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Results 1001–1025 of 2,458

Long working distance incoherent interference microscope
Patent • #7,034,271. A full-field imaging, long working distance, incoherent interference microscope suitable for three-dimensional imaging and metrology of MEMS devices and test structures on a standard microelectronics probe station. A long working distance greater than 10 mm allows standard probes or probe cards to be used. This enables nanometer-scale 3-dimensional height...

Long working distance interference microscope
Patent • #6,721,094. Disclosed is a long working distance interference microscope suitable for three-dimensional imaging and metrology of MEMS devices and test structures on a standard microelectronics probe station. The long working distance of 10-30 mm allows standard probes or probe cards to be used. This enables nanometer-scale 3-D height profiles of...

Long-Lasting Lithium Primary Batteries
Featured Opportunity • Long-lasting lithium primary batteries with a wide operational temperature range and increased safety. There is an ever-growing need to produce safer batteries that have longer run times and better temperature responses. Many current systems use lithium primary batteries because of their high energy densities and wide operational temperature range. However,...

Low Cost TiO2 Nanoparticles
Featured Opportunity • TEM image of TiO2 nanoparticles taken at 50KX magnification demonstrates discrete and stable end product. Current methods of producing titanium dioxide nanoparticles require costly surfactants and/or high temperature and pressure processing. Processing under these conditions results in nanoparticles with extremely wide particle size distributions and significant particle agglomeration. These problems...

Low energy high pressure miniature screw valve
Patent • #7,147,205. A low energy high pressure screw valve having a valve body having an upper portion and a lower portion, said lower portion of said valve body defining an inlet flow passage and an outlet flow passage traversing said valve body to a valve seat, said upper portion of said...

Low Inductance DC Power Bus
Featured Opportunity • A low-inductance DC power bus for high frequency, high temperature operation in electric drive systems and next-generation power electronics A new generation of power electronic conversion systems are being enabled by wide-bandgap (WBG) devices. Applications in civilian and defense sectors are already realizing improved power density and efficiency in power...

Low power photomultiplier tube circuit and method therefor
Patent • #7,030,355. An electrical circuit for a photomultiplier tube (PMT) is disclosed that reduces power consumption to a point where the PMT may be powered for extended periods with a battery. More specifically, the invention concerns a PMT circuit comprising a low leakage switch and a high voltage capacitor positioned between...

Low power sensor for NOx detection
Patent • #11573217. Detection and capture of toxic nitrogen oxides (NOx) is important for emissions control of exhaust gases and general public health. The low power sensor provides direct electrically detection of trace (0.5-5 ppm) NO2 at relatively low temperatures (50° C.) via changes in the electrical properties of nitrogen-oxide-capture active materials....

Low power, scalable multichannel high voltage controller
Patent • #7,348,688. A low voltage control circuit is provided for individually controlling high voltage power provided over bus lines to a multitude of interconnected loads. An example of a load is a drive for capillary channels in a microfluidic system. Control is distributed from a central high voltage circuit, rather than...

Low power, scalable multichannel high voltage controller
Patent • #7,012,342. A low voltage control circuit is provided for individually controlling high voltage power provided over bus lines to a multitude of interconnected loads. An example of a load is a drive for capillary channels in a microfluidic system. Control is distributed from a central high voltage circuit, rather than...

Low pressure drop advanced swirl technology gas filter
Patent • #10,537,839. A media-free filter device for a supercritical fluid process is disclosed. The media-free filter device includes a first pipe section connected in flow communication with a closed-loop system for a supercritical fluid. A y-pipe segment intersects the first pipe section at an intersection joint. The intersection joint intersects at...

Low soot stoichiometric compression-ignition combustion
Patent • #11629661. A combustion system including a combustion mechanism that injects oxygenated fuel into a combustion chamber. The oxygenated fuel mixes with the intake air in the combustion chamber where the air-fuel ratio in a portion of the combustion chamber is stoichiometric. The combustion mechanism includes an ignition mechanism that ignites...

Low Temperature Gasoline Combustion
Featured Opportunity • A high-performance engine technology to replace diesel engines While electrification is playing a major role in reducing greenhouse gas (GHG) emissions from automobiles and light trucks, practical considerations are likely to make internal combustion (IC) engines the power system of choice for heavy duty (HD) line-haul trucks, some medium-duty (MD)...

Low-cost, Low-energy Absorption with Porous Liquids (LEAP-L)
Featured Opportunity • LEAP-L technology offers a cost-effective, energy-efficient, and sustainable solution for gas capture and separation via the use of environmentally friendly materials The reliance on energy sources like biogases, natural gas, and fossil fuels in industrial processes has increased the release of contaminants into the atmosphere. Contaminants can contribute to long-term...

Low-frequency atomic electrometry
Patent • #11585841. In a method of atomic electrometry, EIT spectroscopy is performed on host atoms of an alkali metal in a vapor cell. The EIT spectroscopy indicates a resonant energy of a probed Rydberg state of the host atoms. The vapor cell is exposed to an ambient electric field. A shift...

Low-melting point heat transfer fluid
Patent • #7,828,990. A low-melting point, heat transfer fluid made of a mixture of five inorganic salts including about 29.1-33.5 mol % LiNO.sub.3, 0-3.9 mol % NaNO.sub.3, 2.4-8.2 mol % KNO.sub.3, 18.6-19.9 mol % NaNO.sub.2, and 40-45.6 mol % KNO.sub.2. These compositions can have liquidus temperatures below 80.degree. C. for some compositions.

Low-melting point heat transfer fluid
Patent • #7,922,931. A low-melting point, heat transfer fluid comprising a mixture of LiNO.sub.3, NaNO.sub.3, KNO.sub.3, NaNO.sub.2 and KNO.sub.2 salts where the Li, Na and K cations are present in amounts of about 20-33.5 mol % Li, about 18.6-40 mol % Na, and about 40-50.3 mol % K and where the nitrate...

Low-melting point inorganic nitrate salt heat transfer fluid
Patent • #7,588,694. A low-melting point, heat transfer fluid made of a mixture of four inorganic nitrate salts: 9-18 wt % NaNO.sub.3, 40-52 wt % KNO.sub.3, 13-21 wt % LiNO.sub.3, and 20-27 wt % Ca(NO.sub.3).sub.2. These compositions can have liquidus temperatures less than 100 C; thermal stability limits greater than 500 C;...

Low-power MEMS wakeup system
Patent • #10,481,672. There is provided a near-zero-power wakeup system in which a MEMS sensor for mechanical or acoustic signals is coupled to a very-low-power complementary metal oxide semiconductor (CMOS) application-specific integrated circuit (ASIC). Power consumption can be minimized by operating the ASIC with sub-threshold gate voltages.
Results 1001–1025 of 2,458