Patents Examined by Henok Legesse
  • Patent number: 10272681
    Abstract: A liquid jet head includes an actuator plate on which are formed ejection channels which extend in a channel extending direction and are filled with ink, and dummy channels which extend in the channel extending direction and are not filled with ink. A nozzle plate is laminated on the actuator plate and includes nozzle holes each communicating with a corresponding ejection channel at a central part in the channel extending direction of the ejection channel. The actuator plate includes a first channel row and a second channel row each of which includes the ejection channels and the dummy channels alternately arranged side by side in the X direction, the first and second channel rows being spaced apart in the channel extending direction. The ejection channels and the dummy channels are each symmetric with respect to a plane that passes through the center in the channel extending direction and perpendicular to the channel extending direction.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: April 30, 2019
    Assignee: SII PRINTEK INC.
    Inventors: Daichi Nishikawa, Yoshinori Domae
  • Patent number: 10259231
    Abstract: A liquid discharge head, includes a nozzle from which liquid is discharged, an individual chamber communicating with the nozzle, a supply channel communicating with the individual chamber, the liquid flowing through the supply channel in a first direction, and a filter disposed upstream of the supply channel, the liquid filtering through the filter in a second direction. The first direction intersects the second direction, and the supply channel includes an inlet disposed at a position overlapping the filter in the second direction.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: April 16, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshimichi Odaka, Takahiro Yoshida, Takakazu Kihira, Takayuki Nakai
  • Patent number: 10259216
    Abstract: A semiconductor device is provided. The device comprises discharge units each including a discharge element and a driving unit configured to drive the discharge element, and a terminal unit configured to supply power to the discharge units via a wiring line. The discharge units include a first discharge unit including a first discharge element of the discharge elements and a first driving unit of the driving units and a second discharge unit including a second discharge element of the discharge elements and a second driving unit of the driving units. A length of a current path from the terminal unit to the first discharge unit is longer than a length of a current path from the terminal unit to the second discharge unit and a resistance of the first driving unit is lower than a resistance of the second driving unit.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: April 16, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Makoto Takagi
  • Patent number: 10252517
    Abstract: An image forming apparatus includes an image forming device; an imaging device; and at least one processor including a pattern forming unit to cause a recording head to form a pair of first marks, with first and second nozzles disposed at a first distance from each other in a direction of conveyance of a recording medium, while the recording head moves in a first direction and cause the recording head to form a second mark while the recording head moves in a second direction, a position detector to detect positions of the first and second marks in a captured image, a ratio calculator to calculate a ratio between a distance between the first marks in the captured image and a deviation of the second mark in the captured image, and distance calculator to calculate a distance of the deviation based on the first distance and the ratio.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: April 9, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Kahei Nakamura, Masaya Kawarada, Kohta Aoyagi, Suguru Yokozawa, Nobuyuki Satoh
  • Patent number: 10245850
    Abstract: Apparatus to provide heated gas to punted media. The apparatus includes a housing including: an inlet to receive gas from a fan; and an outlet defining at least one slot shaped nozzle to provide heated gas to printed media, the housing defining a direct path between the inlet and the outlet. The apparatus also includes a heater positioned within the housing to heat gas from the inlet.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: April 2, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Nuria Espinar Lacueva, Martin Urrutia Nebreda, Joseba Ormaechea Saracibar
  • Patent number: 10239321
    Abstract: A liquid ejection head for ejecting a liquid, including a flow passage member, which is composed of a first resin and which is provided with a flow passage configured to come into contact with the liquid, and a plurality of resin-coated members having a core-sheath structure composed of a filler constituting an inner core and a second resin constituting an outer core, wherein the plurality of the resin-coated members are contained in the flow passage member.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: March 26, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Isao Imamura, Masashi Miyagawa
  • Patent number: 10220611
    Abstract: A semiconductor device is provided. The device comprises discharge units each including a discharge element and a driving unit configured to drive the discharge element, and a terminal unit configured to supply power to the discharge units via a wiring line. The discharge units include a first discharge unit including a first discharge element of the discharge elements and a first driving unit of the driving units and a second discharge unit including a second discharge element of the discharge elements and a second driving unit of the driving units. A length of a current path from the terminal unit to the first discharge unit is longer than a length of a current path from the terminal unit to the second discharge unit and a resistance of the first driving unit is lower than a resistance of the second driving unit.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: March 5, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Makoto Takagi
  • Patent number: 10214036
    Abstract: A sheet winding mechanism includes a detachable winding core, a rotating body coupled to a first end portion of the winding core to rotate the winding core, and a non-rotating body against which a second end of the winding core is pressed. The winding core includes a winding core main body, a first portion which is located at the first end portion and is coupled to the rotating body, a second portion which is located at the second end portion, is movable in the axial direction, and presses against the non-rotating body, a first elastic body which urges the second portion outward along the axial direction, and a sheet holding portion configured to hold an end portion of a sheet. When the rotating body rotates the winding core while the sheet holding portion is holding the end portion of the sheet, the sheet is wound around the winding core.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: February 26, 2019
    Assignee: Toshiba TEC Kabushiki Kaisha
    Inventors: Myo Nyunt Kyaw, Min Wai Khaing, Leonard Tio, Tsuyoshi Sanada
  • Patent number: 10214035
    Abstract: Provided are a recording apparatus, when a medium is discharged from a recording apparatus main body, which can achieve both of appropriate mounting of a medium in which the leading edge thereof is curled on a medium receiving tray, and reduction of damage to a medium when mediums of different sizes are mixed on the medium receiving tray.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: February 26, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Hiroshi Ue, Koji Migita, Satoshi Iwaya, Yasushi Akatsuka, Hiroshi Shiohara
  • Patent number: 10207518
    Abstract: A method for compensating for failed printing nozzles in an inkjet printing machine uses a computer to provide an increased ink drop volume of adjacent nozzles. All existing printing nozzles are measured regarding print failure and deviation of a printed dot beyond a specific threshold, so that the printing nozzles are marked either as functioning, failed, or printing a dot deviating in a direction transverse to the printing direction, and the results are saved on the computer. The computer hides all functioning printing nozzles and marks all remaining isolated printing nozzles as failed nozzles. The computer groups adjacent remaining printing nozzles by marking nozzles printing a dot deviating in a direction transverse to the printing direction as functioning printing nozzles contributing to the compensation or as failed printing nozzles in accordance with a rule, and the computer compensates for all printing nozzles having been marked as failed.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: February 19, 2019
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Hans Koehler, Ralf Tita
  • Patent number: 10207520
    Abstract: The invention was made in order to provide a multi-color printing method of a plastic film wherein multi-color print can be made fast without requiring complex operations, while functions of the anchor-coating layer and the shielding are ensured sufficiently, and provides a method of multi-color printing on a plastic film, which comprises an anchor-coating process wherein an anchoring agent is applied to the plastic film by a gravure roll to form an anchor-coating layer which acts as receptive layer to multi-color inks, a multi-color printing process wherein multi-color print is provided on said anchor-coating layer by continuous ink jet printers, a shielding layer-coating process wherein a titanium white ink is applied to said multi-color print by a gravure roll to form a shielding layer, and drying processes being provided after said anchor-coating process, multi-color printing process and shielding layer-coating process, respectively, and an apparatus therefor.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: February 19, 2019
    Assignee: NAKAMOTO PACKS CO., LTD.
    Inventors: Shunichiro Nakamoto, Masaru Masutani
  • Patent number: 10195856
    Abstract: In one example, a wedge shaped carriage to carry a printhead back and forth over a print substrate during printing.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: February 5, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Xavier Quintero Ruiz, Luis Garcia-Maurino, Mireia Garcia, Carmen Blasco
  • Patent number: 10195854
    Abstract: A print device includes a processor and a memory. The memory storing computer-readable instructions which, when executed by the processor, perform processes. The processes include covering processing controlling a cap into a covering state in which the cap covers a nozzle. The processes include first purge processing purging, in a state in which the cap is in the covering state and a supply valve is closed, an ink from the nozzle by operating a pump at a first rotation speed. The processes include injection processing injecting, after the first purge processing and in a state in which the cap is in the covering state and the supply valve is open, the cleaning liquid into the interior of the cap by operating the pump at a second rotation speed to cause the cleaning liquid to soak a nozzle face.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: February 5, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Katsunori Nishida, Takao Hyakudome, Goro Okada, Haruo Kobayashi
  • Patent number: 10189273
    Abstract: A head unit includes: nozzle chips which are arranged side by side in a first direction, each of the nozzle chips having a jetting surface and nozzles aligned in a predetermined direction parallel to the jetting surface and crossing both of the first direction and a second direction orthogonal to the first direction; a holder configured to hold the nozzle chips from a side opposite to the jetting surface; and a fixing plate to which the nozzle chips are fixed and which is arranged on a side facing the jetting surface of each of the nozzle chips, wherein the holder has first walls arranged in the second direction so as to sandwich the nozzle chips therebetween; each of the first walls has first projections formed on an end surface thereof facing the fixing plate; and the first projections make contact with the fixing plate.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: January 29, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hideki Hayashi, Keita Sugiura, Taisuke Mizuno
  • Patent number: 10189047
    Abstract: The examples provide a fluid ejection apparatus that includes a fluid slot; a passage, a drop generator and a fluid circulation pump. The passage has an inlet connected to the fluid slot and an outlet spaced from the inlet and connected to the fluid slot. The passage as a first portion extending in a first direction from the inlet and a second portion extending from the first portion to the outlet in a second direction, opposite to the first direction. A filter is within the fluid slot across the inlet.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: January 29, 2019
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Alexander N. Govyadinov, Paul A. Richards
  • Patent number: 10189256
    Abstract: A liquid ejecting apparatus includes a head that ejects an ink while moving in an X direction, a plurality of liquid retention portions that are arranged in a direction that intersects the X direction and retain the ink, a mounting portion in which the plurality of liquid retention portions are mounted, and a plurality of flow channels that are provided in the mounting portion and supply the ink to the head from the plurality of liquid retention portions, in which the plurality of liquid retention portions include a liquid retention portion that retains a black ink, and, among flow channel lengths of the plurality of flow channels, the flow channel length of a flow channel that supplies the black ink is shortest.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: January 29, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Haruki Kobayashi
  • Patent number: 10185900
    Abstract: A method in a page-wide array printing apparatus comprising at least first and second printing dies that overlap in a page width direction comprises the steps of calibrating the printing apparatus in a media advance direction to a higher resolution than the page width direction, the media advance direction being perpendicular to the page width direction, and using printing masks to control the operation of a plurality of nozzles in an overlap area between the first and second printing dies to reduce any visible defects caused by dot placement errors in the page width direction.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: January 22, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Marcos Casaldaliga Albisu, M. Isabel Borell Bayona, Leticia Rubio
  • Patent number: 10173429
    Abstract: A liquid ejecting head includes a head body which has a nozzle opening for ejecting a liquid and a first wiping surface to be wiped by a wiper; and a target wiping member which has a second wiping surface to be wiped by the wiper, wherein the head body and the target wiping member are lined up via a gap so as to face in the same direction as the first wiping surface and the second wiping surface, and an elastic member is elastic deformed and held in the gap to block the gap on a side of the first and second wiping surface.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: January 8, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Masahisa Nawano, Taiki Hanagami, Isamu Togashi
  • Patent number: 10160233
    Abstract: A printer having a beltless guide for guiding print media around a curved media feed path. The guide includes: first and second opposed guide surfaces for guiding print media therebetween; and a chicane corresponding to a point of inflection in the curved media feed path. The media path does not follow a curvature of the chicane and the chicane is configured to transfer print media from contact with the second surface to contact with the first surface or vice versa.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: December 25, 2018
    Assignee: MEMJET TECHNOLOGY LIMITED
    Inventors: David Jensen, Paul Mackey, Saminda Jayatileke
  • Patent number: 10160209
    Abstract: An example system includes a flexible carrier and a printhead flow structure. The printhead flow structure includes a flex circuit including a carrier wafer and at least one printhead die electrically coupled to the flex circuit. The carrier wafer is bonded to the flexible carrier with thermal release tape, the thermal release tape to debond substantially completely from the flex circuit at a debonding temperature via bending of the flexible carrier.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: December 25, 2018
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Chien-Hua Chen, Michael G. Groh, Michael W. Cumbie