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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 6777360 | Ceramic material, method of producing same, and formed product thereof A ceramic material suitable for use in production of paving tiles, construction tiles, flooring in offices, flooring in machinery plants and so forth is obtained by a method comprising steps of mixing defatted bran derived from rice bran with a thermosetting resin b... | 08/17/2004 |
| 6762147 | Composite oxide powder, catalyst and process for producing the same Composite oxide powder has a large specific surface area and a large pore volume even after a high-temperature durability test, without losing oxygen storage ability of a single metal oxide. In this composite oxide powder, a first metal oxide having oxygen storage a... | 07/13/2004 |
| 6753089 | Zircon/zirconia mix for refractory coatings and inks Refractory coatings comprising unstabilized zirconia, silica, and, optionally, zircon and/or mullite are disclosed herein. The unstabilized zirconia, silica, and optional zircon and/or mullite are applied as a slurry onto ceramic substrates such as silicon carbide a... | 06/22/2004 |
| 6723674 | Multi-component ceramic compositions and method of manufacture thereof A microstructured or nanostructured multi-component ceramic comprises (a) a major ceramic phase comprising a ceramic oxide composite; (b) a ceramic oxide additive; and (c) a rare earth ceramic oxide additive, wherein the total of the additives (b) and (c) comprise f... | 04/20/2004 |
| 6713421 | Blank comprised of a zirconium oxide ceramic with an oxide additive and the use thereof The invention relates to blanks comprising zirconium oxide-based ceramic with an addition of 0.1 to 0.50 wt.-% of at least one of the oxides of the elements aluminium, gallium, germanium, indium and their use. ... | 03/30/2004 |
| 6703334 | Method for manufacturing stabilized zirconia The process produces a stabilized zirconia powder by first contacting zirconium basic carbonate particles with a stabilizer compound. This reacts the zirconium basic carbonate particles with the stabilizer compound through heterogeneous contact to form a ... | 03/09/2004 |
| 6696376 | Zirconia containing ceramic ball, method for manufacturing same, ceramic ball bearing and check valve A zirconia containing ceramic ball is formed of a zirconia containing ceramic material which contains in an amount of not less than 10% by volume the zirconia ceramic phase composed predominantly of zirconium oxide. The size of the largest pore among pore... | 02/24/2004 |
| 6689202 | Molds for the manufacture of a dental restoration and methods of making dental restorations Blocks of material are prepared in a variety of shapes and sizes to be used in the fabrication of models for dental restorations. The material comprises a partially sintered ceramic material. The blocks are used to manufacture molds using CAD/CAM methods ... | 02/10/2004 |
| 6669871 | ESD dissipative ceramics This invention relates to a dense ceramics having ESD dissipative characteristics, tunable volume and surface resistivities in semi-insulative range (103 -1011 Ohm-cm), substantially pore free, high flexural strength, light colors, f... | 12/30/2003 |
| 6667262 | Self-lubricating ceramic composites The invention comprises a self-lubricating ceramic composite characterized as having a low porosity derived from a mixture of at least one ceramic powder preferably selected from the group consisting of silicon nitride, silicon carbide, zirconia, alumina,... | 12/23/2003 |
| 6660673 | Use of particulate materials containing TiO2 in refractory products In order to reduce wear on refractory linings due to corrosion and the infiltration of slags and molten metals, particulate materials containing TiO2 are added to the refractory products consisting of a mixture of aggregates and binding agents.... | 12/09/2003 |
| 6602813 | Electrostatic removing member having semiconductive zirconia sintered body An electrostatic removing member includes a semiconductive zirconia sintered body having a volume specific resistance value from 105 to 109Ω.multidot.cm. Preferably, the semiconductive zirconia sintered body includes 60 to 90 weight... | 08/05/2003 |
| 6589448 | Ceramic ball for bearing and ceramic ball bearing using the same A ceramic bearing ball in which at least a portion of a constituent ceramic is formed of an electrically conductive inorganic compound phase, whereby a proper electrical conductivity is imparted to the ceramic. Thus, electrifying of a bearing ball is prev... | 07/08/2003 |
| 6586355 | Slagline sleeve for submerged entry nozzle composition therefore An improved submerged entry nozzle is provided which is useful in the casting of aluminum killed molten steel. The nozzle has an improved slagline sleeve or collar which surrounds the outer portion of the nozzle to protect it from corrosion during the cas... | 07/01/2003 |
| 6562747 | Gas sensor electrolyte The electrolyte comprises up to about 80 wt % zirconia, up to about 30 wt % stabilizer, and up to about 40 wt % dopant-zirconia. Alternatively, the electrolyte can comprise zirconia having a phase chemistry, wherein the phase chemistry, at about 25° C., ... | 05/13/2003 |
| 6558821 | Ceramic sinter, and wear resistant member and electronic component member using thereof In ceramic sinter consisting of at least one kind selected from a group consisting of silicon nitride, zirconia, silicon carbide, cermet, SIALON, aluminum nitride and alumina, wear resistant member and electronic component member using thereof, skewness a... | 05/06/2003 |
| 6551954 | WC-base composite ceramic sintered compact A WC-based composite ceramics sintered body consisting of 40 volume % to 90 volume % of WC including solid-solved oxygen represented by a chemical formula of WCx Oy (where 0.005 | 04/22/2003 |
| 6534430 | Material for measuring static and dynamic physical parameters A sensor material for measuring physical parameters capable of configuring a sensor capable of directly measuring a high value of physical parameters such as high stress or high pressure without employing a pressure resistance container. The sensor materi... | 03/18/2003 |
| 6517693 | Ion conductor The invention presents an ion conductor with high reliability, that is one of the following perovskite oxides: 1 perovskite oxide of the composition BaZr1-x Cex O3-p (0 | 02/11/2003 |
| 6514892 | Transparent beads and their production method Transparent solid, fused microspheres are provided. In one embodiment, the microspheres contain alumina, zirconia, and silica in a total content of at least about 70% by weight, based on the total weight of the solid, fused microspheres, wherein the total... | 02/04/2003 |
| 6485622 | Lithium ion conductive glass-ceramics and electric cells and gas sensors using the same Lithium ion conductive glass-ceramics comprise in mol %: P2 O5 30-45% SiO2 0-15% GeO2 + TiO2 25-50% ... | 11/26/2002 |
| 6482759 | Molybdenum silicide material with high strength Molybdenum silicide material with high strength at both room temperature and high temperatures, comprising a composite material, which is made from a mixture including MoSi2 and ZrO2. The mixture includes 5-30 vol-% ZrO2 a... | 11/19/2002 |
| 6475940 | Wear resistant member for electronic equipment and bearing and spindle motor therewith Wear resistant member for electronic equipment comprises a zirconium oxide sintered body of which specific resistance is in the range from 1 to 105 Ω.multidot.m. A conductivity enhancer of which specific resistance is 10-5 Ω.multid... | 11/05/2002 |
| 6468325 | Method of making phosphate-based ceramic filters The present invention provides a method of making a ceramic filter, by forming a mixture from NZP-forming raw material powders selected from metal oxide sources capable of reacting to form a reaction product comprising an NZP-type phase having the general... | 10/22/2002 |
| 6410469 | Slagline sleeve for submerged entry nozzle and composition therefor An improved submerged entry nozzle is provided which is useful in the casting of aluminum killed molten steel. The nozzle has an improved slagline sleeve or collar which surrounds the outer portion of the nozzle to protect it from corrosion during the cas... | 06/25/2002 |
| 6403511 | Process for making isotropic negative thermal expansion ceramics Ceramic monoliths are described which exhibit tunable coefficients of thermal expansion from about -5 to -11×10-6° C.-1 near ambient temperatures. These two-phase ceramics, which are fabricated, for example, by reactive sintering o... | 06/11/2002 |
| 6395381 | Vapor deposition material Objects of the invention are to provide a novel vapor deposition material for coating from which a thermal barrier coating film excellent in heat resistance and thermal shock resistance can be satisfactorily formed even by the EB-PVD method, and to provid... | 05/28/2002 |
| 6380113 | Tetragonal zirconia ceramic powders, tetragonal zirconia-alumina composite using the ceramic powder and method of preparation for the same The present invention relates to a zirconia/alumina composite and a manufacturing method thereof which provide a zirconia ceramic powder having a composition in a triangle composition range formed of three composition points of 92 mol % ZrO2 -4... | 04/30/2002 |
| 6379417 | Nickel cermet anodic material for fuel cell anode The present invention provides a nickel cermet, which includes: 35% to 70% by weight of a nickel phase, and 65% to 30% by weight of zirconium oxide phase, wherein the zirconium oxide is stabilized in cubic form by 5 to 20 moles of yttrium oxide for each 100 moles o... | 04/30/2002 |
| 6348428 | High-purity crystalline inorganic fiber, molded body thereof, and method of production thereof A crystalline inorganic fiber or molded body thereof is thermally treated in gas atmosphere containing chlorine. The crystalline inorganic fiber or molded body thereof contains small impurities such as Fe, Cu and Ni. For example, Fe is 15 ppm or less, Cu ... | 02/19/2002 |
| 6344426 | Porous ceramic sheet, process for producing the same, and setter for use in the process The invention provides a setter which comprises a sheet ceramic containing 40% to 90% by weight of an [NiO] unit; a process for producing a porous ceramic sheet containing nickel oxide and stabilized zirconia, by the use of the setter; and a porous cerami... | 02/05/2002 |
| 6337295 | Ceramic granule for molding ceramic product, process for producing or treating the same, ceramic molded product and process for producing the same A ceramic granule, obtained by granulating at least one ceramic particle into a granule together with a binder, optionally classifying the ceramic granule to remove fine particle having a particle size of not more than 10 μm, moistening the granulated ce... | 01/08/2002 |
| 6322897 | Metal-ceramic gradient material, product made from a metal-ceramic gradient material and process for producing a metal-ceramic gradient material A metal-ceramic gradient material, in particular for a thermal shield or a gas turbine blade, includes a metal base material, a ceramic and an additive for high-temperature oxidation protection. The metal base material has a concentration decreasing from ... | 11/27/2001 |
| 6319868 | Zirconia particles Porous zirconia or zirconium-containing particles, methods of making such particles and methods of using such particles including modifications to the surface of the particles are described. The method comprises heating zirconia particles to provide a sub... | 11/20/2001 |
| 6309749 | Ceramic milling media containing tetragonal zirconia The present invention is milling media composed of ceramic particles having an average size of 0.1 to 20 mm. The ceramic particles contain a tetragonal zirconia core and a continuous shell on the core comprising cubic zirconia, monoclinic zirconia, spinel... | 10/30/2001 |
| 6284692 | t'-phase zirconias for high temperature applications A t'-phase zirconia shapes with superior properties are made by forming a zirconia powder containing a rare-earth-oxide dopant into sintered bodies. The sintered bodies are heat treated in an oxygen atmosphere at a temperature high enough to form a cubic ... | 09/04/2001 |
| 6274524 | Semiconductive zirconia sintering body and electrostatic removing member constructed by semiconductive zirconia sintering body The invention provides a semiconductive zirconia sintering body able to be manufactured simply and cheaply and escape static electricity at suitable speed without greatly reducing mechanical characteristics of zirconia. 10 to 40 weight % of one kind or more of... | 08/14/2001 |
| 6261985 | High temperature non-stick cookware A high temperature cookware is made with material to render it heat more uniformly, at a lower temperature to avoid over-burning, more resistant to cracking due to sudden change in temperature, and less fragile. The material includes cordierite to possess... | 07/17/2001 |
| 6258743 | Isotropic negative thermal expansion cermics and process for making Ceramic monoliths are described which exhibit tunable coefficients of thermal expansion from about -5 to -11×10-6° C.-1 near ambient temperatures. These two-phase ceramics, which are fabricated, for example, by reactive sintering o... | 07/10/2001 |
| 6258233 | Multilayered air-fuel ratio sensing element A multilayered air-fuel ratio sensing element has a zirconic solid electrolytic body and a heat-generating portion including an alumina substrate located adjacent to the zirconic solid electrolytic body. The zirconic solid electrolytic body is made of a p... | 07/10/2001 |
