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65results about How to "High reproducibility" patented technology

Manufacturing method of liquid ejection head

A manufacturing method of a liquid ejection head including an ejection outlet forming member provided with an ejection outlet for ejecting liquid and a flow passage communicating with the ejection outlet is constituted by the steps of: preparing a substrate on which a flow passage wall forming member for forming a part of a wall of the flow passage and a solid layer having a shape of a part of the flow passage contact each other, wherein the flow passage wall forming member has a height, from a surface of the substrate, substantially equal to that of the solid layer; providing a first layer, on the solid layer and the flow passage wall forming member, formed of a negative photosensitive resin material for forming another part of the wall of the flow passage; exposing to light a portion of the first layer correspondingly to the another part of the wall of the flow passage; providing a second layer, on the exposed first layer, formed of a negative photosensitive resin material to constitute the ejection outlet forming member; exposing to light a portion of the second layer correspondingly to the ejection outlet forming member; and forming the ejection outlet and another part of the flow passage by removing unexposed portions of the first layer and the second layer.
Owner:CANON KK

Low back pressure saturation method for loess liquidation experiment

The invention discloses a low back pressure saturation method for loess liquidation experiment. The method comprises the following steps: preparing an original or remolded loess test sample; mounting an experiment device; checking the experiment device; preheating the experiment device for more than 20 minutes; mounting the test sample; charging water into a pressure chamber, subsequently adjusting the confining pressure and the back pressure to be zero, zeroing the pore water pressure and the volume change, and finally adjusting the initial shaft pressure to be zero; initializing the confining pressure and the back pressure, and after the confining pressure and the back pressure are stabilized, gradually exerting the confining pressure and the back pressure in sequence step by step. The method adopts the loess test sample which is saturated by using a low back pressure saturation method, the saturability is greater than about 95%, the reproducibility of the experiment is remarkably improved when being compared with that of water head saturation, the analysis on the original loess micro structure before and after the back pressure saturation shows that the horizontal and vertical structure of the test sample is generally complete when the low back pressure saturation method is adopted, the result shows that under the low back pressure condition, the saturability can be improved by using the method, the structure of the test sample is not damaged, and the method has the characteristics of high saturability, relatively high control precision and the like.
Owner:王萍

Photo-sensor circuit with shutter function and operating method

A photo-sensor circuit according to an embodiment of the present invention comprises a photo-detecting element (PD) for detecting a light signal and converting the same signal into an electric signal, a first MOS transistor (QT) for charging and discharging parasitic capacitance (C1), a capacitor (C2) for accumulating a terminal voltage of the photo-detecting element as a pixel signal, a second MOS transistor (Q2) for transferring a parasitic capacitance charge from the photo-detecting element to the capacitor (C2), a third MOS transistor (Q3) for amplifying the terminal voltage of the capacitor and a fourth MOS transistor (Q4) for selectively outputting an amplified pixel signal. In the above structure, the first MOS transistor and the second MOS transistor are turned ON for a certain period of time before accumulation of a pixel signal to equalize terminal voltages of the photo-detecting element and the capacitor by charging and discharging the parasitic capacitance of the photo-detecting element and the capacitor, the second MOS transistor is turned OFF and the capacitor is open after a certain period of time of accumulation of the pixel signal and then the fourth MOS transistor is switched ON. This photo-sensor circuit offers an advantageous feature of producing a pixel signal having high reproducibility.
Owner:HONDA MOTOR CO LTD

Niobium-doped lithium titanate anode material for lithium ion battery and method for preparing same

The invention relates to a niobium-doped anode material for a lithium ion battery and a method for preparing the same, belonging to the technical filed of the anode material for the lithium ion battery. The niobium-doped anode material for the lithium ion battery has the chemical formula of Li4Ti5-xNbxO12, wherein the x is equal to 0.05-0.1. The method for preparing the niobium-doped anode material for the lithium ion battery comprises the following steps: mixing niobium source, TiO2 source and lithium source, grinding the mixture by a ball grinder for 6-10h, putting the ground mixture in a muffle furnace, making the ground mixture react at 800-900 DEG C for 16-24h, and naturally cooling the product of reaction to room temperature to obtain the niobium-doped anode material for the lithium ion battery, which has the chemical formula of Li4Ti5-xNbxO12. The method for preparing the niobium-doped anode material for the lithium ion battery uses the raw materials of wide source and no organic chelating agent, is convenient to operate, is controllable and repeatable and ensures that the particles of the niobium-doped anode material for the lithium ion battery are small and are uniform in size and have high crystallinity and the niobium-doped anode material for the lithium ion battery has higher electrochemical performance and is prepared with low cost.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY

Electrochemical method for non-eletricity enriching and measuring trace amount tervalence inorganic arsenic in water system

The invention relates to an electrochemical detection method for measuring the concentration of trivalent arsenic in a water system without electricity enrichment, which comprises utilizing a three-electrode system which is formed by a gold electrode, a reference electrode and a counter electrode to oxygenize the surface of the gold electrode to be gold trioxide in a detection pool, immersing gold trioxide into beta-D-glucose solution, deacidizing gold trioxide to be a nano-gold film, immersing gold electrode into 0.1M phosphate buffer solution (the concentration detecting range is 10.0nM-5.0muM) which is contained with trivalent arsenic under test, adsorbing trivalent arsenic through the nano-gold film, leading arsenic to be enriched on the surface of the nano-gold film, inserting the gold electrode and the reference electrode which are enriched with arsenic into the electrochemical detection tank, starting an electrochemical working station to scan, leading arsenic which is enrichedin the process of scanning to do redox reaction on the surface of the gold electrode, getting the oxidation peak current value which has corresponding relationship with trivalent arsenic, thereby measuring the concentration of arsenic solution, achieving the detection of trivalent arsenic in high sensitivity, and solving the problem of applying high-concentration acid medium.
Owner:NANJING UNIV
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