41results about How to "Formation" patented technology

There is provided an interior permanent magnet rotary motor that can reduce cogging torque and can also reduce the amount of permanent magnet used, without reducing torque.

In an interior permanent magnet rotary motor of the present invention having N slots 6 and P permanent magnet magnetic pole sections 11, in which P/N is set in the range of ⅔ to 43/45 and Po in a irreducible fraction Po/No of the P/N is set to be an odd number, an pole arc ratio ψ_p is defined to be the ratio of θpp/θp where an angle between two line segments assumed for a pair of flux barriers 21, each of which connects the center of a rotor core and one of a plurality of corners of the section of each flux barrier that is closest to the surface of the rotor core 9 is indicated by the θpp and an angle obtained by dividing the full circumference angle (360°) of the rotor core by the number of the permanent magnet pole sections is indicated by the θp. Then, the pole arc ratio indicated by Ψ_p is determined is so as to satisfy the relation of Ψ_p=2mP/N+P/4LCM (P, N)−2n, in which LCM (P, N) is the least common multiple between P and N, m and n are arbitrary natural numbers, and the Ψ_p is larger than zero but smaller than one.

A soldering flux which is suitable as a no-clean post flux in flow soldering and which can prevent the formation of whiskers which tends to occur when soldering electronic parts to a printed circuit board using a lead-free solder (such as Sn-3.0Ag-0.5Cu) having a higher Sn content and a higher melting point than the eutectic solder contains, in addition to a rosin as a base resin and an activator, 0.2-4 mass % of at least one compound selected from acid phosphate esters and derivatives thereof. The formation of whiskers can be more effectively prevented by carrying out soldering in a nitrogen atmosphere.

Non-oriented electrical steels are widely used as the magnetic core material in a variety of electrical machinery and devices, particularly in motors where low core loss and high magnetic permeability in all directions of the strip are desired. The present invention relates to a method for producing a non-oriented electrical steel with low core loss and high magnetic permeability whereby the steel is produced from a steel melt which is cast as a thin strip or sheet, cooled, hot rolled and/or cold rolled into a finished strip. The finished strip is further subjected to at least one annealing treatment wherein the magnetic properties are developed, making the steel strip of the present invention suitable for use in electrical machinery such as motors or transformers.

The present invention relates to the production of proteins in a cell or host cell. The invention uses a TRAnscription Pause (TRAP) sequence to enhance a protein expression characteristic of a protein expression unit. The TRAP sequence is thought to prevent, at least in part, formation of antisense RNA or to, at least in part, prevent transcription to enter the protein expression unit. In one embodiment, the invention provides a method for expression of at least one protein of interest in a cell comprising providing the cell with at least one protein expression unit that comprises a promoter functionally linked to an open reading frame encoding at least one protein of interest, characterized in that the protein expression unit further comprises at least one TRAP sequence and wherein the TRAP sequence is functionally located downstream of the open reading frame and at least in part prevents formation of antisense RNA. In another embodiment, the TRAP sequence is functionally located upstream of the promoter and at least in part prevents transcription to enter the expression unit. Preferably, the expression protein unit further comprises at least one STabilizing Anti-Repressor sequence.

The present invention relates to a drill comprising a cemented carbide or high speed steel substrate and a coating wherein the coating comprises: a first layer system having a multilayered structure covering substantially the whole active part of the drill, a second layer system having a multilayered structure covering only the tip area of the drill. Drills according to the present invention have good wear resistance and improved properties when reconditioning the drill. The present invention also relates to a method of making a drill according to the present invention.

In accordance with the present invention, there is provided a method for manufacturing a leadframe. The method comprises the initial step of bonding a primary leadframe to an adhesive tape layer, the primary leadframe including a die paddle and a plurality of leads which extend at least partially about the die paddle in spaced relation thereto. Thereafter, a photo resist is applied to the primary leadframe and to the adhesive tape layer. The photo resist is then patterned to define at least one exposed area in each of the leads of the primary leadframe. The exposed areas of the leads are then etched to divide the leads into an inner set which extends at least partially about the die paddle and an outer set which extends at least partially about the inner set. Thereafter, the photo resist is removed from the die paddle and from the inner and outer sets of the leads.

A process for preparing an emulsion or a dispersion comprising crystalline particles of at least one active principal that comprises contacting a solution of at least one solute in a solvent or mixture of solvents in a first flowing stream with a non-solvent in a second flowing stream wherein the non-solvent and solvent are not miscible with each other, so as to form an emulsion or a dispersion. Super saturation is brought about by suitable means, and the emulsion or dispersion is subjected to ultrasonic irradiation to mediate crystal nucleation.

A hybrid supercapacitor, including at least one negative electrode that includes a statically capacitive active material, an electrochemical redox active material, or a mixture thereof, at least one positive electrode that includes a statically capacitive active material, an electrochemical redox active material, or a mixture thereof, at least one separator that is situated between the at least one negative electrode and the at least one positive electrode, and an electrolyte composition, with the condition that at least one electrode includes a statically capacitive active material, and at least one electrode includes an electrochemical redox active material, the electrolyte composition being a liquid electrolyte composition and including at least one liquid, aprotic, organic solvent, at least one conducting salt, and at least one additive.

A method for promoting skin basement membrane formation comprises administering matrix metalloproteinase inhibitor or matrix metalloproteinase inhibitor and matrix protein production promoting agent. The matrix metalloproteinase inhibitor is N-hydroxy-2(R)-[[(4-methoxyphenyl)sulfonyl](3-picolyl)amino]-3-methylbutanamide hydrochloride.

The present invention relates to a method for preparation of organofluoro compounds containing radioactive isotope fluorine-18. More particularly, the present invention relates to a method for preparation of organofluoro compound by reacting fluorine salt containing radioactive isotope fluorine-18 with alkyl halide or alkyl sulfonate in the presence of alcohol of Chemistry (FIG. 1) as a solvent to obtain high yield of organofluoro compound. Synthesis reaction according to the present invention may be carried out under mild condition to give high yield of the organofluoro compounds and the reaction time is decreased, and thereby is suitable for the mass production of the organofluoro compounds.

The present invention provides a method for producing lithium carbonate, that can shorten the time required in the production of lithium carbonate and has excellent maintenance property and production efficiency without forming fixed matters that require complicated procedures to remove in a reaction apparatus.

Provided is a method of etching a silicon nitride film, which comprises subjecting the silicon nitride film located on copper to dry etching using a mixture of fluorocarbon gas and an inert gas as the reaction gas, the fluorocarbon gas containing CF₄ and CHF₃ supplied at flow rates in a ratio of 3:7 to 0:1 or contains CF₄ and CH₂F₂ supplied at flow rates in a ratio of 2.5:1 to 0:1, thereby suppressing the formation of copper fluoride.