| Patent application number | Description | Published |
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| 20080316564 | Display Devices - A flexible display comprises a flexible dielectric layer ( | 12-25-2008 |
| 20100068387 | INK FOR PRINTING ON LOW ENERGY SUBSTRATES - The invention provides an aqueous inkjet ink composition comprises a polymeric compound comprising discrete particles responsive to an external stimulus, and a functional material, wherein the functional material may be incorporated as part of the polymeric particles, the particles causing the composition to have a first rheological state and a different second rheological state in response to a stimulated change in conditions, the first rheological state being associated with a first lower viscosity of the composition, wherein the particles have a first lower volume, enabling the composition to pass through an inkjet printhead orifice and the second rheological state being associated with a second higher viscosity of the composition, wherein the particles have a second higher volume, enabling immobilisation of droplets of the composition on a substrate. The inkjet composition is particularly useful in a continuous inkjet printing system for printing onto a wide range of surfaces including impermeable surfaces. | 03-18-2010 |
| 20100170957 | MONODISPERSE DROPLET GENERATION - A method of creating substantially monodisperse droplets comprising supplying a first fluid ( | 07-08-2010 |
| 20100188462 | METHOD OF CONTINUOUS INKJET PRINTING - A liquid jet is ejected out of a nozzle, the liquid comprising one or more components, the flow of one or more of said components, the active components, being separated such that the liquid that flows within a boundary layer thickness δ, of the nozzle wall is substantially comprised of a liquid without the active components, the continuous phase, and the said active components flow substantially outside said boundary layer where δ is defined by formula (I): where μ is the continuous phase viscosity in Pa·s, U is the jet velocity in m/s ρ is the continuous phase density in kg/m3 and x is the length of the nozzle in m in the direction of flow. | 07-29-2010 |
| 20100188466 | CONTINUOUS INKJET DROP GENERATION DEVICE - A droplet generating device for use as part of a continuous inkjet printer comprises a set of channels for FLUID providing a composite flow of a first fluid ( | 07-29-2010 |
| 20100321449 | CONTINUOUS INKJET PRINTING - A continuous inkjet method in which liquid passes through a nozzle, the liquid being jetted comprising one or more dispersed or particulate components and where the particle Peclet number, Pe, defined by | 12-23-2010 |
| 20110159250 | PATTERNING METHOD - The invention provides a method of patterning flowable material on a surface. The method comprises providing the surface with at least one channel and at least one deposition region connected to the at least one channel, the width of the channel being less than the width of the deposition region, and depositing flowable material in the deposition region such that when the material makes contact with the channel the material is directed into said channel by capillary forces, the receding contact angle of the flowable material in the deposition region being less than 30°. | 06-30-2011 |
| 20120046407 | METHOD OF PREPARING STIMULUS-RESPONSIVE POLYMERIC PARTICLES - A method of making a polymeric compound, comprising discrete particles responsive to an external stimulus, that is resistant to aggregation in high-shear fields, which includes the addition of a polymerization initiator to a reaction mixture comprising a monomer corresponding to the polymeric compound, wherein the method comprises the portion-wise addition of aliquots of a cross-linking agent to the reaction mixture, wherein an aliquot of the cross-linking agent is added to the reaction mixture both before the addition of the polymerization initiator and after the polymerization has progressed substantially to completion. The polymer particles are largely immune to the effects of transient shear rates at least as high as 10 | 02-23-2012 |
| 20120075389 | DROPLET GENERATOR - A method and device for passively periodically perturbing the flow field within a microfluidic device to cause regular droplet formation at high speed. | 03-29-2012 |
| 20120273273 | ANALYSIS OF DRILLING CUTTINGS FOR PERMITTIVITY - Systems and methods for analysis of drilling cuttings are described. Complex permittivity is measured of rock cutting samples obtained during drilling operations. The origin of the cuttings is known by flow rate analysis in the drilling system. Various means can be used for rock cutting dielectric measurement. For example, the dielectric measurement can be made by matching the unknown permittivity of the medium to be analyzed to the permittivity of known liquid mixtures by successive saturation and looking for a “zero-contrast” measurement. | 11-01-2012 |
| 20150218941 | ENHANCED MATERIALS INVESTIGATION - The present disclosure provides systems, tools, and methods for enhancing a measurement of a fluid in a borehole, pipe, conduit and/or the like. The systems, tools, and methods may involve an electromagnetic measurement tool that includes a transmitting antenna configured to transmit electromagnetic energy, a receiving antenna configured to receive the electromagnetic energy, and a metamaterial element comprising a negative refractive index. The metamaterial element may focus the electromagnetic energy. The electromagnetic system may comprise one or more antennas that are disposed adjacent to or in contact with the fluid, electromagnetic energy may be transmitted via the transmitting antenna, and the electromagnetic energy may be received with the receiving antenna to measure a property of the fluid. | 08-06-2015 |
| Patent application number | Description | Published |
|---|
| 20090322811 | INKJET PRINTING SYSTEM - An inkjet printing system comprising a plurality of static inkjet printing units each comprising at least one inkjet printing head; an ink-receiving element comprising a poorly-absorbing or impermeable substrate; an aqueous inkjet composition which comprises a polymeric compound comprising discrete particles responsive to an external stimulus, and a functional material, which may be incorporated as part of the polymeric particles, the composition having a first rheological state and a different second rheological state in response to a stimulated change in conditions, the first state being associated with a first lower viscosity of the composition, wherein the particles have a first lower volume, and the second state being associated with a second higher viscosity of the composition, wherein the particles have a second higher volume, and of drying the aqueous ink composition only positioned downstream of the plurality of the printing units. | 12-31-2009 |
| 20100238232 | CONTINUOUS INK JET PRINTING OF ENCAPSULATED DROPLETS - A method for creating composite droplets for use in an ink jet system includes a first fluid ( | 09-23-2010 |
| 20110245400 | STIMULUS-RESPONSIVE POLYMERIC PARTICLES - A stimulus-responsive polymer particulate composition, comprising a first monomer, such as an aqueous microgel derived, for example, from N-isopropylacrylamide, may be rendered less susceptible to aggregation at high shear (e.g. at least as high as 10 | 10-06-2011 |
| 20130298649 | MEASUREMENT OF INTERFACIAL PROPERTY - Interfacial tension between first and second immiscible liquids is determined using a device in which entrance and exit channels are connected by a cavity with wider cross-section. A flow of the first liquid enters the cavity as a jet and breaks into droplets within the cavity. Passage of a droplet through the exit channel feeds back to perturb the jet entering the cavity. An alternating signal applied to a heating element perturbs the incoming jet and is progressively scanned over a frequency range which includes the system's resonant frequency (frequency of droplet formation with no signal to the heating element). A bandwidth of frequency is observed in which the frequency of droplet formation is phase locked to the frequency applied to the heater. The ratio of resonant frequency to this bandwidth is a measurement of the interfacial tension between the two liquids. | 11-14-2013 |
| 20140184230 | MATRIX PERMITIVITY DETERMINATION (IS10.0565-US-PCT) - A method and system for determining a rock matrix dielectric permittivity. The method and system use a matching liquid with a temperature dependant permittivity. The matching liquid may be used in an automated and/or downhole system for measuring matrix dielectric permittivity of rock formations. | 07-03-2014 |
| 20140298900 | ENHANCED MATERIALS INVESTIGATION - The present disclosure provides systems, tools, and methods for enhancing a measurement of a property of a solid body or fluid. The systems, tools, and methods may involve an electromagnetic measurement tool that includes a transmitter configured to transmit electromagnetic energy, a receiver configured to receive the electromagnetic energy, and a metamaterial element comprising a negative refractive index. The metamaterial element may focus the electromagnetic energy. The electromagnetic tool may be placed adjacent the solid body or fluid, electromagnetic energy may be transmitted via the transmitter, and the electromagnetic energy may be received with the receiver to measure a property of the solid body or fluid. | 10-09-2014 |
| 20140311229 | DETERMINATION OF INTERFACIAL OR SURFACE TENSION - A method and apparatus for measuring interfacial or surface tension of a first fluid dispersed in a second fluid, the method involving providing at least one substantially spherical droplet or bubble of the first fluid in a flowing stream of the second fluid in a flow channel, followed by passing the flowing stream comprising the droplet or bubble through a constriction in the flow channel, the constriction being sufficiently constricting so as to cause the droplet or bubble to deform away from its substantially spherical shape and measuring and comparing a physical property of the flowing stream both before and after the constriction, wherein the physical property changes as a result of the deformation of the droplet or bubble, and thereby inferring the interfacial or surface tension from the measured physical property. | 10-23-2014 |
