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43results about How to "Many limitation" patented technology

Marker device for X-ray, ultrasound and MR imaging

An imaging marker comprised of glass and iron-containing aluminum microspheres in a gel matrix which shows uniformly good contrast with MR, US and X-Ray imaging. The marker is small and can be easily introduced into tissue through a 12-gauge biopsy needle. The concentration of glass microspheres and the size dictate the contrast for US imaging. The contrast seen in MRI resulting from susceptibility losses is dictated by the number of iron-containing aluminum microspheres; while the artifact of the marker also depends on its shape, orientation and echo time. By optimizing the size, iron concentration and gel binding, an implantable tissue marker is created which is clearly visible with all three imaging modalities.
Owner:SUNNYBROOK & WOMENS COLLEGE HEALTH SCI CENT

Method of optimizing the design, stimulation and evaluation of matrix treatment in a reservoir

A method for designing acid treatments provides for the selection of optimal treatment for well stimulation wherein reservoir characteristics are obtained to further select the reaction kinetic data on the minerals of interests, the treatment to the reservoir is scaled up using a mathematical model and real time damage are computed based on bottomhole pressure and injection rate and compared to that predicted by the mathematical model to adjust the treatment. The model generated facilitates optimization of matrix treatments by providing a rapid quantitative evaluation of various treatment strategies for a formation. Stimulation with non-traditional fluid recipes containing mixtures of inorganic and organic acids, and chelating agents can be readily computed. The computed values can then be used in an economic model to justify the additional costs associated with the use of the non-traditional fluids. Apart from optimizing matrix treatments, the method can be used as a development tool for new fluid systems, as a tool for prediction and removal of inorganic scale and for fluid compatibility testing such as that required in water flooding projects.
Owner:SCHLUMBERGER TECH CORP

Release surfaces, particularly for use in nanoimprint lithography

The addition of thin coatings (less than and approaching monomolecular coatings) of persistent release materials comprising preferred compounds of the formula:
RELEASE-M(X)n-1
RELEASE-M(X)n-m-1Qm,
Or
RELEASE-M(OR)n-1—, wherein
    • RELEASE is a molecular chain of from 4 to 20 atoms in length, preferably from 6 to 16 atoms in length, which molecule has either polar or non-polar properties;
    • M is a metal atom, semiconductor atom, or semimetal atom;
    • X is a halogen or cyano, especially Cl, F, or Br;
    • Q is hydrogen or alkyl group;
    • M is the number Q represents
    • R is hydrogen, alkyl or phenyl, preferably hydrogen or alkyl of 1 to 4 carbon atoms; and
    • N is the valence −1 of M,
    • and n-m-1 is at least 1
provides good release properties. The coated substrates are particularly good for a lithographic method and apparatus for creating ultra-fine (sub-25 nm) patters in a thin film coated on a substrate is provided, in which a mold having at least one protruding feature is pressed into a thin film carried on a substrate. The protruding feature in the mold creates a recess of the thin film. The mold is removed from the film. The thin film then is processed such that the thin film in the recess is removed exposing the underlying substrate. Thus, the patterns in the mold is replaced in the thin film, completing the lithography. The patterns in the thin film will be, in subsequent process, reproduced in the substrate or in another material which is added onto the substrate.
Owner:CHOU

GaN TRANSISTOR WITH INTEGRATED DRAIN VOLTAGE SENSE FOR FAST OVERCURRENT AND SHORT CIRCUIT PROTECTION

A GaN transistor switch SW_MAIN has an integrated drain voltage sense circuit, which provides a drain voltage sense signal VDSEN. The integrated drain voltage sense circuit comprises GaN sense transistor SW_SEN and GaN sense resistor RSEN, which form a resistive divider for sensing the drain voltage of SW_MAIN, and generating the drain sense voltage output VDSEN. Fault detection logic circuitry of a driver circuit generates a fault signal FLT when VDSEN reaches or exceeds a reference voltage Vref, which triggers fast turn-off of the gate of SW_MAIN within less than 100 ns of an overcurrent or short circuit condition. During turn-off, RSEN resets to VDSEN=0. For two stage turn-off, the driver circuit further comprises fast soft turn-off circuitry which is triggered first by the fault signal to pull-down the gate voltage to the threshold voltage, followed by a delay before full turn-off of the gate SW_MAIN by the gate driver.
Owner:GAN SYST

Release Surfaces, Particularly For Use In Nanoimprint Lithography

The addition of thin coatings (less than and approaching monomolecular coatings) of persistent release materials comprising preferred compounds of the formula:
RELEASE-M(X)n−1
RELEASE-M(X)n−m−1 Qm,
or
RELEASE-M(OR)n'1, wherein
RELEASE is a molecular chain of from 4 to 20 atoms in length, preferably from 6 to 16 atoms in length, which molecule has either polar or non-polar properties; M is a metal atom, semiconductor atom, or atom; X is halogen or cyano, especially Cl, F, or Br; Q is hydrogen or alkyl group; m is the number of Q groups; R is hydrogen, alkyl or phenyl, preferably hydrogen or alkyl of 1 to 4 carbon atoms; and n is the valence−1 of M; and n−m−1 is at least 1 provides good release properties. The coated substrates are particularly good for a lithographic method and apparatus for creating ultra-fine (sub-25 nm) patterns in a thin film coated on a substrate is provided, in which a mold having at least one protruding feature is pressed into a thin film carried on a substrate. The protruding feature in the mold creates a recess of the thin film. The mold is removed from the film. The thin film then is processed such that the thin film in the recess is removed exposing the underlying substrate. Thus, the patterns in the mold is replaced in the thin film, completing the lithography. The patterns in the thin film will be, in subsequent processes, reproduced in the substrate or in another material which is added onto the substrate.
Owner:RGT UNIV OF MINNESOTA

Device for dispensing fluids

The invention is a fluid dispensing device suited to be connected, by means of a connection element (220), to a container (C) holding the fluid that can be dispensed from the inside to the outside of the container through an actuator element (400), comprising: a suction duct (240) suited to communicate with the fluid held inside the container (C), a dispenser duct (440) in communication with the outer space with respect to the volume (V) enclosed by the container (C), a suction / compression chamber (300) that can communicate with the suction duct (240) and the dispenser duct (440), a suction valve (260) suited to alternatively allow and prevent the passage of a fluid between the suction duct (240) and the suction / compression chamber (300) when, respectively, the suction valve is closed and open, a dispensing valve (460) suited to alternatively allow and prevent the passage of a fluid between the dispenser duct (440) and the suction / compression chamber (300) when, respectively, the suction valve is closed and open, a tight membrane (500) slidingly coupled with the walls of the suction / compression chamber (300) so that it can be translated in a predetermined direction; both the suction valve (260) and the dispensing valve (460) comprise the membrane (500). The invention concerns also a system for containing and dispensing fluids (F).
Owner:TAPLAST

Inclinometer

Embodiments of the invention provide an inclinometer that is compact, can be easily read with a vertical or horizontal line of sight, and / or readily convey a preferred range of incline angles for an operational sluice box.
Owner:FINLEY JOSEPH B
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