Abstract: A level shifter for converting an input pulse signal of low-voltage amplitude to high-voltage amplitude includes a low voltage circuit configured to generate complementary-pulse signals of low-voltage amplitude from the input pulse signal, and a high voltage circuit configured to generate a pulse signal of high-voltage amplitude based on the complementary-pulse signals. The low voltage circuit, including high-threshold voltage transistors, includes a plurality of inverter circuits connected in cascade and at least one resistive-switch circuit connected between an input and an output of at least one of the plurality of inverter circuits configured to operate as a resistor when in a conductive state.

Abstract: An exercise assisting tool includes a seating surface on which a user is seated, and a body portion having a bottom surface formed in a substantially spherical shape. A height H of the seating surface at a lowermost point is set in a range from 100 mm to 450 mm, and a regulator is further provided to suppress any slippage of buttocks of the user from the seating surface. The exercise assisting tool is structured so that the user seated on the seating surface is allowed to tilt the seating surface in all directions while having the bottom surface in contact with the ground surface.

Abstract: Provided is a bearing device for a beauty/health roller which presents no risk of bathwater or bathtub contamination, is hygienic, is less heavy than conventional ball bearings, is devoid of roller rattle, and exhibits a small rotational resistance of the rollers, and to provide the beauty/health roller having this bearing device. A bearing device 4 for a beauty/health roller is used in a beauty/health roller having a grippable body and a roller 3 arranged at the end portion of the body, and rotatably supports the roller 3 on a supporting shaft 2a provided to the end portion of the body. The bearing device comprises a radial bearing 5 into which the supporting shaft 2a is fitted and which rotatably supports the roller 3 on the supporting shaft 2a; a thrust bearing 6 arranged toward one end face of the radial bearing 5; and a preload-applying member 7 interposed between the radial bearing 5 and the thrust bearing 6.

Abstract: The present invention provides a method which can produce ?-caprolactam with a good selectivity by reacting cyclohexanone oxime with a good conversion in a vapor phase Beckmann rearrangement reaction. Disclosed is a method for producing ?-caprolactam, which comprises performing a vapor phase Beckmann rearrangement reaction of cyclohexanone oxime in the presence of a pentasil type zeolite, wherein the pentasil type zeolite is a zeolite obtained by subjecting a mixture containing a silicon compound, water, and a compound represented by formula (I): [(R1)3N+—(CH2)m—N+(R1)2—(CH2)m—N+(R1)3]·3/n(A)??(I) wherein R1 represents an alkyl group having 1 to 4 carbon atoms, A represents an n-valent anion, m represents an integer of 5 to 7, and n represents an integer of 1 to 3, to a hydrothermal synthesis reaction.

Abstract: A parallel interpolation A/D converter includes a reference voltage generation circuit configured to generate (m+1) different reference voltages VR1-VRm+1, where m is a positive integer, and VR1<VR2, . . . , <VRm<VRm+1, a differential amplifier series including (m+1) differential amplifiers A1-Am+1 configured to amplify voltage differences between the reference voltages VR1-VRm+1 and an input signal voltage, and an operation circuit including a plurality of comparator circuits configured to receive output voltage sets generated by the respective differential amplifiers. The number of comparator circuits varies depending on the value k of the reference voltage VRk, where k is an integer of 2?k?m+1.

Abstract: A plurality of analog signals are input to input terminals of an analog signal processing circuit ANA2 via respective capacitors C. In a bias circuit Bias for supplying a bias voltage such as a signal ground of the analog signals to the analog signal processing circuit ANA2, in an operational amplifier OpAS, a bias voltage VIr is input from a non-inverting input VIP of a built-in differentiate amplifier circuit, an output terminal of the built-in output amplifier circuit OA1 is connected to an inverting input terminal VIM of the differentiate amplifier circuit DA, and thereby a voltage follower is obtained. Furthermore, a plurality of output amplifier circuits OA2 through OAn are provided so that input terminals thereof are connected to output terminals of the differential amplifier circuit DA, and the output terminals are connected to input terminals IN1 through INn of the analog signal processing circuit ANA2.

Abstract: The present invention provides a method which can produce ?-caprolactam with a good selectivity by reacting cyclohexanone oxime with a good conversion in a vapor phase Beckmann rearrangement reaction. Disclosed is a method for producing ?-caprolactam, which comprises performing a vapor phase Beckmann rearrangement reaction of cyclohexanone oxime in the presence of a pentasil type zeolite, wherein the pentasil type zeolite is a zeolite obtained by subjecting a mixture containing a silicon compound, water, and a compound represented by formula (I): [(R1)3N+—(CH2)m—N+(R1)2—(CH2)m—N+(R1)3]·3/n (A) ??(I) wherein R1 represents an alkyl group having 1 to 4 carbon atoms, A represents an n-valent anion, m represents an integer of 5 to 7, and n represents an integer of 1 to 3, to a hydrothermal synthesis reaction.

Abstract: A plurality of analog signals are input to input terminals of an analog signal processing circuit ANA2 via respective capacitors C. In a bias circuit Bias for supplying a bias voltage such as a signal ground of the analog signals to the analog signal processing circuit ANA2, in an operational amplifier OpAS, a bias voltage VIr is input from a non-inverting input VIP of a built-in differentiate amplifier circuit, an output terminal of the built-in output amplifier circuit OA1 is connected to an inverting input terminal VIM of the differentiate amplifier circuit DA, and thereby a voltage follower is obtained. Furthermore, a plurality of output amplifier circuits OA2 through OAn are provided so that input terminals thereof are connected to output terminals of the differential amplifier circuit DA, and the output terminals are connected to input terminals IN1 through INn of the analog signal processing circuit ANA2.

Abstract: In a level shift circuit, including two Nch transistors Tn1, Tn2 receiving a pair of complementary input signals and two Pch Transistors Tp1, Tp2 of which gate terminals are cross-coupled to each other, nodes A and B as the drains of the two Nch transistors Tn1, Tn2 operating in reverse to each other are connected together with a resistance Tp3. The resistance Tp3, constructed of a Pch transistor, is grounded at its gate to be in the normally ON state. For example, when the Nch transistors Tn1 and Tn2 go ON and OFF, respectively, a current initially flows from the high-potential node A through the resistance Tp3 to the low-potential node B, raising the potential at the low-potential node B. Thus, the potential rise at the node B is sped up compared with the case that only the Pch transistor Tp2 becoming ON contributes to the potential rise. This enables high-speed operation of the level shift circuit with a small number of elements.

Abstract: A cleaning apparatus has a compressor (12), an electromagnetic valve (33) connected to the compressor (12), and first to third timers (27 to 29). The first timer (27) sets an open/close time and a close time for repeatedly opening and closing an electromagnetic valve (33). The second timer (28) sets a time for feeding compressed air into a pipe (35). The third timer (29) stops the operation of the second timer (28) until an activation inhibition time elapses from a point at which the pressure of the compressed air has reached a predetermined upper limit, and further permits the operation of the second timer (28) after the activation inhibition time elapses.