Surface Treated Patents (Class 347/45)
  • Patent number: 10864734
    Abstract: According to one embodiment, an inkjet head achieving excellent landing accuracy and an inkjet printer including such an inkjet head are provided. An inkjet head according to one embodiment includes a nozzle plate provided with a nozzle that ejects an ink having a surface tension within a range of 20 to 30 mN/m to a recording medium. The nozzle plate includes a nozzle plate substrate and a fluid repellent film provided on a face opposed to the recording medium of the nozzle plate substrate, and the fluid repellent film contains a fluorine-based compound having a terminal perfluoroalkyl group with 7 or less carbon atoms, and has a static contact angle with pure water within a range of 100° to 120°.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: December 15, 2020
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Masashi Seki
  • Patent number: 10828898
    Abstract: An ink jet head includes a nozzle plate substrate having a nozzle for ejecting ink toward a recording medium and an oil repellent film on a surface of the nozzle plate substrate, the surface facing the recording medium. The oil repellent film includes a fluorine compound having a first end and a second end, the first end having a bonding group bonded to the nozzle plate substrate, the second end having a perfluoroalkyl group, and the bonding group being bonded to a bonding group of an adjacent fluorine compound bonded to the nozzle plate substrate.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: November 10, 2020
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Masashi Seki
  • Patent number: 10822228
    Abstract: A process for forming inkjet nozzle devices on a frontside surface of a wafer substrate. The process includes the steps of: (i) providing the wafer substrate having a plurality of etched holes defined in the frontside surface, each etched hole being filled with first and second polymers such that the second polymer is coplanar with the frontside surface; (ii) forming the inkjet nozzle devices on the frontside surface using MEMS fabrication steps; and (iii) removing the first and second polymers via oxidative ashing, wherein first and second polymers are different.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: November 3, 2020
    Assignee: Memjet Technology Limited
    Inventors: Angus North, Ronan O'Reilly, Gregory McAvoy
  • Patent number: 10814630
    Abstract: Provided herein are a jet hole plate, a liquid jet head, a liquid jet recording apparatus, and a method for manufacturing a jet hole plate that can achieve a long life. A jet hole plate according to an embodiment of the present disclosure is a jet hole plate for use in a liquid jet head. The jet hole plate includes a metal substrate having provided therein a plurality of jet holes. The metal substrate has a principal surface having outlets for the jet holes. The principal surface has a surface roughness (arithmetic mean roughness Ra) that is smaller in outlet edge regions of the jet holes than in surrounding regions around the outlet edge regions.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: October 27, 2020
    Assignee: SII PRINTEK INC.
    Inventors: Masakazu Hirata, Kenji Takano, Tomoki Sodetai
  • Patent number: 10799892
    Abstract: The present invention is directed to methods of improving accuracy of droplet metering using at least one on-actuator reservoir as the fluid input. In some embodiments, the on-actuator reservoir that is used for metering droplets includes a loading port, a liquid storage zone, a droplet metering zone, and a droplet dispensing zone. The on-actuator reservoirs are designed to prevent liquid flow-back into the loading port and to prevent liquid from flooding into the droplet operations gap in the dispensing zone.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: October 13, 2020
    Assignee: ADVANCED LIQUID LOGIC, INC.
    Inventors: Uichong B. Yi, Vijay Srinivasan
  • Patent number: 10792922
    Abstract: An ink jet head includes a nozzle plate substrate having a nozzle for ejecting ink toward a recording medium and an oil repellent film on a surface of the nozzle plate, the surface facing the recording medium. The oil repellent film comprises a terminal perfluoroalkyl group including a CF2 group, a CF3 group, and a CF3+? group.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: October 6, 2020
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Masashi Seki
  • Patent number: 10786992
    Abstract: A liquid ejection head includes an ejection opening member having an ejection opening therein through which a liquid is ejected, and a liquid-repellent layer over the ejection opening member. The liquid-repellent layer contains a fluorine-containing compound, metal oxide particles, and an amphiphilic compound.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: September 29, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Miho Ishii
  • Patent number: 10751991
    Abstract: An inkjet head includes a nozzle plate substrate having a nozzle for ejecting ink toward a recording medium, and an oil repellent layer on a surface of the nozzle plate substrate, the surface facing the recording medium. The oil repellent layer comprises a fluorine-based compound in which neighboring molecules are cross-linked in a direction parallel to the surface, and cross-links of the neighboring molecules are resistant to structural change when subjected to rubbing by an ink wiping blade.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: August 25, 2020
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Masashi Seki
  • Patent number: 10661565
    Abstract: In a circulating system which circulates liquid within a liquid ejecting head, thickening of liquid in the vicinity of an ejection port section can be more securely suppressed. The ejection port section includes a first ejection port disposed at an upstream side with respect to an ejecting direction of ink and a second ejection port disposed at a downstream side with respect to the ejecting direction. The second ejection port includes an enlarged diameter portion whose diameter is enlarged in a radially outward manner from at least a part of an opening edge portion of the first ejection port.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: May 26, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiyuki Nakagawa, Takuro Yamazaki, Kazuhiro Yamada, Toru Nakakubo
  • Patent number: 10663237
    Abstract: The present disclosure relates to a heat transfer tube comprising nanostructures formed on the surface, and a method for manufacturing the same, and by forming nanostructures on a heat transfer tube surface, a superhydrophobic surface may be obtained under a high temperature environment as well. In addition, superhydrophobicity may be enhanced by further forming a hydrophobic coating layer on the nanostructure-formed heat transfer tube surface. By using a method of forming nanostructures by dipping the heat transfer tube surface, complex shapes may be coated, and therefore, a plurality of assembled heat transfer tubes may be coated, and damages occurring during a process of assembling the heat transfer tube after coating may be prevented.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: May 26, 2020
    Assignees: Doosan Heavy Industries Construction Co., Ltd., UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Jin Bum Kim, Hyun Sik Kim, Young Suk Nam, Kyoung Hwan Song, Seung Tae Oh, Jae Hwan Shim, Dong Hyun Seo
  • Patent number: 10603916
    Abstract: A method of making a fluid channel in a printhead structure includes positioning a printhead die on a carrier; compression molding the die into a molded printhead structure; compression molding a first segment of a fluid channel into the molded printhead structure simultaneously with compression molding the die; and materially ablating a second segment of the fluid channel to couple the channel with a fluid feed hole in the die.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: March 31, 2020
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Chien-Hua Chen, Michael W. Cumbie
  • Patent number: 10603914
    Abstract: In an MEMS device, in a Z direction that is a direction in which a first core portion, a plurality of first bump wiring, and a plurality of first individual wiring are laminated, a width between the first core portion and a wiring substrate is wider than a maximum particle diameter of solid particles contained in an adhesive, and a width between a first wiring and a second wiring and a width between a third wiring and a fourth wiring are wider than the maximum particle diameter of the solid particles.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: March 31, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Masashi Fujioka, Eiju Hirai, Isao Yanagisawa, Ikuya Miyazawa
  • Patent number: 10583651
    Abstract: A droplet deposition head having a fluid chamber connected to a droplet ejection nozzle and to a reservoir for the fluid, and a piezoelectric actuator element formed at least in part by a fluid chamber wall having an electrode thereon, which element is displaceable in response to a drive voltage to generate a pressure in the chamber to eject a droplet of fluid from the chamber through the nozzle wherein the electrode is provided with a passivation coating which comprises, at least in part, a laminate comprising an inorganic insulating layer nearest to or contacting the electrode and an organic insulating layer overlying the inorganic insulating layer wherein defects in the insulating layers tend to be misaligned at the interface there between and wherein the inorganic insulating layer has thickness less than or equal to 500 nm and the organic insulating layer has a thickness less than 3 ?m.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: March 10, 2020
    Assignee: XAAR TECHNOLOGY LIMITED
    Inventors: Song-Won Ko, Peter Mardilovich, John Philip Tatum, Alexandru Cazacu
  • Patent number: 10464327
    Abstract: There are provided an inkjet recording device that can stably secure liquid-repellent performance on a surface of a liquid-repellent film formed on a nozzle surface for a long term, and a maintenance method thereof. The inkjet recording device includes: an inkjet head that has a nozzle surface in which a nozzle opening of a nozzle to eject a liquid is formed and on which a liquid-repellent film is formed with an amorphous fluorine resin material; a cleaning portion that wipes off and cleans a surface of the liquid-repellent film by a wiping member; and a liquid-repellent performance recovery processing portion that performs liquid-repellent performance recovery processing to recover liquid-repellent performance on the surface of the liquid-repellent film by heating the liquid-repellent film.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: November 5, 2019
    Assignee: FUJIFILM Corporation
    Inventor: Shuji Takahashi
  • Patent number: 10457046
    Abstract: There is provided a nozzle substrate including a nozzle hole penetrating in a thickness direction. The nozzle substrate includes a main substrate including a first surface and a second surface, an adhesion layer formed on the second surface of the main substrate, and a water repellent film formed on a surface at an opposite side to the main substrate side of the adhesion layer. The nozzle hole includes a recessed part formed on the first surface of the main substrate, and an ink ejecting path formed on a bottom surface of the recessed part and penetrating a bottom wall of the recessed part. The ink ejecting path includes a first ink ejecting path, a second ink ejecting path, and a third ink ejecting path. An inner circumference surface of the third ink ejecting path is approximately perpendicular to the second surface of the main substrate.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: October 29, 2019
    Assignee: ROHM CO., LTD.
    Inventor: Eitaro Kurokawa
  • Patent number: 10399340
    Abstract: A nozzle plate includes a nozzle from which a liquid is ejected and that has an opening at one surface side of the nozzle plate and a liquid repelling layer containing a cross-linked fluororesin and formed on the one surface side of the nozzle plate.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: September 3, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Takashi Saiba, Yasutaka Matsumoto, Takuya Miyakawa
  • Patent number: 10363743
    Abstract: A liquid ejecting head has a nozzle forming surface to which a nozzle section through which liquid is ejected is open, wherein an electrostatic propensity of the nozzle section due to contact with the liquid is lower than an electrostatic propensity of the nozzle forming surface due to contact with the liquid. The amount of fluorine per unit area in the nozzle section is smaller than the amount of fluorine per unit area in the nozzle forming surface.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: July 30, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Kinya Ozawa, Kazuhiko Hara
  • Patent number: 10357966
    Abstract: A liquid jetting head includes a flow channel substrate formed with pressure chambers, an actuator covering the pressure chambers, and a temperature sensor. A dummy pressure chamber is formed in a surface, of the flow channel substrate, in which the pressure chambers are open. The actuator includes: a vibration plate which covers the pressure chambers and the dummy pressure chamber and which has a first surface facing the pressure chambers and a second surface opposite to the first surface, and a piezoelectric body arranged on the second surface of the vibration plate to face the pressure chambers. The temperature sensor is arranged on the second surface of the vibration plate at a position facing the dummy pressure chamber.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: July 23, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yuichi Ito, Keita Hirai, Taisuke Mizuno, Hideki Hayashi
  • Patent number: 10279589
    Abstract: A method for manufacturing a structure includes, preparing a substrate with a recessed portion provided therein, attaching a film including a photosensitive resin layer containing photosensitive resin therein and a support layer to the substrate to cover the recessed portion with the photosensitive resin layer, irradiating the photosensitive resin layer covering the recessed portion with light via the support layer to form a latent image pattern on the photosensitive resin layer, heating the photosensitive resin layer at 30 degrees Celsius or higher and X degrees Celsius or lower for one minute or longer, wherein a softening point of the photosensitive resin is X degrees Celsius (X?30), separating the support layer from the photosensitive resin layer, heating the photosensitive resin layer at X+10 degrees Celsius or higher, and carrying out development on the photosensitive resin layer.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: May 7, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Manabu Otsuka, Tetsushi Ishikawa, Yasuaki Tominaga, Tamaki Sato
  • Patent number: 10252527
    Abstract: In some examples, a fluid nozzle includes an aperture comprising a first lobe that is shaped as an ellipse, and a second lobe that has a non-circular shape and has a different size than a size of the first lobe. The fluid nozzle further includes protrusions between the first and second lobes extending inward and forming a throat between the first and second lobes.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: April 9, 2019
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: James A. Feinn, David P. Markel, Albert Nagao, Thomas R. Strand, Paul A. Richards, Lawrence H. White, Erik D. Torniainen
  • Patent number: 10174217
    Abstract: Provided is an ink including: a coloring material; an organic solvent; resin particles; an amine compound; and water, wherein the resin particles include urethane resin particles, and urethane-modified acrylic resin particles including a core portion containing an acrylic resin and a shell portion formed on a surface of the core portion and containing at least a urethane resin, and wherein the amine compound has a boiling point of 120 degrees C. or higher but 200 degrees C. or lower and a molecular weight of 100 or less.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: January 8, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroaki Takahashi, Michihiko Namba, Kiminori Masuda, Amika Sagara
  • Patent number: 10128468
    Abstract: Embodiments of the disclosed subject matter provide a nozzle assembly and method of making the same, the nozzle assembly including a first aperture formed on a first aperture plate to eject a carrier gas flow having organic vapor onto a substrate in a deposition chamber, second apertures formed on a second aperture plate disposed adjacent to the first aperture to form a vacuum aperture, where the first aperture plate and the second aperture plate are separated by a first separator plate, third apertures formed on a third aperture plate to eject purge gas that are disposed adjacent to the second aperture plate, where the second aperture plate and the third aperture plate are separated by second separator plate, and a third separator plate is disposed adjacent to the one or more third aperture plates to form a gas channel in the one or more third aperture plates.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: November 13, 2018
    Assignee: Universal Display Corporation
    Inventors: William E. Quinn, Gregory McGraw, Siddharth Harikrishna Mohan, Matthew King, Elliot H. Hartford, Jr.
  • Patent number: 10124588
    Abstract: A method of making inkjet print heads may include forming recesses in a first surface of a first wafer to define inkjet chambers. The method may also include forming openings extending from a second surface of the first wafer through to respective ones of the inkjet chambers to define inkjet orifices. The method may further include forming a second wafer including ink heaters, and joining the first and second wafers together so that the ink heaters are aligned within respective inkjet chambers to thereby define the inkjet print heads.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: November 13, 2018
    Assignee: STMICROELECTRONICS, INC.
    Inventors: Murray J. Robinson, Kenneth J. Stewart
  • Patent number: 10006564
    Abstract: A fluid control valve includes a passage block formed with a passage, a valve seat provided in the passage block, and a valve element to be brought into contact with or separated from the valve seat. The fluid control valve is configured to open and close the passage by movement of the valve element with respect to the valve seat to control a fluid. The fluid control valve further includes a shape-changeable part which changes its shape in association with the movement of the valve element. The shape-changeable part has a surface formed with a monomolecular film of fluorosilane material.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: June 26, 2018
    Assignee: CKD CORPORATION
    Inventors: Yoshimasa Okamura, Yoji Mori
  • Patent number: 9987850
    Abstract: A printhead assembly is provided, the printhead assembly including a printhead die, a black fluid slot formed in the printhead die to deliver black printing fluid, and a color fluid slot formed in the printhead die to deliver color printing fluid.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: June 5, 2018
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David Maxfield, Sean P. McClelland
  • Patent number: 9956777
    Abstract: An orifice surface is provided with a coating. A molecule for forming the coating is bonded to the orifice surface through a silicon-carbon bond. The molecule constituting the coating comprises exactly one fluoro-atom. A print head is provided with such orifice surface. In addition, a methods of manufacturing such orifice surface and a method of printing using a print head provided with such orifice surface are disclosed.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: May 1, 2018
    Assignee: OCÉ- TECHNOLOGIES B.V.
    Inventors: Zhanhua Wang, Han Zuilhof, Marc Van Den Berg
  • Patent number: 9844660
    Abstract: A three-dimensional neural probe electrode array system is described. Planar probes are microfabricated and electrically connected to flexible micro-machined ribbon cables using a rivet bonding technique. The distal end of each cable is connected to a probe with the proximal end of the cable being customized for connection to a printed circuit board. Final assembly consists of combining multiple such assemblies into a single structure. Each of the two-dimensional neural probe arrays is positioned into a micro-machined platform that provides mechanical support and alignment for each array. Lastly, a micro-machined cap is placed on top of each neural electrode probe and cable assembly to protect them from damage during shipping and subsequent use. The cap provides a relatively planar surface for attachment of a computer controlled inserter for precise insertion into the tissue.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: December 19, 2017
    Assignee: NEURONEXUS TECHNOLOGIES, INC.
    Inventors: Rio J. Vetter, Jamille Farraye Hetke, David S. Pellinen, Bencharong Suwarato, Kc Kong
  • Patent number: 9802410
    Abstract: A method of manufacturing an ink jet print head capable of bonding the printing element substrate to the support surface with high precision in a reduced period of time is provided. For this purpose, raised flat portions are formed in the support surface of the supporting member to provide in an adhesive layer between the printing element substrate and the supporting member a portion of the thermosetting adhesive that is thinner than others. After the relative positions of the printing element substrate and the supporting member are adjusted, the thin portions of the adhesive layer are hardened. This enables the printing element substrate to be bonded to the supporting member in a relatively short period of time. As a result, if there are undulations on the support surface, the printing element substrate can be bonded to the supporting member with high precision, improving the mass productivity of the print head.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: October 31, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hirotaka Miyazaki
  • Patent number: 9707761
    Abstract: A nozzle plate for a fluid-ejection device, comprising: a first substrate made of semiconductor material, having a first side and a second side; a structural layer extending on the first side of the first substrate, the structural layer having a first side and a second side, the second side of the structural layer facing the first side of the first substrate; at least one first through hole, having an inner surface, extending through the structural layer, the first through hole having an inlet section corresponding to the first side of the structural layer and an outlet section corresponding to the second side of the structural layer; a narrowing element adjacent to the surface of the first through hole, and including a tapered portion such that the inlet section of the first through hole has an area larger than a respective area of the outlet section of the first through hole.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: July 18, 2017
    Assignees: STMICROELECTRONICS S.R.L., STMICROELECTRONICS, INC.
    Inventors: Dino Faralli, Michele Palmieri
  • Patent number: 9656470
    Abstract: A liquid ejecting head includes a driving element for ejecting a liquid from a nozzle; a wiring electrically connected to the driving element; an accommodation space that accommodates at least a portion of the wiring; and dummy wirings which are arranged in the accommodation space and adsorb sulfur.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: May 23, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Hiroyuki Kobayashi, Hiroyuki Hagiwara, Toshinobu Yamazaki
  • Patent number: 9561655
    Abstract: A liquid discharging head includes a nozzle plate including a nozzle substrate having a plurality of nozzle holes to discharge a liquid therethrough and a plurality of dimples on the discharging surface of the nozzle substrate to hold a liquid repellent material inside the plurality of dimples in a flowable manner and a liquid repellency film formed by the liquid repellent material on the discharging surface of the nozzle substrate.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: February 7, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tomohiro Tamai, Toshiroh Tokuno
  • Patent number: 9493011
    Abstract: A filling liquid for distribution of an ink jet head of a thermal type, the filling liquid filling a nozzle flow path during distribution of the ink jet head, a hydrophilic region formed on a periphery of an ink discharge port having an opening area of from 100 to 350 ?m2, the filling liquid including: an aqueous medium having at least a water-soluble organic compound and water as constituents; and a dye dissolved in the aqueous medium, a concentration of the dye in the filling liquid being 0.2 mass % or more and 1 mass % or less with respect to a total mass of the filling liquid and the concentration of the dye being equal to or less than saturation solubility with respect to the water-soluble organic compound, wherein the filling liquid has a surface tension of 25 mN/m or more and 34 mN/m or less.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: November 15, 2016
    Assignee: Canon Finetech Inc.
    Inventors: Eriko Himura, Shintaro Suzuki, Yusuke Sumikawa, Takahiro Tsutsui, Shoji Koike
  • Patent number: 9463623
    Abstract: A liquid ejection head includes channel forming members and a surface treatment film. The channel forming members are joined to each other via an adhesive agent to form a channel for liquid. The surface treatment film is formed on a surface of at least one of the channel forming members. The surface treatment film is an oxidized film including Si. The oxidized film further includes a transition metal forming a passive film.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: October 11, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Daisuke Takagi, Hisashi Habashi, Tomoyuki Aratani, Tatsuya Sameshima, Shinichi Kakuda, Keisuke Hayashi, Juichi Furukawa
  • Patent number: 9421771
    Abstract: A liquid ejection head includes a recording element substrate that ejects liquid, and an element-substrate support member to which the recording element substrate is bonded with an adhesive. A groove to be filled with the adhesive is provided in a bonding region of the element-substrate support member, at which the element-substrate support member and the recording element substrate are bonded together, along a part or an entirety of the outer circumference of the recording element substrate.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: August 23, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Junji Tatsumi, Genji Inada, Sayaka Seki, Yuichiro Akama
  • Patent number: 9416237
    Abstract: An organo siloxy network film composition including at least one type of tether molecule having a siloxy functionality; at least one type of building block having a siloxy functionality; wherein the tether molecule and the building block each have the same siloxy functionality; and wherein the siloxy functionality in the organo siloxy network film is derived from the same siloxy functionality on both the tether molecules and the building blocks.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: August 16, 2016
    Assignee: Xerox Corporation
    Inventors: Adrien Pierre Cote, Brynn Mary Dooley, Anthony Wigglesworth
  • Patent number: 9394409
    Abstract: Provided is an ink jet recording head, including a member provided with an ejection orifice for ejecting ink, in which the ink jet recording head further includes a water-repellent layer including a cured product of a condensed product obtained by condensation of a hydrolyzable silane compound having an epoxy group and a hydrolyzable silane compound having a perfluoropolyether group on a surface of the member on a side on which the ejection orifice opens.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: July 19, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Etsuko Sawada, Hiroaki Mihara, Ken Ikegame, Satoshi Tsutsui, Yohei Hamade
  • Patent number: 9381747
    Abstract: A flow path component includes a first flow path member that includes a first flow path, a second flow path member that includes a second flow path which communicates with the first flow path, a covering layer that coats a wall surface of the first flow path, and an adhesion layer that adheres the first flow path member and the second flow path member with each other and covers at least a part of an end portion of the covering layer. Also, at least a part of the first flow path of the first flow path member is configured as a pressure chamber that applies pressure to a liquid which is supplied.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: July 5, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Hajime Nakao
  • Patent number: 9358785
    Abstract: According to one embodiment, an inkjet head includes a nozzle plate including a first surface, a second surface opposite to the first surface, a through hole configured to make the first surface communicate with the second surface, and a cylindrical member integrally extending from the second surface by extending the through hole. An ink pressure chamber communicating with the cylindrical member and the through hole is provided on the second surface side of the nozzle plate. This inkjet head also includes an actuator which discharges ink in the ink pressure chamber from the through hole by displacing the nozzle plate.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: June 7, 2016
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Takashi Kawakubo, Kazuhide Abe, Yasushi Tomizawa, Ryuichi Arai, Ryutaro Kusunoki, Osamu Takagi
  • Patent number: 9353291
    Abstract: An inkjet printhead includes a front face having a polymer coating, the polymer coating including an oleophobic grafted polymer having a crosslinked fluoroelastomer and a perfluorinated fluorosilicone grafted to the crosslinked fluoroelastomer. The polymer coating has an ink contact angle of at least about 45 degrees and an ink slide angle of less than about 35 degrees.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: May 31, 2016
    Assignee: XEROX CORPORATION
    Inventors: Mandakini Kanungo, Varun Sambhy, David Gervasi, Santokh Badesha, Matthew Kelly, Peter Michael Gulvin
  • Patent number: 9321269
    Abstract: A method for application of an anti-wetting coating to a substrate of a semiconductor material is described. The method includes applying to a support a solution of a hydrocarbon comprising at least one unsaturated bond and, optionally, at least one hetero-atom for obtaining a layer of hydrocarbons. The method also includes treating at least one surface of the substrate of the semiconductor material with an acid. The layer of hydrocarbons is transferred from the support to the surface of the substrate of the semiconductor material. The layer of hydrocarbons is chemically coupled with the surface of the substrate of the semiconductor material. The method may be applied to an integrated ink jet printhead provided with a nozzle plate in which the nozzle plate serves as the substrate of the semiconductor material.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: April 26, 2016
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Vincenza Di Palma, Fabrizio Porro
  • Patent number: 9278532
    Abstract: The present invention provides a process for producing a liquid ejection head, the process including: (1) forming a mold pattern of a liquid flow path and a base pattern surrounding the mold pattern on a substrate, (2) disposing a covering layer to cover the mold pattern and the base pattern, (3) forming at least an ejection orifice in the covering layer to form an orifice plate, and (4) removing the mold pattern and the base pattern, in which the base pattern has such a form that the orifice plate is formed to have a side wall portion constituting a side wall of the liquid flow path and a plurality of support structures that are disposed on the substrate in a peripheral region of the side wall portion and support an upper surface portion constituting an upper wall of the orifice plate.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: March 8, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuhiro Asai, Tetsuro Honda
  • Patent number: 9273187
    Abstract: Provided is an ink jet recording head, including a member provided with an ejection orifice for ejecting ink, in which the ink jet recording head further includes a water-repellent layer including a cured product of a condensed product obtained by condensation of a hydrolyzable silane compound having an epoxy group and a hydrolyzable silane compound having a perfluoropolyether group on a surface of the member on a side on which the ejection orifice opens.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: March 1, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Etsuko Sawada, Hiroaki Mihara, Ken Ikegame, Satoshi Tsutsui, Yohei Hamade
  • Patent number: 9272516
    Abstract: When a lower surface of a liquid ejecting head is formed by a nozzle plate and a cover member, a surface of the nozzle plate and a surface of the cover member are water-repellent surfaces and side surfaces of the nozzle plate and the cover member are relatively hydrophilic surfaces compared to the surfaces and a gap between the nozzle plate and the cover member is filled with a filling material. If at least the side surface of the nozzle plate is covered by the filling material, the nozzle plate can be protected from static electricity. Further, if the side surface of the cover member is filled with the filling material, wiping by a wiper is improved.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: March 1, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Katsumi Enomoto, Shunsuke Watanabe
  • Patent number: 9259927
    Abstract: A liquid discharge head includes a channel plate, a diaphragm member, a piezoelectric element, and a temperature detector. The channel plate includes an individual liquid chamber in communication with a nozzle to discharge a droplet. The diaphragm member forms part of a wall face of the individual liquid chamber. The piezoelectric element is disposed on the diaphragm member and includes a lower electrode, a piezoelectric substance, and an upper electrode. The temperature detector is disposed on the diaphragm member and includes an electrode layer formed on the diaphragm member and a piezoelectric substance layer formed on the electrode layer.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: February 16, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventor: Takeshi Miyazaki
  • Patent number: 9254657
    Abstract: An inclined plane which inclines toward a lower plane of a ceiling portion, that is, the lower plane of a communication substrate from a ceiling plane of a second liquid chamber is formed in the second liquid chamber of the communication substrate. Therefore, an individual communication opening is formed, in a state of penetrating the communication substrate from the inclined plane. One end (lower end) of the individual communication opening communicates with the second liquid chamber by being open onto the inclined plane, and the other end (upper end) of the individual communication opening individually communicates with a pressure chamber of a pressure chamber forming substrate by being open onto an upper plane of the communication substrate. When a thickness of the communication substrate is referred to as T, a length of the individual communication opening is referred to as L, and a substantial depth of the second liquid chamber is referred to as D, the dimensions are configured so as to be L+D>T.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: February 9, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Motoki Takabe, Koji Asada, Hidemichi Furihata, Hiroyasu Asakawa
  • Patent number: 9216570
    Abstract: A process for producing a liquid ejection head, comprising providing a substrate with an energy-generating element for ejecting liquid and a wiring; forming a flow path wall forming layer containing a negative photosensitive resin on the substrate; exposing a portion to be a flow path wall of the flow path wall forming layer; forming an ejection orifice forming layer containing a negative photosensitive resin on the flow path wall forming layer; applying a material for a water-repellent layer onto the ejection orifice forming layer; drying a solvent contained in the applied material to form the water-repellent layer; exposing another region than a portion to be an ejection orifice of the ejection orifice forming layer and the water-repellent layer; and dissolving and removing the non-exposed portions, wherein the boiling point of the solvent is not more than the drying temperature in the step to form the water-repellent layer.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: December 22, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keiji Matsumoto, Kazuhiro Asai, Kunihito Uohashi
  • Patent number: 9211711
    Abstract: A liquid ejecting head includes an oscillation unit and a circuit board which is electrically connected to the oscillation unit within a case, in which the case includes ink introduction needles which are provided on a nozzle plate of an opposite side from a nozzle surface on which nozzles are formed and a liquid discharge path, one end of which is open in the base plate, and another of which extends to a nozzle surface side and is open toward an exterior of the case, and in which, while an opening of one end side of the liquid discharge path is positioned higher than the circuit board side in a vertical direction in the case, an opening of another end side of the liquid discharge path is positioned lower than the circuit board in the vertical direction in the case.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: December 15, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Yasuyuki Kudo
  • Patent number: 9163755
    Abstract: A flow passage component according to the present invention is a component composed of ceramics, which forms a flow passage through which a liquid flows. The flow passage has a discharge opening at an end of the flow passage, for discharging the liquid in the flow passage to a space outside of the flow passage component. The discharge opening is exposed to the outside space. A flow passage wall surface forming the flow passage is covered by/with a protection film (parylene-film) formed of a paraxylylene-based polymer. Further, the parylene-film is formed so as to have its end at a position upstream of the discharge opening by a predetermined distance along the flow passage wall surface from the discharge opening. This can decrease a possibility that the liquid goes around the “outer wall surface on which the discharge opening is formed.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: October 20, 2015
    Assignee: NGK Insulators, Ltd.
    Inventors: Hideki Shimizu, Takashi Ebigase
  • Patent number: 9150697
    Abstract: Provided is an ink jet recording head, including a member provided with an ejection orifice for ejecting ink, in which the ink jet recording head further includes a water-repellent layer including a cured product of a condensed product obtained by condensation of a hydrolyzable silane compound having an epoxy group and a hydrolyzable silane compound having a perfluoropolyether group on a surface of the member on a side on which the ejection orifice opens.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: October 6, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Etsuko Sawada, Hiroaki Mihara, Ken Ikegame, Satoshi Tsutsui, Yohei Hamade
  • Patent number: 9114637
    Abstract: A first irradiation section has a light source and an emitting member. The light source generates radiation, and the emitting member is located between a first irradiation point and a virtual plane that extends through the edge of a nozzle surface closest to the first irradiation section tangentially to a curved surface. The radiation generated by the light source goes out through the emitting member. A control section controls a transportation speed in such a manner that ink dots formed at a dot formation point should move to the first irradiation point in a second time period that is equal to or shorter than a first time period. The first time period is the time period from the time immediately after the ink dots are formed to the time when the diameter of the ink dots reaches twice the nozzle pitch.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: August 25, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Toshio Tanaka, Kazuhito Hori