Abstract: A first order function generation circuit receives a signal from a temperature sensor circuit, and generates a fist order function control signal V1 that is affected by the ambient temperature. A fourth order and fifth order approximation function generation circuit receives signals from the temperature sensor circuit and from the third order approximation function generation circuit, and generates a fourth and fifth order approximation function control signal V45 that is affected by the ambient temperature. A peak change point adjustment circuit outputs a signal to adjust the value of a peak change point temperature Ti for the third order approximation function generation circuit, the first order generation function circuit and the fourth order and fifth order approximation function generation circuit. A temperature compensation circuit adds together control signals V0, V1, V3 and V5, and outputs the resultant signal Vc.

Abstract: The object of the present invention is to provide a crystal oscillator with one IC capable of effectively responding to specifications or a frequency of an installed set, an output terminal of the oscillator 1 is connected to an input terminal of the inverter 2, an output terminal of which is connected to the first resistor 7 and one terminal of the second resistor 8, the other terminal of the first resistor 7 is connected to one terminal of the first capacitor 9 and an input terminal of the first transistor 3, the other terminal of the first capacitor 9 is connected to one terminal of the first switch 11, and the other terminal of the first switch 11 is grounded, the other terminal of the second resistor 8 is connected to one terminal of the second capacitor 10 and an input terminal of the second transistor 4, the other terminal of the second capacitor 10 is connected to one terminal of the second switch 12, and the other terminal of the second switch 12 is grounded, an output terminal of the first transisto

Abstract: There is provided a temperature-compensated crystal oscillator for reducing a voltage noise of a cubic function control voltage controlling an output frequency of an oscillation circuit. A temperature-compensated crystal oscillator includes a quartz vibrator, an amplifier having an oscillation frequency controller, and a temperature compensation circuit of a crystal oscillation frequency, wherein a reference voltage for a compensation voltage of the temperature compensation circuit is generated using a forward voltage of a diode.

Abstract: In a voltage controlled oscillator including an amplifier, a feedback circuit and a crystal oscillator, two MOS transistors M1, M2 are connected for use as variable capacity elements for the frequency adjustment of the voltage controlled oscillator. Drains of the MOS transistors M1, M2 are respectively connected to an XT terminal and an XTB terminal of the crystal oscillator. Sources of the MOS transistors M1, M2 are made common and connected to a grounding terminal via a capacitor C3. Gates of the MOS transistors M1, M2 are made common, and an added voltage signal of a temperature compensating signal voltage and an external frequency control signal voltage is applied to the common gate terminals of the MOS transistors to thereby perform the frequency control of the oscillator.

Abstract: An acrylic copolymer consisting of a first acrylic monomer represented by the following general formula (1): [where each of R1 and R2 represents an aliphatic hydrocarbon group whose main chain is composed of 3 or less carbon atoms, and each of R3 and R4 represents a hydrocarbon atom], and a second acrylic monomer represented by the following general formula (2): [where at least one of R5 and R6 represents an aliphatic hydrocarbon group whose main chain is composed of 4 to 60 carbon atoms, in the case where one of the R5 and R6 does not represent the aliphatic hydrocarbon group, it represents an aliphatic hydrocarbon group whose main chain is composed of 3 or less carbon atoms, and each of R7 and R8 represents a hydrogen atom], wherein the first acrylic monomer makes up 50 to 99 % of total monomer units in the copolymer.

Abstract: A surface of a steel, as a material for a crankshaft, is nitrocarburized. The steel contains, as alloy elements C having a content 0.10 mass % or more 0.30 mass % or less, Si having a content 0.5 mass % or more and 0.3 mass % or less, Mn having a content 0.3 mass % or more and 1.5 mass % or less, Mo having a content 0.8 mass % or more and 2.0 mass % or less, Cr having a content 0.1 mass % or more and 1.0 mass % or less, and V having a content 0.1 mass % or more and 0.5 mass % or less, with a remainder consisting of Fe and inevitable impurities. The contents of the alloy elements fall within ranges: 2.0 mass %?Mn+Cr+Mo?3.0 mass %, 2.3 mass %?C+Mo+5V ?3.7 mass %, and 2.7 mass %?2.16 Cr+Mo+2.54V?4.0 mass %. If a steel sample extracted from a central portion of the nitrocarburized steel free from an influence of the nitrocarburizing treatment is austenitized at 1200° C.

Abstract: To provide a MOS varactor in which oscillation frequency variation is small and variation in a capacitance changing voltage is small, and a voltage-controlled oscillator using the MOS varactor, as a load capacitor of an oscillating circuit composed of a feedback resistor 1, an amplifier 2, and a crystal vibrator 3, a variable electrostatic capacitor, which is generated between drain/source terminals and a gate terminal of each of MOS transistors 5a and 6a each of which source and drain terminals are short-circuited, is connected. A bulk terminal of each of the MOS transistors 5a and 6a is connected to one terminal of a resistor 19, a voltage is applied to the other terminal of the resistor 19, the bulk terminal of each of the MOS transistors 5a and 6a is connected to one terminal of a capacitor 20, and the other terminal of the capacitor 20 is grounded.

Abstract: The polylactic acid composite material of the present invention comprises a polylactic acid, a low molecular weight compound which has an amide group, and a layered clay mineral that is organically modified by means of an organic onium salt. As a result, a polylactic acid composite material that has a sufficiently rapid crystallization rate, and that is superior in terms of heat resistance, moldability and mold release characteristics can be obtained.

Abstract: It is an object to provide an oscillator starting control circuit capable of shortening a starting time and stably controlling the starting time, and furthermore, stabilizing an oscillating frequency after starting an oscillating circuit. [Means for Resolution] An oscillating circuit (1) is a crystal oscillating circuit in which an input and an output of an inverter (14) are connected to both ends of a crystal oscillator (15) and both ends of a resistor (16), the input is connected to a drain of an MOS variable capacity (10), the output is connected to a drain of an MOS variable capacity (11), a source of the MOS variable capacity (10) is connected to a fixed capacity (12), a source of the MOS variable capacity (11) is connected to a fixed capacity (13), and the other ends of the fixed capacities (12, 13) are connected to a GND.

Abstract: With first, second and third current exchanger circuits cascaded, a current in proportion to a difference between an ambient temperature Ta and a reference temperature Tr is input to the first current exchanger circuit. The first current exchanger circuit supplies a current in proportion to the square of Ta?Tr to the second current exchanger circuit, the second current exchanger circuit supplies a current in proportion to the fourth power of Ta?Tr to the third current exchanger circuit, and the third current exchanger circuit outputs a current in proportion to the fifth power of Ta?Tr. Each of the first, second and third current exchanger circuits has a configuration which does not require a high supply voltage enough to drive a series circuit of three or more diodes.

Abstract: A voltage controlled oscillator enables controlling the MOS transistor threshold voltage independently of the temperature compensation control signal and external voltage frequency control signal. The voltage controlled oscillator has a crystal oscillator and a load capacitance is parallel connected to a crystal oscillator. The load capacitance includes a first MOS transistor comprising a gate terminal and a source/drain terminal formed by shorting the source and drain, and a second MOS transistor comprising a gate terminal and a source/drain terminal formed by shorting the source and drain. First and second control signal generating circuits supply respective control signals to the source/drain terminals and gate terminals of the first and second MOS transistors.

Abstract: In a voltage controlled oscillator including an amplifier, a feedback circuit and a crystal oscillator, two MOS transistors M1, M2 are connected for use as variable capacity elements for the frequency adjustment of the voltage controlled oscillator. Drains of the MOS transistors M1, M2 are respectively connected to an XT terminal and an XTB terminal of the crystal oscillator. Sources of the MOS transistors M1, M2 are made common and connected to a grounding terminal via a capacitor C3. Gates of the MOS transistors M1, M2 are made common, and an added voltage signal of a temperature compensating signal voltage and an external frequency control signal voltage is applied to the common gate terminals of the MOS transistors to thereby perform the frequency control of the oscillator.

Abstract: A method for producing a coumarin compound represented by Formula 1, which comprises a step of reacting a coumarin compound represented by Formula 1 with a compound having an aldehyde group and an activated methylene group; luminous agents for organic EL elements and organic EL elements which all comprise the coumarin compound; and displaying panels and information displaying apparatuses using the organic EL elements: ø(Z)m??Formula 1 wherein in Formula 1, ø is an aromatic ring, heterocycle, or a combination thereof, each Z is the same or a different coumarin group represented by Formula 2; and m is an integer of two or more; Formula 2:

Abstract: An acrylic copolymer consisting of a first acrylic monomer represented by the following general formula (1): [where each of R1 and R2 represents an aliphatic hydrocarbon group whose main chain is composed of 3 or less carbon atoms, and each of R3 and R4 represents a hydrocarbon atom], and a second acrylic monomer represented by the following general formula (2): [where at least one of R5 and R6 represents an aliphatic hydrocarbon group whose main chain is composed of 4 to 60 carbon atoms, in the case where one of the R5 and R6 does not represent the aliphatic hydrocarbon group, it represents an aliphatic hydrocarbon group whose main chain is composed of 3 or less carbon atoms, and each of R7 and R8 represents a hydrogen atom], wherein the first acrylic monomer makes up 50 to 99% of total monomer units in the copolymer.

Abstract: A polymer electrolyte of high durability consistent with the present invention is characterized as including a first repeating unit represented by a general formula —{C(Z1)(Z2)-C(Z3)(Z4-SO3H)}— (where Z1, Z2, Z3, and Z4 are respectively F or Rf1, F or Rf2, F or Rf3, and nothing or Rf4; and each of Rf1, to Rf4 is a perfluoroalkyl group in which the carbon number is from 1 to 10) in a polymer chain, and having an equivalent weight of 2500 g/eq or less.

Abstract: With first, second and third current exchanger circuits cascaded, a current in proportion to a difference between an ambient temperature Ta and a reference temperature Tr is input to the first current exchanger circuit. The first current exchanger circuit supplies a current in proportion to the square of Ta−Tr to the second current exchanger circuit, the second current exchanger circuit supplies a current in proportion to the fourth power of Ta−Tr to the third current exchanger circuit, and the third current exchanger circuit outputs a current in proportion to the fifth power of Ta−Tr. Each of the first, second and third current exchanger circuits has a configuration which does not require a high supply voltage enough to drive a series circuit of three or more diodes.

Abstract: In order to provide an electro luminescent element with high heat endurance and low crystallinity using functional molecules having functions of hole transporting, luminescence, and electron transporting, an electro luminescent element according to the present invention comprises one or more organic compound layers 14 between a first electrode 12 and a second electrode 16, wherein at least one of the organic compound layers 14 is a condensed ring compound derivative represented by the following chemical formula, in which A1 and A2 represent substituents, B1 through B6 represent directly connected or di functional substituents, and R1 and R2 represent functional units having each of the functions of hole transporting, luminescence, and electron transporting, such as triphenylamine, coumarin, and oxadiazole derivative.

Abstract: Quinoline derivatives represented by formula (1) wherein two or more of substituents R1 to R7 are each a group of formula (2). In general formula (2), Q is a carbo- or hetero-aryl group; and the number (n) of double bonds is preferably 1 to 3. Use of such derivatives in an organic EL device provided with a layer of an organic compound and two electrodes sandwiching the layer as the organic compound gives devices emitting yellow to red light with high brightness and high efficiency. Further, doping a hole transport layer with such derivatives realizes organic EL devices capable of emitting lights of resultant colors (e.g., white) composed of lights from light-emitting and hole transport layers.

Abstract: The polylactic acid composite material of the present invention comprises a polylactic acid, a low molecular weight compound which has an amide group, and a layered clay mineral that is organically modified by means of an organic onium salt. As a result, a polylactic acid composite material that has a sufficiently rapid crystallization rate, and that is superior in terms of heat resistance, moldability and mold release characteristics can be obtained.

Abstract: Quinoline derivatives represented by formula (1) wherein two or more of substituents R1 to R7 are each a group of formula (2). It is preferable that among the substituents R1 to R7, at least one of the substituents other than those of general formula (2) be an electron-whithdrawing group. In general formula (2), Q is a carbo- or hetero-aryl group; at least one of the substituents RQ on the group Q is preferably an electron-donating group; and the number (n) of double bonds is preferably 1 to 3. Use of such derivatives in an organic EL device provided with a layer of an organic compound and two electrodes sandwiching the layer as the organic compound gives devices emitting yellow to red light with high brightness and high efficiency. Further, doping a hole transport layer with such derivatives realizes organic EL devices capable of emitting lights of resultant colors (e. g., white) composed of lights from light-emitting and hole transport layers.