Nozzles Patents (Class 347/47)
  • Patent number: 11905615
    Abstract: In one embodiment, a method for manufacturing an aperture plate includes depositing a releasable seed layer above a substrate, applying a first patterned photolithography mask above the releasable seed layer, the first patterned photolithography mask having a negative pattern to a desired aperture pattern, electroplating a first material above the exposed portions of the releasable seed layer and defined by the first mask, applying a second photolithography mask above the first material, the second photolithography mask having a negative pattern to a first cavity, electroplating a second material above the exposed portions of the first material and defined by the second mask, removing both masks, and etching the releasable seed layer to release the first material and the second material. The first and second material form an aperture plate for use in aerosolizing a liquid. Other aperture plates and methods of producing aperture plates are described according to other embodiments.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: February 20, 2024
    Assignee: Stamford Devices Limited
    Inventor: Hong Xu
  • Patent number: 11840084
    Abstract: The print head includes a nozzle layer with a plurality of nozzles for printing ink onto a target. It further includes ventilation openings including blow openings for feeding a gas to the region between the nozzles and the target as well as suction openings for feeding gas away from this region. This allows maintaining a desired atmosphere at the region in order to better control the printing process.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: December 12, 2023
    Assignee: SCRONA AG
    Inventor: Patrick Galliker
  • Patent number: 11813861
    Abstract: A method of printing an image from a printhead module having a plurality of horizontal nozzle rows. Each nozzle row has a main row portion and a corresponding dropped row portion vertically offset from the main row portion. The method includes the steps of: determining a predetermined delay for the dropped row portions based on the offset, a print speed and a print resolution; allocating dot data for image lines to respective nozzle rows based on the print speed and print resolution, sending first dot data for each main row portion and second dot data for each dropped row portion to the printhead module; and firing nozzles from the main row portions and dropped row portion in a predetermined sequence. Each dropped row portion is fired independently of its corresponding main row portion and delayed relative to its corresponding main row portion by the predetermined delay.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: November 14, 2023
    Assignee: Memjet Technology Limited
    Inventors: Julie Catherine Hogan, Ronan Palliser, John Sheahan, Brian Brown, Caitriona Forbes, Pat Lehane
  • Patent number: 11548235
    Abstract: A laser welding system for joining first and second thermoplastic workpieces, and including a clamp, an actuator, and a laser source. The clamp includes first and second clamping structures positioned together to engage opposite sides of the workpieces when they adjoin each other. The first clamping structure has a non-flat or irregular surface, facing the first workpiece. The actuator causes the clamping structures to press the first and second workpieces together. The laser source applies laser radiation having a wavelength of 2 microns toward the workpieces to be joined, while they are pressed together by the clamp, to melt irradiated portions of the workpieces to one another. The first clamping structure transmits substantially all of the energy of the laser radiation through the material. The first workpiece has a non-flat or irregular surface facing the first clamping structure, which substantially conforms with the surface of the first clamping structure.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: January 10, 2023
    Assignee: Dukane IAS, LLC
    Inventors: Alexander Savitski, Paul H. Cathcart, Grzegorz Zdzislaw Bugaj
  • Patent number: 11552247
    Abstract: An organic vapor deposition device comprises a print head, comprising a source channel, in fluid communication with a flow of carrier gas and a quantity of organic source material configured to mix with the carrier gas, a nozzle having a deposition outlet, in fluid communication with the source channel, and a shutter configured at least to open and close the deposition outlet, wherein the print heat is configured to allow the flow of carrier gas and the organic source material exit the deposition outlet when the shutter is in an open position, and to prevent the flow of carrier gas and the organic source material from exiting the deposition outlet when the shutter is in a closed position. A method of manufacturing a device comprising an organic feature on a substrate is also described.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: January 10, 2023
    Assignee: The Regents of the University of Michigan
    Inventors: Stephen R. Forrest, Jeffrey A. Horowitz, David J. Bishop
  • Patent number: 11485159
    Abstract: A liquid discharge apparatus includes an apparatus body, a liquid discharge device configured to discharge a liquid, a carriage in the apparatus body, the carriage configured to movably mount the liquid discharge device, a first storage container detachably attached to the carriage, the first storage container configured to store a first liquid, and a second storage container detachably attached to the apparatus body, the second storage container configured to store a second liquid different from the first liquid.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: November 1, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tetsu Morino, Takeyuki Kobayashi
  • Patent number: 11413870
    Abstract: A liquid ejecting head includes first nozzles configured to eject a liquid in an ejecting direction, a first nozzle forming surface in which openings of the first nozzles are formed, a first surface being adjacent to the first nozzle forming surface when viewed in an opposite direction to the ejecting direction and provided in the ejecting direction relative to the first nozzle forming surface, and a first film member having water repellency on a surface directed to the ejecting direction and being detachably provided to the first surface in such a way as to expose the first nozzle forming surface in the ejecting direction.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: August 16, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Shigeki Suzuki, Noriaki Yamashita, Manabu Munakata, Shinichi Tsubota
  • Patent number: 11400717
    Abstract: A liquid discharge apparatus includes a liquid container and a liquid discharge head. The liquid container is configured to contain liquid. The liquid discharge head is configured to discharge the liquid. The liquid discharge head includes a nozzle row in which a plurality of nozzles are aligned. The nozzle row includes a first region in which nozzles are aligned at a first nozzle pitch, a second region in which nozzles are aligned at a second nozzle pitch larger than the first nozzle pitch, and a third region in which nozzles are arranged at a third nozzle pitch smaller than the first nozzle pitch. A volume of the liquid discharged from the second region is larger than a volume of the liquid discharged from the first region. A volume of the liquid discharged from the third region is smaller than the volume of the liquid discharged from the first region.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: August 2, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventor: Ryohta Yoneta
  • Patent number: 11387098
    Abstract: A fluid dispenser, comprising a dispenser faceplate having at least one ejection port and a dispenser guard. The dispenser guard has at least one opening configured to allow fluid exiting from the ejection port to flow through and at least one drainage structure. The dispenser guard is spaced from the ejection port with a gap small enough to attract the fluid accumulated around the ejection port to flow into the drainage structure.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: July 12, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Steven C. Shackleton
  • Patent number: 11302561
    Abstract: Transfer elements include an adhesion element having a higher Young's modulus at a lower temperature and a lower Young's modulus at a higher temperature. Heating elements are operable to change an operating temperature of each adhesion element in response to an input. A controller is coupled to provide the inputs to the heating elements to cause a change in temperature at least between the higher and lower temperature. The change in temperature causes the transfer elements to selectably hold objects to and release the objects in response to changes between the higher and lower Young's moduli of transfer elements.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: April 12, 2022
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Yunda Wang, Jengping Lu, Qian Wang, Norine E. Chang
  • Patent number: 11230104
    Abstract: A liquid discharging head includes: a channel unit having a liquid channel which includes: a nozzle arranged at an end part, of the channel unit, on one side in a first direction; and a pressure chamber arranged at an end part, of the channel unit, on the other side in the first direction and communicating with the nozzle; and a piezoelectric element including: a vibration plate arranged on a surface, of the channel unit, on the other side in the first direction and covering the pressure chamber; and a piezoelectric layer arranged on a surface, of the vibration plate, on the other side in the first direction. An area, of the pressure chamber, which is projected in the first direction is not more than 50000 ?m2, and a diameter of the nozzle is increased from the one side toward the other side in the first direction.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: January 25, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Toru Kakiuchi
  • Patent number: 11225696
    Abstract: A delivery device that is usable in a laser peening operation emits a columnar flow of a fluid that contains therein a beam of electromagnetic energy. The beam is retained within the interior of the flow of fluid since the total internal reflectivity of the flow is sufficient to do so. The flow of fluid that serves as a conduit for the beam also itself impinges on a workpiece and thus contains and washes away the plasma that forms from a laser peening operation, and this resists the plasma from reaching and possibly damaging the delivery device. The carrying of the beam in the columnar flow of fluid avoids the need to maintain a fixed distance between the delivery device and the workpiece, which simplifies the movement by a robotic manipulator of the delivery device along a non-planar surface of a workpiece during a laser peening operation.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: January 18, 2022
    Assignee: Westinghouse Electric Company LLC
    Inventors: Lyman J. Petrosy, Phillip J. Hawkins
  • Patent number: 11225070
    Abstract: In one example in accordance with the present disclosure, a fluidic die is described. The fluidic die includes a surface on which a number of nozzles are formed. An electrical interface on the fluidic die establishes an electrical connection between the fluidic die and a fluidic die controller. The electrical interface includes 1) a bond pad disposed within a bond pad region of the surface and 2) an electrical lead coupled to the bend pad to establish an electrical connection between the fluidic die and the fluidic die controller. The fluidic die also includes a beveled edge along an edge of the surface underneath the electrical lead.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: January 18, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Stan E. Leigh, Kellie Susanne Jensen, Terry McMahon, Donald W. Schulte
  • Patent number: 11192361
    Abstract: A liquid-discharging-head includes a nozzle having a first-nozzle-portion having a first-sectional-area and a second-nozzle-portion having a second-sectional-area larger than the first-sectional-area, a liquid chamber which communicates with the nozzle, and a piezoelectric-element which changes a pressure inside the liquid chamber, in which the piezoelectric-element is driven from the control section, and the liquid-discharging-head executes a first control in which an apex of a liquid surface is drawn into the second-nozzle-portion in a state in which an inner wall surface of the first-nozzle-portion is covered by a liquid film by decreasing the pressure inside the liquid chamber, and a second control in which a shape of the apex of the liquid surface is inverted to a protruding shape towed the opening and the droplet is discharged from the nozzle by increasing the pressure inside the liquid chamber in a state in which the inner wall surface is covered by the liquid film.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: December 7, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takahiro Katakura, Hirofumi Sakai, Keigo Sugai, Shinichi Nakamura
  • Patent number: 11192369
    Abstract: A liquid discharging head, having a plurality of individual flow paths, a common flow path, a first member, and a second member, is provided. Each of the individual flow paths includes a nozzle, a pressure chamber, and a connecting flow path arranged between the nozzle and the pressure chamber. The connecting flow path connects the nozzle with the pressure chamber. In the first member, a plurality of first holes each constituting the connecting flow path and a second hole constituting the common flow path are formed. The second member is arranged at a side of the connecting flow path opposite to the pressure chamber in an aligning direction, in which the nozzle, the connecting flow path, and the pressure chamber align with one another. The second member has a third hole that constitutes the common flow path but does not constitute the connecting flow path.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: December 7, 2021
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Taiki Tanaka
  • Patent number: 11167297
    Abstract: The disclosure relates to a print head for applying a coating agent to a component, in particular for applying a paint to a motor vehicle body component, having a nozzle plate, a nozzle in the nozzle plate for dispensing the coating agent, and a valve element movable relative to the nozzle plate for controlling the release of coating agent through the nozzle, the movable valve element closing the nozzle in a closed position, whereas the movable valve element releases the nozzle in an opened position, and having a seal for sealing the nozzle with respect to the movable valve element in the closed position of the valve element. The disclosure provides that the seal is not designed as an elastomer insert on the valve element.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: November 9, 2021
    Assignee: Dürr Systems AG
    Inventors: Hans-Georg Fritz, Benjamin Wöhr, Marcus Kleiner, Moritz Bubek, Timo Beyl, Frank Herre, Steffen Sotzny
  • Patent number: 11155084
    Abstract: An element substrate is bonded to a support substrate with high positional accuracy. A manufacturing method of the liquid ejecting head includes curing a first adhesive, which is in contact with an element substrate and a support substrate, at a first temperature to perform first temporary fixing, heating a second adhesive, which is in contact with the element substrate and the support substrate, to a second temperature higher than the first temperature so as to cure the second adhesive and perform second temporary fixing and heating a third adhesive, which is in contact with the element substrate and the support substrate, to a third temperature higher than the second temperature so as to cure the third adhesive and bond the element substrate to the support substrate. An elastic modulus of the second adhesive is larger than an elastic modulus of the first adhesive at the second temperature.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: October 26, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Kudo, Hisashi Fukai, Hiroyuki Shimoyama
  • Patent number: 11155092
    Abstract: A liquid jetting apparatus jetting a liquid onto a recording medium conveyed in a first direction includes head units arranged in a second direction orthogonal to the first direction. One head unit includes nozzle chips; one nozzle chip has a nozzle arrangement area wherein nozzles are aligned in a third direction crossing the first and second directions. The nozzle chip is arranged to be shifted relative to another nozzle chip in a direction crossing the first and second directions and different from the third direction. The head unit has a first overlapping portion wherein nozzle arrangement areas of first and second nozzle chips included in the nozzle chips partially overlap with each other in the first direction. The liquid jetting apparatus has a second overlapping portion wherein nozzle arrangement areas of third and fourth nozzle chips included in the head units partially overlap with each other in the first direction.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: October 26, 2021
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Taisuke Mizuno, Hideki Hayashi, Keita Sugiura
  • Patent number: 11135846
    Abstract: Printheads for a jetting apparatus. In one embodiment, a printhead comprises a plurality of nozzles configured to eject a print fluid. Each nozzle is comprised of a first converging section having a cross-sectional area that decreases in a flow direction of the print fluid through the nozzle, a neck adjoining the first converging section and having a cross-sectional area that is uniform in the flow direction of the print fluid through the nozzle, and a second converging section adjoining the neck and having a cross-sectional area that decreases in the flow direction of the print fluid through the nozzle.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: October 5, 2021
    Assignee: Ricoh Company, Ltd.
    Inventor: Nasser Budraa
  • Patent number: 11130337
    Abstract: A liquid ejecting head includes a first-nozzle-row set in which a pair of first-nozzle-rows is disposed in a second direction intersecting a first direction so that the first-nozzle-rows are symmetrical about a reference line extending in the first direction and a second-nozzle-row set in which a pair of second-nozzle-rows is disposed in the second direction so that the second-nozzle-rows are symmetrical about the reference line. In the second direction, the distance between the second-nozzle-rows is longer than the distance between the first-nozzle-rows. First nozzles constituting the first-nozzle-row set communicate with a first liquid supply source via a first supply flow path. Second nozzles constituting the second-nozzle-row set communicate with a second liquid supply source via a second supply flow path. Compliance capacity of the second supply flow path is larger than compliance capacity of the first supply flow path.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: September 28, 2021
    Assignee: Seiko Epson Corporation
    Inventor: Manabu Munakata
  • Patent number: 11097537
    Abstract: A fluid ejection device includes a molded body having a first molded surface and a second molded surface opposite the first molded surface, and a fluid ejection die molded into the molded body, with the fluid ejection die having a first surface substantially coplanar with the first molded surface of the molded body and a second surface substantially coplanar with the second molded surface of the molded body, with the first surface of the fluid ejection die having a plurality of fluid ejection orifices formed therein and the second surface of the fluid ejection die having at least one fluid feed slot formed therein.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: August 24, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Chien-Hua Chen, Michael W Cumbie, Anthony M Fuller
  • Patent number: 11059291
    Abstract: In one example in accordance with the present disclosure, a fluidic ejection die is described. The die includes an array of nozzles. Each nozzle includes an ejection chamber and an opening. A fluid actuator is disposed within the ejection chamber. The fluidic ejection die also includes an army of passages, formed in a substrate, to deliver fluid to and from the ejection chamber. The fluidic ejection die also includes an army of enclosed cross-channels. Each enclosed cross-channel of the army of enclosed cross-channels is fluidly connected to a respective plurality of passages of the array of passages.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: July 13, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Si-lam Choy, Michael W Cumbie, Chien-Hua Chen, Jeffrey R Pollard
  • Patent number: 11034177
    Abstract: The present invention relates to an ink-jet printing method that is capable of obtaining good printed characters or images which are free of thermal deformation of a low-liquid absorbing printing medium as well as occurrence of mottling or color bleeding. The present invention provides an ink-jet printing method including the step of printing characters or images on a low-liquid absorbing printing medium using an ink-jet printing apparatus equipped with an ink-jet print head that is capable of ejecting water-based inks onto the low-liquid absorbing printing medium, in which the water-based inks each contain a colorant (A), an organic solvent (C) and water; the ink-jet printing apparatus is loaded with the two or more kinds of water-based inks which are different in static surface tension from each other; the printing medium is heated to a temperature of from 30 to 75° C.; and the water-based inks are ejected in the sequential order from the water-based ink having a higher static surface tension.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: June 15, 2021
    Assignee: KAO CORPORATION
    Inventors: Azusa Kuroda, Yuta Matsumoto
  • Patent number: 10982104
    Abstract: To provide an inkjet printing apparatus that improves the smoothness of the ink layer surface and improves the image quality. Provided is an inkjet printing apparatus that prints with a UV curable ink, the inkjet printing apparatus including: an ejection unit configured to eject the UV curable ink onto the surface of a print medium; and a control unit configured to control the ejection of the UV curable ink from the ejection unit, the UV curable ink containing a thixotropy-imparting agent, and the control unit setting the viscosity of the UV curable ink to 1 mPa·s to 20 mPa·s at the time of ejection and to at least 80 mPa·s within five seconds of landing on the print medium.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: April 20, 2021
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventors: Kazuki Bando, Kazuki Ohara, Osamu Saito
  • 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: 10953656
    Abstract: A liquid discharge head includes a nozzle plate including a plurality of nozzles to discharge liquid, a plurality of individual chambers communicating with the plurality of nozzles, respectively, a supply-side channel communicating with the plurality of individual chambers, and a collection-side channel communicating with the plurality of individual chambers. The collection-side channel includes a first channel arranged in a first direction along a surface of the nozzle plate, a second channel communicating with the first channel, the second channel arranged in a second direction across the surface of the nozzle plate, and a branch channel branched from the first channel and connected to the second channel, the branch channel arranged in a third direction across the surface of the nozzle plate.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: March 23, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasuhiro Watanabe, Norimasa Sohgawa
  • Patent number: 10946656
    Abstract: A liquid ejection head includes a flow path substrate, a first plate having a nozzle, and a second plate. A flow path substrate includes a first communication path which passes through a flow path substrate in a thickness direction and has an opening on each of a first plate side and a second plate side, and a second communication path communicating with an opening on a first plate side of a first communication path at a first plate side and extending on the second plate side. A pressure chamber communicating with a first communication path and a first flow path through which a liquid flows into a pressure chamber are formed by a part of a second plate and a part of a flow path substrate.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: March 16, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Toshiro Murayama, Yuma Fukuzawa, Shunya Fukuda, Kazuaki Uchida, Shunsuke Watanabe, Noriaki Okazawa
  • Patent number: 10906306
    Abstract: The individual flow path includes a nozzle communicating with an outside, a first flow path, in the middle of which the nozzle is disposed and which extends in a first direction that is an in-plane direction of a nozzle surface of the nozzle plate in which the nozzle opens, a second flow path coupled to the first flow path and extending in a second direction other than the first direction, a third flow path coupled to the second flow path and extending in the third direction other than the second direction, and a pressure chamber which is disposed in the third flow path and in which a pressure change is induced by the energy generating element. A cross-sectional area of the first flow path is smaller than a cross-sectional area of the second flow path.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: February 2, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Shotaro Tamai, Kazuaki Uchida, Akinori Taniuchi
  • Patent number: 10875305
    Abstract: A liquid ejection head includes a substrate in which an ejection port for ejecting liquid is formed, a pressure chamber to house the liquid to be ejected from the ejection port and apply pressure to the liquid in the ejection, and a flow passage connected to the pressure chamber and configured to cause the liquid in the pressure chamber to circulate along the substrate. The ejection port has a non-circular shape, and the substrate is provided with a groove portion extending in a direction of the circulation and connected to the ejection port. According to the above-described configuration, the liquid ejection head can sufficiently extend a liquid circulation effect to a position near a meniscus while suppressing mixing of bubbles.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: December 29, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toru Nakakubo
  • Patent number: 10875321
    Abstract: In some examples, a fluid ejection device includes a support body, a multi-die assembly, and a fluid channel that extends through the support body from a first side to a second side adjacent the multi-die assembly. The multi-die assembly includes a plurality of fluid ejection dies to receive fluid from the fluid channel, where a first fluid ejection die of the plurality of fluid ejection dies is to dispense fluid of a first drop size, and a second fluid ejection die of the plurality of fluid ejection dies is to dispense fluid of a second drop size different from the first drop size.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: December 29, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Garrett E Clark
  • Patent number: 10864733
    Abstract: A MEMS chip assembly including: a support structure having a chip mounting surface; a MEMS chip mounted on the chip mounting surface, each MEMS chip having an active surface including one or more MEMS devices and a plurality of bond pads disposed alongside a connection edge of the MEMS chip; electrical connectors connected to the bond pads; and an encapsulant material covering the electrical connectors. The MEMS chip has encapsulant-retaining trenches defined in the active surface extending alongside the connection edge, each encapsulant-retaining trench being disposed between the bond pads and the MEMS devices.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: December 15, 2020
    Inventors: Elmer Dimaculangan Perez, Angus North, Graeme Lowe, See-Huat Tan, Christopher Barton
  • Patent number: 10864736
    Abstract: A liquid discharge device includes a channel member, a nozzle plate, a flexible film, a support, and a lid. The channel member has a storage chamber that stores liquid. The nozzle plate has a nozzle through which the liquid stored in the storage chamber is discharged. The flexible film forms part of walling of the storage chamber. The support has an opening that surrounds a space where the flexible film is exposed at a side of the flexible film opposite the storage chamber. The lid is configured to cover the flexible film across the space, and is bonded, by an adhesive, to a surface of the support. The support has a groove provided in the surface bonded to the lid. The adhesive is also disposed in the groove.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: December 15, 2020
    Inventors: Shunya Fukuda, Hiroki Miyajima
  • Patent number: 10850517
    Abstract: An inkjet printhead includes: an elongate support having a printhead mounting surface; a plurality of butting printhead chips mounted on the printhead mounting surface, each printhead chip having an ink ejection surface including one or more nozzle rows; and a grout material disposed between butting edges of each butting pair of printhead chips. Each printhead chip has a grouting trench defined in the ink ejection surface, the grouting trench extending alongside at least one butting edge and the grouting trench being disposed between an endmost nozzle of each nozzle row and the butting edge.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: December 1, 2020
    Inventors: Elmer Dimaculangan Perez, Angus North, Graeme Lowe, See-Huat Tan, Christopher Barton
  • Patent number: 10814626
    Abstract: A liquid ejecting head including a vibration plate that forms a wall surface of a pressure chamber filled with a liquid; and a piezoelectric element that vibrates the vibration plate to eject the liquid in the pressure chamber from nozzles, in which the vibration plate includes a first layer formed of silicon oxide, a second layer formed of zirconium oxide on a side opposite to the pressure chamber when viewed from the first layer, a ratio of a film thickness of the second layer to a film thickness of the first layer is 0.16 or more, and the film thickness of the second layer is 300 nm or more.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: October 27, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Masanori Mikoshiba, Katsutomo Tsukahara
  • Patent number: 10744765
    Abstract: An object of the present invention is to provide a liquid droplet ejection head and a liquid droplet ejection apparatus in which viscosity resistance of a liquid to be ejected is reduced on an ejection side of a nozzle to prevent pointed-end ejection and to improve accuracy of an ejection angle. This object is achieved by the following. That is, a channel 28 having a volume to be changed by a pressure generation element and a nozzle 23 communicating with the channel 28 are included. The inside of the nozzle 23 has a conical portion 23a with a diameter becoming gradually smaller toward an outside, and a cylindrical portion 23b continuous with the conical portion 23a and communicating with the outside. A connecting part of the conical portion 23a to the cylindrical portion 23b has the same opening cross-sectional shape as a connecting part of the cylindrical portion 23b to the conical portion 23a.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: August 18, 2020
    Assignee: Konica Minolta, Inc.
    Inventors: Akito Shimomura, Kusunoki Higashino
  • Patent number: 10723130
    Abstract: A liquid discharge head includes a head substrate and a surface treatment film on a surface of the head substrate. The surface treatment film is an oxide film containing Si. The oxide film contains a transition metal to form a passive film. A content of Si in a vicinity of an interface of the surface treatment film with the head substrate is higher than a content of Si in an inside of the surface treatment film and is 20 at % or more.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: July 28, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Takahiko Kuroda, Satoshi Mizukami
  • Patent number: 10717278
    Abstract: An inkjet nozzle includes an aperture with a noncircular opening having a first segment substantially defined by a first polynomial equation and a second segment substantially defined by a second equation.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: July 21, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: James A. Feinn, David P. Markel, Albert Nagao, Paul A. Richards, Thomas R. Strand, Erik D. Torniainen, Lawrence H. White
  • Patent number: 10668719
    Abstract: A recording element substrate includes a substrate, a plurality of energy generating elements arranged on the substrate to form an element row, a plurality of supply ports arranged along the element row to form a supply port row, and a plurality of supply paths extending from the plurality of supply ports along the thickness direction of the substrate, wherein a plurality of beam portions disposed between adjacent supply ports in the direction of the supply port row has a plurality of conductor layers in which a conductor layer including a power supply conductor connected to the energy generating elements and a conductor layer including a ground conductor connected to the energy generating elements, are stacked along the thickness direction of the substrate, and wherein at least one of the plurality of conductor layers is occupied by one power supply conductor or one ground conductor.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: June 2, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masataka Sakurai, Nobuyuki Hirayama, Ryo Kasai, Kengo Umeda, Hidenori Yamato, Masanobu Ohmura, Tatsuhito Goden
  • Patent number: 10661201
    Abstract: An example device includes a frame having at least one outer opening and at least one inner opening recessed from the outer opening, at least one filter screen mounted on a perimeter of the at least one inner opening to form an inner chamber, at least one cover layer mounted on a perimeter of the at least one outer chamber to form an outer chamber, and a series of bubblebreaking features positioned within the inner chamber. The bubble-breaking features are positioned along a depth and a height of the inner chamber. The filter screen separates the inner chamber from the outer chamber, and the filter screen prevents froth from crossing and allows coalesced fluid to cross into the outer chamber.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: May 26, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Anthony Studer, Robert Wickwire, John Farrar Wilson
  • Patent number: 10651383
    Abstract: A flow deflector, an inkjet printing method, an inkjet printing device, and a method for manufacturing a display substrate are provided. The flow deflector includes a plate-shaped body, and the plate-shaped body includes a first surface and a second surface opposite to each other, a plurality of through holes is arranged in the plate-shaped body, each of the plurality of through holes penetrates from the first surface to the second surface, and comprises a first opening formed on the first surface and a second opening formed on the second surface, and an opening area of the first opening is larger than an opening area of the second opening.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: May 12, 2020
    Assignees: BEJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Di Zhang
  • Patent number: 10632750
    Abstract: A liquid jetting apparatus includes: individual channels; and a manifold commonly provided for the individual channels. Each of the individual channels has: a nozzle; a pressure chamber arranged away from the nozzle in a predetermined direction to extend along a plane orthogonal to the predetermined direction and connected to the manifold, a connecting channel connected to the pressure chamber to form at least a part of a channel communicating the pressure chamber and the nozzle, and a circulation channel connected to the connecting channel to form a part of a channel communicating the connecting channel and the pressure chamber. The connecting channel has a throttle, and the throttle has a smaller diameter along the plane orthogonal to the predetermined direction than a diameter, of a part of the connecting channel except the throttle, along the plane orthogonal to the predetermined direction.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: April 28, 2020
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Keita Sugiura
  • Patent number: 10611144
    Abstract: A fluid ejection apparatus includes a fluid ejector comprising a pumping chamber, an ejection nozzle coupled to the pumping chamber, and an actuator configured to cause fluid to be ejected from the pumping chamber through the ejection nozzle. The fluid ejection apparatus includes a first compliant assembly formed in a surface of an inlet feed channel, the inlet feed channel fluidically connected to a fluid inlet of the pumping chamber; and a second compliant assembly formed in a surface of an outlet feed channel, the outlet feed channel fluidically connected to a fluid outlet of the pumping chamber. A compliance of the first compliant assembly is different from a compliance of the second compliant assembly.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: April 7, 2020
    Assignee: FUJIFILM Dimatix, Inc.
    Inventors: Matt Giere, Christoph Menzel, Daniel W. Barnett
  • Patent number: 10611160
    Abstract: An inkjet recording apparatus includes: a first tank; a second tank; a recording portion including a first damper chamber and a second damper chamber; a first switch; a pump; a second switch; and a controller. The first switch is configured to be switched between a first state and a second state. The second switch is configured to be switched between a third state and a fourth state. After attachment of first and second cartridges to the inkjet recording apparatus, the controller performs an initial ink introduction including one of: a first drive process to drive the pump in a state where the first switch is in the first state and the second switch is in the fourth state; and a second drive process to drive the pump in a state where the first switch is in the second state and the second switch is in the third state.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: April 7, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Toshiro Ueda
  • Patent number: 10611153
    Abstract: A printing head and an inkjet printing device are provided. The printing head includes a base, and N printing components on the base, where N?2. Each of the printing components includes a diversion groove group and a plurality of nozzles. The diversion groove group includes a plurality of diversion grooves, the plurality of diversion grooves and the plurality of nozzles are in one-to-one correspondence, and a first end of each of the diversion grooves is connected to a corresponding nozzle. The center points of all the nozzles are on the same reference line, the opening faces of all the nozzles are in the bottom surface of the base, any two of the diversion groove groups of the N printing components are in different orientations of the reference line, and any two adjacent nozzles respectively belong to two different printing components, which reduces the turbulence between the nozzles.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: April 7, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Qing Dai
  • Patent number: 10589534
    Abstract: An inkjet recording apparatus includes a recording head, an ink tank, a supply flow path, a supply pump located in the supply flow path, a collection flow path, a relief flow path connecting a first position in the supply flow path to a second position in the supply flow path, wherein the first position is located at a downstream side of the supply pump in the supply flow path and the second position located at an upstream side of the supply pump in the supply flow path, and a differential pressure regulating valve located in the relief flow path and configured to, in a case where the pressure of the pumped ink in the supply flow path is larger than a predetermined value, open the relief flow path so as to allow ink in the supply flow path to flow from the first position to the second position.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: March 17, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kyoshiro Okude, Ryoma Arai, Toshiaki Tokisawa, Takashi Abe
  • Patent number: 10562304
    Abstract: An inkjet nozzle includes an aperture with a noncircular opening substantially defined by a polynomial equation. A droplet generator is also described which includes a firing chamber fluidically coupled to a fluid reservoir a heating resistor and a nozzle. The nozzle includes an aperture forming a passage from the firing chamber to the exterior of the droplet generator through a top hat layer. The nozzle is defined by a closed polynomial and has a mathematically smooth and mathematically continuous shape around aperture's perimeter wall, with two protrusions extending into the center of the aperture.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: February 18, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: James A. Feinn, Albert Nagao, Thomas R. Strand, David R. Thomas, Erik D. Torniainen, Lawrence H. White
  • Patent number: 10533800
    Abstract: The present invention provides, inter alia, for a liquid feeding device for the generation of droplets, in particular for the use in a process line for the production of freeze-dried particles, with a droplet ejection section for ejecting liquid droplets in an ejection direction, the droplet ejection section comprising at least one inlet port for receiving a liquid to be ejected, a liquid chamber for retaining the liquid, and a nozzle for ejecting the liquid from the liquid chamber to form droplets, wherein the liquid chamber is restricted by a membrane on one side thereof, the membrane being vibratable by an excitation unit, wherein the longitudinal axis of the liquid chamber is tilted relative to the longitudinal axis of the nozzle, and/or the liquid feeding device further comprises a deflection section for separating the droplets from each other by means of at least one gas jet, wherein the deflection section gas jet intersects perpendicular with an ejection path of the liquid ejected from the liquid chamb
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: January 14, 2020
    Assignee: Sanofi Pasteur SA
    Inventors: Thomas Gebhard, Roland Kaiser, Bernhard Luy, Matthias Plitzko, Manfred Struschka, Christian Zerillo
  • Patent number: 10525712
    Abstract: A printer includes: a platen having an ink-collection slot extending across its width; a wick bar received in the ink-collection slot, wherein an upstream gap and a downstream gap are defined at either side of the wick bar relative to a media feed direction; a printhead positioned over the wick bar; and a vacuum chamber in fluid communication with the ink-collection slot. The wick bar has a wick surface sloped upwards from the upstream gap towards the downstream gap.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: January 7, 2020
    Assignee: MEMJET TECHNOLOGY LIMITED
    Inventors: Dan Baterna, Rommel Balala
  • Patent number: 10486421
    Abstract: A liquid discharging head includes a discharge port that discharges a liquid, a pressure chamber that communicates with the discharge port, and an energy generating element that is disposed in the pressure chamber. In the liquid discharging head, the discharge port is provided with a plurality of projections that project towards a central portion of the discharge port from an inner peripheral edge of the discharge port, and an interval between the projections at a location where the projections are closest to each other is 5 ?m or less.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: November 26, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takatsugu Moriya, Shuzo Iwanaga, Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Hammura, Tatsuya Yamada, Tomohiro Sato, Ayako Iwasaki, Tomoki Ishiwata, Koichi Ishida
  • Patent number: 10479080
    Abstract: In an embodiment, a fluid ejection device includes a substrate with a fluid slot formed therein, a chamber layer formed on the substrate defining fluid chambers on both sides of the fluid slot, a thin-film layer between the substrate and chamber layer that defines an ink feedhole (IFH) between the fluid slot and the chamber layer, and a chamber layer extension that forms a bridge across the IFH between two chambers.
    Type: Grant
    Filed: September 2, 2018
    Date of Patent: November 19, 2019
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Rio Rivas, Anthony M. Fuller, Ed Friesen