William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Application No. | Application Title | Issue Date |
| 20070091147 | LIQUID DISCHARGE HEAD AND METHOD OF PRODUCING THE SAME A liquid discharge head including an energy generating element configured to generate energy required for discharging a liquid, a substrate having the energy generating element formed thereon, and an orifice member provided on the substrate and including a plurality of ... | 04/26/2007 |
| 20070076057 | Heater chips with a reduced number of bondpads Heater chips for use in printing devices, such as those including one or more ink vias and one or more heater arrays, where at least a portion of at least one the ink vias is associated with at least portions of at least two heater arrays. The first heater array can be ... | 04/05/2007 |
| 20070046732 | INKJET PRINTHEAD AND METHOD OF MANUFACTURING THE SAME An inkjet printhead and a method of manufacturing the same. In the inkjet printhead, a substrate includes an ink chamber formed in a top surface to contain ink to be ejected, an ink feedhole formed in a bottom surface to supply the ink to the ink chamber, and a restrict... | 03/01/2007 |
| 20070040868 | THERMAL PRINTHEAD A thermal printhead includes a ceramic substrate, a resistor layer that defines a plurality of heat-generating portions arranged in the main scanning direction, a common electrode connected to the plurality of heat-generating portions, a plurality of individual electrod... | 02/22/2007 |
| 20070030314 | Micro-electromechanical nozzle assembly with an arcuate actuator A micro-electromechanical nozzle assembly includes a substrate that defines an ink chamber and an ink ejection port in fluid communication with the ink chamber on an ejection side of the substrate. A control circuitry layer is positioned on an ink ingress side of the su... | 02/08/2007 |
| 20070019038 | Array inkjet head and inkjet image forming apparatus including the same An array inkjet head and an inkjet image forming apparatus including the same. The array inkjet head includes a nozzle unit having a length that corresponds to a width of a printing medium, a plurality of printheads mounted in respective mounting grooves formed in the n... | 01/25/2007 |
| 20070002101 | 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 the ... | 01/04/2007 |
| 20060244787 | Liquid ejection head, image forming apparatus and method of manufacturing liquid ejection head The liquid ejection head comprises: a flow channel plate in which liquid flow channels are formed; and an actuator forming plate on which actuators for generating pressure when ejecting the liquid are formed, wherein plate bonding parts through which the flow channel pl... | 11/02/2006 |
| 20060238575 | Monolithic ink-jet printhead having a metal nozzle plate and manufacturing method thereof A monolithic ink-jet printhead includes a substrate having an ink chamber to be supplied with ink to be ejected on a front surface thereof, a manifold for supplying ink to the ink chamber on a rear surface thereof, and an ink channel in communication with the ink chambe... | 10/26/2006 |
| 20060221141 | Heater chip for inkjet printhead with electrostatic discharge protection An inkjet printhead heater chip includes a resistor layer, a dielectric layer on the resistor layer and a cavitation layer on the dielectric layer. A grounded-gate MOSFET electrically attaches to the cavitation layer to protect the dielectric layer from breakdown during... | 10/05/2006 |
| 20060209133 | Method of printing which minimizes cross-contamination between nozzles A method of printing from a printhead, whilst minimizing cross-contamination of ink between adjacent nozzles is provided. The method comprises the steps of: (a) providing a printhead comprising a substrate, which includes a plurality of nozzles for ejecting ink droplets... | 09/21/2006 |
| 20060209134 | Method of fabricating a printhead having isolated nozzles A method of fabricating a printhead having isolated nozzles is provided. The method comprises the steps of: (a) providing a substrate, the substrate including a plurality of nozzles for ejecting ink droplets onto a print medium, each nozzle having a nozzle aperture defi... | 09/21/2006 |
| 20060146095 | 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 the... | 07/06/2006 |
| 20060114294 | Monolithic ink-jet printhead and method for manufacturing the same An ink-jet printhead and a method for manufacturing the same utilize coating a first photosensitive photoresist on the substrate and forming a passage plate, forming an ink chamber and an ink passage on the passage plate, burying the ink chamber and the ink passage usin... | 06/01/2006 |
| 20060066681 | Power and ground buss layout for reduced substrate size A semiconductor substrate for a micro-fluid ejection device. The substrate includes plurality of micro-fluid ejection actuators disposed adjacent a fluid supply slot in the semiconductor substrate. A plurality of power transistors, occupying a power transistor active ar... | 03/30/2006 |
| 20060044357 | Low ejection energy micro-fluid ejection heads A micro-fluid ejection device structure and method therefor having improved low energy design. The devices includes a semiconductor substrate and an insulating layer deposited on the semiconductor substrate. A plurality of heater resistors are formed on the insulating l... | 03/02/2006 |
| 20060028510 | Method of fabricating an inkjet print head using a photo-curable resin composition A method of fabricating an inkjet print head including forming an energy-generating element to eject ink on a substrate. A chamber layer and a nozzle layer having a nozzle corresponding to the energy-generating element are formed on the substrate. At least one layer of ... | 02/09/2006 |
| 20060007270 | Methods of fabricating fit firing chambers of different drop wights on a single printhead Inkjet printheads capable of printing smaller and larger drop-weight quantities of ink, and methods of manufacturing the inkjet printheads, are disclosed. The inkjet printhead includes a substrate. One or more portions of the substrate may be etched such that the substr... | 01/12/2006 |
| 20050280673 | Liquid ejection head A liquid ejection head can eject very fine droplets of the order of sub-picoliter. The liquid ejection head is provided with an ejection port 3 for ejecting liquid as liquid droplets and comprises an energy generating element 1 arranged vis-à-vis the ejec... | 12/22/2005 |
| 20050243142 | 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 layer, ... | 11/03/2005 |
| 20050243141 | Fluid ejection device and manufacturing method A method for manufacturing a fluid ejection device includes providing a sacrificial structure substantially overlying a semiconductor substrate. The structure has a shape configured to define an ink chamber, ink manifold, and a nozzle. The method also includes providing... | 11/03/2005 |
| 20050193558 | Method of optimizing inkjet printheads using a plasma-etching process A method for creating an inkjet chamber. The method comprises the steps of firstly providing a substrate having a nozzle opening and secondly etching the substrate through the nozzle opening by alternating between anisotropic and isotropic etching processes for forming ... | 09/08/2005 |
| 20050179744 | Liquid discharge head and method of manufacturing the same A method of manufacturing a liquid discharge head, comprising the steps of forming a film of an inorganic material in the form of a liquid flow path pattern on a substrate having liquid discharge elements formed thereon, forming a liquid flow path member on the film of ... | 08/18/2005 |
| 20050174390 | Heating element, fluid heating device, inkjet printhead, and print cartridge having the same and method of making the same According to an embodiment of the invention, there is provided a heating element including a substrate, a conductive layer disposed over the substrate to define a first conductive trace and a second conductive trace with a spacer therebetween and a resistive layer cover... | 08/11/2005 |
| 20050162482 | Monolithic ink-jet printhead having a tapered nozzle and method for manufacturing the same A monolithic ink-jet printhead includes a substrate having an ink chamber, a manifold, and an ink channel in flow communication, a nozzle plate including a plurality of passivation layers stacked on the substrate and a heat dissipating layer stacked on the passivation l... | 07/28/2005 |
| 20050122379 | Heat generating resistive element, substrate for liquid discharge head having the heat generating resistive element, liquid discharge head, and manufacturing method therefor A heat generating resistive element which is used in a liquid discharge head for discharging a liquid from a discharge port by thermal energy, consisting of a composition ratio of 15-30 at % Fe, 35-60 at % Si, 10-50 at % N and 1-10 at % O, in total to 100 at % or substa... | 06/09/2005 |
| 20050104935 | Structure of inkjet-head chip and method for making the same A structure of inkjet-head chip and a method for making the same are disclosed. Driven by the need of making a thin insulator layer to lower the working power of the inkjet-head chip, we separately manufacture a passivation layer and a second conductive layer. The passi... | 05/19/2005 |
| 20050093936 | Fluid injector and method of manufacturing the same A fluid injector and method of manufacturing the same. The fluid injector comprises a base, a first through hole, a fluid actuator, a passivation layer, and a thick hydrophobic film. The base includes a chamber and a surface. The first through hole communicates with the... | 05/05/2005 |
| 20050083378 | FLUID EJECTION DEVICE WITH COMPRESSIVE ALPHA-TANTALUM LAYER A fluid ejection device is disclosed. The fluid ejection device may include a substrate including a heating element and a passivation layer in contact with the heating element. The fluid ejection device may further include a buffer layer in contact with the passivation ... | 04/21/2005 |
| 20050078151 | Thin film ink jet printhead adhesion enhancement An ink jet printhead for an ink jet printer and method for making an improved printhead. The printhead includes a nozzle plate attached to a heater chip. The heater chip is a semiconductor substrate having a resistive layer deposited on the substrate, a dielectric layer... | 04/14/2005 |
| 20050052501 | Heater for inkjet printer head and method for production thereof To provide a heater for an inkjet printer head which consumes low power or has a long service life and a high printing resolution, and a method for production thereof. A heater layer 24 covers a heater locating section 22a of a base layer 22 ... | 03/10/2005 |
| 20050041070 | LDMOS and CMOS integrated circuit and method of making An integrated circuit (IC) is formed on a substrate. The IC has a first well having a first dopant concentration that includes a second conductivity low-voltage transistor. The IC also has a second well having a dopant concentration equal to the first dopant concentrati... | 02/24/2005 |
| 20050024441 | Ink-jet printhead and method of manufacturing the same An ink-jet printhead, and a method of manufacturing the same, includes a substrate, an ink chamber, a manifold, and an ink channel formed between the ink chamber and the manifold to provide flow communication between the ink chamber and the manifold, a substantially fla... | 02/03/2005 |
| 20050018018 | Fluid ejection device adherence Fluid-ejection devices capable of ejecting fluid onto media and methods for their manufacture are provided. One embodiment includes adhering a fluid-ejecting substrate of the fluid-ejection device to a carrier of the fluid-ejection device by drawing an adhesive between ... | 01/27/2005 |
| 20050007424 | Diffusion barrier and method therefor A semiconductor device containing at least one transistor and at least one heater resistor in a heater resistor area adjacent the at least one transistor on a semiconductor substrate. The device includes a silicon substrate containing contact openings for metal contacts... | 01/13/2005 |
| 20050001884 | Fluid injection micro device and fabrication method thereof A method for fabricating a fluid injection micro device. The method includes the steps of providing a substrate with an insulating layer thereon. A heater is formed on the insulating layer. A patterned conductive layer is formed on the heater and the insulating layer. A... | 01/06/2005 |
| 20050001883 | Ink-jet printhead An ink-jet printhead includes a substrate having an ink chamber and a manifold, a nozzle plate formed on the substrate, first and second heaters and conductors, a material layer, and a plurality of ink channels. The nozzle plate includes a plurality of passivation layer... | 01/06/2005 |