Abstract: In a core bit formed with a boring blade at a front end thereof and integrally formed with a mounting portion, at a rear end portion thereof, formed with a guide portion in a cylindrical shape mounted to a chuck portion formed at a concrete drill, a ring-like seal member forming a seal between the mounting portion and a side of the chuck portion is formed at the guide portion in the cylindrical shape of the core bit.

Abstract: An electronic apparatus includes a clock oscillator which supplies a clock signal, a processor which generates an internal clock on the basis of the clock signal supplied from the clock oscillator, and a control unit which controls a frequency of the internal clock in accordance with a ratio of an executable instruction count per unit time to a clock count per unit time of the internal clock generated by the processor.

Abstract: A method of evaluating laser trimming of a semiconductor device having a thin film resistor is disclosed. The method includes the steps of providing the thin film resistor and laser trimming the thin film resistor by creating a first trim cut. The first trim cut bisects the thin film resistor such that the thin film resistor is divided into a first portion and a second portion. Also, the method involves measuring the insulation resistance of the thin film resistor. In addition, the method involves evaluating the trim cut based on the measured insulation resistance.

Abstract: A method of laser trimming a semiconductor device having a plurality of thin film resistors is disclosed. The method includes choosing a linear trimming direction in which a linearly polarized laser beam will be applied to the thin film resistors to thereby create trim cuts in the thin film resistors. The linear trimming direction is chosen to ensure that the linearly polarized laser beam forms complete trim cuts in the thin film resistors and such that strip-like uncut parts are unlikely to be generated. The method also includes forming trim cuts in the thin film resistors by applying the linearly polarized laser beam to the thin film resistors in the linear trimming direction only. Accordingly, it is possible to reduce the generation of strip-like uncut parts when the thin film resistor is laser-trimmed using the linearly polarized laser beam.

Abstract: A semiconductor manufacturing device includes a prober whose needles are at once engaged for contacting pads of two chip forming regions within a wafer. In one chip forming region, trimming is performed, while in the other chip forming region, inspecting posterior to trimming is performed.

Abstract: According to one embodiment, an information recording method acquires a recording target video/audio content, divides the acquired recording target video/audio content into a plurality of data units, compares the obtained plurality of data units with a plurality of data units included in a video/audio content stored in a storage unit in advance, and based on the comparison result, deletes, of identical data units, a data unit belonging to the recording target video/audio content other than a data unit stored in the storage unit, and records, in the storage unit, the recording target video/audio content together with playback control information for complementing the deleted data unit upon accessing the remaining data unit.

Abstract: In a core bit formed with a drill portion in a cylindrical shape formed with a boring blade on one end side thereof and a mounting portion in a cylindrical shape mounted to a chuck portion of a concrete drill on other end side of the drill portion, formed with an engaging portion capable of being engaged with an engaging portion on a side of the chuck portion at an outer peripheral face of the mounting portion for transmitting rotation of a side of the concrete drill via the engaging member, the outer peripheral face of the mounting portion on a side of the boring blade of the engaging member is formed with a flange portion in a shape of a flange having a diameter larger than an outer diameter of the engaging member.

Abstract: In a core bit formed with a boring blade at a front end thereof and integrally formed with a mounting portion, at a rear end portion thereof, formed with a guide portion in a cylindrical shape mounted to a chuck portion formed at a concrete drill, a ring-like seal member forming a seal between the mounting portion and a side of the chuck portion is formed at the guide portion in the cylindrical shape of the core bit.

Abstract: A semiconductor manufacturing device includes a prober whose needles are at once engaged for contacting pads of two chip forming regions within a wafer. In one chip forming region, trimming is performed, while in the other chip forming region, inspecting posterior to trimming is performed.

Abstract: A method for separating a lactone-containing high-molecular weight compound comprising subjecting a mixture of a lactone-containing high-molecular weight compound having, as its side-chain, at least one of a lower alkenyl group and a lower alkoxy group and its analogous compound(s) to either one or both steps in any order of a step (A) for adsorbing the mixture to a nonionic adsorption resin and eluting with an aqueous solvent containing silver ions, and a step (B) for adsorbing the mixture to a basic active alumina and eluting with an organic solvent to separate each of the compounds.

Abstract: A gene encoding D-sorbitol dehydrogenase (SLDH); a process for producing SLDH by culturing host cells transformed by an expression vector having the above gene; and a process for processing L-sorbose or 2-keto-L-gulonic acid (2KLGA) by using the above culture. 2KLGA is an important intermediate in the production of L-ascorbic acid. Thus, a process for producing L-ascorbic acid from the 2KLGA obtained by the above process is also provided.

Abstract: The present invention provides a cyclic lipopeptide acylase which may effectively deacylate the acyl side chain of a cyclic lipopeptide compound, specifically FR901379 Substance or its analog thereof shown by the following general formula [I], and a process for production of a cyclic peptide compound which comprises the use of said acylase.

Abstract: The present invention provide a gene encoding D-sorbitol dehydrogenase (SLDH), a method for producing SLDH by culture of a host cell transformed with a vector expressing this gene and a method for producing L-sorbose or 2-keto-L-gulonic acid (2KLGA) using the culture. 2KLGA is an important intermediate for the production of L-ascorbic acid. Therefore, the present invention also provides a method for producing L-ascorbic acid from the 2KLGA obtained by the above-mentioned method.

Abstract: An electronic apparatus includes a clock oscillator which supplies a clock signal, a processor which generates an internal clock on the basis of the clock signal supplied from the clock oscillator, and a control unit which controls a frequency of the internal clock in accordance with a ratio of an executable instruction count per unit time to a clock count per unit time of the internal clock generated by the processor.

Abstract: A method for separating a lactone-containing high-molecular weight compound comprising subjecting a mixture of a lactone-containing high-molecular weight compound having, as its side-chain, at least one of a lower alkenyl group and a lower alkoxy group and its analogous compound(s) to either one or both steps in any order of a step (A) for adsorbing the mixture to a nonionic adsorption resin and eluting with an aqueous solvent containing silver ions, and a step (B) for adsorbing the mixture to a basic active alumina and eluting with an organic solvent to separate each of the compounds.

Abstract: A method for separating a lactone-containing high-molecular weight compound comprising subjecting a mixture of a lactone-containing high-molecular weight compound having, as its side-chain, at least one of a lower alkenyl group and a lower alkoxy group and its analogous compound(s) to either one or both steps in any order of a step (A) for adsorbing the mixture to a nonionic adsorption resin and eluting with an aqueous solvent containing silver ions, and a step (B) for adsorbing the mixture to a basic active alumina and eluting with an organic solvent to separate each of the compounds.

Abstract: There is provided a cyclic lipopeptide acylase which is capable of deacylating the acyl side chain of a cyclic lipopeptide compound, e.g. Substance FR901379 or its analog, of the following general formula [I] with effectiveness as well a method of producing a cyclic peptide compound which comprises using the acylase. [wherein R1 is acyl; R2 is hydroxy or acyloxy; R3 is hydrogen or hydroxy; R4 is hydrogen or hydroxy; R5 is hydrogen or hydroxysulfonyloxy; and R6 is hydrogen or carbamoyl.

Abstract: There is provided a cyclic lipopeptide acylase which is capable of deacylating the acyl side chain of a cyclic lipopeptide compound, e.g. Substance FR901379 or its analog, of the following general formula [I] with effectiveness as well a method of producing a cyclic peptide compound which comprises using the acylase. [wherein R1 is acyl; R2 is hydroxy or acyloxy; R3 is hydrogen or hydroxy; R4 is hydrogen or hydroxy; R5 is hydrogen or hydroxysulfonyloxy; and R6 is hydrogen or carbamoyl.

Abstract: The present invention relates to a method for separating a lactone-containing high-molecular weight compound having an alkyl group as its side chain from a lactone-containing high-molecular weight compound having an alkenyl group as its side chain by using a sulfonic acid group-containing cation exchange resin pretreated with silver ions.

Abstract: In a pipe forming process using bending rolls, load applied to an upper roll is reduced to suppress the deflection of the upper roll, thereby suppressing creation of large end gap at the longitudinal center of the pipe, thus enabling production of high-strength, thick-walled elongated pipes. This is achieved either by (1) setting the roll spacing L between lower rolls to a value greater than the sum of the diameter Dwu of the upper roll 34 and the diameter Dwl of each of the lower rolls 32, and setting the amount S of tightening of the upper roll 34 with respect to the lower rolls 32 to a value greater than the radius Rwl of each of the plural rolls; or by (2) effecting pipe forming work on the sheet material such that the spacing L of the lower rolls 32 satisfies the following condition: (Dp+Dwl)>L≧0.