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| Number | Title | Issue Date |
| 8109613 | Ink supplying method An ink supplying mechanism includes a circulating system that connects an ink jet head having a nozzle, a pressure chamber opposed to the nozzle, and an upstream port and a downstream port that communicate with the pressure chamber, an upstream side tank that commun... | 02/07/2012 |
| 7950778 | Printer having referencing for removable printhead A printer is provided having a slot for removably receiving a printhead having a plurality of fluid ejection nozzles, and protrusions arranged in the slot to cooperate with a flat surface of a plurality of corners of the printhead upon mounting of the printhead to t... | 05/31/2011 |
| 7922297 | Ink ejection device including a silicon chip having a heater stack positioned over a corresponding power transistor A silicon chip has a plurality of ink jetting structures. Each ink jetting structure of the plurality of ink jetting structures includes a heater stack having an electrical heater element. A power transistor is electrically connected to the electrical heater element... | 04/12/2011 |
| 7896475 | Element substrate, printhead, and head cartridge A small-size element substrate with high electrical efficiency can be achieved when a plurality of printing element arrays having the same discharge amount exist on a single element substrate, and transistors which form driver arrays corresponding to the respective ... | 03/01/2011 |
| 7874645 | Modular printhead assembly with serially mounted printhead modules A printhead assembly has an elongate casing. A plurality of printhead modules is mounted serially on the casing. Each printhead module has a fluid channel member defining a number of channels extending along a longitudinal axis of the casing. A printhead tile define... | 01/25/2011 |
| 7832843 | Liquid jet head A liquid ejecting head includes plural ejection outlets for ejecting droplets; liquid flow paths in fluid communication with the ejection outlets; and a liquid supply opening for supplying the liquid to the liquid flow paths. The ejection outlets include first and s... | 11/16/2010 |
| 7819505 | Print system for a pagewidth printer for expanding and printing compressed images This invention provides for a print system for a pagewidth printer. The print system includes a central processing unit (CPU) subsystem having a CPU with a plurality of peripherals configured to interface said print system with the printer and to control operation o... | 10/26/2010 |
| 7802872 | Ink jet printhead and its manufacturing process Ink jet printhead comprising one or more ejection module, each with a silicon chip, a plurality of ejector nozzles arranged adjacent to a front of the module, ejection cells for the nozzles and delivery channels for the ink of the cells. The module or modules each i... | 09/28/2010 |
| 7784914 | Fluid ejection device A method of manufacturing a fluid ejection device. A plurality of drive transistors is disposed on a substrate, the drive transistors each comprising contacts. A metal layer is disposed over the contacts. The plurality of drive transistors includes a primitive group... | 08/31/2010 |
| 7766458 | Inkjet head capable of suppressing hindrance of deformation of a piezoelectric element An inkjet head includes an ink passage unit, an actuator unit; a printed circuit board; a metallic bond for electrically connecting a land to a terminal, the metallic bond being disposed in at least one of a region between the land and the terminal and a region exte... | 08/03/2010 |
| 7758169 | Printheads and printhead cartridges using a printhead An electrical device includes an interconnect and a pair substrates at least one of which includes an integrated circuit, the pair of substrates being bonded together by a bond that includes a structure having multiple widths and a composition that is selected from ... | 07/20/2010 |
| 7686428 | Liquid discharge head A liquid discharge head includes a substrate having a discharge port, a plurality of energy generating elements disposed on a first surface of the substrate for generating energy to discharge liquid from the discharge port, a liquid supply port, and a member provide... | 03/30/2010 |
| 7673973 | Micro-fluid ejecting device having embedded memory devices A micro-fluid ejecting device includes a semiconductor substrate, a plurality of fluid ejection elements formed on the semiconductor substrate, and a plurality of nonvolatile programmable memory devices for storing information related to the operation of the micro-f... | 03/09/2010 |
| 7669978 | Inkjet printhead packaging tape for sealing nozzles An inkjet printhead has a body and a heater chip attached thereto. A nozzle plate on the heater chip includes a periphery and plurality of nozzle holes. An encapsulant bead lines the periphery of the nozzle plate and has a leading edge extending in a direction away ... | 03/02/2010 |
| 7618126 | Printer having self-reference mounted printing cartridge A printer is provided with a body having a slot for removably receiving a printing cartridge and protrusions arranged in the slot to cooperate with a flat surface of a plurality of corners of the printing cartridge upon mounting of the printing cartridge to the prin... | 11/17/2009 |
| 7581821 | Head substrate, printhead, head cartridge, and printing apparatus An object of this invention is to provide a head substrate having a fuse ROM without increasing the size. To achieve the object, a head substrate includes an ink supply port which has a long hole shape elongated in a first direction, a plurality of printing elements... | 09/01/2009 |
| 7559629 | Methods and apparatuses for implementing multi-via heater chips A heater chip for use in a printing device that includes a first heater array with a left side and a right side and a first ink via placed on the left side of the first heater array. The chip also includes a second heater array with a left side and a right side, whe... | 07/14/2009 |
| 7543917 | Integrated circuit and method for manufacturing A method of forming a semiconductor device, the method including forming a substrate including a first surface having a non-doped region, forming an insulative material over the first surface of the substrate, forming a first conductive material over the first insul... | 06/09/2009 |
| 7537317 | Printhead assembly with end-to-end printhead integrated circuit carriers A printhead assembly includes an elongate support structure. A series of side wall sections extend a length of the support structure and define ink supply channels. Edges of the walls delineate a gap. A plurality of carriers is positioned end-to-end in the gap and i... | 05/26/2009 |
| 7530672 | Printhead substrate, printhead, temperature control method of printhead, and printing apparatus This invention provides simpler, low-cost printhead temperature adjustment means without complicating the driver arrangement of a printhead substrate. In a printing apparatus to which this invention is applied, when printing by alternately driving two printheads hav... | 05/12/2009 |
| 7470002 | Printer having self-reference mounted printhead A inkjet printer having: a body configured to receive a printhead assembly of at least one printhead integrated circuit having a plurality of ink ejection nozzles and an ink distribution support mounting the, or each, printhead integrated circuit, and arranged, in u... | 12/30/2008 |
| 7465033 | Self-referencing printhead assembly A printhead assembly having: at least one printhead integrated circuit having a plurality of ink ejection nozzles; and an ink distribution support mounting the, or each, printhead integrated circuit, the ink distribution support being arranged, in use, to distribute... | 12/16/2008 |
| 7448730 | Printhead, printhead substrate, ink cartridge, and printing apparatus having printhead A printhead includes a plurality of switching elements which are arranged in correspondence with respective printing elements and control energization to the respective printing elements, a reference voltage circuit which generates a reference voltage, a current gen... | 11/11/2008 |
| 7441877 | Substrate having a plurality of common power supply wires and a plurality of common ground wires for inkjet recording head and inkjet recording head using the same Limitations on the number of recording elements capable of being simultaneously driven are relaxed so that driving voltage fluctuation falls within an allowable range. The substrate includes arrays of recording elements, common power supply wires extended from porti... | 10/28/2008 |
| 7425052 | Printhead assembly having improved adhesive bond strength A printhead assembly is provided. The printhead assembly comprises (a) a plurality of printhead integrated circuits comprising; and (b) an ink manifold having a mounting surface, the backside of each printhead integrated circuit being bonded to the mounting surface ... | 09/16/2008 |
| 7425057 | Liquid discharge head and method for manufacturing the same A liquid discharge head including a discharge element substrate including an orifice plate having a discharge port for discharging a liquid, and a supply port opened in the reverse side of the surface forming the discharge port for supplying a liquid into the discha... | 09/16/2008 |
| 7380906 | Printhead The present invention relates to a printhead for ejecting ink. The printhead comprises a first row of nozzle pods, and each nozzle pod comprises a plurality of nozzles arranged in rows and ranks. There is also provided a first ink supply for storing a first type of ... | 06/03/2008 |
| 7372145 | Bonded assembly having improved adhesive bond strength A bonded assembly is provided. The bonded assembly comprises: (a) a first substrate having a plurality of etched trenches defined in a first bonding surface; and (b) a second substrate having a second bonding surface. The second bonding surface is bonded to the firs... | 05/13/2008 |
| 7367655 | Integrated printhead with encoding circuit Ink jet printhead comprising a driving and encoding circuit (20) having a grid-like structure, including a plurality of inputs (24), a plurality of selecting elements (12), a plurality of actuating elements (IC) and at least one identifying elem... | 05/06/2008 |
| 7367657 | Inkjet printhead with transistor driver An inkjet printhead chip includes a substrate, transistors, isolation structures, a dielectric layer, a resistive layer and conductive sections. Each transistor includes a gate, a source, a drain and a gate oxide disposed between the gate and the substrate. The isol... | 05/06/2008 |
| 7364284 | Head substrate, printhead, head cartridge, and printing apparatus A head substrate having a fuse ROM can be provided without increasing the size. The head substrate includes an ink supply port which has a long hole shape elongated in a first direction, a plurality of printing elements arrayed along the first direction on both side... | 04/29/2008 |
| 7364276 | Continuous ink jet apparatus with integrated drop action devices and control circuitry A continuous liquid drop emission apparatus is provided. The liquid drop emission apparatus is comprised of a liquid chamber containing a positively pressurized liquid in flow communication with at least one nozzle for emitting a continuous stream of liquid and a je... | 04/29/2008 |
| 7354125 | Element board for printhead, and printhead having the same In a printhead element board including a plurality of printing elements which align in a predetermined direction, driving circuits which drive the printing elements, and an element selection circuit which selects printing elements within each group for each group ha... | 04/08/2008 |
| 7354139 | Printhead substrate, printhead, head cartridge, and printing apparatus A driving circuit layout can suppress an increase in the area of a head substrate in an inkjet printhead by adopting a driving method for supplying a predetermined current to a heater. A plurality of printing elements and a plurality of switching elements which are ... | 04/08/2008 |
| 7348657 | Electrostatic discharge protection networks for triple well semiconductor devices An electrostatic discharge protection network that uses triple well semiconductor devices either singularly or in a series configuration. The semiconductor devices are preferably in diode junction type configuration. ... | 03/25/2008 |
| 7347522 | Ink-jet head and image recording apparatus An ink-jet head which includes: a flow passage unit having plural nozzles and pressure chambers respectively communicating with the nozzles, the pressure chambers being arranged along a planar surface; an energy transfer unit which is fixed to the planar surface and... | 03/25/2008 |
| 7341341 | Handheld computing device incorporating a pagewidth inkjet printer A handheld computing device includes a body with a user interface and processing circuitry. A pagewidth inkjet printer is arranged within the body. A display is mounted on the body and is connected to the processing circuitry. A pivot assembly is interposed between ... | 03/11/2008 |
| 7338150 | Substrate for liquid discharge head, liquid discharge head using substrate for liquid discharge head and method of manufacturing the same A number of steps is reduced by manufacturing an electrode pad connecting a liquid discharge head to an external wiring by the same step of a common wiring for supplying an electric power to a discharge energy generating portion. A number of manufacturing steps of a... | 03/04/2008 |
| 7328980 | Thermal print head temperature estimation system A method estimates the temperature of a thermal print head element during printing. In one embodiment, the temperature is estimated using the resistance of the thermal print head element, which typically changes with the print head element temperature. The change in... | 02/12/2008 |
| 7328970 | Recording head and image recording device A recording head includes: liquid discharge ports that discharge liquid and are arranged at a pitch corresponding to a resolution, wherein said liquid including an ink; plural drive elements that cause the liquid to be discharged from the liquid discharge ports in c... | 02/12/2008 |
