Abstract:
A cable coupler including an external cylinder mechanism having an inner conductor for electrically connecting the inner conductor itself to the outer conductors of the shielded cables, an outer conductor having a larger diameter than the inner conductor, a gap portion disposed between the inner conductor and the outer conductor, and capacitors arranged in the gap portion, for electrically connecting between the outer conductor and the inner conductor, an inner potion of the external cylinder mechanism being able to be opened and closed along a longitudinal direction, an internal coupling mechanism placed inside the inner conductor and having connecting pins for holding the core wires of the shielded cables, for electrically connecting between the core wires of the shielded cables, and a base for holding the external cylinder mechanism and for electrically connecting the external cylinder mechanism to an external conductor.
Abstract:
The present invention provides; a process for producing a compound (IV) comprising a step of reacting a compound (I) with a compound (II) in the presence of an optionally substituted cyclic secondary amine to obtain a compound (III) and a step of sequentially or simultaneously eliminating R1 and R2 from the compound (III), and then cyclizing the R1- and R2-eliminated compound to obtain the compound represented by the formula (IV); a process for producing a high purity compound (IV); an intermediate thereof; and a process for producing an intermediate.
Abstract:
Disclosed is a method for optical resolution of an alkylpiperidin-3-yl carbamate, the method including bringing an RS mixture of an alkylpiperidin-3-yl carbamate into contact with an optically active tartaric acid in the presence of a solvent.
Abstract:
The present invention relates to a method of protecting a hydroxyl group, which includes reacting a hydroxyl group-containing compound with a compound represented by the formula (I): wherein R is a phenyl group optionally having substituent(s), an alkyl group optionally having substituent(s) or a benzyl group optionally having substituent(s), and X is a halogen atom, in the presence of an acid catalyst to substitute the hydrogen atom of the hydroxyl group of the hydroxyl group-containing compound with a protecting group represented by the formula (II): wherein R is as defined above. The present invention provides a method capable of introducing an acetal type protecting group into a hydroxyl group under mild conditions, and a protecting reagent therefor and a method of producing the protecting reagent.
Abstract:
A method of carrying out laser processing on a wafer having a plurality of parallel streets on the front surface along the streets, comprising the steps of: carrying out a first laser processing step of carrying out laser processing along streets formed in one half area of the wafer by carrying out a laser beam application step for applying a laser beam along the streets by positioning the outermost street on one side in the indexing-feed direction of the wafer right below a condenser and an indexing-feed step for positioning a street adjacent to the street which has undergone the laser beam application step on the wafer right below the condenser sequentially; and carrying out a second laser processing step of carrying out laser processing along streets formed in the other half area of the wafer by carrying out a laser beam application step for applying a laser beam along the streets by positioning the outermost street on the other side in the indexing-feed direction of the wafer which has undergone the first laser processing step right below the condenser and an indexing-feed step for positioning a street adjacent to the street which has undergone the laser beam application step on the wafer right below the condenser sequentially.
Abstract:
A folding electric has an upper unit and lower unit. A hinge connects the upper unit to the lower unit. The hinge includes at least a perpendicular opening and closing shaft to open and close the upper unit with respect to the lower unit and a horizontal rotation shaft, fixed vertically to the surface of the lower unit, to rotate the upper unit with respect to the lower unit coming in contact with each other.
Abstract:
A method of forming embrittled areas in multiple layers inside a wafer so as to enable the wafer to be divided correctly even at areas where embrittled areas intersect. In a first direction embrittling step an embrittled area is formed as a bottom layer, in a second direction embrittling step embrittled areas are formed as a bottom layer and a second layer, in the first direction embrittling step the embrittled areas are formed as a second layer and a third layer, and thereafter, the second direction embrittling step and the first direction embrittling step are alternately implemented, and finally, in the second direction embrittling step, embrittled area is formed as a top layer, so that a length of an unprocessed area is contained within a range that does not interfere with division.
Abstract:
A fold-type cellular phone has a top unit, a bottom unit and a hinge coupling together the top unit and the bottom unit while allowing the top unit to turn and swivel with respect to the bottom unit. The top unit is first unfolded from a first folded position to an attitude angle of 160 to 170 degrees, and swiveled by 180 degrees to be folded onto the bottom unit in a second folded position at an attitude angle of 180 degrees. The swivel movement of the top unit causes a cam assembly to turn the top unit from the attitude angle of 160-170 degrees to an attitude angle of 180 degrees in the second folded position, thereby allowing the top unit to assume a suitable attitude with respect to the bottom unit.
Abstract:
A laser beam processing machine comprising a path distribution means for distributing a pulse laser beam oscillated by pulse laser beam oscillation means to a first path and a second path alternately, and one laser beam that passes through one of the paths and is converged by one condensing lens and the other laser beam that passes through the other path and is converged by the condensing lens are applied at different focusing points which have been displaced from each other in the direction of the optical axis, alternately with a time lag between them.