Drop-on-demand Patents (Class 347/54)
  • Patent number: 10759169
    Abstract: The present disclosure provides supports for microfluidic die that allow for nozzles of the microfluidic die to be on a different plane or face a different direction from electrical contacts on the same support. This includes a rigid support having electrical contacts on a different side of the rigid support with respect to a direction of ejection of the nozzles, and a semi-flexible support or semi-rigid support that allow the electrical contacts to be moved with respect to a direction of ejection of the nozzles. The semi-flexible and semi-rigid supports allow the die to be up to and beyond a 90 degree angle with respect to a plane of the electrical contacts. The different supports allow for a variety of positions of the microfluidic die with respect to a position of the electrical contacts.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: September 1, 2020
    Assignees: STMICROELECTRONICS S.r.l., STMICROELECTRONICS, INC., STMICROELECTRONICS INTERNATIONAL N.V.
    Inventors: Simon Dodd, David S. Hunt, Joseph Edward Scheffelin, Dana Gruenbacher, Stefan H. Hollinger, Uwe Schober, Peter Janouch
  • Patent number: 10759168
    Abstract: The present disclosure provides supports for microfluidic die that allow for nozzles of the microfluidic die to be on a different plane or face a different direction from electrical contacts on the same support. This includes a rigid support having electrical contacts on a different side of the rigid support with respect to a direction of ejection of the nozzles, and a semi-flexible support or semi-rigid support that allow the electrical contacts to be moved with respect to a direction of ejection of the nozzles. The semi-flexible and semi-rigid supports allow the die to be up to and beyond a 90 degree angle with respect to a plane of the electrical contacts. The different supports allow for a variety of positions of the microfluidic die with respect to a position of the electrical contacts.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: September 1, 2020
    Assignees: STMICROELECTRONICS S.r.l., STMICROELECTRONICS, INC., STMICROELECTRONICS INTERNATIONAL N.V.
    Inventors: Simon Dodd, David S. Hunt, Joseph Edward Scheffelin, Dana Gruenbacher, Stefan H. Hollinger, Uwe Schober, Peter Janouch
  • Patent number: 10730292
    Abstract: A liquid discharge head includes a plurality of nozzles, a plurality of individual liquid chambers, a common liquid chamber, a deformable damper, and a damper chamber. The plurality of nozzles is arrayed in a nozzle array direction, to discharge liquid. The plurality of individual liquid chambers is communicated with the plurality of nozzles. The common liquid chamber supplies liquid to the plurality of individual liquid chambers. The deformable damper constitutes part of a wall face of the common liquid chamber. The damper chamber is disposed along the nozzle array direction with the damper interposed between the damper chamber and the common liquid chamber. The damper chamber extends to an outer area in the nozzle array direction than an individual liquid chamber of the plurality of individual liquid chambers at each end in the nozzle array direction.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: August 4, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tomohiko Kohda, Satoru Tobita, Ryo Kasahara, Ryohta Matsufuji, Norimasa Sohgawa
  • Patent number: 10730299
    Abstract: There is provided a method for manufacturing a liquid discharge head including a liquid discharge head substrate and a flow path forming member, the liquid discharge head substrate having a base, a pressure generation portion provided at a front surface of the base to generate pressure for discharging a liquid, and a supply port for supplying the liquid to the pressure generation portion, and the flow path forming member forming a flow path for feeding the liquid supplied from the supply port to the pressure generation portion. The method includes removing a sacrificial layer by etching the base from a back surface of the base, in a state in which an end covering portion of a cover layer for covering the sacrificial layer is covered with the resin layer. The method suppresses formation of a crack in the end covering portion that covers the end portion of the sacrificial layer.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: August 4, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yuji Tamaru, Yuichiro Akama, Naoko Tsujiuchi, Sayaka Seki, Yasuaki Kitayama, Yusuke Hashimoto, Takanobu Manabe
  • Patent number: 10717273
    Abstract: A liquid ejection head includes an ejection orifice through which a liquid is ejected, a first liquid flow path which is in communication with the ejection orifice and through which the liquid flows, a second liquid flow path which is in communication with the ejection orifice on the opposite side of the first liquid flow path with respect to the ejection orifice 12 and through which the liquid flows, a first electrode positioned in the first liquid flow path 13, and a second electrode which is positioned in the second liquid flow path and generates an electro-osmotic flow in the liquid together with the first electrode.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: July 21, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiyuki Nakagawa, Kazuhiro Yamada, Noriyasu Nagai, Takuro Yamazaki, Toru Nakakubo, Akira Yamamoto, Masafumi Morisue, Ryo Kasai
  • Patent number: 10632749
    Abstract: A fluid ejection device includes a fluid slot, a plurality of fluid ejection chambers communicated with the fluid slot, a plurality of drop ejecting elements one of each within one of the fluid ejection chambers, a plurality of fluid circulation channels each communicated with the fluid slot and one or more of the fluid ejection chambers, and a plurality of fluid circulating elements each communicated with one or more of the fluid circulation channels. The fluid circulating elements are to provide intermittent circulation of fluid from the fluid slot through the one or more of the fluid circulation channels and the one or more of the fluid ejection chambers.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: April 28, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alexander Govyadinov, Chris Bakker
  • Patent number: 10611149
    Abstract: There is provided a liquid jetting apparatus, including: a first pressure chamber and a second pressure chamber arranged in a first direction; a first insulating film covering the first and second pressure chambers; a first piezoelectric element arranged to face the first pressure chamber with the first insulating film being intervened therebetween; a second piezoelectric element arranged to face the second pressure chamber with the first insulating film being intervened therebetween; a trace arranged between the first and the second piezoelectric elements adjacent to each other in the first direction; and a second insulating film covering the trace. An end, in the first direction, of a part of the second insulating film covering the trace between the first piezoelectric element and the second piezoelectric element is positioned inside an end of a partition wall partitioning the first pressure chamber and the second pressure chamber.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: April 7, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Taiki Tanaka, Keita Hirai
  • Patent number: 10603915
    Abstract: A flow passage structure includes a flow passage member that constitutes a portion of a wall surface of a liquid storage chamber; a flexible film that is laminated on the flow passage member and constitutes a portion of the wall surface of the liquid storage chamber; a sealing body that is laminated on a side opposite to the flow passage member with the flexible film interposed therebetween and forms a space in which the flexible film is exposed; communication passages that are formed in a region around the liquid storage chamber in the sealing body and causes the space to communicate with an atmosphere in a case where the sealing body is seen in a plan view from a direction in which the flow passage member and the flexible film are laminated; and a support portion that supports the flexible film in the communication passage.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: March 31, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Hiroki Miyajima, Kenichiro Matsuo
  • Patent number: 10589273
    Abstract: Embodiments of present application are directed to microfluidic devices and particularly digital micro-plastic fluidic devices that are specifically designed to prevent sample contamination during sample processing, methods of manufacturing the same, and methods to improve sample analysis process by preventing sample contamination.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: March 17, 2020
    Assignee: ILLUMINA, INC.
    Inventors: Allen E Eckhardt, Rigo Pantoja, Sean M Ramirez, Petr Capek, Edwin Li
  • Patent number: 10576741
    Abstract: An ejection energy generating element is provided in a first pressure chamber so that a liquid in the first pressure chamber is ejected from an ejection port. A pressurization energy generating element is provided in a second pressure chamber so that the liquid in the first pressure chamber is pressurized. An opening area of a hole open to the second pressure chamber is smaller than an opening area of the ejection port.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: March 3, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akiko Hammura, Yoshiyuki Nakagawa
  • Patent number: 10569544
    Abstract: According to examples, a multi-layered nozzle fluid ejection device may include a first nozzle layer including a first nozzle layer thickness and a first nozzle layer orifice, and a second nozzle layer including a second nozzle layer thickness and a second nozzle layer orifice. The first nozzle layer orifice may include a first nozzle layer orifice dimension that is different than a second nozzle layer orifice dimension of the second nozzle layer orifice.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: February 25, 2020
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventor: Sean P McClelland
  • Patent number: 10562302
    Abstract: A liquid ejecting head includes a flow path substrate in which a nozzle through which liquid is ejected, a pressure chamber that communicates with the nozzle and a liquid supply chamber that communicates with the pressure chamber are formed, a vibration plate that is installed on the flow path substrate and overlaps with the pressure chamber and the liquid supply chamber, and a piezoelectric element that is formed on the vibration plate on an opposite side from the pressure chamber, in which a portion of the vibration plate overlapping with the pressure chamber is thinner in a thickness than a portion of the vibration plate overlapping with the liquid supply chamber.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: February 18, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Naoto Yokoyama, Masao Nakayama, Eiju Hirai
  • Patent number: 10562301
    Abstract: A liquid ejection head includes a laminated body including a first plate having a plurality of ejection nozzles for ejecting a liquid and made from a resin material and a second plate having a plurality of through-holes communicating with the corresponding ejection nozzles and made from a metal material. The laminated body has a plurality of projection parts formed along the array direction Y of the ejection nozzles and having a curved dome shape projecting in the direction from the second plate to the first plate. The second plate has a plurality of through-slits formed adjacent to the projection parts.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: February 18, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hiroyuki Shimoyama
  • Patent number: 10518538
    Abstract: An electric field generating unit that forms an electric field between a nozzle forming surface of a recording head and a medium support section that faces the nozzle forming surface by applying a voltage to a conductive member includes the conductive member, forms an electric field, and, during borderless recording in which ink is ejected on inside and outside of an edge of a paper sheet, applies an increased voltage in an ink discarded region outside the edge compared to a voltage applied in a recording region other than the ink discarded region.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: December 31, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Manabu Kondo, Makoto Sato
  • Patent number: 10518548
    Abstract: A liquid ejection head has a plurality of ejection modules having a recording element substrate equipped with a plurality of ejection orifices for ejecting a liquid, a plurality of first flow path members that supports at least one of the ejection modules and a second flow path member provided in common with the first flow path members and supporting the first flow path members. The first flow path members and the second flow path member are equipped with a flow path for supplying a plurality of recording element substrates with a liquid. The first flow path members are joined with the second flow path member via an adhesive layer without being brought into direct contact with the second flow path member.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: December 31, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuhiro Yamada, Shuzo Iwanaga, Seiichiro Karita, Shingo Okushima, Zentaro Tamenaga, Noriyasu Nagai, Tatsurou Mori, Akio Saito, Akira Yamamoto, Asuka Horie, Masao Furukawa, Takatsuna Aoki
  • Patent number: 10518529
    Abstract: The liquid discharge device includes a plurality of volume changing portions and at least one blocking portion. The plurality of volume changing portions are in combination with a plurality of pressure chambers which communicate with nozzles for discharging a liquid and which have inlets through which the liquid flows into the plurality of pressure chambers. The at least one blocking portion blocks communication at the inlets. The plurality of volume changing portions are arranged in a plurality of rows spaced from one another. In a direction along the plurality of rows, the plurality of rows of volume changing portions are staggered from one another. The liquid is discharged from the nozzles by using the plurality of volume changing portions in a state in which the inlets are blocked by the at least one blocking portion.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: December 31, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Keigo Sugai
  • Patent number: 10518987
    Abstract: A conveying machine for containers, comprising at least one base module having a predetermined length according to a feed direction of the containers and at least a supporting carriage for the containers slidably mounted on said base module. The base module and carriage together define a linear motor, wherein the stator is the base module and the rotor is the carriage. The machine comprises a supporting plate for the containers, which is rotatably mounted on the carriage and means for moving the plate, which is operatively connected to the plate to rotate it on itself.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: December 31, 2019
    Assignee: MAKRO LABELLING S.R.L.
    Inventor: Simone Marcantoni
  • Patent number: 10510642
    Abstract: The present invention relates to a semiconductor device module which includes: a semiconductor device including a top electrode and a bottom electrode; a substrate on which the bottom electrode of the semiconductor device is bonded; a heat sink on which the substrate is mounted; a lead electrode through which a main current of the semiconductor device flows; an insulating case disposed to enclose the substrate; and a retainer disposed in a cantilevered manner in the insulating case, the retainer supporting the lead electrode, wherein the lead electrode has one end brazed to the top electrode of the semiconductor device, and another end side inserted into a wall of the insulating case, and the retainer is engaged on the one end of the lead electrode to restrict movement of the lead electrode.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: December 17, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Arata Iizuka, Korehide Okamoto, Natsuki Tsuji
  • Patent number: 10471717
    Abstract: A first channel member of a liquid ejection head includes a plurality of plates stacked through an adhesive. A first plate includes a second groove configuring the second common channel, and a plurality of first grooves which are communicated with the second groove from a wall surface of the second groove and individually configure a plurality of third individual channels. A second plate is bonded to a top surface of the first plate and configures an upper surface of the second common channel. The first plate includes an extension part which extends outward from the wall surface of the second groove between an end part position of one end of the second groove and a connection position closest to the end part position among connection positions of the plurality of first grooves with respect to the wall surface of the second groove.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: November 12, 2019
    Assignee: KYOCERA CORPORATION
    Inventor: Naoki Kobayashi
  • Patent number: 10471716
    Abstract: According to an embodiment, a liquid ejecting head chip includes an actuator plate and an in-channel electrode. In the actuator plate, a plurality of channels are arranged at a distance in an X-direction. Each of the channels includes an extension portion and a raise-and-cut portion. The extension portion extends in a Z-direction. The raise-and-cut portion continues from the extension portion toward one side of the Z-direction and has a groove depth which is gradually reduced toward the one side of the Z-direction. The in-channel electrode is formed on an inner surface of each of the channels, with a plating film.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: November 12, 2019
    Assignee: SII PRINTEK INC.
    Inventor: Hitoshi Nakayama
  • Patent number: 10457042
    Abstract: An object of the disclosure is to provide an inkjet head that makes it possible to realize alleviation of ink-discharge malfunction due to fluid crosstalk possibly caused among multiple discharge components, and that also simultaneously makes it possible to maintain a desirable volume of discharged liquid droplets. Furthermore, another object of the disclosure is to provide an inkjet device including the inkjet head.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: October 29, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shuhei Nakatani, Futoshi Ohtsuka, Yousuke Toyofuku
  • Patent number: 10442196
    Abstract: A channel member includes an integrating channel, a plurality of common channels, a plurality of individual channels, and a plurality of ejection ports. The integrating channel extends in a first direction. The plurality of common channels extends in a second direction, is spaced apart from each other in the first direction, and is individually connected to the integrating channel. The plurality of individual channels is connected to the respective plurality of common channels. Each of the plurality of ejection ports is linked with at least one corresponding individual channel. Each of the plurality of common channels includes a first connection region connected to the plurality of individual channels, and a second connection region connected to the integrating channel. Each of the plurality of common channels includes an opening in the second connection region linked with the integrating channel, and a damper in a portion facing the opening.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: October 15, 2019
    Assignee: KYOCERA CORPORATION
    Inventor: Naoki Kobayashi
  • Patent number: 10415086
    Abstract: In one embodiment, a polymerase chain reaction (PCR) system includes a mixture chamber, a denature chamber, an annealing chamber, an extension chamber, and a product chamber, that are fluidically coupled to one another through a plurality of microfluidic channels. An inertial pump is associated with each microfluidic channel, and each inertial pump includes a fluid actuator integrated asymmetrically within its associated microfluidic channel. The fluid actuators are capable of selective activation to circulate fluid between the chambers in a controlled cycle.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: September 17, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Pavel Kornilovich, Erik D. Tornianinen, Alexander Govyadinov, David P. Markel
  • Patent number: 10406806
    Abstract: A pressure chamber of each of channels of an inkjet head has a non-rotating body shape around an axis perpendicular to a support substrate on which the pressure chamber is formed. The direction of the pressure chamber corresponding to a rotation angle from a reference position around the axis passing through the pressure chamber is defined as the direction of the pressure chamber. A plurality of channels arranged in a same row in a direction parallel to the substrate includes channels and having the pressure chamber facing different directions. In a same row, channels (e.g. channel 21a1) driven by a same circuit element (e.g. circuit element) are arranged such that the pressure chambers face a same direction.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: September 10, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventor: Shinya Matsuda
  • Patent number: 10391770
    Abstract: A liquid discharge head includes a flow path substrate including an individual liquid chamber communicating with a nozzle of discharging liquid; and a holding substrate joined to the flow path substrate by an adhesive bond and has an opening communicating with the individual liquid chamber, wherein the opening of the holding substrate has a wall surface crossing relative to a joining surface between the flow path substrate and the holding substrate, wherein an uneven portion is provided on the wall surface of the opening of the holding substrate, and wherein a part of the adhesive bond adheres to the uneven portion on the wall surface.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: August 27, 2019
    Assignee: Ricoh Company, Ltd.
    Inventor: Keisuke Hayashi
  • Patent number: 10384448
    Abstract: A liquid ejecting head unit includes an ejecting surface in which nozzles for ejecting a liquid are formed, and a first and a second circuit substrates for ejecting the liquid from the nozzles, in which a planar shape of the ejecting surface includes a first, a second and a third portions. A center line parallel to a long side of a rectangle of a minimum area surrounding the ejecting surface passes the first portion but not the second and third portions. The second and third portions are arranged adjacently to the first portion interposed therebetween. The first circuit substrate is positioned in the first and second portions. The second circuit substrate is positioned in at least one of the first and third portions.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: August 20, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Katsuhiro Okubo, Shigeki Suzuki, Hiroyuki Hagiwara, Takahiro Kanegae
  • Patent number: 10363740
    Abstract: A liquid ejection head includes a substrate including an energy generating element configured to generate energy used for ejecting a liquid, a flow channel member overlying the substrate and defining a flow channel through which a liquid is supplied, and an ejection opening member overlying the flow channel member and defining an ejection opening through which the liquid supplied through the flow channel is ejected by the energy from the energy generating element. The flow channel member contains a crosslinked cured product of a multifunctional epoxy resin and a polyhydric alcohol having a perfluoroalkyl group in the molecular structure, and the concentration of a component derived from the polyhydric alcohol in the flow channel member is lower on the side adjacent to the substrate than on the side adjacent to the ejection opening member.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: July 30, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroaki Mihara, Shoji Shiba
  • Patent number: 10315433
    Abstract: An embodiment of an inkjet may include a plurality of nozzles to eject ink, a pressure chamber individually communicated with each nozzle and filled with ink, a pressure generator to eject ink by applying pressure to the pressure chamber, an inlet including a narrow portion with a flow path narrower than the pressure chamber and structured to supply ink to the pressure chamber, and a circulation flow path structured to discharge ink in the pressure chamber from near the nozzle. Viscosity resistance of the circulation flow path may be smaller than viscosity resistance of the nozzle, and impedance of the circulation flow path may be equal to or more than 0.5 times of the impedance of the inlet.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: June 11, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takashi Matsuo, Hideyuki Kobayashi, Kusunoki Higashino
  • Patent number: 10259223
    Abstract: A print head has a tile made of a material having a first coefficient of thermal expansion (CTE). The tile carries a chip that forms a number of printing elements and is in thermal contact with the tile. The chip is mainly made of a material having a second CTE different from the first CTE. A stress relief plate is made of a material having a third CTE that is closer to the second CTE than the first CTE and is bonded to the tile with a first adhesive layer having a first thickness d1. The chip is bonded to the stress relief plate with a second adhesive layer having a second thickness d2 smaller than the first thickness d1.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: April 16, 2019
    Assignee: OCÉ HOLDING B.V.
    Inventors: Klaas Verzijl, Norbert H. W. Lamers, Henricus M. G. Simons
  • 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: 10245831
    Abstract: At least one embodiment of a liquid discharge head includes a liquid discharge substrate, a support substrate on which a back surface of the liquid discharge substrate is joined, and a wiring substrate. A second edge of the liquid discharge substrate and at least one third edge that forms a surface of the support substrate and is in contact with the back surface of the liquid discharge substrate, intersect at an intersecting point. A sealing agent for sealing an electric connection portion between the liquid discharge substrate and the wiring substrate extends over a portion of the second edge extending toward at least one second side surface of the liquid discharge substrate from a space on a lower side of the electric connection portion, to reach at least the intersecting point.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: April 2, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shimpei Otaka, Akira Yamamoto
  • 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: 10195849
    Abstract: Channel grooves for a discharge channel and a non-discharge channel are formed in the surface of an actuator plate by cutting. The discharge channel includes an extension portion and a raise-and-cut portion, and the non-discharge channel also includes an extension portion and a raise-and-cut portion. In an embodiment, an electrode clearance groove is formed in advance by cutting with a dicing blade or the like. After the electrode clearance groove is formed, an electrode is formed by plating. Since plating is performed after the electrode clearance groove is formed, a clearance groove electrode is integrally formed with an AP-side common pad in the electrode clearance groove, and thus the clearance groove electrode and the AP-side common pad are short-circuited. Thus, an electrode separation portion is formed by cutting a short-circuited portion of the clearance groove electrode and the AP-side common pad through cutting or irradiation with laser.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: February 5, 2019
    Assignee: SII PRINTEK INC.
    Inventors: Hitoshi Nakayama, Takeshi Sugiyama, Daichi Nishikawa, Eriko Maeda
  • Patent number: 10183493
    Abstract: A fluid ejection device includes a fluid slot, a plurality of fluid ejection chambers communicated with the fluid slot, a plurality of drop ejecting elements one of each within one of the fluid ejection chambers, a fluid circulation channel communicated with the fluid slot and one or more of the fluid ejection chambers, and a fluid circulating element communicated with the fluid circulation channel. The fluid circulating element is to provide continuous circulation of fluid from the fluid slot through the fluid circulation channel and the one or more of the fluid ejection chambers.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: January 22, 2019
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Alexander Govyadinov, Tommy D Deskins
  • Patent number: 10155384
    Abstract: A drop ejection system includes a working fluid source containing a working fluid, an ink source containing an ink that is immiscible with the working fluid, and at least one drop ejector array module. Each drop ejector array module includes a substrate and an array of drop ejectors disposed on the substrate. Each drop ejector includes a nozzle; an ink inlet connected to the ink source; a working fluid inlet connected to the working fluid source; a pressure chamber in fluidic communication with the nozzle, the ink inlet, and the working fluid inlet; and a heating element configured to selectively vaporize a portion of the working fluid to pressurize the pressure chamber for ejecting ink drops through the nozzle.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: December 18, 2018
    Assignee: RF Printing Technologies LLC
    Inventors: Richard Mu, Yonglin Xie
  • Patent number: 10155380
    Abstract: There is provided a liquid jetting apparatus, including: a first pressure chamber and a second pressure chamber arranged in a first direction; a first insulating film covering the first and second pressure chambers; a first piezoelectric element arranged to face the first pressure chamber with the first insulating film being intervened therebetween; a second piezoelectric element arranged to face the second pressure chamber with the first insulating film being intervened therebetween; a trace arranged between the first and the second piezoelectric elements adjacent to each other in the first direction; and a second insulating film covering the trace. An end, in the first direction, of a part of the second insulating film covering the trace between the first piezoelectric element and the second piezoelectric element is positioned inside an end of a partition wall partitioning the first pressure chamber and the second pressure chamber.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: December 18, 2018
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Taiki Tanaka, Keita Hirai
  • Patent number: 10155381
    Abstract: A liquid discharge head includes a flow passage member and a plurality of pressurizing sections. The flow passage member includes a plurality of discharge holes, a plurality of pressurizing chambers connected to a plurality of the discharge holes, a plurality of first flow passages connected to a plurality of the pressurizing chambers, a second flow passage connected in common to a plurality of the first flow passages, a plurality of third flow passages connected to a plurality of the pressurizing chambers, and a fourth flow passage connected in common to a plurality of the third flow passages. The pressurizing sections pressurize liquid in the pressurizing chambers. The third flow passage has a wide section connected to the pressurizing chamber and a narrow section connecting the wide section and the fourth flow passage. The wide section is disposed toward the discharge hole of the pressurizing chamber.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: December 18, 2018
    Assignee: KYOCERA CORPORATION
    Inventors: Yuka Matsumoto, Naoki Kobayashi, Hiroyuki Kawamura
  • Patent number: 10150291
    Abstract: Provided is an inkjet print head capable of favorably cleaning an ejection port surface and also of improving landing accuracy of ejected ink onto a print medium. For that purpose, a conductive layer formed of a conductive material is formed on a support substrate, flattening processing is executed, and a liquid ejection substrate is mounted on the support substrate with good positional accuracy without protrusion of a sealant for protecting an electric connection portion of the liquid ejection substrate from the ejection port surface.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: December 11, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yoshiyuki Nakagawa
  • Patent number: 10112389
    Abstract: In a common chamber (102) for distributing, to respective pressure chambers (211), an ink supplied from the ink inlet (101), resistant walls (111) are provided in areas that are located ahead and behind of the flow of the ink, i.e., areas around inlets of flow channels (221) that lead to respective pressure chambers (211), and any resistance against the flow of the ink is generated according to the heights of the resistant walls (111), thereby capturing a solid ingredient (150) included in the ink. In this case, by adjusting the heights of the resistant walls (111) to control capabilities of introducing the solid ingredient (150), it becomes possible to dispense desired amounts of the solid ingredient (150) to the respective pressure chamber (211).
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: October 30, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kenichi Yamamoto, Kazuki Fukada, Tohru Nakagawa, Kazunobu Irie, Takeshi Kita, Hidehiro Yoshida
  • Patent number: 10095023
    Abstract: Apparatuses with actuators having actuator-side attachment areas disposed thereon, an optical element having mirror-side attachment areas disposed thereon and springs are described, wherein an optical element is connected to actuators via two or four springs.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: October 9, 2018
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Shanshan Gu-Stoppel, Dirk Kaden, Christian Eisermann
  • Patent number: 10086610
    Abstract: According to one embodiment, an inkjet head includes a plurality of actuators on a substrate in a row and spaced from each other, each actuator extending from the substrate to form a chamber space between each adjacent pair of actuators in the plurality of actuators, a flow passage block including a frame portion surrounding an outer periphery of the plurality of actuators and a blocking portion having protrusions sealing both ends of the chamber spaces between every other adjacent pair of actuators along the row, and a common ink chamber above the flow passage block and in fluid communication with the chamber spaces between any adjacent pairs of actuators not sealed at both ends by the blocking portion with a plurality of chamber spaces.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: October 2, 2018
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Toshio Miyazawa
  • Patent number: 10081185
    Abstract: An opposed surface of a first flow path forming member has a groove portion forming a supply passage, and a protruding portion protruding from the edge of the groove portion to form the side wall of the groove portion. An opposed surface of a second flow path forming member has a lid portion that abuts against the protruding portion of the first flow path forming member to cover the opening of the groove portion in the first flow path forming member. A joining member is formed by injection-molding of a resin to abut against an outer surface of the protruding portion of the first flow path forming member and the opposed surfaces of the first and second flow path forming members.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: September 25, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Kimura, Yukuo Yamaguchi, Mikiya Umeyama, Yasushi Iijima, Kyosuke Toda, Naoko Tsujiuchi, Hiromasa Amma, Takuya Iwano, Satoshi Oikawa
  • Patent number: 10081533
    Abstract: A micromechanical structure includes a substrate and a functional structure arranged at the substrate. The functional structure has a functional region configured to deflect with respect to the substrate responsive to a force acting on the functional region. The functional structure includes a conductive base layer and a functional structure comprising a stiffening structure having a stiffening structure material arranged at the conductive base layer and only partially covering the conductive base layer at the functional region. The stiffening structure material includes a silicon material and at least a carbon material.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: September 25, 2018
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Ulrich Schmid, Tobias Frischmuth, Peter Irsigler, Thomas Grille, Daniel Maurer, Ursula Hedenig, Markus Kahn, Günter Denifl
  • Patent number: 10076918
    Abstract: A liquid-discharging head includes a pressure-generating element configured to be actuated to apply pressure on liquid in a pressure chamber from which the liquid is discharged through a nozzle, an actuation controller configured to control actuation of the pressure-generating element, a heat-releasing member configured to contact the actuation controller, and a cover member configured to cover the actuation controller and part of the heat-releasing member. The heat-releasing member includes a first heat-releasing member and a second heat-releasing member. The first heat-releasing member is arranged outside the cover member and has a surface exposed to external air. The second heat-releasing member is arranged inside the cover member and has a first end portion to contact the actuation controller. The first heat-releasing member and the second heat-releasing member are arranged to contact each other.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: September 18, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tomoaki Murakami, Takahiro Yoshida, Masami Iwama, Takakazu Kihira
  • Patent number: 10071560
    Abstract: An inkjet printhead includes an elongate fluid manifold having a base which includes a truss structure. The truss structure has webs extending between opposite chords, wherein a plurality of openings between the webs and the chords define fluid outlets. One or more printhead chips are attached to the webs of the truss structure with each printhead chip receiving printing fluid from a plurality of the fluid outlets.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: September 11, 2018
    Assignee: Memjet Technology Ltd.
    Inventors: Garry Jackson, Norman Berry, Michael Hudson, Brian Brown, Samuel Mallinson, Geordie McBain
  • Patent number: 10071562
    Abstract: An inkjet printhead includes: an elongate fluid manifold comprising at least one longitudinally extending channel, the fluid manifold having a base defining a plurality of ink outlets, the fluid outlets being spaced apart longitudinally along a floor of the channel; a plurality of printhead chips bonded to the base of the fluid manifold, each printhead chip receiving ink from one or more fluid outlets; and a plurality of transverse ribs positioned across the channel, each transverse rib extending upwardly from the floor of the channel. One or more of the transverse ribs has a recess allowing fluid flow along the floor of the channel between the transverse ribs.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: September 11, 2018
    Assignee: Memjet Technology Ltd.
    Inventors: Garry Jackson, Norman Berry, Michael Hudson, Brian Brown, Samuel Mallinson, Geordie McBain
  • Patent number: 10058881
    Abstract: The invention provides pneumatic shuttering of a focused or collimated aerosol particle stream. The aerosol stream can be collimated by an annular sheath of inert or non-inert gas. The apparatus propagates a sheathed aerosol stream through a series of aerodynamic lenses along the axis of a flow cell. The final lens is typically positioned above a substrate, so that direct material deposition is provided. A substantially perpendicularly-flowing gas external to the aerodynamic lens system is used to redirect the particle stream away from the flow axis and through an exhaust port, thereby shuttering the collimated aerosol stream. The pneumatic shutter enables printing of discreet structures, with on/off shuttering times of approximately 1 to 100 milliseconds.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: August 28, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: David M. Keicher, Adam Cook, Eloy Phillip Baldonado, Marcelino Essien
  • Patent number: 10052689
    Abstract: A jetting device includes: a fluid chamber connected to a nozzle and containing an electrically conductive liquid to be jetted out through the nozzle; a magnetic field generator arranged to create a magnetic field in the fluid chamber; a pair of electrodes contacting the electrically conductive liquid in the fluid chamber; and a controller arranged to control a flow of an electric current through the electrodes and the electrically conductive liquid. The magnetic field generator is arranged to create a rotating magnetic field in the fluid chamber.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: August 21, 2018
    Assignee: OCÉ-TECHNOLOGIES B.V.
    Inventor: Mircea Rasa
  • Patent number: 10005280
    Abstract: A liquid ejecting head (100) includes a pressure chamber substrate (34) on which pressure chamber spaces (342) are formed; a flow path substrate (32) which includes a first face (F1) on which the pressure chamber substrate (34) is provided, and a second face (F2) on a side opposite to the first face (F1), and on which a space (R1), a supply hole (322) which causes the space (R1) and the pressure chamber space (342) to communicate, and a communicating hole (324) which communicates with the pressure chamber space (342) are formed; a nozzle plate (52) which is provided on the second face (F2), and on which nozzles (N) which communicate with the communicating hole (324) are formed; a housing (40) which is provided on the first face (F1), and in which a space (R2) which communicates with the space (R1) of the flow path substrate (32), and an opening portion (422) which communicates with the space (R2) are formed; a flexible compliance unit (54) which is provided on the second face (F2), and seals the communicating
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: June 26, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Fumiya Takino, Shunsuke Watanabe, Kenta Anegawa
  • Patent number: 9969177
    Abstract: In an embodiment, a fluid ejection device includes a die substrate having first and second fluid slots along opposite substrate sides and separated by a substrate central region. First and second internal columns of closed chambers are associated with the first and second slots, respectively, and the internal columns are separated by the central region. Fluidic channels extending across the central region fluidically couple closed chambers from the first internal column with closed chambers from the second internal column. Pump actuators in each closed chamber pump fluid through the channels from slot to slot.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: May 15, 2018
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alexander Govyadinov, Craig Olbrich, Brian M. Taff