Class / Patent application number | Description | Number of patent applications / Date published |
264605000 | Particular or specific manner of positioning, arranging, or conveying of plural articles or plural preforms (e.g., stacking, utilizing spacer, etc.) during sintering, vitrifying, or drying | 10 |
20080251976 | Micro and nano-spacers having highly uniform size and shape - A spacer for forming a gap in a device includes a predetermined geometric shape and is less than about 500 micrometers in a broadest dimension. A plurality of spacers can be fabricated where each spacer of the plurality of spacers has a predetermined geometric shape, the same predetermined geometric shape, or a variety of predetermined geometric shapes. The spacers of the plurality of spacers can also include a polydispersity of about 1.0005. The spacer can be positioned between two components of a device to provide accurate spacing of the components. | 10-16-2008 |
20090020924 | Drying-mediated self-assembly of ordered or hierarchically ordered micro- and sub-micro scale structures and their uses as multifunctional materials - Methods, apparatus, and systems of fabricating ordered or hierarchically ordered small-scale structures (e.g. micro- or sub-micro size) without the need for lithographic techniques or external fields. The methods use irreversible solvent evaporation to deposit the solute on a surface. A spherical lens is brought down into contact with the droplet. By selection and control of one or more relevant parameters, various characteristics or features of the resulting structures can be controlled. Nano-scale structures or materials can be formed or included in the micro- or sub-micro-scale formed structures. The nano-scale structures or materials can self-assembly in hierarchical order by selection and control of certain process parameters. | 01-22-2009 |
20090108507 | Method for manufacture of transparent ceramics - The disclosed invention relates to a method of manufacture of transparent ceramics such as yttrium aluminum garnet by tape casting. The method entails forming a mixture of ceramic oxide, dispersant and organic solvent, milling the mixture to produce a first slurry, mixing the first slurry with an organic binder and a plasticizer to form a treated slurry, milling the treated slurry to produce milled slurry, tape casting the milled slurry to produce cast tape, drying the cast tape to produce dried tape, stacking portions of dried tape to form an assembly, compressing the assembly to produce a preform, heating the preform to produce a green preform, and sintering the green preform to produce transparent yttrium aluminum garnet. The method may be used to produce a unitary ceramic product having differing transparent sections as well as transparent ceramic product having a dopant gradient across a portion of the thickness of the product. | 04-30-2009 |
20090243163 | CO-FIRING OF MAGNETIC AND DIELECTRIC MATERIALS FOR FABRICATING COMPOSITE ASSEMBLIES FOR CIRCULATORS AND ISOLATORS - A method for making a composite magnetic-dielectric disc assembly includes forming a dielectric ceramic cylinder, forming a magnetic ceramic rod, assembling the magnetic ceramic rod coaxially inside the dielectric ceramic cylinder to form a rod-and-cylinder assembly, kilning (firing) the rod-and-cylinder assembly, slicing the rod-and-cylinder assembly to form a plurality of composite magnetic-dielectric disc-shaped assemblies. The magnetic-dielectric disc assemblies can be used in manufacturing, for example, circulators, isolators or similar electronic components. Accordingly, the method for making the disc assemblies can be included as part of a method for making such electronic components. | 10-01-2009 |
20120056359 | METHOD FOR PREPARING OF CERAMIC SHAPED PART, APPARATUS AND USE THEREOF - Method and apparatus for preparing of at least one ceramic shaped part. A cavity is provided between at least one external shape and at least one internal shape. A Si-containing powder composition is then provided in the cavity. The composition is then heated in a reactive gas atmosphere to obtain a reaction bounded ceramic shaped part. Use of the apparatus is also described. | 03-08-2012 |
20120068389 | Methods of fabricating polycrystalline ceramic for thermoelectric devices - Provided is a method of fabricating polycrystalline ceramic for thermoelectric devices. The method includes preparing calcined ceramic powders, forming a ceramic sheet by uni-axially pressing the calcined ceramic powders, stacking a plurality of the ceramic sheets in a uni-axial direction, and cofiring the stacked the plurality of the ceramic sheets. | 03-22-2012 |
20140131926 | Methods For Improved Atmosphere Control Through Secondary Gas Pressure Wave Firing - Methods of firing ware in a furnace. At least one stack of ware is positioned in a ware space of a furnace. The stack of ware comprises a plurality of ware articles arranged such that at least laterally adjacent ware articles are spaced apart. The at least one stack of ware is heated in the ware space of the furnace. At least one gas is introduced into the ware space on a first side of the at least one stack of ware as the stack is heated. A flow condition of the at least one gas is adjusted to create a pressure differential within the furnace across at least a portion of the ware space such that at least some of the at least one gas flows through the at least one stack of ware. | 05-15-2014 |
20140361470 | MULTILAYER CERAMIC SUBSTRATE AND METHOD FOR PRODUCING THE SAME - When a multilayer ceramic substrate with a cavity is reduced in thickness, a bottom wall portion defining the bottom of the cavity is reduced in thickness, thereby leading to the problem that the bottom wall portion is likely to be broken. A bottom wall portion defining a cavity of a multilayer ceramic substrate has a stack structure formed with a high thermal expansion coefficient layer sandwiched between first and second low thermal expansion coefficient layers. This configuration generates compression stress in the low thermal expansion coefficient layers during a cooling process after firing, thereby allowing the mechanical strength at the bottom wall portion to be improved. | 12-11-2014 |
264606000 | In a tunnel or channel kiln | 1 |
20090243164 | Preparation of a dense, polycrystalline ceramic structure - Ceramic nanopowder was sealed inside a metal container under a vacuum. The sealed evacuated container was forced through a severe deformation channel at an elevated temperature below the melting point of the ceramic nanopowder. The result was a dense nanocrystalline ceramic structure inside the metal container. | 10-01-2009 |
264607000 | Utilizing removable setter or spacing means | 1 |
20120133088 | LARGE REFRACTORY ARTICLE AND METHOD FOR MAKING - A method of sintering large refractory ceramic articles is disclosed. The method includes supporting a green refractory body on a plurality of support plates, the support plates in turn being supported by a plurality of support members having arcuate upper and lower surfaces. A setter material is disposed between the green refractory body to be sintered and the support plates. As the refractory body is sintered, the density of the article increases. Concurrently, the dimensions of the body decrease, which shrinkage, unless otherwise accommodated, may cause fracture of the body. The support plates and the structure of the support members, move to prevent the development of detrimental stresses in the refractory body as it sinters. | 05-31-2012 |
Patent applications in class Particular or specific manner of positioning, arranging, or conveying of plural articles or plural preforms (e.g., stacking, utilizing spacer, etc.) during sintering, vitrifying, or drying
Patent applications in all subclasses Particular or specific manner of positioning, arranging, or conveying of plural articles or plural preforms (e.g., stacking, utilizing spacer, etc.) during sintering, vitrifying, or drying