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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7254006 | Ion generating element and ion generator, air conditioning apparatus, cleaner and refrigerator containing the same An inner electrode formed inside a dielectric body and a surface electrode formed on a surface of the dielectric body. The surface electrode is formed in a grid pattern with pointed parts formed inside the grid section. Each pointed part is in the shape of a triangl... | 08/07/2007 |
| 7236292 | Components and methods for use in electro-optic displays A front plane laminate useful in the manufacture of electro-optic displays comprises, in order, a light-transmissive electrically-conductive layer, a layer of an electro-optic medium in electrical contact with the electrically-conductive layer, an adhesive layer and... | 06/26/2007 |
| 7216958 | Method of expelling a fluid using an ion wind and ink-jet printhead utilizing the method A method of expelling a fluid includes filling a nozzle with a fluid using a capillary force, generating an ion wind by ionizing air near an outlet of the nozzle, and expelling the fluid from the nozzle as the ion wind decreases a pressure around the outlet of the n... | 05/15/2007 |
| 7201102 | Method and printer device for transferring printing fluid onto a carrier material as well as appertaining printing drum The invention relates to a method according to which print data determine the image elements of a printing format to be printed on a substrate. According to the inventive method, the surface tension of a printing liquid (30, 34) is influenced depending on the... | 04/10/2007 |
| 7160365 | Ion generating apparatus, air conditioning apparatus, and charging apparatus An ion generating apparatus is built by sandwiching a dielectric layer between an induction electrode and a discharge electrode. The induction electrode is formed of a metal substrate of, for example, aluminum. Even when the apparatus is made larger, it offers impro... | 01/09/2007 |
| 6962405 | Substrate for ink jet recording head, ink jet recording head and ink jet recording apparatus using ink jet recording head In a case where first wirings (wirings for a driving power supply (VH)) commonly connected to a plurality of electro-thermal converting elements and adapted to supply an electric power to the plurality of electro-thermal converting elements and second wirings (high ... | 11/08/2005 |
| 6923979 | Method for depositing particles onto a substrate using an alternating electric field Uniform portions of fine powders are deposited on a substrate by electrostatic attraction in which the charge of the electric field and polarity of the charged particles are varied repeatedly to form a buildup of powder on the carrier surface. ... | 08/02/2005 |
| 6504557 | Charge emitting print head for image forming systems A print head suitable for use in an image forming system is provided having a pair of electrode layers separated by an isolating structure that includes a semiconductor. The presence of the semiconductor, such as a semiconductor layer, extends the life of... | 01/07/2003 |
| 6501494 | Thin film printhead with layered dielectric A printhead is disclosed having a dielectric layer composition with a relatively small capacitance while also being substantially plasma erosion resistant. In accordance with one example embodiment of the present invention, the printhead has at least a fi... | 12/31/2002 |
| 6476835 | Coplanar thin film printhead A method and apparatus relating to a unique printhead configuration is disclosed. The printhead configuration is based on a coplanar arrangement of two sets of electrodes. The electrodes are electrically separated from each other by a dielectric layer, an... | 11/05/2002 |
| 6462764 | Printhead with redundant electrodes A printhead having a set of redundant rows of electrodes. The set of redundant rows is formed by providing additional rows of a first set of electrodes that repeats the charge-deposition pattern of another electrode in the set. The redundant electrodes ar... | 10/08/2002 |
| 6426768 | Universal printhead A method and apparatus for a universal printhead is disclosed that functions independently of the diameter of a charge receiving dielectric drum, while optimizing print quality. The printhead includes two sets of electrodes mutually separated by a dielect... | 07/30/2002 |
| 6414702 | Printhead with plasma suppressing electrodes A printhead having a plasma suppressing electrode configuration is disclosed. The printhead includes a first electrode layer. There is also a second electrode layer, electrically insulated from the first electrode layer by a dielectric material. In additi... | 07/02/2002 |
| 6377289 | Modular printhead A modular printhead is disclosed having the ability to separate, leaving a first collection of predetermined layers relatively permanently affixed to a print engine while a second collection of predetermined layers resides in a relatively disposable compo... | 04/23/2002 |
| 6239823 | Electrostatic latent image forming printhead having separate discharge and modulation electrodes Improved electrostatic latent image charge generator consisting of generator electrodes substantially in contact with one side of a first solid dielectric member; a discharge electrode substantially in contact with the other side of the solid dielectric m... | 05/29/2001 |
| 6072269 | Ceramic member with an electrode and a plurality of tapered through holes for controlling the ejection of particles by switching the sign of a charge on the electrode A ceramic member has a flat or curved ceramic plate having a plurality of minute through holes of a maximum pore diameter of 150 μm or less, and having electrodes installed on one surface of the plate. The ceramic member controls the ejection of ions car... | 06/06/2000 |
| 6028615 | Plasma discharge emitter device and array An inexpensive, robust plasma discharge emitter that repeatably creates a patterned charge on a substrate. To facilitate highly accurate charge deposition, each emitter contains a plasma well for confining the plasma within the emitter. Additionally, a pl... | 02/22/2000 |
| 5646669 | Corrosion resistant electrostatic recording head with multiple layers An electrostatic recording head comprises an insulating substrate having a builtup structure thereon. The builtup structure includes, in the following order, a plurality of dielectric electrode strips having portions which are arranged in parallel to and ... | 07/08/1997 |
| 5559544 | Image forming apparatus with cooperating housing structure In an image forming apparatus, an aperture electrode member, a toner supply device, a fixing device, a main power source and a main base plate are mounted to a main body case while a back electrode roller is disposed on a lid member. When the lid member i... | 09/24/1996 |
| 5450103 | Charge imaging system with back electrode dot enhancement An electrographic printing system moves a dielectric imaging member past a charge transfer print cartridge or bulk charging source, and a landing electrode arrangement directs charged particles with enhanced precision to dot positions on the imaging membe... | 09/12/1995 |
| 5296878 | Apparatus for generating ions in solid ion recording head with improved stability An apparatus for generating ions in a solid ion recording head, capable of achieving an improved stability in the generation of high density ions. The apparatus includes: a plurality of ion generation electrodes having a plurality of slit sections; an ind... | 03/22/1994 |
| 5278588 | Electrographic printing device An electrographic printhead is operated to focus charged particles on a print member. In one embodiment successive electrodes are maintained at potentials that define increasing electric field strengths in the successive regions along the particle traject... | 01/11/1994 |
| 5243365 | Positively purged print cartridge In electrostatic imaging utilizing a silent electric discharge, nitrogen or other controlled gas is supplied to the discharge region. First and second control fingers each having first and second ends and a number of active openings along their lengths, p... | 09/07/1993 |
| 5239318 | Finger driver and printer A driver for the finger electrodes in a charge-deposition print cartridge controls the finger potential between a printing and a non-printing state. All fingers are reset at once by a common power source, to which each is connected by a diode. Charge stor... | 08/24/1993 |
| 5239317 | Apparatus for generating ions in solid ion recording head with improved stability An apparatus for generating ions in a solid ion recording head, capable of achieving an improved stability in the generation of high density ions. The apparatus includes: a plurality of ion generation electrodes having a plurality of slit sections; an ind... | 08/24/1993 |
| 5202705 | Electrostatic latent image forming device having a ceramic insulating layer An electrostatic latent image forming device has at least two electrodes with an insulating layer formed between the two electrodes. The electrodes are arranged in a matrix array. One set of electrodes has space regions formed in the electrodes in which c... | 04/13/1993 |
| 5170189 | Electrostatic latent image forming device with integral feeder terminal connection Electrostatic latent image forming device includes a first insulating base plate, a plurality of first electrodes and a plurality of second electrodes disposed to form a matrix with a second insulating base plate interposed therebetween. Each of the secon... | 12/08/1992 |
| 5159358 | Divided screen printer A printer has a print cartridge with a plurality of electrically isolated screen electrodes extending in parallel strips and maintained at different potentials to define a uniform electric field in the gap between a print cartridge and a latent imaging me... | 10/27/1992 |
| 5128695 | Imaging material providing device In an image recording apparatus of this invention, a high voltage is applied to a blade for scratching a brush roller on which the toner particles are supported. The high voltage applicator is installed in an image recording apparatus which supplies toner... | 07/07/1992 |
| 5068961 | Method of manufacturing ion flow recording head A method of manufacturing an ion flow recording head of this invention is a method of manufacturing an ion flow recording head which has an ion flow controller in which a first electrode, a first insulating layer, a second electrode, a second insulating l... | 12/03/1991 |
| 5030975 | Charge transfer imaging cartridge A cartridge for use in charge transfer imaging comprising a flexible dielectric substrate carrying sets of driver electrodes and finger electrodes, the electrodes being separated by a dielectric layer. The respective electrodes extend in different directi... | 07/09/1991 |
| 5027136 | Method and apparatus for charged particle generation Method and apparatus for charged particle generation, particularly for use in electrographic imaging, in which a drive electrode and an isolation electrode are substantially in contact with opposite sides of a solid dielectric member, and a discharge elec... | 06/25/1991 |
| 5025552 | Method of manufacturing ion current recording head First and second electrodes are formed on a pair of opposite surfaces of a polyimide film. The first and second electrodes respectively have a large number of small holes which oppose each other through the polyimide film. An excimer laser beam is radiate... | 06/25/1991 |
| 5014076 | Printer with high frequency charge carrier generation An electrode array forms a latent image by generating an electrical breakdown region and extracting an imagewise distribution of charge carriers which are accelerated toward a separate surface. Different control mechanisms, environments and ranges of oper... | 05/07/1991 |
| 5006869 | Charged particle printer The invention provides an electrostatic print cartridge for use in placing electrostatically charged dots on a charge receiving surface to build a latent image for subsequent toning. The cartridge includes a rigid spine to prevent the cartridge from bendi... | 04/09/1991 |
| 4999653 | Venetian blinding A print cartridge is described for charged particle deposition of latent images on a receptor surface adapted to move longitudinally. The cartridge has driver electrodes extending transversely with respect to the movement of the receptor surface and a die... | 03/12/1991 |
| 4956670 | Electrostatic latent image forming apparatus controlling the direction of derivation of ions In an electrostatic latent image forming apparatus used in a printer, a facsimile machine or the like, there is added an insulating member between the conventional screen electrode and the latent image bearing body to allow the derived-ion beam to be sque... | 09/11/1990 |
| 4918468 | Method and apparatus for charged particle generation Method and apparatus for charged particle generation, particularly for use in electrographic imaging, in which charged particles are generated in a discharge region and extracted to form an electrostatic image, wherein a controlled gas is introduced into ... | 04/17/1990 |
| 4891656 | Print cartridge with non-divergent electrostatic field There is disclosed a print cartridge for use in charge transfer imaging comprising first and second electrodes on opposite sides of a layer of dielectric material. The first electrodes extend in a first direction and the second electrodes extend in a seco... | 01/02/1990 |
| 4890123 | Print cartridge There is disclosed a print cartridge for use in charge transfer imaging comprising a dielectric substrate, driver electrodes extending in a first direction along the substrate, a dielectric layer covering the electrodes, and finger electrodes extending in... | 12/26/1989 |
