...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.
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| Number | Title | Issue Date |
| 7915188 | Ultrafine nepheline syenite A useable particulate nepheline syenite having a grain size to provide an Einlehner Abrasive Value of less than about 100 is described. The particulate nepheline syenite is generally free from agglomeration and moisture free. At least 99% of the nepheline syenite pa... | 03/29/2011 |
| 7442663 | Ceramic clay, ceramic formed article, ceramic structure, and manufacturing methods thereof There is disclosed a ceramic clay obtained by kneading a forming material containing a ceramic forming material, wherein the forming material contains layered double hydroxide, in addition to the ceramic forming material, at a ratio of 0.5 to 50% by mass with respec... | 10/28/2008 |
| 7402543 | Decorative refractory tile and method of use The present invention relates to a decorative refractory tile and it's method of use. This decorative tile utilizes a specially formulated clay body that undergoes dehydration and vitrification by firing in a specific manner with respect to temperature, time and rat... | 07/22/2008 |
| 6919289 | Methods and compositions for low thermal expansion ceramic Methods and compositions are provided for making low temperature sintering ceramic bodies that have very low thermal expansion and low porosity. ... | 07/19/2005 |
| 6872677 | Brick additives and methods for using same A brick additive and methods for using the brick additive are disclosed. The additive may include an internal porosity. The internal porosity may display an intra-granular internal porosity in which at least some of the pores are interconnected via an open network o... | 03/29/2005 |
| 6846768 | Methods and compositions for low thermal expansion ceramic Methods and compositions are provided for making low temperature sintering ceramic bodies that have very low thermal expansion and low porosity. ... | 01/25/2005 |
| 6824877 | Clay compositions and objects including clay compositions A clay composition comprises, in parts by weight on oxide basis, 10-15% Al2O3, 50-85% SiO2, 0-12.5% B2O3 and 10-20% metal oxides of the form RO or R2O. ... | 11/30/2004 |
| 6703337 | Ceramic media Ceramic media made using ceramic components comprising from 5 to 60% by weight of spodumene and 95 to 40 wt % of other ceramic-forming components comprising clay and feldspar have a reduced tendency to shrink upon firing to form the media and improved phy... | 03/09/2004 |
| 6475941 | Method for producing porcelain, porcelain and ceramic isolator formed from porcelain A process is described for producing porcelain, in particular high-strength porcelain and a ceramic insulator. To produce the porcelain, calcined bauxite is used instead of alumina. The simultaneous addition of clay and kaolin, in each case containing mor... | 11/05/2002 |
| 6251814 | Light-weight pottery article This invention provides a light-weight pottery article with lower specific gravity than that of general pottery as well as a process for producing the same. The light-weight pottery article of the invention is produced by adding a lightening agent to clay... | 06/26/2001 |
| 6127298 | Compositions for ceramic tiles A composition for ceramic tiles, the composition having being formulated from materials including granite and comprising the following components, given in weight percent, based on the total weight of the composition: ________________________________... | 10/03/2000 |
| 6107223 | Method for preparing high strength and high thermal shock-resistant china for ceramic whiteware A method for preparing high strength and high thermal shock-resistant china for ceramic whiteware which comprises the steps of molding a china-forming raw material which mainly comprises a natural ore material capable of forming corundum through firing or... | 08/22/2000 |
| 6063720 | Synthetic garnite tiles and a method of producing the same from beach sand garnet This invention relates to synthetic garnite tiles made essentially from garnite sand and a process for the production of synthetic garnite tiles essentially from garnet sand which is a by-product of beach sand from rare earths extraction, said process com... | 05/16/2000 |
| 6037288 | Reinforcement of ceramic bodies with wollastonite The use of wollastonite fibers having relatively long average fiber lengths as reinforcement agents for unfired sanitaryware bodies. The addition of refined wollastonite to sanitaryware bodies exhibited improved resistance to propagation of cracks, reduce... | 03/14/2000 |
| 5972263 | Process for producing clay compositions for use in slip casting A method of improving the strength and/or plasticity of a clay composition comprising a kandite clay and an organic additive comprising at least one water soluble compound having a plurality of basic groups wherein the organic additive is present in an am... | 10/26/1999 |
| 5948713 | Cristobalite-free mullite grain and method of producing same A method of calcining kaolin, comprising the steps of: a) producing a clay slurry comprised of water and kaolin clay of a specific particle size; b) mixing a water insoluble potassium containing glass forming compound into the clay slurry in an amount wherein ... | 09/07/1999 |
| 5914294 | Adsorptive monolith including activated carbon and method for making said monlith An adsorptive monolith made by extruding a mixture of activated carbon, a ceramic forming material, a flux material, and water, drying the extruded monolith, and firing the dried monolith at a temperature and for a time period sufficient to react the cera... | 06/22/1999 |
| 5766501 | Tire balancing A method and composition of matter for balancing tire and rim assemblies of vehicles is disclosed wherein the composition of matter has rounded balancing elements of different sizes to line the interior of a tire casing and to move over the lining to offs... | 06/16/1998 |
| 5744413 | Cryolite resistant refractory liner This invention relates to a Hall-Heroult cell for aluminum production comprising a cryolite-resistant liner comprising: i) between 75 weight percent wt % and 95 wt % alumina-silica refractory grain, and ii) between 1 wt % and 10 wt % of a sealant selected from... | 04/28/1998 |
| 5721037 | Honeycomb structural bodies and method of producing the same A honeycomb structural body is obtained by mixing 60~80 wt % of aggregate, which does not show a transformation of crystal structures substantially up to 500° C., and 20~40 wt % of clay to obtain a mixture, adding phosphate as a hardening agent to the mi... | 02/24/1998 |
| 5716894 | Whiteware ceramic compositions A whiteware ceramic composition is provided comprising a filler, 4 to 10% by weight of a flux having a median particle size of below 6 microns, a prefired ceramic material milled separately from the other components, and raw clay constituting from 5 to 20... | 02/10/1998 |
| 5641720 | Corundum porcelain composition, processes for its preparation and use A corundum porcelain composition containing from 60 to 94% by weight of a component A and from 6 to 40% by weight of a component B, wherein component A contains from 0 to 70% by weight of alumina, from 20 to 70% by weight of clay material, from 10 to 50% ... | 06/24/1997 |
| 5614448 | Method for the manufacture of porcelain The invention relates to a porcelain with a transparency and strength properties of a hard porcelain, characterized by a phosphate-containing glass phase as well as the predominance of unreacted quartz bodies [sic; grains] in the matrix. The invention rel... | 03/25/1997 |
| 5593930 | Composition for high pressure casting slip, high pressure casting slip and method for preparing the composition and slip An object of the present invention is to shorten the working time for high pressure slip casting. There is provided a composition for high pressure casting slip including a first starting powder forming a frame of a mold body and second starting powder fo... | 01/14/1997 |
| 5587347 | Raw materials for producing color ceramic products The present invention has disclosed raw materials for producing color ceramic products, which is prepared by using V-bearing titanomagnetite tails obtained after ore dressing as base material with a given proportion of additives and with or without colori... | 12/24/1996 |
| 5573982 | Slurry composition, shaping method using the same, and fired body A slurry composition is described, which comprises 100 parts by weight of a raw mineral material for white ware and/or a raw mineral material for advanced ceramics, from 0.5 to 20 parts by weight of a re-dispersible resin powder, and water. A shaping usin... | 11/12/1996 |
| 5565392 | High strength porcelain and method therefor A method for making a high strength porcelain for use as an insulator or a structural ceramic, comprising: A) forming a mixture comprising alumina, clay and a fluxing material; B) forming the mixture into a shaped article; and C) firing the shaped article.... | 10/15/1996 |
| 5556817 | Cryolite resistant refractory A barrier comprising: a) between about 75 w/o and about 95 w/o alumina-silica refractory grain, and b) between about 2 w/o and about 10 w/o of a sealant selected from the group consisting of zinc borate; sulfur; R1 Alx/2 Siy/2 O... | 09/17/1996 |
| 5461015 | High strength porcelain and method therefor A porcelain having 9 to 55% by weight of SiO2, 36 to 87% by weight of Al2 O3, 0 to 2.0% by weight of Fe2 O3, 0 to 1.0% by weight of TiO2, 0 to 0.5% by weight of CaO, 0 to 0.5% by weight of ... | 10/24/1995 |
| 5455210 | Porcelain, porcelain batch composition and method for the manufacture of the porcelain The invention relates to a porcelain with a transparency and strength properties of a hard porcelain, characterized by a phosphate-containing glass phase as well as the predominance of unreacted quartz grains in the matrix. The invention relates to a porc... | 10/03/1995 |
| 5275989 | Ceramic composition for the production of the top layer of two-layered stoneware tiles A composition useful for the top layer of two-layered stoneware or semi-stoneware tiles has, with or without added coloring substances or pigments, the following composition: ______________________________________ Clay (white burning) ... | 01/04/1994 |
| 5266536 | Ceramic green bodies Green bodies suitable for use in manufacturing ceramic articles are provided. The bodies comprise a coherent mass of particles of aluminium oxide free of organic binder and having a fracture stress measured by a biaxial disc flexure test of at least 10 MP... | 11/30/1993 |
| 5183787 | Amphoteric ceramic microwave heating susceptor compositions with metal salt moderators Disclosed are improved ceramic compositions which are useful in the formulation of microwave susceptors and to the susceptors fabricated therefrom for disposable packages for the microwave heating of food items. The compositions include certain metal salt... | 02/02/1993 |
| 5153155 | Clay slurry A slurry composition which may be used to produce a casting slip is provided. The slurry is made by blending a ball clay/water mixture together with a separate mixture of clay and water. The blended slurry thus produced contains from about 0.01 to about 1.0 ... | 10/06/1992 |
| 4983556 | High strength porcelains for use in insulators and production thereof High strength alumina porcelains for use in insulators are disclosed herein, in which the maximum particle diameter of quartz grians remaining in the porcelains is not more than 40 μm. A process for producing such high strength alumina porcelains for use... | 01/08/1991 |
| 4954460 | Water-permeable ceramic material A water-permeable ceramic material is made of a porcelain particulate material as the principle component, one or more primary binders selected from starch adhesives, organic binders, clay and water glass, and one or more secondary binders selected from f... | 09/04/1990 |
| 4843047 | Method for producing a high strength feldspathic porcelain High strength porcelain having an unglazed bending strength of greater than 1,400 kg/cm2 and consisting essentially of 22-85% by weight of SiO2, 10-73% by weight of Al2 O3, and 1.5-6.5% by weight of K2 | 06/27/1989 |
| 4798536 | High strength feldspathic dental porcelains containing crystalline leucite Translucent feldspathic dental porcelain compositions and dental restoration made therefrom exhibiting a crystalline leucite content of at least about 45% by weight, wherein said leucite crystallites exhibit a size of less than about 35 microns, comprisin... | 01/17/1989 |
| 4717695 | High strength feldspathic porcelain High strength porcelain having an unglazed bending strength of greater than 1,400 kg/cm2 and consisting essentially of 22-85% by weight of SiO2, 10-73% by weight of Al2 O3, and 1.5-6.5% by weight of K2 | 01/05/1988 |
| 4623435 | Backfill for magnesium anodes A backfill composition for use with sacrificial magnesium anodes used in the cathodic protection of ferrous metal structures comprises an anion-releasing material capable of releasing fluoride, phosphate or zincate ions in water-soluble form and a magnesi... | 11/18/1986 |