52nd week of 2008 patent applcation highlights part 44 |
Patent application number | Title | Published |
20080318089 | Fast Locally Resolved Electrochemical Impedance Spectroscopy in Polymer Electrolyte Fuel Cells - A fuel cell, such as a polymer electrolyte fuel cell, includes an anode reactant supply plate, an anode current collector, a cathode reactant supply plate, and a cathode current collector. At least one of the anode reactant supply plate, the cathode reactant supply plate, the anode current collector and the cathode current collector is electrically separated into a number of segments, wherein each segment of at least a subgroup of segments is separately connected to an electronic drive and analysis circuitry which performs in parallel impedance measurement in a frequency range of 0.1 mHz to 50 kHz of the respective segments. | 2008-12-25 |
20080318090 | Method For Operating a Direct Oxidation Fuel Cell and Corresponding Arrangement - The invention relates to a method for operating a direct oxidation fuel cell in which the fuel cell is supplied generally with methanol via a transport device for the fuel. The invention likewise relates to a corresponding arrangement comprising a direct oxidation fuel cell, a fuel reservoir and at least one device for transporting the fuel through the fuel cell. | 2008-12-25 |
20080318091 | METHOD AND SYSTEM OF OPERATING A HIGH-TEMPERATURE FUEL CELL - The invention relates to a method and to a system of operating a high-temperature fuel cell. At least one fuel cell, a reformer, an afterburner and a heat exchanger are present in the system. The total efficiency should be increased with the invention in accordance with the object set. In accordance with the invention, for this purpose, fresh air supplied to the fuel cell(s) at the cathode side is preheated in multiple stages by heat from the afterburning and from the heated air dissipated from the fuel cell(s) at the cathode side by means of a high-temperature heat exchanger. | 2008-12-25 |
20080318092 | Co-production of hydrogen and electricity in a high temperature electrochemical system - A high temperature electrochemical system, such as a solid oxide fuel cell system, generates hydrogen and optionally electricity in a fuel cell mode. At least a part of the generated hydrogen is separated and stored or provided to a hydrogen using device. A solid oxide regenerative fuel cell system stores carbon dioxide in a fuel cell mode. The system generates a methane fuel in an electrolysis mode from the stored carbon dioxide and water by using a Sabatier subsystem. Alternatively, the system generates a hydrogen fuel in an electrolysis mode from water alone. | 2008-12-25 |
20080318093 | Hydrogen recirculation apparatus for fuel cell vehicle and method thereof - The present invention provides a hydrogen recirculation apparatus for a fuel cell vehicle, a fuel tank storing hydrogen, a high-pressure regulator for regulating pressure of hydrogen, a low-pressure regulator for regulating pressure of hydrogen, and a solenoid valve for opening/closing a passage from the fuel tank to the pressure regulators are provided, the apparatus comprising: a fuel cell stack having an inlet and an outlet; a hydrogen recirculation blower; a hydrogen recirculation line connecting the outlet of the fuel cell stack and the hydrogen recirculation blower for recirculating residual hydrogen discharged from the outlet of the fuel cell; a water separator provided in the hydrogen recirculation line at a position between the hydrogen recirculation blower and the outlet of the fuel cell stack, the water separator serving to separate condensed water generated in the hydrogen recirculation line; and a humidifier/heat exchanger for humidifying and heat-exchanging dry hydrogen flowing through the low-pressure regulator and recirculated hydrogen flowing through the hydrogen recirculation blower, the humidifier/heat exchanger utilizing the condensed water flowing from the water separator as a source of humidity, wherein the water heat-exchanged with hydrogen by the humidifier/heat exchanger is reused for cooling the hydrogen recirculation blower, and the water used in the hydrogen recirculation blower, the temperature of which is increased by the operation of the hydrogen recirculation blower, is mixed with water flowing from the water separator before introduction into humidifier/heat exchanger. | 2008-12-25 |
20080318094 | METHODS FOR CONVERSION OF A LIGHT ALKANE TO A HIGHER HYDROCARBON, METHOD OF DEHYDROGENATING AN ALKANE, AND METHOD OF REACTIVATING A CATALYST LAYER - A controllable proton exchange reactive membrane comprising a proton exchange membrane, at least two catalyst layers disposed on opposing sides of the proton exchange membrane, and a power source operably coupled to the at least two catalyst layers. A direction and magnitude of flow of hydrogen through the proton exchange reactive membrane is controlled by modulating the power source across the proton exchange membrane, thereby enabling hydrogen to be transported in either direction across the proton exchange reactive membrane. By controlling the transport of hydrogen, the extent of a homologation reaction is enhanced. A proton exchange reactive membrane reactor comprising the proton exchange reactive membrane is also disclosed. A method of producing a higher hydrocarbon from a light alkane is disclosed, as is a method of regenerating a catalyst layer. | 2008-12-25 |
20080318095 | Hydrogen generating apparatus and fuel cell power generation system - A hydrogen generating apparatus is disclosed, which can provide a constant amount of hydrogen regardless of its orientation. The hydrogen generating apparatus can include an electrolyte bath, which contains an electrolyte solution; a free-moving first electrode, which is positioned inside the electrolyte bath, and which generates electrons; a free-moving second electrode, which is positioned inside the electrolyte bath, and which receives the electrons to generate hydrogen; a spacer positioned between the first electrode and the second electrode; and a control unit, which is connected with the first electrode and the second electrode, to control an amount of electrons traveling from the first electrode to the second electrode. | 2008-12-25 |
20080318096 | Hydrogen generating apparatus and fuel cell power generation system - A hydrogen generating apparatus can include an absorbent layer that absorbs an aqueous solution, a metal membrane deposited on either side of the absorbent layer such that the absorbent layer is interposed between the metal membranes, and a support layer formed on one side of one of the metal membranes that transports hydrogen generated by a reaction between the aqueous solution and the metal membrane. A batch type reaction may thus be implemented between the aqueous solution and the metal membranes, so that the reaction can be controlled to provide an even rate of hydrogen generation. Possible disturbances to the reaction resulting from by-products can be prevented, and since there is no additional equipment required, the volume and weight of the fuel cell power generation system can be reduced, and the extra power consumption by the additional equipment can be avoided. | 2008-12-25 |
20080318097 | ELECTROCHEMICAL CELL FOR OXIDATION OF AMMONIA AND ETHANOL - An electrochemical cell for causing a reaction that produces hydrogen, the electrochemical cell comprising: a first electrode comprising: at least one layered electrocatalyst formed of at least one active metal layer deposited on a carbon support, wherein the at least one active metal layer is active to a target species; a second electrode comprising a conductor; a basic electrolyte; ammonia, ethanol, or combinations thereof; and electrical current in communication with the first electrode. | 2008-12-25 |
20080318098 | Fuel Cell System and Driving Method of Fuel Cell System - A fuel cell system | 2008-12-25 |
20080318099 | Apparatus for preventing carbon corrosion at cathod in fuel cell - The present invention provides an apparatus for effectively preventing carbon corrosion from occurring at the cathode of a fuel cell. The present apparatuses include an air blower supplying air from an air supply source to a fuel cell; a fuel cell receiving air from the air blower to generate electricity by a chemical reaction; an air discharge pipe through which residual air remaining after oxygen of the air is consumed for chemical reaction in the fuel cell is discharged; a pressure sensor provided in the air discharge pipe for detecting air pressure in the fuel cell; an air discharge solenoid valve provided in the air discharge pipe for controlling air flow of the air discharge pipe; and a controller controlling operation of the air blower and the air discharge solenoid valve by receiving a signal detected by the pressure sensor wherein the controller detects the air pressure through the pressure sensor to allow the air blower to supply air to the fuel cell until the air pressure reaches a predetermined pressure and then closes the air discharge solenoid valve until the oxygen in the fuel cell is completely exhausted, thereby preventing the formation of hydrogen/oxygen interface at the anode of the fuel cell. | 2008-12-25 |
20080318100 | FUEL CELL ASSEMBLY MANIFOLD HEATER FOR IMPROVED WATER REMOVAL AND FREEZE START - An apparatus for heating a fuel cell assembly is disclosed, wherein a means for heating is disposed in a manifold of the fuel cell assembly and the means for heating causes the manifold to be heated to militate against fluid condensation and ice formation in the fuel cell assembly. | 2008-12-25 |
20080318101 | Intelligent MEA for fuel cell - The present invention provides an intelligent MEA for fuel cell including means for easily measuring the voltage of unit cells and means for preventing heat transfer from an outside low-temperature heat source to a catalyst layer of the MEA during operation of the fuel cell stack at low temperature. | 2008-12-25 |
20080318102 | Bipolar Plate for Fuel Cell Comprising a Connecting Channel - The invention concerns a bipolar plate for fuel cell, of the type comprising a cathode bipolar half-plate and an anode bipolar half-plate attached to each other, each bipolar half-plate ( | 2008-12-25 |
20080318103 | Fuel Cell System - Provided is a fuel cell system including a polymer electrolyte fuel cell with improved durability, which is capable of suppressing a phenomenon in which a polymer electrolyte membrane is decomposed and degraded. In the fuel cell system including the polymer electrolyte fuel cell including: a membrane electrode assembly including a polymer electrolyte membrane with hydrogen ion conductivity, and a fuel electrode and an oxidant electrode sandwiching the polymer electrolyte membrane; a first separator plate for supplying and discharging a fuel gas to and from the fuel electrode; and a second separator plate for supplying and discharging an oxidant gas to and from the fuel electrode, a metal ion supplying means for supplying metal ions, which are stable in an aqueous solution, to the inside of the membrane electrode assembly in an amount equivalent to 1.0 to 40.0% of the ion exchange group capacity of the polymer electrolyte membrane is disposed. | 2008-12-25 |
20080318104 | Electrolyte solution for hydrogen generating apparatus and hydrogen generating apparatus comprising the same - The invention provides an electrolyte solution for hydrogen generating apparatus including water; at least one ionizing compound; and at least one chelating agent. The electrolyte solution for hydrogen generating apparatus according to the invention can increase hydrogen generation time and an amount of hydrogen generation by controlling hydrogen generation rate and by reducing an amount of metal hydroxide generation. | 2008-12-25 |
20080318105 | Fuel Cell Assembly - A fuel cell assembly comprising a fuel cell incorporated in a composite laminate structure, the composite laminate structure comprising a core material within which the fuel cell is embedded. The fuel cell comprises an electrolytic membrane having first and second faces, and first and second electrodes disposed adjacent to the respective faces of the electrolytic membrane. The first and second electrodes are connectable to an electric circuit. The core material provides support to the fuel cell embedded therein and fluid communication through the core material, to enable the passage of one or more fluids to the first and second electrodes. | 2008-12-25 |
20080318106 | Catalyst for a cathode of a mixed reactant fuel cell, membrane-electrode assembly for a mixed reactant fuel cell including the same, and mixed reactant fuel cell system including the same - The cathode catalyst for a mixed reactant fuel cell includes a mixed catalyst that includes a first catalyst including a Ru—Ch1 compound where Ch1 is a chalcogens selected from the group consisting of S, Se, Te, and combinations thereof, and a second catalyst including a Pt—Ch2 compound where Ch2 is a chalcogens selected from the group consisting of S, Se, Te, and combinations thereof. The cathode catalyst can improve excellent power characteristics of a fuel cell due to excellent catalyst activity and selectivity. | 2008-12-25 |
20080318107 | Composite electrolyte membrane, production method thereof, membrane-electrode assembly, and fuel cell - A composite electrolyte membrane uses a metal-oxide hydrate which has a number of hydration water molecules of 2.7 or more and 10 or less and/or which is in the form of particles having a particle diameter of 1 nm or more and 10 nm or less. The composite electrolyte membrane exhibits its expected original performance, has both a high proton conductivity and a low methanol permeability, and provides a high-output membrane electrolyte assembly for a fuel cell. | 2008-12-25 |
20080318108 | Solid Electrolyte, Membrane and Electrode Assembly, and Fuel Cell - A solid electrolyte having an aromatic ring, wherein a sulfonic acid group represented by the following formula (1) bonds to the aromatic ring. | 2008-12-25 |
20080318109 | Method for the production of a sulfonated poly (1, 3, 4-oxadiazole) polymer - A sulfonated poly(1,3,4-oxadiazole) polymer is produced by producing of a solution of hydrazine sulfate salt and a non-sulfonated dicarboxylic acid or derivative thereof in polyphosphoric acid; heating the solution under an inert gas atmosphere; and precipitating sulfonated poly(1,3,4-oxadiazole) polymer in a basic solution. | 2008-12-25 |
20080318110 | THERMOPLASTIC BIPOLAR PLATE - A method of manufacturing a fuel cell bipolar plate comprising first and second thermoformed plates. The thermoformed plates comprise at least one thermoplastic polymer. The method includes providing film cast resin mixture and forming it into a substantially flat sheet having first and second opposing major surfaces. The sheet may be preheated to a predetermined temperature and thermoformed thereby creating separator plates of a desired size and shape. First and second plates are joined to form an integral bipolar plate. | 2008-12-25 |
20080318111 | FUEL CELL - A fuel cell including a plurality of first fuel cell modules is provided. Each of the fuel cell modules includes a cathode current collector, an anode current collector, a membrane electrode assembly (MEA) and a flow channel cover plate. The anode current collector is disposed above the cathode current collector. The MEA is disposed between the anode current collector and the cathode current collector. The flow channel cover plate is disposed on the anode current collector, for collecting a cathode product. A top side of the flow channel cover plate is adapted to transport a cathode reactant, and a bottom side of the flow channel cover plate is adapted to transport an anode reactant. In addition, the first fuel cell modules are stacked in a manner that the anode current collector faces upwards. | 2008-12-25 |
20080318112 | FUEL CELL MODULE - A fuel cell module including a membrane electrode assembly (MEA), a pressing plate, an anode collector, an anode flow channel plate, a cathode collector, and a cathode flow channel plate is provided. The MEA has a protrusion, and the pressing plate presses an edge of a cathode of the MEA. The pressing plate has a first opening to expose the protrusion. The anode collector is disposed on an anode of the MEA. The anode flow channel plate is disposed on anode collector. The anode collector is disposed between the anode and the anode flow channel plate. The cathode flow channel plate faces the cathode collector disposed on the cathode and the pressing plate to form a flow channel between an inner surface of the cathode flow channel plate and the cathode collector. The cathode flow channel plate has a concave portion corresponding to the protrusion. | 2008-12-25 |
20080318113 | FUEL CELL APPARATUS - A fuel cell apparatus including a reaction unit for performing a chemical reaction, at least one fan for providing an airflow, and an airflow guiding device is provided. The airflow guiding device is connected to the fan and the reaction unit. The airflow guiding device includes an airflow rectification segment and a first airflow separation segment. The airflow rectification segment is connected to the fan and has one flow channel. The first airflow separation segment is connected to the airflow rectification segment and disposed between the airflow rectification segment and the reaction unit. A number of flow channels inside the first airflow separation segment is N | 2008-12-25 |
20080318114 | SEPARATOR FOR FUEL CELL AND ITS MANUFACTURING METHOD AND FUEL CELL STACK USING THE SEPARATOR - A separator for a fuel cell, including: a plate; a first flow channel having a first depth on a first side of the plate; a first inlet hole coupled to the first flow channel; a first outlet hole coupled to the first flow channel; a second flow channel on a second side of the plate; a second inlet hole coupled to the second flow channel; a second outlet hole coupled to the second flow channel; and a bridge unit having a second depth less than the first depth at a region where a direction of flow of at least one of the first inlet hole or the first outlet hole and a direction of flow of the second flow channel cross. | 2008-12-25 |
20080318115 | FLOW CHANNEL PLATE - A flow channel plate suitable for use in a fuel cell including a plate body and at least a group of flow guiding blocks is provided. The plate body has a first side wall and a second side wall opposite to the first side wall. The first side wall has at least an inlet and the second side wall has at least an outlet. The group of flow guiding blocks is disposed in the plate body and is adjacent to the first side wall, and includes a plurality of flow guiding blocks. One of the flow guiding blocks is a first flow guiding block aligned with the inlet. The rest of flow guiding blocks are arranged into m rows between the first flow guiding block and the second side wall and the first row thereof is adjacent to the first flow guiding block. Where m is a nature number. | 2008-12-25 |
20080318116 | GAS DIFFUSION ELECTRODE SUBSTRATE, GAS DIFFUSION ELECTRODE AND PROCESS FOR ITS PROCUTION, AND FUEL CELL - There is provided a gas diffusion electrode substrate comprising a glass nonwoven fabric obtained by adhering a binder containing an acrylic resin and/or vinyl acetate resin to glass fibers. | 2008-12-25 |
20080318117 | Battery assembly including an electrolyte management system - A battery assembly may include a battery and a battery housing. The battery may include an electrolyte vent to provide a pressurized electrolyte discharge during an electrolyte discharge event. The battery housing may contain the battery and may include an electrolyte control member to dissipate energy from and inhibit dispersion of the pressurized electrolyte discharge from the electrolyte vent during the electrolyte discharge event. | 2008-12-25 |
20080318118 | Metering schemes for reducing thermal spread in a battery pack - A battery pack assembly comprising a plurality of battery packs each including a plurality of cells and at least one metering plate for metering the quantity of air flowing respectively through each of the air paths of the battery packs. An inlet metering plate is disposed upstream of the battery packs to meter the uneven flow of cooling air generated by the inlet manifold. The inlet metering plate utilizes a plurality of apertures, which can vary in size and shape, to produce equal streams of cooling air to cool all the battery packs to a substantially uniform temperature. An outlet metering plate can be disposed downstream of the battery packs to meter the flow of outgoing cooling air through the channels of the upper cylindrical sections to produce equal air flow around all of the cells in a stack to cool all of the cells to a substantially uniform temperature. | 2008-12-25 |
20080318119 | Battery Pack - In a battery pack, battery pack flange portions are provided at opposing sides of a battery assembly along a stacking direction of battery modules, so as to project laterally. The battery module flange portions are interposed between an upper case flange portion and a lower case flange portion when the upper case flange portion and the lower case flange portion are overlaid, and fastened and fixed concurrently by bolts. The bolts are also used in fixing the battery pack to a vehicle. With this configuration, a battery pack that can reduce assembly steps with the bolts and the like to improve efficiency in the fastening work can be provided. | 2008-12-25 |
20080318120 | Power storage unit - A power storage unit has: a plurality of power storage modules each constituted of a power generation element and a power-generation-element-case containing the power generation element and disposed adjacent to each other, and a case containing the power storage modules and an insulative fluid. At least one groove is formed at the power-generation-element-case of each power storage module such that the power-generation-element-case breaks at the groove in response to an excessive increase in the pressure in the power-generation-element-case. The groove is formed in a portion of the power-generation-element-case that does not face any other power storage module. | 2008-12-25 |
20080318121 | Vehicle power storage unit and vehicle - A vehicle power storage unit, has: a power storage assembly; a coolant for cooling the power storage assembly; a casing having a coolant inlet through which the coolant is filled into the casing and containing the coolant and the power storage assembly; a gas-discharge pipe through which gas produced by the power storage assembly is discharged from the casing to the outside of a passenger compartment or a trunk of the vehicle; and a first pressure-release valve which is provided at the coolant inlet and through which the pressure in the casing is released to the outside when gas is produced by the power storage assembly. | 2008-12-25 |
20080318122 | LARGE FORMAT LITHIUM-ION CELL AND ITS USES THEREOF - This invention is directed to a battery pack with a high energy density and a large format prismatic lithium-ion cell comprising (1) at least one positive electrode, (2) at least one negative electrode, (3) a non-aqueous electrolyte, and (4) a homogeneous microporous membrane which comprises (a) a hot-melt adhesive, (b) an engineering plastics, (c) optionally a tackifier and (d) a filler having an average particle size of less than about 50 μm. The resulting battery pack can be used as power source for applications such as electric vehicles (EV), hybrid electric vehicles (HEV), power-assist HEV (P-HEV), and standby power stations. | 2008-12-25 |
20080318123 | Lithium cell - A primary cell having an anode comprising lithium and a cathode comprising iron disulfide (FeS | 2008-12-25 |
20080318124 | BATTERY - A battery capable of ensuring storage characteristics and overcharge characteristics is provided. The battery comprising a cathode, an anode, and an electrolytic solution. The cathode has a cathode current collector and a cathode active material layer provided on the cathode current collector. The cathode active material layer includes an aromatic compound having three or more benzene rings. The electrolytic solution includes at least one of an ester carbonate containing a halogen and an ester carbonate containing an unsaturated bond. | 2008-12-25 |
20080318125 | Positive Electrode for Alkaline Storage Battery and Alkaline Storage Battery - There are provided a low-cost positive electrode for an alkaline storage battery which retains an excellent current collectivity over a long period of time and a low-cost alkaline storage battery which retains an excellent charge/discharge efficiency over a long period of time. A positive electrode for an alkaline storage battery according to the present invention has a positive electrode substrate including a resin skeleton made of a resin and having a three-dimensional network structure and a nickel coating layer made of nickel and coating the resin skeleton and also having a void portion in which a plurality of pores are coupled in three dimensions and a positive electrode active material containing nickel hydroxide particles and filled in the void portion of the positive electrode substrate. Among them, the nickel coating layer has an average thickness of not less than 0.5 μm and not more than 5 μm. The proportion of the nickel coating layer to the positive electrode substrate is not less than 30 wt % and not more than 80 wt %. The filling amount of the positive electrode active material is not less than 3 times and not more than 10 times the weight of the positive electrode substrate. | 2008-12-25 |
20080318126 | CATHODE MIX AND NONAQUEOUS ELECTROLYTE BATTERY - A cathode mix for nonaqueous electrolyte secondary batteries includes a cathode active material having an olivine crystal structure, and polyvinyl pyrrolidone. Also, a nonaqueous electrolyte secondary battery includes: a cathode; an anode; and a nonaqueous electrolyte, wherein the cathode includes: a cathode active material having an olivine crystal structure; and polyvinyl pyrrolidone. | 2008-12-25 |
20080318127 | Anode material for lithium batteries - Primary and secondary Li-ion and lithium-metal based electrochemical cell systems. The suppression of gas generation is achieved through the addition of an additive or additives to the electrolyte system of respective cell, or to the cell itself whether it be a liquid, a solid- or plasticized polymer electrolyte system. The gas suppression additives are primarily based on unsaturated hydrocarbons. | 2008-12-25 |
20080318128 | Lithium alloy/sulfur batteries - Electrochemical cells including anode compositions that may enhance charge-discharge cycling efficiency and uniformity are presented. In some embodiments, alloys are incorporated into one or more components of an electrochemical cell, which may enhance the performance of the cell. For example, an alloy may be incorporated into an electroactive component of the cell (e.g., electrodes) and may advantageously increase the efficiency of cell performance. Some electrochemical cells (e.g., rechargeable batteries) may undergo a charge/discharge cycle involving deposition of metal (e.g., lithium metal) on the surface of the anode upon charging and reaction of the metal on the anode surface, wherein the metal diffuses from the anode surface, upon discharging. In some cases, the efficiency and uniformity of such processes may affect cell performance. The use of materials such as alloys in an electroactive component of the cell have been found to increase the efficiency of such processes and to increase the cycling lifetime of the cell. For example, the use of alloys may reduce the formation of dendrites on the anode surface and/or limit surface development. | 2008-12-25 |
20080318129 | Fuel Cell Cathodes - The present invention relates to a method of producing a fuel cell cathode, fuel cell cathodes, and fuel cells comprising same. | 2008-12-25 |
20080318130 | ELECTRODE AND LITHIUM-ION SECONDARY BATTERY - An electrode is provided as one that can suppress generation of hydrogen and that has sufficiently low impedance. The electrode has an aluminum current collector, an aluminum hydroxide layer provided on the aluminum current collector, and an active material layer containing lithium-containing metal oxide and provided on the aluminum hydroxide layer. The thickness of the aluminum hydroxide layer is not more than 50 nm. | 2008-12-25 |
20080318131 | CATHODE ACTIVE MATERIAL FOR NONAQEOUS ELECTROLYTE BATTERY, METHOD OF PRODUCING THE SAME AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A cathode active material for nonaqueous electrolyte secondary battery is provided. The cathode active material includes: composite oxide particles containing at least lithium and cobalt; a coating layer disposed on at least a part of the surface of said composite oxide particles and including an oxide containing lithium and at least one coating element selected from nickel and manganese; and a surface layer disposed on at least a part of said coating layer and including an oxide containing at least one element selected from among lanthanoids. | 2008-12-25 |
20080318132 | COMPOSITIONS AND METHODS FOR PROTECTION OF ACTIVE METAL ANODES AND POLYMER ELECTROLYTES - Electrochemical structures with a protective interlayer for prevention of deleterious reactions between an active metal electrode and polymer electrolytes, and methods for their fabrication. The structures may be incorporated in battery cells. The interlayer is capable of protecting an active metal anode and a polymer electrolyte from deleterious reaction with one another while providing a high level of ionic conductivity to enhance performance of a battery cell in which the structure is incorporated. The interlayer has a high ionic conductivity, at least 10 | 2008-12-25 |
20080318133 | BATTERY ELECTRODE - A battery electrode, includes: a collector; and an active material layer formed on a surface of the collector and including: an active material, and a conductive additive having a bulk density which is gradually decreased in a direction from a collector side of the active material layer to a surface side of the active material layer. | 2008-12-25 |
20080318134 | Polymer Membranes - The invention relates to novel organic/inorganic hybrid membranes which have the following composition: a polymer acid containing —SO | 2008-12-25 |
20080318135 | Hybrid Battery - Disclosed herein is a hybrid battery using an electrochemically stable electrolyte composition and electrodes suitable for use in the electrolyte composition. The hybrid battery is non-toxic and highly stable, and has improved high-current charge/discharge characteristics. | 2008-12-25 |
20080318136 | NON-AQUEOUS ELECTROLYTES - Non-aqueous electrolytes have poly(ethyleneoxide) siloxane or poly(ethyleneoxide) phosphate, a salt, and an electrode stabilizing additive. Electrochemical cells using such electrolytes may be prepared and exhibit improved charge carrying capacity. | 2008-12-25 |
20080318137 | Lithography masks for improved line-end patterning - In one embodiment, a mask for use in semiconductor processing comprises a first region formed from a first material that is primarily opaque, a second region formed from a second material that is primarily transmissive, and a third region in which at least a portion of the second material is removed to generate a phase shift in radiation applied to the mask. | 2008-12-25 |
20080318138 | EUV Mask and Method for Repairing an EUV Mask - An EUV mask comprises a substrate, a reflective multilayer on the substrate, a phase-shifting material disposed above the multilayer in at least one first portion of the substrate, and a masking material disposed above the multilayer in second portions of the substrate and corresponding to mask patterns of an EUV mask. There is also provided a method for repairing an EUV mask including a substrate, a reflective multilayer on the substrate and at least one defect beneath or within the multilayer. The method includes the steps of determining the position of a defect area of the substrate, in which a phase-shift difference of an exposure radiation is caused by the defect, and depositing a phase-shifting material above the multilayer in at least one first portion of the substrate, the first portion at least partially comprising the defect area. | 2008-12-25 |
20080318139 | Mask Blank, Photomask and Method of Manufacturing a Photomask - Mask blanks of the invention include an absorber layer, an anti-reflective layer disposed over the absorber layer, and a hard mask layer disposed over the anti-reflective layer. The absorber layer is absorbent at an exposure wavelength and is reflective at an inspection wavelength. The inspection wavelength is greater than or equal to the exposure wavelength. The anti-reflective layer is not reflective at the inspection wavelength. None of the main constituents of the hard mask layer has an atomic number greater than 41. The mask blank may be a reflective EUVL mask blank or a transparent mask blank. | 2008-12-25 |
20080318140 | REFLECTIVE MASK BLANK FOR EUV LITHOGRAPHY AND SUBSTRATE WITH FUNCTIONAL FILM FOR THE SAME - To provide an EUV mask blank of which the decrease in the reflectance during EUV exposure is suppressed, and a substrate with a functional film to be used for production of such an EUV mask blank. | 2008-12-25 |
20080318141 | METHOD OF PREPARING TONER AND TONER PREPARED USING THE METHOD - A method of preparing toner, the method including preparing a latex for a core by polymerizing a composition for a core including a macromonomer having a hydrophilic group, a hydrophobic group and at least one reactive functional group, at least one polymerizable monomer, and a wax; agglomerating the latex for a core by adding a pigment dispersion dispersed by the macromonomer and an inorganic salt to the prepared latex for a core; and coating the agglomerated latex for a core using a latex for a shell layer, wherein the latex for a shell layer is prepared by polymerizing a composition for a shell layer including at least one polymerizable monomer, a macroinitiator having polydimethyl siloxane units, and a macromonomer, and toner prepared according to the method. | 2008-12-25 |
20080318142 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, METHOD FOR PREPARING THE ELECTROPHOTOGRAPHIC PHOTORECEPTOR, AND IMAGE FORMING METHOD AND APPARATUS AND PROCESS CARTRIDGE USING THE ELECTROPHOTOGRAPHIC PHOTORECEPTOR - A photoreceptor including an electroconductive substrate; a photosensitive layer, which is located overlying the electroconductive substrate and which includes a charge generation material, a charge transport material having no radical polymerizability, a binder resin having no radical polymerizability, and a crosslinked polymer including a unit obtained from a first radically polymerizable monomer having three or more functional groups and no charge transport structure and a unit obtained from a second radically polymerizable monomer having a charge transport structure; and an outermost layer, which is located on the photosensitive layer and which includes a crosslinked polymer including a unit obtained from a third radically polymerizable monomer having three or more functional groups and no charge transport structure and a unit obtained from a fourth radically polymerizable monomer having a charge transport structure. An image forming method and apparatus, and a process cartridge using the photoreceptor. | 2008-12-25 |
20080318143 | IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND PROCESS CARTRIDGE - An image forming apparatus including a charging unit, an exposing unit, a developing unit, a transferring unit, and a fixing unit. A toner containing a colorant and a binder resin which contains a polyester resin (A) and a polyester resin (B) having a softening point 10° C. or more higher than that of the polyester resin (A); the polyester resin (A) is a (meth)acrylic acid-modified rosin derived resin having a polyester unit obtained by polycondensation of an alcohol component, which contains 65 mol % or more of 1,2-propanediol in a dihydric alcohol component, and a carboxylic acid component containing a (meth)acrylic acid-modified rosin; the polyester resin (B) is a purified rosin derived resin having a polyester unit obtained by polycondenstation of an alcohol component, which contains a total of 70 mol % or more of 1,2-propanediol and 1,3-propanediol in a dihydric alcohol component, and a carboxylic acid component containing purified rosin. | 2008-12-25 |
20080318144 | TONER, DEVELOPER, AND IMAGE FORMING METHOD - To provide a toner including: a toner material that contains at least a binder resin, a pigment, and a pigment dispersant, wherein the pigment dispersant has an acid value of 20 mgKOH/g to 50 mgKOH/g and an amine value of 1 mgKOH/g to 50 mgKOH/g, and wherein the pigment contains at least aluminum phthalocyanine. | 2008-12-25 |
20080318145 | EXTERNAL SURFACE ADDITIVE COMPOSITIONS - A toner having at least one binder, at least one colorant and external additives. The external additives include at least one fluoropolymer. An electrophotographic image forming machine and method includes the toner with at least one fluoropolymer. | 2008-12-25 |
20080318146 | Imaging member having high charge mobility - The presently disclosed embodiments are directed to charge transport layers useful in electrostatography. More particularly, the embodiments pertain to an electrostatographic imaging member comprising a charge transport layer that exhibits improved charge mobility transport and comprises novel terphenyl compounds. | 2008-12-25 |
20080318147 | ELECTROPHOTOGRAPHIC TONER, AND IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS EMPLOYING THE SAME - An objective is to provide an electrophotographic photoreceptor having a protective layer in which no unevenness is generated in a coated layer even though a coating solution containing a large addition amount of metal oxide is coated, mechanical strength of a protective layer is high; productivity is high with long life of the coating solution because of no sedimentation of metal oxide, electrical resistivity and mechanical strength are satisfactory, and metal oxide generating no coated layer defect together with no light scattering caused by dispersion failure is dispersed, and also to provide an image forming method and an image forming apparatus employing the electrophotographic photoreceptor. Also disclosed is an electrophotographic photoreceptor possessing a conductive support, at least a photosensitive layer and a protective layer, wherein the protective layer comprises rutile type titanium dioxide and anatase type titanium dioxide. | 2008-12-25 |
20080318148 | TONER AND METHOD FOR PRODUCING THE SAME AND DEVELOPER - A toner containing base particles produced by dissolving and/or dispersing a toner material in an organic solvent so as to prepare a toner material solution, and emulsifying and/or dispersing the toner material solution in an aqueous medium, wherein the toner material contains a binder resin and a releasing agent, the binder resin contains a polyester resin, and the releasing agent is a hydrocarbon wax which is modified with a carboxylic acid or carboxylic anhydride. | 2008-12-25 |
20080318149 | Marking liquid - A liquid electrostatographic toner or liquid ink jet ink prepared by the steps of heating a marking particle mix of particles of a resin and a colourant blend in a carrier liquid to a temperature between about the first softening point of the resin and about the second softening point of the resin, maintaining the temperature of the heated marking particle mix for a selected period of time, cooling the marking particle mix to room temperature, and mixing the marking particle mix with high shear. The particle mix can be produced by coarse grinding in a ball mill. The resultant toner or ink has an improved Newtonian like flow behaviour, improved electrical properties, reduced sedimentation and agglomeration and significantly improved optical density and reduced background. | 2008-12-25 |
20080318150 | Paper Compositions, Imaging Methods and Methods for Manufacturing Paper - Paper compositions are provided that include an amine group-containing cationic polymeric material and a binder material. The paper compositions are particularly useful as receiver materials for images formed by electrophotographic imaging methods utilizing liquid developers. Also described are imaging methods that utilize the paper compositions as receiver materials and methods for manufacturing the paper. | 2008-12-25 |
20080318151 | Preparation method of latex for toner and preparation method of toner from the same - A method for preparing latex for a toner includes heating a mixture of distilled deionized water and poly (ethylene glycol)-ethyl ether methacrylate (PEG-EEM) with stirring, adding a monomer mixture, 1-dodecanethiol and an ester wax to the mixture, dispersing the mixture with ultrasonic vibration, adding potassium persulfate (KPS) to the dispersion and allowing to react for 4 to 6 hours, and allowing the reaction mixture to cool with stirring. The dry toner prepared by the method enables easy control over the molecular weight of latex, has superior durability and excellent low-temperature fixation, contains a small amount of wastewater and is composed of small-diameter particles, thus being suitable for use in high-definition printers. | 2008-12-25 |
20080318152 | Substrate for Exposure, Exposure Method and Device Manufacturing Method - A substrate for exposure prevents interference with a substrate holder at the time of being loaded onto the substrate holder and prevents a liquid from entering into a rear plane side after being loaded. A substrate (P) for exposure is a substrate to be exposed by irradiation of exposure light through the liquid, and has a size tolerance (DP) of an outer diameter (LP) of ±0.02 mm or less. | 2008-12-25 |
20080318153 | PHOTOSENSITIVE LAYER STACK - A photosensitive layer stack and methods for multiple exposure lithography are disclosed having a bleachable layer with a first absorption switching from absorptive to transmissive upon irradiation and a photochromic layer having a second absorption switching from transmissive to absorptive upon irradiation. | 2008-12-25 |
20080318154 | Ink-Less Printing - A method of ink-less printing comprises the steps of: providing a source ( | 2008-12-25 |
20080318155 | LITHOGRAPHIC PRINTING PLATE PRECURSOR AND PLATE MAKING METHOD - A lithographic printing plate precursor includes: an aluminum support; an intermediate layer; and an image-recording layer, in this order, wherein at least one of the intermediate layer and the image-recording layer contains a compound having an amino group and a functional group capable of interacting with the aluminum support in a molecule. | 2008-12-25 |
20080318156 | Adamantane Based Molecular Glass Photoresists for Sub-200 Nm Lithography - Disclosed are glass photoresists generated from adamantane derivatives containing acetal and/or ester moieties as novel high-performance photoresist materials. Some of the disclosed adamantane-based glass resists have a tripodal structure and other disclosed adamantane-based glass resists include one or more cholic groups. The disclosed adamantane derivatives can be synthesized from starting materials which are commercially available. By way of example only, one of many disclosed amorphous glass photoresists has the following structure: | 2008-12-25 |
20080318157 | RADIATION SENSITIVE SELF-ASSEMBLED MONOLAYERS AND USES THEREOF - The invention is directed to a radiation sensitive compound comprising a surface binding group proximate to one end of the compound for attachment to a substrate, and a metal binding group proximate to an opposite end of the compound. The metal binding group is not radiation sensitive. The radiation sensitive compound also includes a body portion disposed between the surface binding group and the metal binding group, and a radiation sensitive group positioned in the body portion or adjacent to the metal binding group. The surface binding group is capable of attaching to a substrate selected from a metal, a metal oxide, or a semiconductor material. | 2008-12-25 |
20080318158 | Underlayer Coating Forming Composition for Lithography Containing Polysilane Compound - There is provided an underlayer coating for lithography that is used in lithography process of the manufacture of semiconductor devices, that can be used as a hardmask, and that causes no intermixing with photoresists; and a composition for forming the underlayer coating. | 2008-12-25 |
20080318159 | POSITIVE PHOTOSENSITIVE COMPOSITION - A positive photosensitive composition comprising (A) an acid generator that generates an acid upon irradiation of an actinic ray or radiation, (B) a resin that has a monocyclic or polycyclic alicyclic hydrocarbon structure and is decomposed by the action of an acid to increase solubility in an alkali developing solution, and (C) a specific basic compound. | 2008-12-25 |
20080318160 | Novel sulfonate salts and derivatives, photoacid generators, resist compositions, and patterning process - Sulfonate salts have the formula: | 2008-12-25 |
20080318161 | Photosensitive Resin Composition for Flexographic Printing - A photosensitive resin composition for flexographic printing comprising a thermoplastic elastomer (a), a photopolymerizable unsaturated monomer (b), and a photopolymerization initiator (c) as essential ingredients, wherein the thermoplastic elastomer (a) is a block copolymer composition containing a block copolymer (i) having at least one polymer block comprised mainly of a mono-alkenyl aromatic compound and at least one polymer block comprised mainly of butadiene, and a branched block copolymer (ii) having at least two polymer blocks comprised mainly of a mono-alkenyl aromatic compound and at least one polymer block comprised mainly of butadiene; the amount of the mono-alkenyl aromatic compound unit in the thermoplastic elastomer (a) is 10-28 mass %; the amount of the block copolymer (i) in the thermoplastic elastomer (a) is 15-50 mass %; and the number average molecular weight (number average molecular weight in terms of polystyrene measured by GPC) of the branched block copolymer (ii) is 200,000-400,000. | 2008-12-25 |
20080318162 | USE OF HIGHLY ALKALINE DEVELOPER REGENERATOR COMPOSITION - A method for providing a lithographic printing plate includes developing an exposed imageable element with an alkali silicate-containing developer composition having a pH of at least 12.0. The developer composition is regenerated by adding to it an alkali silicate-containing regenerator composition having a pH of at least 12.0. Conductivity of both the developer and regenerator compositions is suppressed from the presence of one or more conductivity reducing agents (such as glycerin). This conductivity suppression in the developer composition is greater than the suppression of the conductivity of the regenerator composition. | 2008-12-25 |
20080318163 | Water spray development of planographic plates - Excellent development of planographic printing plates can be achieved by exposing an imaged, negative working, photopolymerizable coating to a high pressure stream of essentially untreated tap water, whereby the water completely removes only the less cohesive and adhesive (e.g., partially polymerized) regions to the substrate, thereby directly producing a printing plate having an image pattern of highly cohesive and adhesive, oleophilic regions of the coating and hydrophilic regions of the substrate. The coating removal mechanism appears to be due entirely to ablation. The high pressure stream is preferably delivered to the plate through at least one nozzle having a discharge pressure greater than about 200 psi. Each nozzle preferably has a spray pattern that impinges the plate over a substantially rectangular region of the plate, and the nozzle and plate translate relative to each other. The nozzle can reciprocate across the width of a longitudinally transported plate, thereby contacting successive regions of the plate in a rastering fashion. | 2008-12-25 |
20080318164 | Heated water spray processor - Excellent development of planographic printing plates can be achieved by exposing an imaged, negative working, photopolymerizable coating to a high pressure stream of essentially heated but otherwise untreated tap water, whereby the water completely removes only the less cohesive and adhesive (e.g., partially polymerized) regions to the substrate, thereby directly producing a printing plate having an image pattern of highly cohesive and adhesive, oleophilic regions of the coating and hydrophilic regions of the substrate. The coating removal mechanism appears to be due entirely to ablation. The process variables of spray pressure, spray volumetric flow rate, and water temperature can be traded off to achieve one or more targets for plate quality, energy conservation, production rate, and equipment availability. | 2008-12-25 |
20080318165 | Composition For Forming Antireflective Film And Wiring Forming Method Using Same - A material for forming an antireflective film that enables a large difference in etching rates to be obtained between a resist pattern and an antireflective film. | 2008-12-25 |
20080318166 | METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE - An object of the present invention is to provide a method of manufacturing semiconductor device, in which a water repellent layer on a resist film surface is removed to improve pattern-size controllability in a developing process. The pattern controllability of a resist pattern is improved by forming the resist pattern in such a manner that a resist film is formed on a surface of a semiconductor substrate, by using an exposure system, a liquid is filled between the resist film and a projection optical system to expose the resist film through the liquid, a water repellent layer formed on a surface of the resist film is removed after exposure, the substrate is thermally-processed after the water repellent layer is remove, and the resist film is developed. | 2008-12-25 |
20080318167 | Copolymer and composition for organic and antireflective layer - The present invention provides an organic anti-reflection coating composition comprising a copolymer represented by the following Formula 1, a light absorbent, a thermal acid generating agent, and a curing agent: | 2008-12-25 |
20080318168 | Method and Device for Structuring a Substrate - The invention relates to a method for structuring a substrate. According to said method, at least one mask with at least one opening is arranged over the substrate, and unmasked regions are modified in relation to masked regions of the substrate in order to form structures. The inventive method is characterised in that the representation of the mask opening on and/or in the substrate has smaller dimensions than those of the actual mask opening. The invention also relates to a device for carrying out said method. | 2008-12-25 |
20080318169 | PATTERN FORMING METHOD - A pattern forming method according to an embodiment of the present invention includes: forming a plurality of pole-like structures above a film to be processed; forming a sidewall film on each of sidewalls of the plurality of pole-like structures so as to form a depression portion in a region surrounded by corresponding ones of the plurality of pole-like structures; removing the sidewall film formed above each of the plurality of pole-like structures and in a bottom portion of the depression portion, respectively, by performing etching; and selectively etching the plurality of pole-like structures with the sidewall film being left. | 2008-12-25 |
20080318170 | Method of making an optical disc - A method of making an optical disc is disclosed, in which, a flexible imprint mold is made from a fluid-state flexible silicone and has a reversal pattern of a first pattern on a surface. Also, a substrate is provided and has a second pattern on the surface with a semi-reflective layer deposited thereon. A dye or UV curable resin layer is formed on the semi-reflective layer. The flexible imprint mold is used to imprint the dye or UV curable resin layer and allowed to stay on it. After the dye or UV curable resin layer is cured, the flexible imprint mold is released from the cured dye or UV curable resin layer, such that the dye or UV curable resin layer has the first pattern. | 2008-12-25 |
20080318171 | METHOD OF FORMING PATTERNS - A method of forming patterns includes (a) coating a substrate with a resist composition for negative development to form a resist film having a receding contact angle of 70 degrees or above with respect to water, wherein the resist composition for negative development contains a resin capable of increasing the polarity by the action of an acid and becomes more soluble in a positive developer and less soluble in a negative developer upon irradiation with an actinic ray or radiation, (b) exposing the resist film via an immersion medium, and (c) performing development with a negative developer. | 2008-12-25 |
20080318172 | Method for Regulating and Controlling a Firing Device and a Firing Device - A method is proposed for regulating a firing device taking into account the temperature and/or the burner load, in particular with a gas burner, comprising the regulation of the temperature (T | 2008-12-25 |
20080318173 | Heating Burner - The invention relates to a heating burner, in particular a heating burner for the combustion of long chain liquid fuel. The heating burner according to the invention comprises a control device which controls its actuators, namely an ignition device for igniting the fuel, an air delivery device for delivering combustion air and a fuel delivery device for delivering fuel to the ignition device, in such a way that the fuel is ignited at periodically recurring ignition intervals and burns for an adjustable combustion interval, wherein the heating capacity can be regulated at the interval concerned for the duration of the combustion interval by the control device. | 2008-12-25 |
20080318174 | Gas burner for oven - Burner for gas oven comprising a device for retaining a flame of the burner, separating the flame from a mixing chamber capable of receiving a flow of primary air and gas to form a gaseous mixture. The flame retention device is provided with a mesh comprising metal threads, capable of allowing said gaseous mixture to pass through the mesh, said mesh comprising at least one main zone and a pilot zone which are adjacent. The pilot zone having, according to a main direction of the flame of the burner, a thickness greater than the thickness of the main zone, capable of slowing down the gaseous mixture passing through the pilot zone relative to the mixture passing through the main zone. The burner comprises at least one orifice capable of receiving a secondary air flow. | 2008-12-25 |
20080318176 | Fuel element for melting plate candle assembly - A fuel charge for use with a melting plate candle assembly includes an outer shell of fuel material surrounding an inner core of fuel material having different properties than the fuel material of the outer shell. The outer shell is substantially solid and may contain fuel additive that slows capillary flow of liquid fuel to the flame through the wick. The inner core may include liquid fuel, discrete solid fuel particles, or a solid fuel mass. The fuel additive is disposed in the fuel charge so as to slow migration of liquefied fuel to a flame on a wick only after a substantial portion of the fuel charge has been liquefied by heat from the flame. | 2008-12-25 |
20080318177 | Non-sooting containerized candle - A non-sooting containerized candle is disclosed. The containerized candle includes a container having a top opening and a plurality of holes in an upper side wall portion of the container, a wick, a sustainer for securing the wick to the base of the container, and wax or other fuel material surrounding a major portion of the wick. The plurality of holes can be present in varying patterns in the upper side wall portion of the container to control air flow into and out of the container to provide complete combustion of the candle and prevent emission of carbon particulates. The pattern of holes control or adjust air flow around the burning wick from a turbulent air flow to a laminar air flow. | 2008-12-25 |
20080318178 | Systems and methods for dental appliance compliance indication - An apparatus for monitoring orthodontic treatment compliance includes an appliance adapted to be worn over one or more teeth; and a compliance indicator mounted on the appliance to indicate compliance. | 2008-12-25 |
20080318179 | Correcting the position of teeth in dental arch model - A method of correcting a dental arch model so that it accurately reflects the current arrangement of a subject's teeth includes positioning a plurality of tooth models in a corrected arrangement using a representation of at least a portion of a subject's current dental arch (wherein the tooth models comprise models of the subject's teeth having fiduciary markers), and producing a base plate configured to hold the plurality of tooth models in the corrected arrangement. The representation of the current arrangement may be, for example, a physical impression of the subject's teeth, a 3D scan or one or more 2D scans of the subject's teeth. | 2008-12-25 |
20080318180 | DENTAL SCOPE - A dental scope including a stretchable rod, a fog-repellent reflection mirror group and a light module is disclosed. The fog repellent mirror group has a first fog-repellent reflection mirror connected to a distal end of the stretchable rod, and a second fog-repellent reflection mirror connected to a primal end of the stretchable rod. The light module has a spot light source, a battery and a switch disposed on the stretchable rod. The spot light source is employed to illuminate an interior of user's mouth. | 2008-12-25 |
20080318181 | Buccodental Hygiene Apparatus and Disposable Unit - The invention concerns buccodental hygiene. | 2008-12-25 |
20080318182 | Water bottle system for use in a dental operatory - A water bottle adapter ( | 2008-12-25 |
20080318183 | Bite block with snap-in positionable fluid ejector - A dental appliance apparatus is made up of a bite block and a snap-in, positionable fluid ejector. An aspirator tube is positioned and slideably engaged within a tube holder which, in turn, is rotatably engaged with the bite block. This allows for selective angular positioning of the aspirator tube so as to accommodate a wide range of patients in aspirating fluids as efficiently as possible. | 2008-12-25 |
20080318184 | Vibratory Dental Tool - A powered dental tool generally includes a tool tip at its distal end, a body at its proximal end and a motion generating mechanism. In one aspect, the dental tool includes a tool tip having a proximal end and a distal end along a generally longitudinal axis and a reciprocating motion generating mechanism. The reciprocating motion generating mechanism may repeatedly move the tool tip generally back and forth by a given displacement generally along the tool tip's longitudinal axis. This displacement generally resembles the action of a hand scaler, i.e., a reciprocating motion along the longitudinal axis of the scaler, which is unlike the vibration of most powered scalers. Such action may be advantageous as it may be more intuitive for the dental professional or hygienist and may provide more effective scaling action. It may further be advantageous for a powered scaler to more closely resemble a hand scaler in form, which is small, portable and untethered. In one embodiment, the motion generating mechanism may include a rotational source and set of opposing magnetic transfer elements. | 2008-12-25 |
20080318185 | DENTAL HANDPIECE - A dental handpiece is disclosed which comprises a grip section having a head section in which a treatment tool is detachably attached, and a drive section detachably connected thereto. The grip section comprises a casing having front and rear casing portions, with the front casing portion being continuous to the rear casing portion at an angle; a first rotary shaft rotatably supported in the rear casing portion, a cylindrical jacket extending from the head section and arranged and fixed in the front casing portion toward the first rotary shaft, and a second rotary shaft rotatably supported in the jacket, and operatively connected to the treatment tool at one end and to the first rotary shaft at the other end via a gear. The driving force from the drive section is transmitted by means of the first and second rotary shafts to the head section to drive the treatment tool. The jacket is provided with an engagement groove on its circumferential surface. The grip section further comprises engaging means disposed in the rear casing portion and detachably engaging the engagement groove on the jacket, wherein the jacket arranged in the front casing portion is fixed therein by means of engagement of the engagement groove on the jacket and the engaging means in the rear casing portion. | 2008-12-25 |
20080318186 | DENTAL DEVICE, SUCH AS A BRIDGE OR INSERT - A dental bridge and a dental device. The dental device may include a structural portion extending along an axis and connectable to at least one tooth. A truss portion may depend from the structural portion and be operable to support a pontic, the truss portion may define a plurality of slots extending from a peripheral surface. The structural portion may have a first surface oriented toward the occlusal surface and an opposite second surface, the structural portion defining a plurality of openings, the plurality of openings extending transverse to the axis and between the first surface and the second surface. The structural portion may define an angled surface leading into at least one of the plurality of openings. A plurality of projections may be formed on a first surface of the structural portion, each of the projections having a projection surface spaced beyond the first surface toward the occlusal surface. | 2008-12-25 |
20080318187 | Tooth preparation instrument and system of its use - At an initial office visit, the dentist makes an impression of the portion of the mouth in which the tooth is located, with upper and lower occlusal surfaces at or below the gum line. After preparation of a crown, the dentist presses the surface contour tool against the biting surface of the tooth to determine the depth settings for at least one burr in a surface tool that will remove the upper surface of the tooth and create a working surface for the material removal device. The dentist inserts at least one burr with the proper length in this tool so that when the tool is lowered onto the tooth, a flat surface will be created. The flat surface tool and the center hole drilling burr are operated with a device that locks onto the tooth and ensures that the top surface of the tooth will be perpendicular to the central longitudinal axis of the tooth. The dentist inserts the guide pin of the material removal device in the center hole or onto a disk post and begins to remove material from the side of the tooth. | 2008-12-25 |
20080318188 | Dimer Acid-Derived Dimethacrylates and Use in Dental Restorative Compositions - The present invention provides polymerizable dental compositions comprising a dimer acid-derived monomer such as a dimer acid-derived di(meth)acrylate monomer. In one embodiment, the dimer acid-derived monomer is of the formula (I): wherein R | 2008-12-25 |
20080318189 | Solid Free-Form Fabrication Methods For The Production of Dental Restorations - Solid free form fabrication techniques can be utilized indirectly to manufacture substrates, dies, models, near-net shapes, shells, and wax-ups that are then used in the manufacture of dental articles. Digital light processing is the most preferred indirect method for the production of substrates. After the substrates are produced, various coating or deposition techniques such as gel casting, slip casting, slurry casting, pressure infiltration, dipping, colloidal spray deposition or electrophoretic deposition are used to manufacture the dental article. | 2008-12-25 |