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| Number | Title | Issue Date |
| 8109614 | Process for protectively coating hydraulic microcircuits against aggressive liquids, particulary for an ink jet printhead An ink jet printhead, made of a silicon substrate and a plurality of metallic and dielectric layers deposited on said substrate. A plurality of chambers for ejection of ink droplets and a plurality of corresponding feeding ducts, connected to the chambers, are produ... | 02/07/2012 |
| 8096644 | Liquid ejection head and liquid ejection method A print head, which ejects ink by using a method whereby a bubble generated by a heat generating element communicates with the air, and for which the occurrence of cavitation is deterred and the durability is improved, is provided. According to the print head, a bub... | 01/17/2012 |
| 8091988 | Cavity plate Among other things, a cavity plate for use in ink jetting includes an outlet end. Elongated lands extend from the outlet end toward an inlet end of the cavity plate. The elongated lands have side walls between top and bottom surfaces of the cavity plate to form elon... | 01/10/2012 |
| 8091987 | Ink jet print head with improved reliability An ink jet print head is provided having an ink chamber and a nozzle plate closing the ink chamber at an end comprising a nozzle for ejecting a drop of ink through it. The nozzle plate further includes an ink path for flowing an ink through in a direction parallel w... | 01/10/2012 |
| 8087758 | Liquid droplet ejecting head and liquid droplet ejecting apparatus A liquid droplet ejecting head that drives pressure generating portions disposed in pressure chambers inside ejectors to thereby pressurize liquid inside the pressure chambers and cause liquid droplets to be ejected from nozzles communicated with the pressure chambe... | 01/03/2012 |
| 8087759 | Print head with offset ejection ports The impact accuracy of ejected droplets, the quality of printed images, and print speed can be improved in a print head having an ink channel for which the width thereof in a direction orthogonal to an ink supply direction in which ink is supplied from an ink supply... | 01/03/2012 |
| 8083325 | Liquid ejection recording head having element substrate with plural supply ports A liquid ejection recording head includes an element substrate having plural ejection energy generating elements, an ejection outlet array of plural ejection outlets, and bubble generation chambers. The element substrate includes a first liquid supply port provided ... | 12/27/2011 |
| 8083326 | Nozzle arrangement with an actuator having iris vanes A nozzle arrangement for an inkjet printhead includes a substrate defining an ink inlet; a plurality of posts extending from the substrate; a roof portion defining an ejection port, the roof portion supported by the plurality of posts; a plurality of vanes extending... | 12/27/2011 |
| 8079673 | Droplet discharging head, liquid cartridge, droplet discharging device, and image formation apparatus, configured with additional flow path connecting commom liquid chamber and liquid flow paths A disclosed droplet discharging head includes: a common liquid chamber; a plurality of liquid flow paths branching from the common liquid chamber; a nozzle communicating with the liquid flow path; an actuator substrate having a heater disposed in the vicinity of the... | 12/20/2011 |
| 8079674 | Ink jet recording apparatus An ink jet recording head includes a recording element substrate provided on one side thereof with a plurality of ejection outlet arrays each including a plurality of ejection outlets for ejecting recording liquid and provided on the other side thereof with a plural... | 12/20/2011 |
| 8079675 | Ink jet recording head and manufacturing method of ink jet recording head An ink jet recording head includes a substrate provided with an energy generating element to generate energy used for discharging ink, a discharge port through which the ink is discharged, a supply port for supplying the ink, and an ink path formed on the substrate ... | 12/20/2011 |
| 8070266 | Printhead assembly with ink supply to nozzles through polymer sealing film An inkjet printhead assembly with a printhead integrated circuit formed on a wafer substrate, the printhead integrated circuit having an array of ink ejection nozzles, the array having a first section with nozzles for ejecting ink of a first color, and a second sect... | 12/06/2011 |
| 8066356 | Thermal inkjet print head A thermal inkjet printhead is provided including a substrate, and a chamber layer, which is stacked on the substrate. The chamber layer includes an ink chamber that is filled with ink supplied from an ink feed hole. The printhead includes a heater inside the ink cha... | 11/29/2011 |
| 8061819 | Liquid ejecting method, liquid ejecting head, and liquid ejecting apparatus Provided is a liquid ejecting method, comprising ejecting a liquid from a liquid ejecting head, wherein: the viscosity of the liquid is in a range from 6 mPa·s to 15 mPa·s, the liquid ejecting head includes: nozzles which eject the liquid; a pressure chamber which... | 11/22/2011 |
| 8061817 | Droplet jet unit and droplet jet device An ink-jet head (1) jets supplied liquid through plural nozzles (14). The ink-jet head (1) includes a liquid introduction port (23A), a liquid discharge port (23B), a common liquid chamber, and plural individual liquid chambers. Th... | 11/22/2011 |
| 8061816 | Printhead assembly having a laminate stack to direct ink centrally A printhead assembly for a pagewidth inkjet printer. An elongate ink distribution assembly has at least one ink duct. An ink distribution laminate stack is attached to the elongate ink distribution assembly, the laminate stack including a plurality of layers each pr... | 11/22/2011 |
| 8061818 | Ink jet recording head An ink jet recording head includes ejection energy generating elements for ejecting ink, flow passages for supplying the ink from an ink supply port to the ejection energy generating elements through a common liquid chamber, a partition wall formed between adjacent ... | 11/22/2011 |
| 8057017 | Ink jet recording head with ink supply ports having a cross-section with varying width A manufacturing method for a substrate for an ink jet head, including formation of an ink supply port in a silicon substrate, the method includes a step of forming, on one side of the substrate, an etching mask layer having an opening at a position corresponding ink... | 11/15/2011 |
| 8052251 | Ink jet recording head An ink jet recording head includes an element substrate; a plurality of ejection outlets, provided on the element substrate, for ejecting ink in a direction perpendicular to the element substrate; and a nozzle formation member having a plurality of ink flow paths wh... | 11/08/2011 |
| 8033651 | Liquid ejection head and printing apparatus A reliable print head with improved reliability is less likely to be damaged by possible cavitation in ink inside a bubbling chamber. A plurality of ink supply paths through which the ink is supplied to the bubbling chamber are connected to the bubbling chamber. Com... | 10/11/2011 |
| 8033652 | Liquid discharge head and recording apparatus having the same A liquid discharge head includes a discharge port array having discharge ports for discharging liquid, a liquid chamber for supplying liquid to the discharge port array, and a liquid introduction passage for introducing liquid to the liquid chamber. A vertical cross... | 10/11/2011 |
| 8016390 | Liquid discharging head and inkjet head A liquid discharging head includes a flow path unit having a common liquid flow path; an individual liquid flow path; and a plurality of plates that are stacked to form the common liquid flow path and the individual liquid flow path. The plurality of plates includes... | 09/13/2011 |
| 8016391 | Inkjet recording head and inkjet recording device The present invention provides an inkjet recording head and inkjet recording device which can eject a high viscosity ink at ordinary temperature. The inkjet recording head has a nozzle portion ejecting an ink drop; an ink flow path member including the nozzle portio... | 09/13/2011 |
| 8007078 | Microfluidic device and a fluid ejection device incorporating the same A microfluidic device includes first and second substrates bonded together. The first substrate has first and second opposed surfaces. A die pocket is formed in the first opposed surface, and a through slot extends from the die pocket to the second opposed surface. ... | 08/30/2011 |
| 7997691 | Ink jet print head An ink jet print head is provided which is highly reliable in recovering its performance by removing bubbles accumulated in the ink paths to reliably prevent print quality degradation in bi-directional printing. In the ink ejection member having an odd number of arr... | 08/16/2011 |
| 7997690 | Inkjet printer An inkjet printer including: a printhead having a plurality of nozzles assemblies, each nozzle assembly having: a nozzle chamber for containing ink, the chamber having a nozzle opening and an ink inlet; and a bend actuator for ejecting ink droplets from the nozzle o... | 08/16/2011 |
| 7997689 | Droplet ejection device for a highly viscous liquid A droplet ejection device for a highly viscous liquid includes a micro flow channel filled with a highly viscous liquid and having an inlet and an outlet channel; at least a branch channel communicated with the outlet channel; a highly-viscous-liquid supply device c... | 08/16/2011 |
| 7984976 | Liquid recording head A liquid recording head includes an element substrate on which ejection energy generating elements for generating energy for ejecting droplets of liquid are provided in a staggered arrangement, ejection outlets provided opposed to the ejection energy generating elem... | 07/26/2011 |
| 7980676 | Liquid ejection head including member supporting liquid ejection substrate A liquid ejection head is constituted by a liquid ejection substrate comprising a liquid supply port for supplying liquid, an ejection outlet for ejecting the liquid supplied from the liquid supply port, and ejection energy generating devices for generating energy f... | 07/19/2011 |
| 7980678 | Ink jet recording head An ink jet recording head includes a substrate including a discharge port forming member provided with discharge ports for discharging ink, and a flow path forming member for forming an ink flow path communicating with the discharge ports, wherein at least one of th... | 07/19/2011 |
| 7980675 | Ink jet head An ink jet head includes a substrate having an ink supply port, an ejection outlet for ejecting ink supplied through the supply port, and a flow path portion which provides fluid communication between the supply port and the ejection outlet. The flow path portion in... | 07/19/2011 |
| 7980677 | Ink jet recording head An ink jet recording head includes recording element substrates each including at least one nozzle array and heat generating resistors, a common liquid chamber having introducing and discharging ports, and a supporting member mounting the recording element substrate... | 07/19/2011 |
| 7963636 | Liquid ejection head A liquid ejecting head is constituted by a substrate to which elements for generating energy utilized for ejecting liquid and a supply port for supplying the liquid to be ejected are provided; a plurality of ejection outlets, for ejecting the liquid, provided corres... | 06/21/2011 |
| 7959264 | Print head having extended surface elements Embodiments include forming internal or external extended surface elements on a print-head substrate, at least in part, using a light beam. ... | 06/14/2011 |
| 7954930 | Liquid droplet ejecting head and liquid droplet ejecting apparatus A liquid droplet ejecting head according to an aspect of the present invention includes a liquid droplet ejecting element for ejecting liquid droplets a liquid supply path having two or more flow ports, through which a liquid can flow, and supplying the liquid flowi... | 06/07/2011 |
| 7950780 | Liquid jet head and image forming apparatus configured to obtain air bubble discharging properties A liquid jet head includes a plurality of individual flow paths where nozzles configured to jet liquid are in communication; wherein a layer of an adhesive is formed on a side wall surface of the individual flow path; and the layer of the adhesive contains a materia... | 05/31/2011 |
| 7946688 | Recording head and recording apparatus A recording head includes a recording element substrate having a discharge port facilitating discharging a liquid droplet, an energy generating element configured to generate energy for liquid discharge, and a supply opening facilitating supplying the discharge port... | 05/24/2011 |
| 7938513 | Heater chips with silicon die bonded on silicon substrate and methods of fabricating the heater chips A heater chip has a substrate and at least one die, made of silicon, and a bond non-adhesively attaching them. The substrate, thick enough to resist bowing, has ink supply vias from back to front surfaces. The die has ink flow vias from back to front surfaces and ci... | 05/10/2011 |
| 7938512 | Methods and systems for laser processing The described embodiments relate to slotted substrates. One exemplary method forms a feature into a substrate, at least in part, by directing a laser beam at the substrate. During at least a portion of said directing, the method supplies a conductive material proxim... | 05/10/2011 |
| 7938514 | Printing nozzle having fault sensor A printing nozzle is provided having a chamber defined over a fluid inlet in a substrate and having a fluid ejection port, an actuator for causing ejection of fluid within the chamber from the fluid ejection port, a controller for controlling operation of the actuat... | 05/10/2011 |
