...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7938950 | Surface-treated metal material, surface-treating method, resin-coated metal material, metal can and can lid A method of treating surfaces of a steel plate by forming an inorganic film on the surfaces of the steel plate by cathodic electrolytic treatment in an aqueous solution containing Zr and F and not containing phosphoric acid ions. Also disclosed is a method of treati... | 05/10/2011 |
| 7419579 | Method for manufacturing a ferroelectric film A method for manufacturing a ferroelectric film includes the steps of causing, in a solution containing sol-gel raw materials, hydrolysis and polycondensation to the sol-gel raw materials to form a liquid containing particulate gels dispersed therein, and forming a ... | 09/02/2008 |
| 7363729 | Manufacturing method of optical film, and optical film A washing process to sufficiently remove contaminants attached on the surface of an optical film is proposed. Specifically, disclosed is a method of manufacturing an optical film, wherein the method possesses the steps of spraying onto at least one surface of a tran... | 04/29/2008 |
| 7361261 | Method of preparing a chiral substrate surface by electrodeposition A solid substrate comprising a surface comprising an achiral array of atoms having thereupon a chiral metal oxide surface. The chiral metal oxide surface is prepared by electrodeposition of a chiral metal oxide array from a solution of a chiral salt of the metal. In... | 04/22/2008 |
| 7347924 | Anodizing of optically transmissive substrate Metallization is disposed on at least a portion of an electrically nonconductive substrate. Plating is then disposed on the metallization, and an anodized layer of the plating is configured to provide the substrate with an anodized surface. The substrate may be glas... | 03/25/2008 |
| 7332782 | Dye-sensitized solar cell A dye-sensitized solar cell with high conversion efficiency is provided. The dye-sensitized solar cell according to the present invention has, between an electrode (2) formed on a surface of a transparent substrate (1) and a counter electrode (6... | 02/19/2008 |
| 7323221 | Coating of objects The present invention relates to a process for the coating of objects made of valve metals or their alloys with a thin barrier layer consisting of the metal and an oxide ceramic layer provided thereon whose surface has been coated with fluoropolymers, characterized ... | 01/29/2008 |
| 7311787 | Method for the darkening of a surface layer of a piece of material containing zinc The invention relates to a method for darkening a superficial layer of a workpiece which contains zinc by anodic oxidation. The workpiece is oxidized in a soaking bath containing an aqueous solution comprised of a hydroxide and of a nitrate. The anodic oxidation may... | 12/25/2007 |
| 7282190 | Silicon layer production method and solar cell production method A solar cell is produced by dipping a multicrystalline silicon substrate 28 in a solution 24 containing silicon, growing a silicon layer on the substrate 28 while decreasing with time the temperature drop rate of the solution during the dipping ... | 10/16/2007 |
| 7276002 | Surface texture configuration for CVT pulley A pulley engageable with a belt for use in a continuously variable transmission includes first and second pulley halves rotatable about an axis and relatively moveable in a direction of the axis. The pulley halves include truncated conical portions symmetrically opp... | 10/02/2007 |
| 7267426 | Liquid-repellent film-coated member, constitutive member of liquid-jet device, nozzle plate of liquid-jet head, liquid-jet head, and liquid-jet device The present invention provides a member comprising a substrate, an undercoat film formed on a surface of the substrate, and a liquid-repellent film of metal alkoxide formed on a surface of the undercoat film. Also disclosed are nozzle head, liquid-jet head and liqui... | 09/11/2007 |
| 7261835 | Acid blend for removing etch residue A method for removing organometallic and organosilicate residues remaining after a dry etch process from semiconductor substrates. The substrate is exposed to a conditioning solution of phosphoric acid, hydrofluoric acid, and a carboxylic acid, such as acetic acid, ... | 08/28/2007 |
| 7250326 | Substrate with an electrode and method of producing the same The present invention provides a method of forming a transparent conductive film at a low temperature that is suitable for use with a synthetic resin substrate. According to the production method of a substrate with an electrode of the present invention, an oxide co... | 07/31/2007 |
| 7235161 | Stable anodes including iron oxide and use of such anodes in metal production cells Stable anodes comprising iron oxide useful for the electrolytic production of metal such as aluminum are disclosed. The iron oxide may comprise Fe3O4, Fe2O3, FeO or a combination thereof. During the electrolytic aluminum p... | 06/26/2007 |
| 7220683 | Transparent amorphous carbon structure in semiconductor devices A transparent amorphous carbon layer is formed. The transparent amorphous carbon layer has a low absorption coefficient such that the amorphous carbon is transparent in visible light. The transparent amorphous carbon layer may be used in semiconductor devices for di... | 05/22/2007 |
| 7204925 | Structure and method of preventing electrolytic corrosion for magnesium alloy member A structure and a method of preventing electrolytic corrosion for a magnesium alloy member (20), the structure wherein a first coated layer (11) formed by electro deposition and a second coated layer (12) formed by distributing PTFE particles on... | 04/17/2007 |
| 7175676 | Process for manufacturing high-stability crystalline anodic aluminum oxide for pulse discharge capacitors A process for producing high stability crystalline anodic aluminum oxide includes anodizing an anodic foil, hydrating the foil, and forming a barrier oxide layer on the foil. Anodizing the anodic foil produces nano-porous amorphous oxides which can then be converted... | 02/13/2007 |
| 7171267 | Reforming wet-tantalum capacitors in implantable defibrillators and other medical devices Miniature defibrillators and cardioverters detect abnormal heart rhythms and automatically apply electrical therapy to restore normal heart function. Critical components in these devices are aluminum electrolytic capacitors, which store and deliver one or more life-... | 01/30/2007 |
| 7132201 | Transparent amorphous carbon structure in semiconductor devices A transparent amorphous carbon layer is formed. The transparent amorphous carbon layer has a low absorption coefficient such that the amorphous carbon is transparent in visible light. The transparent amorphous carbon layer may be used in semiconductor devices for di... | 11/07/2006 |
| 7131988 | Reforming wet-tantalum capacitors in implantable medical devices Miniature defibrillators and cardioverters detect abnormal heart rhythms and automatically apply electrical therapy to restore normal heart function. Critical to this function, aluminum-electrolytic capacitors store and deliver life-saving bursts of electric charge ... | 11/07/2006 |
| 7112264 | Plating apparatus and method A plating apparatus includes a plating vessel for holding a plating bath containing at least metal ions, a conveying device for conveying a long conductive substrate and immersing the long conductive substrate in the plating bath, a facing electrode disposed in the ... | 09/26/2006 |
| 7077943 | Barium titanate film synthesizing process A new technique to synthesize barium titanate (BaTiO3) on homogeneous substrates (titanium) or heterogeneous substrates (silicon wafers, metal, glass, ceramics, polymers, other metals, etc.) is disclosed to include a first step to deposit a titanium film ... | 07/18/2006 |
| 7056424 | Cathode for electrochemical regeneration of permanganate etching solutions In order to regenerate permanganate solutions being utilized for the etching and roughening of plastics surfaces electrolytic methods are known. Though relatively small quantaties of by-products are produced with these methods as compared to chemical regeneration me... | 06/06/2006 |
| 7029566 | Process of forming HA/ZrOcomplex coating on Co—Cr—Mo alloy In a process of forming a HA/ZrO2 complex coating on a Co—Cr—Mo alloy substrate, the substrate is subjected to electrolytic deposition respectively in a ZrO(NO3)2 bath and a mixed solution of Ca(NO3)2.4H | 04/18/2006 |
| 7018858 | Light absorbing layer producing method A method of producing a light absorbing layer of CIGS for a solar cell by forming a precursor film on a back electrode and treating the precursor film in a selenium atmosphere, wherein an alkali layer is formed on the back electrode by dipping the back electrode in ... | 03/28/2006 |
| 7014748 | Anodizing method, substrate processing method, and substrate manufacturing method This invention is to reduce the influence of a gas generated by an anodizing reaction. A silicon substrate (101) to be processed is horizontally held. A negative electrode (129) is arranged on the upper side of the silicon substrate (101), and a... | 03/21/2006 |
| 7005056 | Method for inhibiting corrosion of alloys employing electrochemistry A method for inhibiting corrosion, e.g., pitting corrosion, of alloys is provided. Particularly, the method comprises contacting at least a portion of a surface of the alloy with an aqueous solution comprising a salt of one or more rare earth elements selected from ... | 02/28/2006 |
| 6994779 | Energy enhanced process for treating a conductive surface and products formed thereby The disclosure relates to a process for forming a deposit on the surface of a metallic or conductive surface. The process employs an energy enhanced process to deposit a silicate containing coating or film upon a metallic or conductive surface. ... | 02/07/2006 |
| 6974532 | Method for producing adherent coatings of calcium phosphate phases on titanium and titanium alloy substrates by electrochemical deposition A method for forming a highly adherent coating of a desired calcium phosphate phase on titanium-based substrates for use as orthopedic and dental implants. The calcium phosphate phase coating is electrochemically deposited onto the substrate from a metastable calciu... | 12/13/2005 |
| 6936534 | Method for the post-etch cleaning of multi-level damascene structures having underlying copper metallization A method for the post-etch cleaning of multi-level, damascene structures which minimizes, or substantially prevents, localized corrosion of underlying copper metallization comprises subjecting an intermediate structure in the fabrication of a multi-level, damascene ... | 08/30/2005 |
| 6929970 | Process for preparing nano-porous metal oxide semiconductor layers A process for preparing a layer of a nano-porous metal oxide semiconductor comprising the steps of: (i) providing metal oxide semiconductor nano-particles prepared by a wet precipitation process, (ii) heating said nano-particles at a temperature in the range of 250 ... | 08/16/2005 |
| 6919012 | Method of making a composite article comprising a ceramic coating A ceramic coating is formed on a conductive article by immersing a first anodic electrode, including the conductive article, in an electrolyte comprising an aqueous solution of alkali metal hydroxide and an alkali metal silicate, providing a second cathodic electrod... | 07/19/2005 |
| 6911139 | Process for treating a conductive surface and products formed thereby The disclosure relates to a process for forming a deposit on the surface of a metallic or conductive surface. The process employs an electrolytic process to deposit a silicate containing coating or film upon a metallic or conductive surface. ... | 06/28/2005 |
| 6896785 | Process and device for forming ceramic coatings on metals and alloys, and coatings produced by this process There is disclosed a process and apparatus for carrying out plasma electrolytic oxidation of metals and alloys, forming ceramic coatings on surfaces thereof at a rate of 2-10 microns per minute. The process comprises the use of high-frequency current pulses of a cer... | 05/24/2005 |
| 6893551 | Process for forming coatings on metallic bodies and an apparatus for carrying out the process A process for forming oxide based dense ceramic composite coatings on reactive metal and allow bodies involves suspension of at least two reactive metal or alloy bodies in a non-metallic, non-conducting, non-reactive chamber in such a way that it causes either parti... | 05/17/2005 |
| 6863987 | Titanium resistant to discoloration in atmospheric environment and process of production of same Titanium resistant to discoloration in an atmospheric environment characterized by having an average carbon concentration of 14 at % or less in a range to a depth of 100 nm from the surface and having an oxide film of a thickness of 12 to 40 nm at its surface. Titan... | 03/08/2005 |
| 6863792 | Method of making electrochemical detectors based on iridium oxide A conductive oxide solid formed through an electrochemical process. The resulting solid predominantly contains oxides of the highest oxidation state. Additionally, the solid can be thick, uniform, stable across a wide range of acidity and temperature, fully hydrated... | 03/08/2005 |
| 6860982 | Zinc oxide with acicular structure, process for its production, and photoelectric conversion device A process for producing a zinc oxide acicular structure by growing an acicular zinc oxide on a substrate, the process comprising the steps of holding the substrate in an electrolytic solution in which at least zinc ions are present, and forming zinc oxide on the sub... | 03/01/2005 |
| 6814851 | Method and apparatus for an anodic treatment A method and apparatus for anodizing a component. The component is placed in a container having a supply port, a drain port and a supply passage. The supply passage faced on a surface of the component to be anodized. A reaction medium is supplied from the supply por... | 11/09/2004 |
| 6808613 | Oxidizing electrolytic method for obtaining a ceramic coating at the surface of a metal Process for obtaining a ceramic coating on the surface of a metal having semiconducting properties, such as aluminium, titanium, magnesium, hafnium, zirconium and their alloys, by a physico-chemical transformation reaction of the treated metal. This process consists... | 10/26/2004 |