Abstract: To provide a constant current circuit which is capable of not only acquiring characteristics of various sorts of electric circuits even before a trimming adjustment is carried out, performing the trimming adjustment based upon the acquired characteristics, performing trimming processes to both the constant current circuit and a load collectively, and performing an adjustment of a constant current with high precision, but also capable of reducing a total number of manufacturing steps so that a production cost can be lowered, as compared with that of a conventional constant current circuit.

Abstract: The present invention aims at providing. a recycling usable regenerated particle aggregate; a method for allowing stable manufacture of the regenerated particle aggregate; a paper containing the regenerated particle aggregate, the paper exhibiting excellent property in case of newsprint papers, printing papers, book printing papers, and electrophotographic printing papers that use the regenerated particle aggregate, and especially a neutralized paper containing the regenerated particle aggregate; and a coated paper for printing having especially excellent printability, using the regenerated particle aggregate. Problems will be solved by.

Abstract: An organic electroluminescence device, includes: a pair of electrodes; and at least one organic layer including a light emitting layer, the light emitting layer being provided between the pair of electrodes, wherein at least one layer of the at least one organic layer contains a compound represented by formula (I) as defined in the specification.

Abstract: An organic electroluminescence device, includes: a pair of electrodes; and at least one organic layer including a light emitting layer, the light emitting layer being provided between the pair of electrodes, wherein at least one layer of the at least one organic layer contains a compound represented by formula (1) as defined in the specification.

Abstract: Provided is an organic electroluminescence device including: a pair of electrodes; and at least one organic layer including a light-emitting layer being provided between the pair of electrodes, wherein at least any one of the at least one organic layer contains both at least one hydrocarbon compound having an alkyl structure and a charge transporting material.

Abstract: An organic electroluminescence element having at least one organic compound layer including a light-emitting layer, which is disposed between a pair of electrodes, wherein a charge transport layer which contains a charge transporting material and a compound represented by the following formula (1) is disposed adjacent to the light-emitting layer. An organic EL element that exhibits high light-emission efficiency and low driving voltage, and is excellent in drive durability is provided.

Abstract: An organic electroluminescence element having at least one organic compound layer including a light-emitting layer, which is disposed between a pair of electrodes, wherein the light-emitting layer includes a light emitting material, a compound represented by the following formula (1) and a charge transporting material. An organic EL element that exhibits high light-emission efficiency and low driving voltage, and is excellent in drive durability is provided.

Abstract: A license managing apparatus comprises an inputting device, an encrypting device for encrypting information inputted from the inputting device to produce encrypted information, and an outputting device for outputting the encrypted information. The encrypting device encrypts at least identification information of the game apparatus to be licensed and license condition information thereof to produce the foregoing encrypted information. The game apparatus includes an inputting device for inputting the outputted encrypted information, an encryption decoding device for decoding the inputted encrypted information, and a controller for controlling execution of a game program. The game apparatus further includes a storing device for storing identification information of the game apparatus, and a storing device for storing internal information.

Abstract: Provided is a chopper amplifier circuit capable of eliminating an influence of a slew rate of an amplifier and suppressing spike generation to thereby obtain an output signal having little harmonic distortion. The chopper amplifier circuit according to the present invention includes: a first chopper circuit for chopping an input signal by a first pulse and a second pulse shifted from each other in phase by a half cycle, switching a relation of connection between an input terminal pair and an output terminal pair at a timing of the chopping, and outputting the input signal as a modulated signal; an amplifier for amplifying the modulated signal and outputting the modulated signal thus amplified as an amplified signal; a first sample hold circuit for holding the amplified signal at the first pulse and outputting the amplified signal at the second pulse; and a second sample hold circuit for holding the amplified signal at the second pulse and outputting the amplified signal at the first pulse.

Abstract: An organic electroluminescent device includes a pair of electrodes; and an organic layer between the pair of electrodes, which comprises a light-emitting layer and contains a compound represented by the following formula (1): wherein each of R1 to R8 independently represents a hydrogen atom or a substituent, A represents an aromatic ring which may have a substituent, m represents an integer of 2 or greater, and n represents an integer of 1 or greater.

Abstract: A process for preparing a platinum complex represented by the following formula (1) includes reacting a compound represented by the following formula (B-2) and a compound represented by the following formula (B-2?) with a compound represented by the following formula (A-0) to obtain a compound represented by the following formula (C-0); and reacting the compound represented by the formula (C-0) with a platinum salt:

Abstract: An organic electroluminescent device includes a pair of electrodes; and an organic layer between the pair of electrodes, which includes a light-emitting layer and contains a compound represented by the following formula (1): wherein each of R1 to R7 independently represents a hydrogen atom or a substituent with the proviso that at least one of R1 to R7 represents a deuterium atom or a substituent containing a deuterium atom.

Abstract: A four-cycle internal combustion engine with a valve system having improved durability in the case of high revolution speed. The engine includes a cylinder head having a port, and a valve having a stem part continuous with a fillet part for opening or closing the port. A valve spring including inner and outer springs urges the valve in a direction to close the port. A valve guide holds the stem part slidably. A tubular spring guide supports an outer periphery part of an outer spring to prevent lateral deformation of the spring. A top end of the spring guide is positioned above a top end of a valve guide.

Abstract: Provided is a chopper amplifier circuit capable of reducing an offset voltage of a sensor bridge and temperature characteristics of the offset voltage. An offset adjusting voltage generation circuit for generating a voltage equal to an offset voltage of a sensor bridge and an offset temperature characteristics adjusting voltage generation circuit for generating a voltage having temperature characteristics equal to those of the offset voltage are provided. These output voltages are chopper-modulated and subtracted from a chopper-modulated output signal of the sensor bridge.

Abstract: An organic electroluminescent device includes a pair of electrodes; and an organic layer between the pair of electrodes, which includes a light-emitting layers wherein the organic layer contains a compound represented by the following formula (I); and the light-emitting layer contains a iridium complex phosphorescent material: wherein R1, R2, R3, R4, R5, R6, R7 and R8 each represents a hydrogen atom or a substituent, and contiguous substituents of R1 to R8 may be bonded to each other to form a condensed ring; R9 represents an alkyl group, an alkenyl group, an aryl group, a hetero-aryl group, or a silyl group, and each of which group may be substituted with a substituent; and at least one of R1 to R9 represents a deuterium atom or a substituent containing a deuterium atom.

Abstract: To provide a constant current circuit which is capable of not only acquiring characteristics of various sorts of electric circuits even before a trimming adjustment is carried out, performing the trimming adjustment based upon the acquired characteristics, performing trimming processes to both the constant current circuit and a load collectively, and performing an adjustment of a constant current with high precision, but also capable of reducing a total number of manufacturing steps so that a production cost can be lowered, as compared with that of a conventional constant current circuit.

Abstract: A four-cycle internal combustion engine with a valve system having improved durability in the case of high revolution speed. The engine includes a cylinder head having a port, and a valve having a stem part continuous with a fillet part for opening or closing the port. A valve spring including inner and outer springs urges the valve in a direction to close the port. A valve guide holds the stem part slidably. A tubular spring guide supports an outer periphery part of an outer spring to prevent lateral deformation of the spring. A top end of the spring guide is positioned above a top end of a valve guide.

Abstract: Provided is a chopper amplifier circuit capable of eliminating an influence of a slew rate of an amplifier and suppressing spike generation to thereby obtain an output signal having little harmonic distortion. The chopper amplifier circuit according to the present invention includes: a first chopper circuit for chopping an input signal by a first pulse and a second pulse shifted from each other in phase by a half cycle, switching a relation of connection between an input terminal pair and an output terminal pair at a timing of the chopping, and outputting the input signal as a modulated signal; an amplifier for amplifying the modulated signal and outputting the modulated signal thus amplified as an amplified signal; a first sample hold circuit for holding the amplified signal at the first pulse and outputting the amplified signal at the second pulse; and a second sample hold circuit for holding the amplified signal at the second pulse and outputting the amplified signal at the first pulse.

Abstract: Provided is a chopper amplifier circuit capable of reducing an offset voltage of a sensor bridge and temperature characteristics of the offset voltage. An offset adjusting voltage generation circuit for generating a voltage equal to an offset voltage of a sensor bridge and an offset temperature characteristics adjusting voltage generation circuit for generating a voltage having temperature characteristics equal to those of the offset voltage are provided. These output voltages are chopper-modulated and subtracted from a chopper-modulated output signal of the sensor bridge.

Abstract: An organic electroluminescent device is provided and has at least one organic layer including a light-emitting layer between a pair of electrodes. The organic layer contains at least one compound represented by specific formula.