Fluid Pattern Dispersing Device Making, E.g., Ink Jet Patents (Class 29/890.1)
  • Publication number: 20150109370
    Abstract: A method of manufacturing a printhead substrate, including forming a metal pattern, including a portion forming a pair of electrodes, on an insulating member, forming a conductive film which covers the insulating member and the metal pattern, including a first portion forming a temperature detection element and a second portion except for the first portion, etching the second portion so as to form the pair of electrodes, and etching the first portion so as to form the temperature detection element which is connected to the pair of electrodes, wherein an etching amount in the etching the second portion is larger than a thickness of the conductive film, and an etching amount in the etching the first portion is smaller than the etching amount in the etching the second portion.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 23, 2015
    Inventors: Ershad Ali Chowdhury, Takayuki Kimura, Kenji Makino
  • Patent number: 9009973
    Abstract: A method for manufacturing a liquid discharging head, the method including forming a plurality of nozzles that discharge liquid droplets, forming a plurality of piezoelectric elements that generate pressure for discharging liquid droplets from the respective nozzles; and performing a repolarization process on the piezoelectric elements to set non-uniformity of the droplet discharging characteristics of the nozzles to be in a predetermined range by combining adjustment of a polarization sensitivity and adjustment of a polarization voltage for each of the piezoelectric elements.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: April 21, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Takahiro Yamada, Tomohiko Koda, Hitoshi Kida
  • Patent number: 9003620
    Abstract: A process for producing a liquid ejection head having a piezoelectric body provided with an ejection orifice for ejecting liquid and a pressure chamber communicating therewith for retaining the liquid, wherein an electrode is formed on an inner wall surface of the pressure chamber to deform the pressure chamber by piezoelectric action caused by applying voltage to the electrode to eject the liquid, comprising providing the piezoelectric body in which a surface thereof having the ejection orifice has an arithmetic mean roughness of 0.1-1 ?m, forming a dry film resist pattern on the surface of the piezoelectric body so as to expose the ejection orifice and a linear region connected thereto, and forming a metal thin film pattern being connected to the electrode on the inner wall surface and continuously extending from the inner wall surface to the linear region by using the dry film resist pattern as a mask.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: April 14, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinan Wang, Toru Nakakubo, Hirotaka Sekiguchi
  • Publication number: 20150097897
    Abstract: An ink jet printhead includes a nozzle plate including a nozzle, a recess in the nozzle plate, and a compliant layer that covers the recess and forms a sealed pocket that may be filled with air or another gas during use of the printhead. During actuation of a piezoelectric element during the ejection of ink from the nozzle, the sealed pocket attenuates an acoustic energy generated by the piezoelectric element, thereby reducing crosstalk to adjacent nozzles by the acoustic energy.
    Type: Application
    Filed: October 8, 2013
    Publication date: April 9, 2015
    Applicant: XEROX CORPORATION
    Inventors: Gary D. Redding, Mark A. Cellura, Peter J. Nystrom, Andrew W. Hays
  • Patent number: 8991052
    Abstract: A method of manufacturing a liquid ejecting head includes forming a first electrode made of platinum, forming a buffer layer made of a compound having a pyrochlore structure that contains bismuth or platinum on the first electrode, forming an oxide layer made of an oxide containing bismuth on the buffer layer, forming a piezoelectric layer made of a compound having a perovskite structure that contains bismuth by burning the oxide layer, and forming a second electrode on the piezoelectric layer.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: March 31, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Tomohiro Sakai
  • Patent number: 8991051
    Abstract: This invention is a manufacturing method of a liquid discharge head that includes a substrate having a plurality of discharge energy generating elements that generate energy that is utilized for discharging a liquid, and a discharge port forming member that constitutes a discharge port group including a plurality of discharge ports that discharge the liquid and flow paths that communicate with the discharge port group. The manufacturing method includes (1) disposing a photosensitive resin as material of the discharge port forming member on or above the substrate, and (2) forming an exposure pattern of the discharge port group using ultraviolet light in the photosensitive resin. In the aforementioned (2), the discharge port group is divided in a longitudinal direction and exposed, and the exposures are respectively performed so that regions in which there is a high degree of telecentricity face each other.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: March 31, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shin Ishimatsu, Kenji Fujii, Toshiaki Kurosu, Takanobu Manabe, Chiaki Muraoka, Sayaka Takahashi, Yukuo Yamaguchi
  • Patent number: 8991050
    Abstract: The present invention describes a method for manufacturing rotogravure cylinders with a cylinder base made of a light weight material like aluminum. The method involves the surface treatment of the cylinder with mechanical means, the copper plating in an appropriate solution, the engraving of the cylinder, and the hardening of the cylinder by chromium plating. The advantage of this method is that the chemical treatment for the preparation of the cylinder surface which generates hazardous waste is replaced by a mechanical process. In addition, the reduction of the cylinder weight considerably (e.g. for aluminum base cylinder the weight reduction is two thirds of the weight of a steel base cylinder) reduces significantly the transportation costs. Moreover, the adhesion of the copper layer to be engraved is improved and the cost and time of manufacturing reduced.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: March 31, 2015
    Assignee: Artio SARL
    Inventor: Ioannis Ioannou
  • Patent number: 8984752
    Abstract: A method for forming a printhead including one or more channels. The method can include depositing and selectively sintering a first layer of powder into a sintered layer that forms a first discrete cross-sectional region of a printhead structure for the printhead. A plurality of layers of powder can be sequentially deposited and selectively sintered into a plurality of sintered layers that form discrete cross-sectional regions of the printhead structure and form at least a portion of at least one or more channels. Each of the plurality of layers of powder is deposited directly onto at least one sintered layer. Each of the plurality of sintered layers is integrally bonded to at least one other sintered layer.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: March 24, 2015
    Assignee: Xerox Corporation
    Inventors: Gary D. Redding, Mark A. Cellura, Bryan R. Dolan
  • Publication number: 20150070441
    Abstract: An ink jet printhead including a thermo-pneumatic actuator array for ejecting ink from an array of nozzles. The actuator array may include a plurality of channels in fluid communication with a plurality of working fluid chambers. After completing formation of the actuator array, working fluid may be injected into a working fluid inlet on an exterior of the actuator array and into the plurality of working fluid chambers through the plurality of channels.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Applicant: XEROX CORPORATION
    Inventors: Peter J. Nystrom, Andrew W. Hays
  • Publication number: 20150070440
    Abstract: An ink jet printhead including a thermo-pneumatic actuator array for ejecting ink from an array of nozzles. The actuator array may include the use of a silicon-on-insulator (SOI) semiconductor wafer including a device layer, a handle layer, and a dielectric layer that physically separates the device layer from the handle layer to simplify printhead formation. During an exemplary process, the SOI wafer is attached to a heater wafer and a nozzle plate is attached to the dielectric layer such that, during use of the printhead, the device layer functions as an actuator membrane. Deflection of the device layer during use of the printhead creates a pressure within an ink chamber which causes ejection of ink from one of the nozzles of the array of nozzles.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Applicant: XEROX CORPORATION
    Inventors: Peter J. Nystrom, Andrew W. Hays, Peter M. Gulvin
  • Publication number: 20150068036
    Abstract: A method for manufacturing liquid ejection heads includes the steps of forming ejection port members on a substrate, the ejection port members each having a liquid channel and an ejection port for ejecting liquid through the channel, the liquid channel communicating with the substrate; forming supply ports passing through the substrate to supply liquid to the channels; and forming a separation groove in the substrate to separate the substrate for each liquid ejection head. The step of forming the ejection port members includes the step of hardening a material constituting the ejection port member by heat treatment. The step of forming the separation groove is performed before the step of hardening.
    Type: Application
    Filed: September 5, 2014
    Publication date: March 12, 2015
    Inventors: Seiichiro Yaginuma, Keiji Matsumoto, Koji Sasaki
  • Patent number: 8973228
    Abstract: A vibration layer is formed by the AD method on a cavity plate before forming pressure chambers, a common electrode is formed on the vibration layer, and a piezoelectric layer is formed on the common electrode by the AD method. Subsequently, the pressure chambers are formed in the cavity plate by the etching. After that, individual electrodes are formed on the piezoelectric layer. Subsequently, the stack of the cavity plate, the vibration layer, the common electrode, the piezoelectric layer, and the individual electrodes is heated at about 850° C. to simultaneously perform the annealing of the piezoelectric layer and the sintering of the individual electrodes and the common electrode. Accordingly, the atoms of the cavity plate are suppressed from being diffused into the driving portions of the piezoelectric layer.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: March 10, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hiroto Sugahara
  • Publication number: 20150062262
    Abstract: A printer assembly includes a carrier module and a first guide element. The carrier module includes side portions extending in a first orientation and a mounting portion to receive an ink cartridge. The first guide element is removably mounted on the carrier module and includes protrusions, extending outward beyond each side portion, to slidably engage a guide structure of a carriage cavity during at least a portion of removable insertion of the carrier module into the carriage cavity.
    Type: Application
    Filed: April 24, 2012
    Publication date: March 5, 2015
    Inventors: Daniel W. Petersen, Ralph L. Slathem, Raymond Ehlers, Eduardo Martin Orue, Arturo Garcia Gómez
  • Patent number: 8966757
    Abstract: Disclosed is a plastic heat exchanger in which, when a heat exchanger tube of the plastic heat exchanger is coupled to a header, the heat exchanger tube and a junction portion of the header are melted and pressed simultaneously through a heat fusion jig including a fusion portion and a fusion valley so as to secure reliability against leakage of refrigerant, and a method of manufacturing the same, by which the plastic heat exchanger can be mass-produced at low fabricating cost through simple processes. The present invention provides a method of fabricating a plastic heat exchanger, comprising a step of melting and pressing a plastic heat exchanger tube and a junction of a header by using a heat fusion jig, and a plastic heat exchanger fabricated by the method, thereby securing reliability against leakage of refrigerant, having heat exchange performance more excellent than or equal to a metallic heat exchanger and also mass-producing the plastic heat exchanger at low fabricating cost through simple processes.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: March 3, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Eon-seok Lee, Ho-geun Ryu, Du-soon Choi, Sang-Hoon Han
  • Patent number: 8966729
    Abstract: In sputter etching to improve the adhesion between upper electrodes and lead electrodes, the sputter etching of surfaces of the upper electrodes under an Ar gas flow at a flow rate of 60 sccm or more can reduce the residence time of Ar ions on the surfaces of the upper electrodes because of the Ar gas flow. This can prevent the charging of the upper electrodes due to the buildup of ionized Ar gas on the surfaces, reduce the influence of charging on piezoelectric elements, and provide a method for manufacturing a piezoelectric actuator that includes the piezoelectric elements each including a piezoelectric layer having small variations in hysteresis characteristics and deformation characteristics.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: March 3, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Hironobu Kazama, Takahiro Kamijo, Masato Shimada, Hiroyuki Kamei, Yuka Yonekura, Motoki Takabe
  • Publication number: 20150052752
    Abstract: Provided is a method for manufacturing a recording head having a head chip that ejects ink, an upstream flow path member, a downstream flow path member where an accommodating portion and a downstream flow path are disposed, a wiring member that is connected to a piezoelectric actuator in the head chip, a wiring substrate, a first insertion hole into which the wiring member and a tool are inserted, and a second insertion hole where a wiring member insertion portion into which the wiring member is inserted and a tool insertion portion into which the tool can be inserted are integrally formed, the method including inserting the tool into the tool insertion portion, holding the wiring member with the tool, withdrawing the tool from the tool insertion portion by moving the downstream flow path member to the head chip side, and inserting the wiring member into the wiring member insertion portion.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 26, 2015
    Inventors: Masayuki SAKAI, Yasuo INAOKA, Minoru YAJIMA
  • Patent number: 8959733
    Abstract: There is provided a method of manufacturing liquid transporting apparatus including: providing a channel unit; providing a piezoelectric actuator having a first and second active portion corresponding to a central portion and an outer periphery portion of the pressure chamber, respectively. The first and second active portions are sandwiched between an upper electrode and an intermediate electrode, and between the upper electrode and a lower electrode, respectively. The method further includes joining the channel unit and the piezoelectric actuator by positioning such that the intermediate electrode overlaps the central portion of the pressure chamber. Accordingly, since it is possible to make the first active portion overlap the central portion of the pressure chamber, it is possible to apply a appropriate pressure to the liquid in the pressure chamber without excessively small deformation of the first active portion.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: February 24, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yasuhiro Sekiguchi, Takamasa Usui
  • Patent number: 8955223
    Abstract: A liquid adhesive is applied onto a surface of a base plate having flow channels formed as recesses or through-grooves, by transferring the liquid adhesive from a rotating cylinder coated with it to the surface of the base plate. The base plate is then bonded to a cover plate having ejection energy generating elements via the applied adhesive to be made into a liquid ejection head. For evenly applying the liquid adhesive onto the surface having the recesses or through-grooves as flow channels, the surface is additionally provided with dummy recesses for compensating for variance of contact length orthogonal to the transfer direction due to uneven or asymmetrical arrangement of the recesses or through-grooves.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: February 17, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Ono, Shimpei Otaka
  • Publication number: 20150040397
    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: Application
    Filed: October 24, 2014
    Publication date: February 12, 2015
    Inventors: Dino Faralli, Michele Palmieri
  • Patent number: 8950072
    Abstract: A method of manufacturing a liquid ejection head, which includes: preparing a liquid ejection head which includes: a recording element board provided with an ejection port through which liquid is ejected and an energy generator; an electrical wiring member provided with an opening from which the recording element board is exposed; and plural electrical connecting portions for electrically connecting the recording element board and the electrical wiring member relatively moving a discharge member, which is for dropping a sealing agent, toward one end of an arrangement of the electrical connecting portions while dropping the sealing agent onto the electrical wiring member and inside the opening; and relatively moving the discharge member from the one end of the electrical connecting portions to the other end while dropping the sealing agent to seal the electrical connecting portion.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: February 10, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiaki Kaneko, Satoshi Kodama, Hirotaka Miyazaki, Satoshi Shimazu, Naoya Tsukamoto
  • Patent number: 8943690
    Abstract: When protective portions are independently provided for each energy generation element, a leakage current inspection between the protective portions and the energy generation elements cannot be performed at once. Therefore, there is a concern that the inspection in manufacturing a substrate for liquid ejection head requires time. Therefore, the substrate for liquid ejection head is manufactured by performing a leakage current inspection between a connecting portion that is electrically connected to plurality of protective portions and a terminal to which the plurality of energy generation elements are connected, and thereafter removing the connecting portion.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: February 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuzuru Ishida, Takuya Hatsui, Kazuaki Shibata, Takeru Yasuda, Ryoji Oohashi, Yoshiyuki Imanaka, Koichi Omata, Hideo Tamura, Kousuke Kubo, Yuji Tamaru
  • Publication number: 20150022590
    Abstract: A liquid ejection head includes a substrate, an energy-generating element provided on a front surface side of the substrate, the energy-generating element generating energy for ejecting liquid, sidewall members of a liquid flow path, and an ejection port forming member that defines an ejection port from which the liquid is ejected. In the liquid ejection head, sidewalls of the liquid flow path are formed of the sidewall members and a top wall of the liquid flow path is formed of the ejection port forming member, the sidewall members are each formed of a core member that extends from a front surface of the substrate and a covering member that covers the surface of the core member, the covering member covers the front surface of the substrate, and the ejection port forming member is formed of an inorganic material.
    Type: Application
    Filed: July 14, 2014
    Publication date: January 22, 2015
    Inventors: Hiroshi Higuchi, Makoto Terui, Masaya Uyama
  • Patent number: 8931164
    Abstract: A method of making and using a printer comprising a duplexing unit that pivots along a horizontal plane for media path access. The duplexing unit does not contain any motor driven rollers for moving a media sheet therethrough. The duplexing unit's vertical axis hinge allows the duplexing unit to swing open and closed horizontally.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: January 13, 2015
    Assignee: Eastman Kodak Company
    Inventors: Siew Pern Chuang, Richard A. Murray, Venkatesh Mysore Nagaraja Rao, Keng Leong Ng
  • Publication number: 20150002583
    Abstract: A liquid ejection head is provided with a recording element substrate having a plurality of ejection orifices for ejecting a liquid, the plurality of ejection orifices being arranged to form a row of the ejection orifices. In at least some of the plurality of the ejection orifices, the area of an inner wall of the ejection orifices is set to be larger on the other side than on one side, the other side and the one side being defined by a plane which passes through the center of the ejection orifice, intersects with the row of the ejection orifices at right angles and extends along the direction of the depth of the ejection orifice.
    Type: Application
    Filed: June 20, 2014
    Publication date: January 1, 2015
    Inventors: Masataka Nagai, Yoshinori Tagawa, Toshiaki Kurosu, Hiroyuki Murayama, Makoto Watanabe, Takanobu Manabe
  • Publication number: 20150001316
    Abstract: In an embodiment, a method of forming a printhead includes forming on a front-side surface of a substrate, a thin film layer and a plurality of fluidic channels and ejection chambers. The method also includes forming a slot through the substrate from the back-side surface to the front-side surface, where the back-side and front-side surfaces generally oppose one another. The slot has a length extending along a long axis of the substrate and a width extending along a short axis of the substrate. The method includes forming recessed regions into the back-side surface of the substrate at both ends of the slot that extend beyond the length of the slot.
    Type: Application
    Filed: March 16, 2012
    Publication date: January 1, 2015
    Inventors: Rio Rivas, Ed Friesen, Terry McMahon, Donald W. Schulte, David Douglas Hall
  • Publication number: 20140375712
    Abstract: A control device of controlling a liquid droplet ejection head includes a head substrate; a head controller applying a drive voltage to the head substrate to control the ejection of liquid droplets; a relay substrate connecting the head substrate and the head controller; a main-body controller controlling the head controller; and a voltage conversion circuit disposed in the relay substrate. Further, the voltage conversion circuit converts a resistance value in accordance with a temperature of the head substrate into an output voltage, the relay substrate inputs the output voltage into the main-body controller, and the main-body controller detects the temperature based on the output voltage and determines the drive voltage based on the detected temperature.
    Type: Application
    Filed: June 23, 2014
    Publication date: December 25, 2014
    Applicant: RICOH COMPANY, LTD.
    Inventor: Masami Iwama
  • Publication number: 20140368579
    Abstract: A liquid ejection head chip includes a liquid ejection unit having a plurality of ejection orifices for ejecting a liquid, a flow path in communication with the ejection orifices, and an energy generating element that generates energy for ejecting the liquid, the liquid ejection unit being provided on an upper surface formed of a (100) surface of a silicon single-crystal substrate. The side surfaces in at least one of two combinations of opposing side surfaces of the substrate have (111) surfaces of silicon single crystal and the angles of the (111) surfaces relative to the (100) surface are supplementary to each other.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 18, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshiaki Kurosu, Hiroto Komiyama, Jun Yamamuro, Yoshinori Tagawa, Takanobu Manabe
  • Patent number: 8910380
    Abstract: Described is a process for producing an inkjet printhead comprising an aperture face having an oleophobic surface. The process includes forming an aperture plate by disposing a silicon layer on an aperture plate; using photolithography to create a textured pattern on an outer surface of the silicon layer; and chemically modifying the textured surface by disposing a conformal, oleophobic coating on the textured surface. The oleophobic aperture plate may be used as a front face surface for an inkjet printhead.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: December 16, 2014
    Assignee: Xerox Corporation
    Inventors: Kock-Yee Law, Hong Zhao
  • Publication number: 20140362146
    Abstract: The present disclosure describes a compound slot, and systems and methods of forming the compound slot. An example of a compound slot includes a wafer, where the compound slot includes a trench along a long axis of the compound slot and on a top surface of the wafer, where the trench passes through an initial portion of a total depth of the wafer. A number of openings pass through a remaining portion of the total depth of the wafer, where at least a retained portion of a bottom of the trench is present around a perimeter of each of the number of openings.
    Type: Application
    Filed: April 27, 2012
    Publication date: December 11, 2014
    Applicant: Hewlett-Packard Development Company, LP.
    Inventors: Ning Ge, Bee Ling Peh, Trudy Benjamin, Ken Kiat Ng, Jianhui Gu
  • Publication number: 20140360595
    Abstract: A print element substrate is absorbed and held by a handling jig to define a predetermined location and position of the print element substrate with respect to the supporting member. In this instance, the handling jig is provided with a convex portion. Therefore, when the print element substrate is joined to the supporting member, the convex portion comes into contact with a surface of the supporting member, so that it is possible to define the height of the print element substrate with respect to the joining surface. This makes it possible to control the amount and height of squash by the print element substrate exerted on the adhesive agent applied on the joining surface. It is possible to prevent the redundant adhesive agent from spilling out in a print liquid flow path.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 11, 2014
    Inventor: Tatsunori Fujii
  • Patent number: 8904639
    Abstract: Disclosed is a method of including the steps of preparing a substrate having a flow-path-wall member; bonding the flow-path-wall member to a resin layer that is composed of a photo-curing resin and serves as the ejection port member such that spaces serving as the flow paths are provided between the substrate and the photo-curing resin; providing through-holes in the resin layer such that the spaces communicate with the outside air; exposing part of the resin layer to light to form an exposed portion and an unexposed portion; heating the exposed portion of the resin layer; and removing the unexposed portion from the heated resin layer to form the ejection ports, removing the unexposed portion from the heated resin layer to form the ejection ports, thereby forming the ejection port member.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: December 9, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keiji Matsumoto, Shuji Koyama, Sakai Yokoyama, Kenji Fujii, Jun Yamamuro
  • Patent number: 8904640
    Abstract: A method of making an ink cartridge by forming an ink chamber, an air accumulation chamber, and a cap including a vent hole is disclosed. The cap is affixed at a first end of the air accumulation chamber and a one way valve is disposed at the vent hole for preventing gas from entering the air accumulation chamber through the vent hole when a pressure in the air accumulation chamber is less than a cracking pressure of the one-way valve. A neck region narrower than the ink chamber and the air accumulation chamber is formed for fluidically connecting the ink chamber and the air accumulation chamber. A mass is placed within the air accumulation chamber, the mass having a dimension smaller than an interior dimension of the air accumulation chamber such that the mass is movable between the first end and a second end of the air accumulation chamber.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: December 9, 2014
    Assignee: Eastman Kodak Company
    Inventor: Richard A. Murray
  • Patent number: 8898902
    Abstract: A printing apparatus includes: a flow channel plate including, a pressure chamber, a nozzle including an outlet through which ink contained in the pressure chamber is ejected, and a trench disposed around the nozzle, and the outlet extending into the trench; a piezoelectric actuator configured to provide a change in pressure to eject the ink contained in the pressure chamber; and an electrostatic actuator configured to provide an electrostatic driving force to the ink contained in the nozzle.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: December 2, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-ki Hong, Sung-gyu Kang, Jae-woo Chung, Seung-ho Lee, Joong-hyuk Kim, Yong-wan Jin
  • Patent number: 8893385
    Abstract: A method of making a liquid supply member includes preparing a transparent member including a first surface having a first opening portion and an absorption member including a second surface having a second opening portion, making the transparent member and the absorption member contact each other at a contact portion so that the first opening portion and the second opening portion overlap each other with respect to an intersecting direction that intersects the first surface and the second surface, and forming a first supply path by welding the transparent member and the absorption member to each other by irradiating the contact portion with a laser beam, the first supply path including the first opening portion and the second opening portion and being a path through which liquid flows in the intersecting direction, wherein a space is formed between the contact portion and the first supply path and between the first surface and the second surface.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: November 25, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoko Tsujiuchi, Osamu Morita
  • Patent number: 8887393
    Abstract: A method of fabricating a mounting substrate forming an ink inlet in a first layer of a first dielectric; forming contact pads on a second layer of a second dielectric; forming a slot through the second layer; forming a window through a third layer of a third dielectric; aligning and laminating the second layer to the first layer such that the ink inlet is aligned with the slot; and aligning and laminating the third layer to the second layer so the contact pads and the slot are exposed through the window; providing a printhead die having: a drop mechanism for ejecting drops; a chamber to contain ink; and adhesively bonding the printhead die to the second layer so that the printhead die is disposed within the window and an inlet feed opening of the printhead die is aligned with the slot through the second layer.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: November 18, 2014
    Assignee: Eastman Kodak Company
    Inventors: Mario Joseph Ciminelli, Dwight John Petruchik
  • Publication number: 20140331677
    Abstract: A gas turbine engine outer premix barrel is disclosed. The outer premix barrel includes a body portion, a barrel portion, and a plurality of vanes. The body portion includes vent air inlets. The barrel portion extends axially aft from the body portion. The plurality of vanes extends axially forward from the body portion. Each vane includes an inward surface located at a radially inner end of the vane, and a plurality of vent passages exiting the vane at the inward surface. Each vent passage is in flow communication with at least one vent air inlet.
    Type: Application
    Filed: May 13, 2013
    Publication date: November 13, 2014
    Applicant: Solar Turbines Incorporated
    Inventors: Donald James Cramb, James Scott Piper, Sean Kelly Spivey, Michael John Ramotowski, Matthew Mayer
  • Publication number: 20140333692
    Abstract: There is provided a liquid ejection head that can reduce trouble in alignment of a print element substrate even in the case where a high magnification optical system is used and a method for fabricating the liquid ejection head. To achieve this, an auxiliary mark that indicates a relative position with respect to a reference mark is detected and recognized, and thus the position of the reference mark is identified even in the case where the reference mark is not reflected in a camera.
    Type: Application
    Filed: April 23, 2014
    Publication date: November 13, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Masao FURUKAWA
  • Patent number: 8881399
    Abstract: A manufacturing method of nozzle plate for liquid ejection head includes, providing a substrate having a first base material of Si and a second base material, of which the etching rate in Si anisotropic dry etching is lower then that of Si, provided on one side of the first base material, forming a film as a second etching mask on the surface of the second base material, forming a second etching mask pattern having a small-diameter opening shape in the second etching mask film, etching until the etching part is extended through the second base material, forming a film as a first etching mask film on the surface of the first base material, forming a first etching mask pattern having a large-diameter opening shape in the first etching mask film, and Si anisotropic dry etching until the etched part is extended through the first base material.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: November 11, 2014
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Atsuro Yanata, Isao Doi
  • Patent number: 8869401
    Abstract: A liquid ejection head or microstructure manufacturing method includes providing a substrate with an organic resin material layer for forming a flow passage wall member, and forming a flow path and ejection outlet by partly removing the organic resin material layer by illumination with a laser beam having a pulse width between 2 and 20 picosecs and having a focal point inside the organic resin material layer, with movement of the focal point of the laser beam. The ejection outlet is formed by exposure of the organic resin material to the laser beam condensed by a first lens having a numerical aperture of not less than 0.3, and the liquid flow path is formed by exposure of the organic resin material to the laser beam condensed by a second lens having a numerical aperture which is larger than that of the first lens and which is not less than 0.5.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: October 28, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiko Kubota, Satoshi Kokubo
  • Patent number: 8869400
    Abstract: A nozzle plate includes: a flow channel opening in a first surface of the nozzle plate; a liquid chamber communicating with the flow channel; and a nozzle hole communicating with the liquid chamber and opening in a second surface of the nozzle plate. The liquid chamber has a flat portion which is substantially parallel to the second surface. The nozzle hole communicates with the liquid chamber in the flat portion. A method for producing a nozzle plate includes: forming a liquid chamber which opens in a first surface of a plate-like body; forming a flat portion in a bottom of the liquid chamber; and forming a nozzle hole which communicates with the flat portion and opens in a second surface of the plate-like body.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: October 28, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Masahiro Uekita
  • Publication number: 20140313264
    Abstract: A method for manufacturing a fluid ejection device, comprising the steps of: providing a first semiconductor body having a membrane layer and a piezoelectric actuator which extends over the membrane layer; forming a cavity underneath the membrane layer to form a suspended membrane; providing a second semiconductor body; making, in the second semiconductor body, an inlet through hole configured to form a supply channel of the fluid ejection device; providing a third semiconductor body; forming a recess in the third semiconductor body; forming an outlet channel through the third semiconductor body to form an ejection nozzle of the fluid ejection device; coupling the first semiconductor body with the third semiconductor body and the first semiconductor body with the second semiconductor body in such a way that the piezoelectric actuator is completely housed in the first recess, and the second recess forms an internal chamber of the fluid ejection device.
    Type: Application
    Filed: April 15, 2014
    Publication date: October 23, 2014
    Applicant: STMicroelectronics S.r.l.
    Inventors: Mauro Cattaneo, Roberto Campedelli, Igor Varisco
  • Publication number: 20140313263
    Abstract: An ink jetprinting device includes a pressure chamber formed by a plurality of wall segments, a first aperture extending through a wall segment and communicating with an ink jet orifice and a second aperture extending through a wall segment and communicating with an ink supply duct. The pressure chamber is arranged to contain an ink composition including a carrier composition and a composition including at least one functional component. The plurality of wall segments are at least partly coated with a coating layer of a coating compound having a stronger interaction with at least one component of the carrier composition relative to the composition including the at least one functional component. A method for manufacturing such an ink-jet printing device is disclosed.
    Type: Application
    Filed: June 27, 2014
    Publication date: October 23, 2014
    Inventors: Marcus J. VAN DEN BERG, Peter R. MARKIES, Johannes T. ZUILHOF
  • Patent number: 8863388
    Abstract: A method for adhesive stacking includes dispensing a first line of adhesive onto a first substrate; dispensing at least one additional line of adhesive stacked onto the first line of adhesive; and placing a second substrate onto the at least one additional line of adhesive to join the first and second substrates.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: October 21, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Chris Aschoff, Anthony J. Galvan, Henry Kang, Kelly B. Smith, Lawrence Thurber
  • Publication number: 20140304990
    Abstract: An integrated semiconductor heating assembly includes a semiconductor substrate, a chamber formed therein, and an exit port in fluid communication with the chamber, allowing fluid to exit the chamber in response to heating the chamber. The integrated heating assembly includes a first heating element adjacent the chamber, which can generate heat above a selected threshold and bias fluid in the chamber toward the exit port. A second heating element is positioned adjacent the exit port to generate heat above a selected threshold, facilitating movement of the fluid through the exit port away from the chamber. Addition of the second heating element reduces the amount of heat emitted per heating element and minimizes thickness of a heat absorption material toward an open end of the exit port. Since such material is expensive, this reduces the manufacturing cost and retail price of the assembly while improving efficiency and longevity thereof.
    Type: Application
    Filed: June 26, 2014
    Publication date: October 16, 2014
    Inventors: Ming Fang, Fuchao Wang
  • Patent number: 8857020
    Abstract: A method of forming an actuator includes depositing a photoimageable material to form a first photoimageable layer on a piezoelectric layer; patterning the first photoimageable layer to form an aperture; and disposing a first conductive layer on the first photoimageable layer. An actuator device formed by this method includes the photoimageable material. The first conductive layer partially overlies the first photoimageable layer such that a first portion of the first conductive layer contacts the first photoimageable layer and a second portion of the first conductive layer electrically contacts the piezoelectric layer in the aperture.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: October 14, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Jeffrey Birkmeyer, Darren T. Imai, Andreas Bibl, Zhenfang Chen
  • Patent number: 8857021
    Abstract: An ink jet print head can be formed using a laser to melt a plating layer interposed between a piezoelectric actuator and a circuit layer bump. The plating layer can be formed on the circuit layer bump, the piezoelectric actuator, or both, and a laser beam output by the laser is used to melt the plating layer to provide a laser weld. In another embodiment, the circuit layer bump or the trace itself functions as the plating layer, which is melted using a laser to provide the laser weld.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: October 14, 2014
    Assignee: Xerox Corporation
    Inventors: Bradley James Gerner, Peter J. Nystrom, Bryan R. Dolan
  • Patent number: 8858812
    Abstract: Provided is a processing method for an ink jet head substrate, including: forming a barrier layer on a substrate and forming a seed layer on the barrier layer; forming a resist film on the seed layer and patterning the resist film so that the patterned resist film corresponds to a pad portion for electrically connecting an ink jet head to an outside of the ink jet head; forming the pad portion in an opening of the patterned resist film; removing the resist film; subjecting the substrate to anisotropic etching to form an ink supply port; removing the barrier layer and the seed layer; and performing laser processing from a surface of the substrate.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: October 14, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenta Furusawa, Keiji Matsumoto, Keisuke Kishimoto, Kazuhiro Asai, Shuji Koyama
  • Publication number: 20140300668
    Abstract: An inkjet printhead includes an oleophobic membrane arranged at a location that allows the oleophobic membrane to simultaneously vent air from an ink flow channel of the printhead and to retain ink within the ink flow channel. The oleophobic membrane includes a metal structure having a nanostructured surface and low-surface energy coating disposed on the metal structure.
    Type: Application
    Filed: April 3, 2013
    Publication date: October 9, 2014
    Inventor: Palo Alto Research Center Incorporated
  • Publication number: 20140300666
    Abstract: An ink jet printer subassembly comprises an ink flow channel that includes an oleophobic membrane configured to contain ink in the ink flow channel while allowing air to vent out of the ink flow channel through the oleophobic membrane.
    Type: Application
    Filed: April 3, 2013
    Publication date: October 9, 2014
    Inventors: David Matthew Johnson, Norine Chang, Eric J. Shrader, John S. Paschkewitz
  • Patent number: 8850691
    Abstract: A manufacturing method for a heating resistor element includes a concave portion forming step, a bonding step and a resistor forming step. The concave portion forming step includes forming a concave portion on at least one of bonded surfaces between an insulating substrate and a heat accumulating layer. The bonding step causes the bonded surfaces between the insulating substrate and the heat accumulating layer to adhere to each other to bond the insulating substrate and the heat accumulating layer. The resistor forming step includes forming a heating resistor at a position on the heat accumulating layer. The position is opposed to the concave portion. The concave portion forming step further includes processing an inner surface of the concave portion on a side of the insulating substrate to have surface roughness Ra of 0.2 ?m or more.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: October 7, 2014
    Assignee: Seiko Instruments Inc.
    Inventors: Keitaro Koroishi, Toshimitsu Morooka, Noriyoshi Shoji, Yoshinori Sato, Norimitsu Sanbongi