30results about How to "Efficient productivity" patented technology

A rare earth magnet is prepared by disposing a R¹-T-B sintered body comprising a R¹₂T₁₄B compound as a major phase in contact with an R²-M alloy powder and effecting heat treatment for causing R² element to diffuse into the sintered body. The alloy powder is obtained by quenching a melt containing R² and M. R¹ and R² are rare earth elements, T is Fe and/or Co, M is selected from B, C, P, Al, Si, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, Zr, Nb, Mo, Ag, In, Sn, Sb, Hf, Ta, W, Pt, Au, Pb, and Bi.

A pneumatic tire provided with a noise damper in the tire cavity, which can maintain high-speed durability and productivity while also reducing cavity resonance, comprising a tread having a width TW in contact with the ground during travel, in which a noise damper made of a sound-absorbing material is attached to the tire internal surface in order to reduce cavity resonance, wherein the noise damper is at least one continuous ribbon made of a sound-absorbing material and having a width W and a thickness E, which is fixed over an attachment width Wc to the tire internal surface over a range of at least 30% of the inside of the tread in the radial direction, the start end and terminal end which are the two ends of the continuous ribbon are disposed in such a way as to be offset from each other in the axial direction, and the continuous ribbon forms, together with the tire internal surface, a continuous groove having a groove width D which is at least equal to 10% of the width W of the continuous ribbon.

An HSG-Si layer is formed on a wafer under a uniform temperature condition. An apparatus for forming the HSG-Si layer includes a housing forming a process chamber, a first heater on which the wafer is positioned fixed in place at the bottom of the process chamber, a second heater at the top of the process chamber, and a thermal insulator which prevents the heat generated by the first heater from being transferred to the outside of the process chamber. A temperature control system regulates the temperature of the heaters. A method of forming the HSG layer includes steps of placing the wafer on the first heater, using the heaters to remove moisture from the wafer, injecting a source gas of the HSG-Si toward the upper surface of the wafer to form amorphous silicon on the wafer, and annealing the wafer for a predetermined period of time to transform the amorphous silicon into an HSG-Si layer. During the steps of forming the HSG-Si layer, the temperatures of the first and second heaters are regulated to maintain the surface temperature of the wafer constant.

The present invention relates to isolated haemoglobin from worms belonging to the Nereididae family and its use in cell culture medium, in preservation solutions and as artificial oxygen carrier for transfusion.

A process for catalytic addition of haloalkanes to alkenes involving the step of reacting the haloalkane with the alkene in the presence of a catalyst. The catalyst is an organophosphite compound represented by the following formula: P(ORa)(ORb)(ORc), where Ra, Rb, and Rc are each an alkyl group or an aralkyl group. The haloalkane is as follows: (i) CR1R2R3R4, wherein (a) each of R1, R2, R3 and R4 is selected from the group consisting of a chlorine atom, a bromine atom or an iodine atom; or (b) R1 is selected from the group consisting of a linear alkyl group; a halo-substituted linear alkyl group; an aralkyl group; an aralkyl group substituted with at least one of a halogen atom on the alkyl portion thereof or a halogen atom, alkyl group, alkoxy group or -CO2R10 wherein R10 is a C1-C4 alkyl group on the aryl portion thereof; an aryl group and an aryl group substituted with at least one of a chlorine atom, a fluorine atom, an alkoxy group or a -CO2R11 group, wherein R11 is a C1-C4 alkyl group; and R2, R3 and R4 are as follows: R2 is an iodine atom and R3 and R4 are each a halogen atom except R3 and R4 are not each a bromine atom or R2 and R3 are each a bromine atom and R4 is a halogen atom. The catalyzed addition of the haloalkane to the alkene proceeds without any other components present in an excess amount, by weight, of the combined amount of the haloalkane, alkene and organophosphite catalyst compound.

A cable has a conductor keeper, multiple bare conductors, a dielectric tape, a plastic jacket and two copper cylinders. The conductor keeper has multiple grooves. Each bare conductor is mounted in a corresponding groove of the conductor keeper and has a first end and a second end. The first end and second end of the bare conductor protrude out of the conductor keeper respectively so as to form two spaces. The dielectric tape is wrapped around the conductor keeper. The plastic jacket is coated around the dielectric tape. Two copper cylinders are mounted in the spaces of the bare conductors respectively to make the bare conductors surround the copper cylinders and the bare conductors connect to each other in parallel. Therefore, the skin effect is minimized and the bare conductors are efficient in that power consumption and emission of carbon dioxide during copper-smelting are significantly reduced.

It is an object to provide a product having a good crystal particle size distribution of a high-purity potassium fluorotantalate crystal or a high-purity potassium fluoroniobate crystal without using a physical method for particle classification. To that end, a method for manufacturing a high-purity potassium fluorotantalate crystal or a high-purity potassium fluoroniobate crystal is used, wherein the recrystallizing step comprising a first cooling process of cooling a saturated solution with a temperature of 60° C. to 90° C. obtained in the dissolving step at a cooling speed of T° C./hour until the solution temperature of the saturated solution becomes a temperature of the range of 35 to 50° C., and a second cooling process of cooling the solution at a cooling speed of [T−18]° C./hour to [T−1]° C./hour from the end of the first cooling process to the solution temperature becoming a temperature of 10 to 20° C.

A method produces a 2′-trifluoromethyl-substituted aromatic ketone and includes reacting a 2-halogen-substituted benzotrifluoride compound with magnesium metal to convert the compound to a Grignard reagent; and reacting the Grignard reagent with an acid anhydride; and then hydrolyzing the resultant to produce a 2′-trifluoromethyl-substituted aromatic ketone. The method of producing a 2′-trifluoromethyl-substituted aromatic ketone enables 2′-trifluoromethyl-substituted aromatic ketone to be produced without using expensive raw materials by generating a Grignard reagent as an intermediate and reacting this Grignard reagent with an acid anhydride in an efficient productivity. The 2′-trifluoromethyl-substituted aromatic ketone that is produced by the method of producing a 2′-trifluoromethyl-substituted aromatic ketone can be used as fine chemicals, raw materials for pharmaceuticals and agrochemicals, raw materials for resins and plastics, electronics and information related materials, optical materials, and the like.

The present disclosure relates to a method for preparing L-cysteine crystals, and L-cysteine crystals prepared by the method. Through the method for preparing L-cysteine crystals of the present disclosure, L-cysteine crystals can be obtained from a natural L-cysteine fermentation broth with a high recovery rate and/or purity without a chemical reaction or the use of an artificial synthetic compound.