Abstract: An analog-digital converter includes: comparators disposed to correspond to analog signals which are converted into digital signals and configured to compare a voltage value of the analog signal, which is converted into the digital signal, with a voltage value of a predetermined reference signal; counters disposed to correspond to the comparators and configured to count a count value at the time point when the comparison process of the corresponding comparator is finished; and a determiner configured to determine a time point when all the comparators finish their comparison processes.

Abstract: A helical antenna includes a ground plate, a first helical portion spirally wound perpendicular to the plate, a second helical portion spirally wound perpendicular to the plate and surrounding the first helical portion radially outward of the first helical portion, and a feeder circuit. The circuit includes an oscillator, a divider connected to the oscillator, a first phase shifter connected between a first output terminal of the divider and a feeding point of the first helical portion, and a second phase shifter connected between a second output terminal of the divider and a feeding point of the second helical portion. Length of one turn of the first helical portion is equal to a result of multiplication of a wavelength of oscillation of the oscillator by N. Length of one turn of the second helical portion is equal to a result of multiplication of the wavelength by M (M>N).

Abstract: The present invention relates to a process for producing an ether compound in a simplified, efficient manner, including the step of reacting a hydroxyl group-containing compound with an epoxy compound in the presence of an oxide of a metal of Group 4 of the Periodic Table on which a sulfate ion is supported, wherein a sum of a diffraction intensity of a (111) crystal lattice plane and a diffraction intensity of a (?111) crystal lattice place of the metal oxide is 2000 cps or larger as measured by subjecting the metal oxide to powder X-ray diffraction analysis.

Abstract: The present invention relates to a process for producing polyglyceryl ether derivatives in which the polyglyceryl ether derivatives are produced from an alcohol (except for glycidol and glycerol) and glycidol in the presence of an aluminosilicate which is ion-exchanged with at least one cation selected from the group consisting of ammonium ions, alkali metal ions and alkali earth metal ions. In the process of the present invention, a removal step of the catalyst can be simplified, and the polyglyceryl ether derivatives can be produced in an economical and efficient manner.

Abstract: In an antenna device, a first helical part of a first antenna and a second helical part of a second antenna is disposed in a dielectric body on a ground plane. Each helical part is helically wound up in a direction perpendicular to the ground plane and includes a plurality of one-turn portions. Each one-turn portion of the first helical part has a peripheral length of M times a wavelength ? of use, where M is a positive natural number. One of the one-turn portions of the second helical part closest to the ground plane has a peripheral length Ks that is N times the wavelength ? of use, where N is a positive natural number greater than M. One of the one-turn portions of the second helical part farthest away from the ground plane has a peripheral length Ke, and (M·?)<Ke<Ks(=N·?).

Abstract: An A/D converter includes: plural comparators to which reference voltages as ramp waves different from each other are supplied, which are configured to compare the supplied reference voltages with an analog input signal; and plural latches arranged so as to correspond to the plural comparators, which are configured to count comparison time of the corresponding comparators, to stop counting when an outputs of the comparator is inverted and to store the count value, wherein the plural reference voltages are offset by an arbitrary voltage at the same time point.

Abstract: A helical antenna includes a ground plate, a first helical portion spirally wound perpendicular to the plate, a second helical portion spirally wound perpendicular to the plate and surrounding the first helical portion radially outward of the first helical portion, and a feeder circuit. The circuit includes an oscillator, a divider connected to the oscillator, a first phase shifter connected between a first output terminal of the divider and a feeding point of the first helical portion, and a second phase shifter connected between a second output terminal of the divider and a feeding point of the second helical portion. Length of one turn of the first helical portion is equal to a result of multiplication of a wavelength of oscillation of the oscillator by N. Length of one turn of the second helical portion is equal to a result of multiplication of the wavelength by M (M>N).

Abstract: Provided is a hair dyeing composition, containing a first part containing (a) a nitrogen-containing compound expressed by the general formula (1) or a salt thereof and a second part containing a component (b) of an oxidizing agent, wherein a pH upon use is 7.5 to 12, wherein R1 and R3 to R5 represent H, a hydroxy group, and an alkyl group with C12 or less optionally having a substituent, R2 represents a hydroxy group, —R or —OR, in which R means the same as R3 to R5, and two or more of R1 to R5 may be taken together to form a 3 to 8 membered-ring optionally having a substituent.

Abstract: An analog-digital converter includes: comparators disposed to correspond to analog signals which are converted into digital signals and configured to compare a voltage value of the analog signal, which is converted into the digital signal, with a voltage value of a predetermined reference signal; counters disposed to correspond to the comparators and configured to count a count value at the time point when the comparison process of the corresponding comparator is finished; and a determiner configured to determine a time point when all the comparators finish their comparison processes.

Abstract: Provided is a hair dyeing composition, containing a first part containing (a) a nitrogen-containing compound expressed by the general formula (1) or a salt thereof and a second part containing a component (b) of an oxidizing agent, wherein a pH upon use is 7.5 to 12, wherein R1 and R3 to R5 represent H, a hydroxy group, and an alkyl group with C12 or less optionally having a substituent, R2 represents a hydroxy group, -R or —OR, in which R means the same as R3 to R5, and two or more of R1 to R5 may be taken together to form a 3 to 8 membered-ring optionally having a substituent.

Abstract: Provided is a hair dyeing composition, containing a first part containing (a) a nitrogen-containing compound expressed by the general formula (1) or a salt thereof and a second part containing a component (b) of an oxidizing agent, wherein a pH upon use is 7.5 to 12, wherein n=1 or 2, R1 and R3 to R5 represent H, a hydroxy group, and an alkyl group with C12 or less optionally having a substituent, R2 represents a hydroxy group, —R or —OR, in which R means the same as R1 to R5, and two or more of R1 to R5 may be taken together to form a 3 to 8 membered-ring optionally having a substituent.

Abstract: Provided is a hair dyeing composition, containing a first part containing (a) a nitrogen-containing compound expressed by the general formula (1) or a salt thereof and a second part containing a component (b) of an oxidizing agent, wherein a pH upon use is 7.5 to 12, wherein n=1 or 2, R1 and R3 to R5 represent H, a hydroxy group, and an alkyl group with C12 or less optionally having a substituent, R2 represents a hydroxy group, —R or —OR, in which R means the same as R1 to R5, and two or more of R1 to R5 may be taken together to form a 3 to 8 membered-ring optionally having a substituent.