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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 8152279 | Liquid ejection head having substrate with nickel-containing layer An ink jet printing head substrate has a high adhesion between an electrode layer and a nozzle formation member and the corrosion or electrolysis, for example, of an electrode due to the contact between the electrode and ink can be reduced. The ink jet printing head... | 04/10/2012 |
| 8141987 | Ink jet recording head, manufacturing method thereof, and electron device An ink jet recording head includes a substrate, having a front surface and a back surface opposite from the front surface, provided above the front surface with an energy generating element for generating energy used for ejecting ink; an ink supply port provided so ... | 03/27/2012 |
| 8070265 | Heater stack in a micro-fluid ejection device and method for forming floating electrical heater element in the heater stack A method for forming a floating heater element includes processing a silicon substrate to form a heater stack having the heater element on the substrate with peripheral edge portions, processing the heater stack by depositing and patterning a layer of photoresist or... | 12/06/2011 |
| 7976132 | Printhead having moving roof structure and mechanical seal A nozzle assembly for an inkjet printhead is provided. The nozzle assembly comprises a nozzle chamber having a roof, the roof having a moving portion moveable relative to a static portion and a nozzle opening defined in the roof, such that movement of the moving por... | 07/12/2011 |
| 7828419 | Ink jet recording head and method of manufacturing the same An ink jet recording head includes a substrate having a plurality of energy-generating elements that generate energy for discharging ink droplets and an ink supply port extending in a direction in which the energy-generating elements are arranged, a plurality of dis... | 11/09/2010 |
| 7819506 | Flexible encapsulant materials for micro-fluid ejection heads and methods relating thereto Thermally curable encapsulant compositions, micro-fluid ejection devices, and methods for protecting micro-fluid ejection heads. One such encapsulant composition may include one having from about 50.0 to about 95.0 percent by weight of at least one cross-linkable re... | 10/26/2010 |
| 7753495 | Ink jet recording head, manufacturing method therefor, and substrate for ink jet recording head manufacture A base member for use in manufacturing an ink jet recording head, which includes a supply port, an ejection outlet, a liquid flow path for directing liquid supplied from the supply port to the ejection outlet, and an ejection pressure generating element, disposed in... | 07/13/2010 |
| 7699441 | Liquid drop ejector having improved liquid chamber A liquid drop ejector includes a substrate and a liquid chamber for receiving a liquid. The liquid chamber is positioned over the substrate and includes a nozzle plate, a chamber wall and a liner layer. The nozzle plate and the chamber wall include an organic materi... | 04/20/2010 |
| 7665827 | Liquid discharge recording head having an improved oxetane resin covering layer as part of a liquid flow path and liquid discharge apparatus A liquid discharge recording head which discharges a liquid includes a substrate on which liquid-discharge-energy-generating elements are provided and which constitutes a part of a flow path for supplying the liquid; and a covering resin layer which is provided on t... | 02/23/2010 |
| 7641316 | Ink jet head circuit board, method of manufacturing the same and ink jet head using the same An ink jet head circuit board is provided which has heaters to generate thermal energy for ink ejection as they are energized. This circuit board reduces areas of the heaters to achieve higher printing resolution and image quality. This board also prevents a degrada... | 01/05/2010 |
| 7566116 | Ink jet head circuit board, method of manufacturing the same and ink jet head using the same In an ink jet head circuit board including a heater for generating thermal energy used for ejecting ink in response to application of electricity, a drop in thermal energy efficiency is prevented while reducing an area of the heater to achieve higher-resolution and ... | 07/28/2009 |
| 7559631 | Liquid-jet head, method for manufacturing the same, and liquid-jet apparatus A liquid-jet head and a manufacturing method thereof are provided. The liquid-jet head includes a channel substrate which has pressure generation chambers formed therein and communicating nozzle orifices for discharging liquid droplets, and piezoelectric elements. T... | 07/14/2009 |
| 7533971 | Head of inkjet printer and method of manufacturing the same A head of an inkjet printer is formed by bonding of a heater substrate and a nozzle plate. In order to bond the heater substrate where a heater thin film and a protecting film are vapor-deposited, and the nozzle plate where a nozzle is formed, an intermediate layer ... | 05/19/2009 |
| 7517060 | Fluid-ejection devices and a deposition method for layers thereof A cavitation structure for a print head has a first dielectric layer overlying at least a first portion of a substrate. A second dielectric layer has a first portion overlying at least a second portion of the substrate and a second portion, different from the first ... | 04/14/2009 |
| 7517059 | Liquid jet head and method for producing the same In a liquid jet recording head, a liquid is prevented from eroding a substrate, significant deformation of a discharge port forming member caused by absorption of the liquid is prevented even in long-term use, and reliability is improved in a discharging operation o... | 04/14/2009 |
| 7484834 | Thermal head, method of manufacturing the same, and thermal printer A thermal head in which battery effect-induced corrosion can be retarded while maintaining excellent anti-static capability in an upper conductive protective film, is provided. The thermal head includes a substrate, a heater element arranged on the surface of the su... | 02/03/2009 |
| 7467857 | Micromachined fluid ejectors using piezoelectric actuation A micromachined fluid ejector includes an ejector body having a fluid cavity for holding fluid to be ejected and a piezoelectric actuator for ejecting the fluid. A nozzle plate is placed in operable association with the ejector body. The configuration of the nozzle ... | 12/23/2008 |
| 7425058 | Multi-nozzle ink jet head and manufacturing method thereof A multi-nozzle ink jet head using piezoelectric elements and a manufacturing method thereof are disclosed. A head (1) has a nozzle member (10) in which a plurality of nozzles (12) are formed, a pressure chamber wall member (14) in which a... | 09/16/2008 |
| 7413289 | Low energy, long life micro-fluid ejection device Micro-fluid ejection heads and methods for extending the life of micro-fluid ejection heads. One such micro-fluid ejection head includes a substrate having a plurality of thermal ejection actuators. Each of the thermal ejection actuators has a resistive layer and a ... | 08/19/2008 |
| 7410246 | Heater chip configuration for an inkjet printhead and printer A heater chip has a plurality of heaters each having a length, width and thickness. The length multiplied by the width (heater area) is in a range from about 50 to about 500 micrometers squared while the thickness is in a range from about 500 to about 5000 or 6000 a... | 08/12/2008 |
| 7393084 | Substrate for ink jet head with TaCr alloy protective layer, ink jet head utilizing the same and producing method therefor For improving adhesion between a protective layer having a portion coming into contact with ink in a substrate for an ink jet head, and a resin layer thereby ensuring reliability in quality over a prolonged period, the invention provides a substrate for an ink jet h... | 07/01/2008 |
| 7390078 | Reduction of heat loss in micro-fluid ejection devices The present disclosure is directed to a micro-fluid ejection head for a micro-fluid ejection device. The head includes a semiconductor substrate, a fluid ejection actuator supported by the semiconductor substrate, a nozzle member containing nozzle holes attached to ... | 06/24/2008 |
| 7390079 | Device mounting structure, device mounting method, electronic apparatus, liquid droplet ejection head, and liquid droplet ejection apparatus A device mounting structure includes: a base; a unit having a mounting area on which a device is mounted; a projection formed on a face of the unit; a first wiring disposed on the unit and between a top part of the projection and the mounting area; a groove provided... | 06/24/2008 |
| 7387370 | Microfluidic architecture A microfluidic architecture is disclosed. The microfluidic architecture includes a substrate having an edge and a thin film stack established on at least a portion of the substrate adjacent the edge. The thin film stack includes a non-conducting layer and a seed lay... | 06/17/2008 |
| 7380914 | Fluid ejection assembly A fluid ejection assembly includes a first layer, and a second layer positioned on a side of the first layer. The second layer has a side adjacent the side of the first layer and includes barriers defining a fluid chamber on the side, a drop ejecting element formed ... | 06/03/2008 |
| 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 |
| 7355323 | Piezoelectric device, droplet jetting device using the same, and image output device A piezoelectric device includes a flexible substrate and a piezoelectric element including a pair of electrodes each positioned on the flexible substrate. A switching element is connected to one of the pair of electrodes, in the flexible substrate, and a common line... | 04/08/2008 |
| 7354522 | Substrate etching method for forming connected features A method of etching a substrate and an article(s) formed using the method are provided. The method includes providing a substrate; coating a region of the substrate with a temporary material having properties that enable the temporary material to remain substantiall... | 04/08/2008 |
| 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 |
| 7328978 | Printhead heaters with short pulse time A thermal inkjet printhead with heater elements disposed in respective bubble forming chambers whereby each heater element is configured for receiving an energizing pulse to form a gas bubble in an ejectable liquid that causes the ejection of a drop of the ejectable... | 02/12/2008 |
| 7328981 | Electrostatic actuator, liquid discharge head, liquid cartridge, imaging apparatus, micro pump, and optical device An electrostatic actuator is disclosed that includes a deformable oscillating plate that is deformed by electrostatic force, an electrode that is arranged opposite the oscillating plate via a gap formed by sacrificial layer etching, a connection path that is connect... | 02/12/2008 |
| 7323805 | Piezoelectric thin film device and method for manufacturing the same A piezoelectric thin film device includes an amorphous metal film disposed on a substrate and a piezoelectric film disposed on the amorphous metal. One of crystal axis of the piezoelectric film is aligned in a direction perpendicular to a surface of the amorphous me... | 01/29/2008 |
| 7309020 | Deposition fabrication using inkjet technology A method of fabricating a circuit lead, the method comprising: (a) depositing a slurry upon a substrate in a predetermined pattern, the substrate including a plurality of substantially uniformly patterned micropores operative to drain a fluid component of the slurry... | 12/18/2007 |
| 7306327 | Substrate for ink jet head, ink jet head using the same, and manufacturing method thereof The present invention provides a substrate for ink jet including a heating resistor generating thermal energy for discharging an ink from an ink discharge port and an upper protective layer which is formed above the heating resistor and has a contacting surface with... | 12/11/2007 |
| 7303263 | Thermal ink jet printhead with high nozzle areal density There is disclosed an inkjet printhead which comprises a plurality of nozzles (3) and one or more heater elements (10) corresponding to each nozzle (3). Each heater element is configured to heat a bubble forming liquid in the printhead to a temp... | 12/04/2007 |
| 7296880 | Ink-jet printer head having laminated protective layer and method of fabricating the same A heat transfer type ink-jet print head and a method of fabricating the same. A method of fabricating an ink-jet print head includes operations of sequentially laminating a heat generation layer and an electrode layer on a substrate, laminating a protective layer on... | 11/20/2007 |
| 7287838 | Liquid discharge head having protective film for heating element and substrate therefor A liquid discharge head substrate has improved protection performance of protective films for protecting heaters while effective bubble-forming regions are being secured. The protective films for protecting a plurality of heating elements provided on a substrate are... | 10/30/2007 |
| 7282430 | Melt-based patterning for electronic devices The present invention provides methods and apparatus for melt-based patterning for electronic devices. It employs and provides processes and apparatus for fabricating an electronic device having a pattern formed on a surface by a deposition material. Further, the in... | 10/16/2007 |
| 7278717 | Thermal ink jet printhead with suspended beam heater There is disclosed an ink jet printhead which comprises a plurality of nozzles (3) and one or more heater elements (10) corresponding to each nozzle. Each heater element is configured to heat a bubble (12) forming liquid in the printhead to a te... | 10/09/2007 |
| 7275814 | Monolithic printhead with multiple ink feeder channels and relative manufacturing process A thermal ink jet printhead (40) for the emission of drops of ink on a print medium (46) comprises a tank (103) containing ink (142), a lamina (67), a groove (45) and a plurality of ejectors (73), each of which compri... | 10/02/2007 |
