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119results about How to "Strong action" patented technology

Multi-Pitch Screw and Method and Apparatus for manufacturing Multi-Pitch Screw

InactiveUS20070264100A1Strong anti loosen actionLarge effectiveNutsMetal-working apparatusEngineeringHelix
To present a method of manufacturing a multipitch screw easily by using flat dies suited to mass production. A flat die 4 includes linear ordinary screw threads 40a, and multipitch screw threads 40b consecutive to the ordinary screw threads 40a, slightly shorter in height than the ordinary screw threads 40a, with both side walls formed alternately and consecutively, alternating between a section departing from the central line 40c of screw threads and an approaching section along a central line 40c, and symmetrically to the central line 40c of screw threads. After forming the tacks of a constant lead angle screw on the outer circumference of a shaft-like blank piece by the ordinary screw threads 40a, tracks of a multipitch screw are formed by the multipitch screw threads 40b, and therefore the tracks of a multipitch screw varying in the force applied at the time of rolling can be formed easily.
Owner:NAGOYA INDUSTRIAL SCIENCE RESEARCH INST

Method for controlling the dishing problem associated with chemical-mechanical planarization (CMP) during manufacture of copper multilayer interconnection structures in ultra large-scale integrated circuits (ULSI)

Provided is a method of chemical-mechanical planarization of copper multilayer interconnection structures and of controlling the dishing problem associated therewith comprising: (a) preparing a slurry by (i) diluting SiO2 hydrosol with deionized water; (ii) admixing a chelating agent and adjusting the pH to between 9.5 to 11.5; and (iii) admixing nonionic surfactant(s) and oxidant(s); (b) applying said slurry to said copper multilayer interconnection structures; and (c) polishing said copper multilayer interconnection structures with polishing pad(s). The flow speed is 200-5000 ml/min, the temperature is 20-40° C., the rotation speed is 60-120 rpm, the pressure is 100-250 g/cm2, and the polishing speed can be 200-1100 nm/min. The process involves 1-5 min for polishing the copper and then 30-60 sec for polishing the copper, the barrier layer, and the dielectric layer. Consistent polishing speeds for the copper, the barrier layer, and the dielectric layer are achieved, which effectively reduces the dishing problem. At the same time, the method reduces the contamination of the surface with metal ions.
Owner:LIU YULING +5

Health-care product for nourishing and protecting livers

InactiveCN102000259AAbundant resourcesAbundant health resourcesDigestive systemPlant ingredientsDigestionRhizome
The invention discloses a health-care product for nourishing and protecting livers, which is characterized by comprising the following active constituents (in part by weight): 18-20 parts of fructus citri sarcodactylis, 10-15 parts of emblic leafflower fruit, 9-14 parts of poria, 8-13 parts of manyflower solomonseal rhizome, 7-11 parts of lucid ganoderma, 8-12 parts of hawthorn, 8-15 parts of kudzu roots, 4-7 parts of pearl, 3-6 parts of honeysuckle flower and 4-8 parts of liquorice. The health-care product for nourishing and protecting livers has the effects of protecting the livers, soothing the livers and regulating qi, clearing heat and detoxicating, promoting digestion and invigorating stomachs as well as harmonizing the stomach and relieving pains and is a new-generation health-care green food.
Owner:惠州力康堂生物保健有限公司

Method for preparing nicotinamide-coated multivesicular liposomes

The invention relates to a method for preparing nicotinamide-coated multivesicular liposomes. The nicotinamide-coated multivesicular liposomes are prepared from phospholipid, neutral lipid, cholesterol, an organic solvent, a hydrophilic emulsifier, nicotinamide, amino acid, an osmotic pressure regulator and deionized water. The method comprises the steps: dissolving the phospholipid, the cholesterol and the neutral lipid in the organic solvent, so as to obtain an organic phase; uniformly mixing the nicotinamide, the amino acid, the osmotic pressure regulator and the deionized water, so as to obtain an internal water phase; homogenizing the organic phase component, and adding the internal water phase component into the organic phase component, so as to prepare a W/O primary emulsion; mixing the hydrophilic emulsifier, the amino acid, the osmotic pressure regulator and the deionized water, and carrying out dispersing, so as to obtain an external water phase; homogenizing the external water phase component, adding the W/O primary emulsion component into the external water phase component, carrying out homogenizing, then, carrying out ultrasonic treatment, and then, cooling the mixture to room temperature with stirring, so as to form a W/O/W multiple emulsion; dispersing the multiple emulsion into an amino acid solution, introducing nitrogen gas into the solution to remove the organic solvent, thereby obtaining a nicotinamide-coated multivesicular liposome suspension. According to the method, the stability of the nicotinamide is improved.
Owner:SHANGHAI INST OF TECH
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