supply unit is provided with a liquid supply part, an outer peripheral wall, contact portions and a positioning portion.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: September 1, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Shun Oya, Taku Ishizawa, Atsushi Kobayashi
  • Patent number: 10759187
    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: February 11, 2019
    Date of Patent: September 1, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Kohei Terada
  • Patent number: 10759201
    Abstract: In an example implementation, a method of adjusting frame length in an inkjet web press includes measuring a time T1 between a first sensor sensing a first mark and a second sensor sensing a second mark, and measuring a time T2 between the second sensor sensing the second mark and the first sensor sensing a next first mark. The method includes adjusting a gap between printed frames when T1 does not equal T2.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: September 1, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Carlos Millan-Lorman, Jason C. Hower, Cesar Fernandez, Timothy Wagner
  • Patent number: 10752026
    Abstract: There are provided a liquid jetting apparatus and a method of coping with the floating of a medium where power at the time of coping with the floating of a medium can be suppressed. After the floating of a medium (36) is detected, a first movement parameter that represents the speed or acceleration of a first liquid jet head (56C) during movement is set, a second movement parameter that represents the magnitude of speed of a second liquid jet head (56M), which is smaller than the magnitude of the speed of the first liquid jet head, or a second movement parameter that represents a magnitude of acceleration of the second liquid jet head, which is smaller than the magnitude of the acceleration of the first liquid jet head, is set, an operation of the first liquid jet head is started at a first timing, and an operation of the second liquid jet head is started at the same timing as the first timing or at a second timing when the first liquid jet head does not yet reach a first retreat position.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: August 25, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Makoto Takeuchi