Patents Examined by Anh T Vo
  • Patent number: 10974527
    Abstract: An inkjet printing apparatus includes a print head configured to perform print operation, the print head having an ejection opening surface on which a plurality of ejection openings for ejecting ink are arrayed along an array direction, and a moving unit configured to move the print head between a printing position, at which the print operation is performed, and a standby position, at which the print operation is not performed. The moving unit moves the print head between the printing position and the standby position by performing rotational movement, in which the print head is rotated around a rotation axis that is parallel to the array direction, and linear movement, in which the print head is moved linearly.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: April 13, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuyo Ohashi, Yasuyuki Takanaka, Tetsuya Ishikawa, Seiji Ogasawara, Noriko Sato, Akira Kida, Noboru Shimoyama
  • Patent number: 10974519
    Abstract: An inkjet printer includes an inkjet head that ejects ink droplets, and a sub tank that stores an ink to be supplied to the inkjet head, where the sub tank is provided with an ink outflow port through which the ink flows out from the sub tank, and an ink inflow port through which the ink that flowed out from the ink outflow port and passed through a predetermined circulation path flows toward the sub tank. In the inkjet printer, the ink is flowed out from the ink inflow port and the ink that passed through the circulation path is flowed into the sub tank from the ink outflow port at a predetermined timing.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: April 13, 2021
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventors: Ryo Nishizawa, Akira Takatsu, Yoshikazu Furukawa, Kosuke Miyake
  • Patent number: 10974502
    Abstract: In a liquid discharge apparatus, a circuit substrate includes a first terminal group provided on a first surface and a second terminal group provided on a second surface. The first terminal group includes a first terminal to which a first signal is input, a second terminal to which a second signal is input, and a third terminal to which a reference voltage signal is input. The second terminal group includes a fourth terminal electrically coupled to the first terminal, a fifth terminal electrically coupled to the second terminal, and a sixth terminal electrically coupled to the third terminal. The first terminal and the second terminal are arranged side by side. The third terminal is not located between the first terminal and the second terminal. The fourth terminal and the fifth terminal are arranged. The sixth terminal is located between the fourth terminal and the fifth terminal.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: April 13, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Minoru Hasegawa, Hidekazu Uematsu
  • Patent number: 10974501
    Abstract: A liquid discharge apparatus includes a liquid discharge head, a driving signal output circuit that outputs a driving signal, and a circuit substrate that is electrically coupled to the driving signal output circuit and the liquid discharge head. The circuit substrate includes a first surface, a second surface different from the first surface, a first terminal group, and a second terminal group. The first terminal group includes a plurality of first terminals and is provided on the first surface. The second terminal group includes a plurality of second terminals and is provided on the second surface. The number of first terminals which are electrically coupled to the driving signal output circuit and to which the driving signal is input is smaller than the number of second terminals which are electrically coupled to the liquid discharge head and from which the driving signal is output.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: April 13, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hidekazu Uematsu, Minoru Hasegawa
  • Patent number: 10974513
    Abstract: An example of an ink supply includes an ink chamber containing a liquid ink, a salt chamber containing a salt solution, a separator positioned between the liquid ink and the salt solution, and a release mechanism. The separator completely separates the liquid ink from the salt solution prior to the release mechanism being triggered. The release mechanism has a triggered position and a retracted position. The triggered position causes the separator to at least partially open, and enables the liquid ink and the salt solution to be combined to form a mixture.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: April 13, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jayprakash C. Bhatt, Larrie A. Deardurff, Milton Neill Jackson
  • Patent number: 10967661
    Abstract: A plastic card printer that is provided with a printhead guard that is movable between a covering position, where the printhead guard covers one or more sensitive portions of a printhead of the plastic card printer, and a non-covering position, where the printhead guard does not cover the one or more sensitive portions of the printhead thereby allowing the printhead to perform a printing function on a plastic card. The printhead guard can be at the covering position when the printhead is at a non-printing position, for example during servicing of the card printer, to protect the one or more sensitive elements when the printhead is at the non-printing position, and the printhead guard can be at the non-covering position when the printhead is at a printing position where the printhead is ready to perform printing.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: April 6, 2021
    Assignee: Entrust Corporation
    Inventors: Scott Svensson, Bryan Hoeve, Donald Galles
  • Patent number: 10967636
    Abstract: A head chip capable of suppressing the degradation of the reliability, and a liquid jet head and a liquid jet recording device using the head chip are provided. The head chip includes an actuator plate having a plurality of ejection channels respectively communicated with nozzle holes and electrodes disposed on inner walls of the respective ejection channels, a bonded plate to be bonded to the actuator plate, and having a liquid contact surface which liquid entered the ejection channels has contact with, an adhesive layer disposed between the bonded plate and the actuator plate, and adapted to bond the bonded plate and the actuator plate to each other, and a protective film adapted to cover continuously from inner walls of the respective ejection channels to at least a part of the liquid contact surface via an end surface of the adhesive layer exposed on the ejection channel side.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: April 6, 2021
    Assignee: SII PRINTEK INC.
    Inventor: Hitoshi Nakayama
  • Patent number: 10960666
    Abstract: According to an embodiment of the present disclosure, to improve a layout efficiency of an element substrate to be integrated in a printhead and reduce a production cost of the element substrate, a driving method and a size of a first driver transistor used for driving a first heater for ink circulation and a driving method and a size of a second driver transistor used for driving a second heater for discharging ink to print are optimized, respectively. More specifically, the first driver transistor and the second driver transistor have multi-finger configurations, gate widths of the multi-finger configurations are equal to each other, and the number of fingers forming each first driver transistor is different from the number of fingers forming each second driver transistor.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: March 30, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryo Kasai, Kazuhiro Yamada, Takuro Yamazaki, Yoshiyuki Nakagawa, Toru Nakakubo
  • Patent number: 10953662
    Abstract: The present application discloses an inkjet printing device in which a nozzle that caused a print defect, such as an ejection failure, is reliably identified by a simple process even when an end of a test pattern is not recorded. In a configuration example of the inkjet printing device, a test pattern TPat to be printed for identifying a recording head nozzle that caused a print defect consists of an ejection failure detection pattern DPat and a position detection pattern PPat. The position detection pattern PPat consists of a position mark PM4 and pairs of position marks (PM1 and PM1; PM2 and PM2; and PM3 and PM3) symmetrically arranged with respect to the position mark PM4 in a sheet width direction. Each position mark consists of three linear patterns having the same length and disposed at equal intervals. Moreover, the position detection pattern PPat is configured such that linear pattern length decreases with increasing distance from a center position mark.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: March 23, 2021
    Assignee: SCREEN HOLDINGS CO., LTD.
    Inventor: Asuka Muramatsu
  • Patent number: 10953657
    Abstract: An ink jet printing apparatus includes a radiation-curable ink having a surface tension of 25.0 mN/m or less, and a printing head including a nozzle face having an opening of a nozzle through which the radiation-curable ink is ejected, and a liquid-repellent film on the nozzle face. The liquid-repellent film enables the radiation-curable ink to forms a contact angle of 60.0 degrees or more therewith.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: March 23, 2021
    Inventors: Midori Sekine, Tomohiro Numajiri, Keitaro Nakano
  • Patent number: 10953676
    Abstract: Including a pair of support members sandwiching a roll-like print medium and a pair of swing members each including a holding pin for rotatably holding the print medium, mounted on the support member, capable of swing, respectively, and swinging in the direction where the pair of holding pins gets closer to each other by being brought into contact with the print medium, the swing member being mounted at a position biased to a taking-out direction side of the print medium in the support member and a length of the swing member in a swing radial direction being smaller than a length of the support member in a taking-in/out direction of the print medium.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: March 23, 2021
    Assignee: SATO HOLDINGS KABUSHIKI KAISHA
    Inventor: Hideyuki Maeda
  • Patent number: 10946649
    Abstract: In an example implementation, a method of printing with an emulsion, includes generating an emulsion of non-water based fluid and water based fluid on a printhead, and ejecting the emulsion through a printhead nozzle.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: March 16, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alexander Govyadinov, Craig Olbrich
  • Patent number: 10946665
    Abstract: In one example, a method for determining an out-of-liquid condition of a liquid supply for an inkjet printer. The method includes acquiring, during printing, a sequence of data points, each data point comprising a differential liquid/air pressure at the liquid supply measured with a sensor and a corresponding cumulative amount of liquid delivered from the liquid supply. The method further includes generating a curve using the data points. The method also includes determining, from a predetermined characteristic of the curve, whether the out-of-liquid condition exists. The characteristic is independent of at least one of a gain and an offset of the sensor.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: March 16, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Matthew Jason Janssen, James William Ring, James Ronald Cole
  • Patent number: 10946640
    Abstract: A transfer apparatus includes a head unit (210C, 210K) to process an object (W) transferred in a transfer direction, a first support member disposed upstream in the transfer direction with respect to a process position to support the object, a second support member disposed downstream in the transfer direction of the process position to support the object, a surface detector between the first and second support members to detect first surface information of the object, an upstream surface detector disposed upstream in the transfer direction with respect to the surface detector to detect second surface information of the object, an edge detector disposed closer to the upstream surface detector than the surface detector in the transfer direction to detect an edge of the object, and a controller to move the head unit based on detection results of the surface detector and the upstream surface detector and a detection result of the edge detector.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: March 16, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Taiichi Katoh, Tomoaki Hayashi
  • Patent number: 10940693
    Abstract: Disclosed herein are sensor circuits for a replaceable print material container, the sensor circuit to communicate with a printer logic circuit. An example sensor circuit includes a first sensor to detect at least one of a pneumatic stimulus or a pressurization applied by a printer, a second sensor, and an interface to communicate with at least one of a voltage source or a data source of the printer logic circuit. The example sensor circuit also includes logic circuitry, responsive to a class parameter, to: (a) output a first signal based on at least one of the pneumatic stimulus or the pressurization sensed by the first sensor when the class parameter is a first class parameter; and (b) output a second signal based on at least one of an output of the second sensor, different data, or a different algorithm when the class parameter is a second class parameter.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: March 9, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: James Michael Gardner, Scott A. Linn, Stephen D. Panshin, Jefferson P. Ward, David Owen Roethig, David N. Olsen, Anthony D. Studer, Michael W. Cumbie, Sirena Chi Lu
  • Patent number: 10940708
    Abstract: It is disclosed a substrate selection method wherein the printer comprises a feeding mechanism including a feeding roller to receive a substrate roll and a media advance roller to receive a substrate from the substrate roll, the method comprising: actuating the feeding roller or the media advance roller; measuring a feeding mechanism parameter on the feeding roller or the media advance roller; calculating a substrate parameter in view of the feeding mechanism parameter; determining from a table a substrate type of in view of the substrate parameter; and selecting a preset on the printer in view of the substrate type.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: March 9, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Aleix Fort Filgueira, Antonio Gracia Verdugo, Carles Flotats Villagrasa
  • Patent number: 10940688
    Abstract: An apparatus includes a reservoir and a printhead. The printhead includes a support structure including a deformable portion defining at least a top surface of a pumping chamber, a flow path extending from the reservoir to the pumping chamber to transfer fluid from the reservoir to the pumping chamber, and an actuator disposed on the deformable portion of the support structure. A trench is defined in a top surface of the actuator. Application of a voltage to the actuator causes the actuator to deform along the trench, thereby causing deformation of the deformable portion of the support structure to eject a drop of fluid from the pumping chamber.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: March 9, 2021
    Assignee: FUJIFILM Dimatix, Inc.
    Inventors: Christoph Menzel, Shinya Sugimoto, Mats G. Ottoson, Wayne Liu
  • Patent number: 10940701
    Abstract: A liquid discharge apparatus includes a conveying part configured to convey a medium in a conveying direction. A discharge head is configured to discharge a droplet onto a medium carried by the conveying part. A heating part is arranged at the downstream of the discharge head and configured to heat a medium while contacting with the medium attached with a droplet discharged by the discharge head. The heating part is arranged at a position contacting with at least part of the droplet present on the surface of the medium.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: March 9, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takuya Hamada, Kenichi Ogawa
  • Patent number: 10933646
    Abstract: A method of authenticating a consumable or detachable element of a continuous inkjet printer comprising: the controller of the printer generating a 1st item of random information that is dispatched to an authentication circuit of the element; encrypting the 1st item of information by the authentication circuit using a 1st encryption algorithm and a 1st secret key to form a 1st item of encrypted random information; dispatching the 1st item of information to the controller; encrypting the 1st item of information by the controller using a 2nd encryption algorithm and a 2nd secret key to form a 2nd item of encrypted random information; comparing the 1st item of encrypted random information with the 2nd encrypted item of random information to authenticate the consumable element; and if the consumable element is authenticated, dispatching at least one part of a 3rd key, termed the shared key, by the element to the printer.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: March 2, 2021
    Assignee: DOVER EUROPE SÀRL
    Inventor: Damien Bonneton
  • Patent number: 10933635
    Abstract: Provided is a liquid ejection head substrate including: a substrate; a liquid ejection element that generates liquid ejection energy on the substrate; and an electrode pad that is electrically connected to the liquid ejection element, in which the electrode pad includes a barrier metal layer and a bonding layer on the barrier metal layer, and an end side surface of the barrier metal layer is covered with a silicon-based film containing carbon.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: March 2, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Souta Takeuchi, Takeru Yasuda, Kazuaki Shibata, Taichi Yonemoto