Abstract: An objective is to provide a nanosized semiconductor particle having a core/shell structure in which a ratio of shell thickness/core portion particle diameter exhibits an optimal ratio in optical properties of optical elements. The particle comprising the structure in which shell portion has a thickness of not more than 1/2 of core portion particle diameter, wherein core portion has a particle diameter of less than 20 nm, and shell portion has a thickness of at least 0.2 nm; core portion has a particle diameter of 20-100 nm, and shell portion has a thickness of at least 1/100 of a core portion particle diameter; core portion possesses at least one element of B, C, N, Al, Si, P, S, Zn, Ga, Ge, As, Se, Cd, In, Sb and Te; and shell portion has a composition exhibiting a larger band gap than that of core portion.

Abstract: A fluorescent labeling substance that is capable of realizing highly appropriate labeling through enhancing of the luminous efficiency of semiconductor nanoparticles or nanorods. The fluorescent labeling substance can be provided by disposing on a surface of shell of nanorods or nanoparticles having a modification group capable of adsorption with a biosubstance, such as protein, nucleic acid or antibody, a region devoid of the above modification group.

Abstract: The present invention is provided with an input device for inputting connection information between information processing equipment and information reproduction equipment connected to the information processing equipment, a storage device for storing the connection information and an output device for outputting the connection information; and a control unit having a recognition device for recognizing the connection between the information processing equipment and the information reproduction equipment connected to the information processing equipment, based on the connection information output from the remote control operating unit.

Abstract: A production method of nano-sized silicon crystal particles comprising the step of allowing monosilane to be oxidized in a liquid phase.

Abstract: An objective is to provide Si/Si3N4 system nanosized particles each exhibiting reduced environmental load together with minimized bio toxicity, excellent chemical stability, enhanced relative light emission intensity, and less degradation of emission intensity during continuous exposure to light; a biosubstance labeling agent capable of keeping on labeling a biosubstance exhibiting luminance enhanced for a long duration with the Si/Si3N4 system nanosized semiconductor particle of the present invention; and also a method of manufacturing the Si/Si3N4 system nanosized semiconductor particle of the present invention.

Abstract: A nanophosphor comprising a nanostructured inorganic crystal having a particle diameter of 2-10 nm, wherein the nanostructured inorganic crystal has a dispersion ratio of luminance intensity distribution of 5-20%.

Abstract: A semiconductor nanoparticle and semiconductor nanorod that have optical characteristics (luminescence intensity and emission lifetime) superior to those of conventional core/shell nanosized semiconductors. There are provided a triple-layer semiconductor nanoparticle, and triple-layer semiconductor nanorod, having an average particle diameter of 2 to 50 nm and comprising a core layer, an interlayer and a shell layer, wherein the layers are composed of different crystals, and wherein the crystal constructing the shell layer exhibits a band gap greater than that of the crystal constructing the core layer, and wherein the crystal constructing the interlayer has a lattice constant assuming a value between those of the crystal constructing the core layer and the crystal constructing the shell layer.

Abstract: A process for the production of semiconductor nanoparticles which realizes both uniform crystallite size and high crystallinity with the agglomeration thereof inhibited. This process is characterized by comprising the step (a) of generating nano-size particles from a semiconductor raw material and dispersing the particles in a gas phase, the step (b) of heat-treating the particles while keeping the particles in a state dispersed in the gas phase, and the step (c) of collecting the heat-treated particles immediately after the heat treatment with a solution of a surface modifier for modifying the surfaces of the particles.

Abstract: A fluorescent substance comprising a plurality of particles of (Yx,Gd1-x)BO3:Euy (0.4?x?0.9, 0<y?0.3), wherein a half-band width in a profile of “charge amount vs. number distribution” of the particles measured by a charge amount distribution analyzer is 0.5-2.0 (fC/10 ?m).

Abstract: Disclosed are a phosphor in which prevention of aging deterioration of luminance and prevention of deterioration of discharging characteristics are compatible, a method of manufacturing the phosphor, and a plasma display panel manufactured by using the phosphor. A phosphor of the invention containing Mn as an activator is one with Mn serving as a major emission, wherein a ratio of an activator concentration in a superficial portion of a phosphor particle to an activator concentration inside the phosphor particle is 0.3-0.7.

Abstract: Disclosed is a method of preparing a phosphor which exhibits superior optical characteristics and improved resistance to deterioration, comprising the steps of subjecting a phosphor precursor obtained by a liquid phase process to a first calcination under an oxygen-containing atmosphere at a prescribed temperature and then subjecting the calcined phosphor precursor to a second calcination at a temperature lower than the temperature of the first calcination.

Abstract: Nanosized semiconductor particles of a core/shell structure is disclosed, wherein the particles each comprise a core and a shell and exhibit an average particle size of not more than 100 nm and a coefficient of variation in core size distribution of not more than 30%.

Abstract: A fluorescent substance comprising a plurality of particles of ZnxSiO4:Mny (1.4?x<2.0, 0<y?0.3), wherein a half-band width in a profile of “charge amount vs. number distribution” of the particles measured by a charge amount distribution analyzer is 0.5-2.0 (fC/10 ?m).

Abstract: An objective is to provide a core/shell type particle phosphor exhibiting an optimal excitation wavelength for fluorescence observation and excellent emission luminance of PL, together with excellent durability, to which particles are produced so as to be suitable for the field of bio-nanotechnology. Disclosed is a core/shell type particle phosphor comprising a core particle phosphor and coated thereon, a shell made of a metal compound having a different composition from a composition constituting the core particle phosphor, wherein the core particle phosphor is a particle phosphor prepared by baking a precursor synthesized via a reactive crystallization method, satisfying a PL (photoluminescence) intensity ratio A of the core particle phosphor to the core/shell type particle phosphor, {PL intensity(core)/PL intensity(core/shell)}; 0.001?A?0.1, and a core/shell type particle diameter of at most 0.1 ?m.

Abstract: Nanosized semiconductor particles of a core/shell structure is disclosed, wherein the particles each comprise a core and a shell and exhibit an average particle size of not more than 100 nm and a coefficient of variation in core size distribution of not more than 30%.

Abstract: Nanoparticles are disclosed, comprising a core and a shell, wherein the core comprises germanium (Ge) and the shell comprises an inorganic material, and the nanoparticles exhibit an average core size of 1 to 50 nm. A biosubstance labeling agent by use thereof is also disclosed.

Abstract: An automatic sound field correcting device applies signal processing onto audio signals of plural channels and outputs processed audio signals to corresponding plural speakers. The automatic sound field correcting device includes: a noise measuring unit for measuring environmental noise level; a signal level determining unit for determining a measurement signal level based on the environmental noise level; and a correcting unit for outputting a measurement signal having the determined measurement signal level to perform automatic sound field correction.

Abstract: Disclosed are a phosphor in which prevention of aging deterioration of luminance and prevention of deterioration of discharging characteristics are compatible, a method of manufacturing the phosphor, and a plasma display panel manufactured by using the phosphor. A phosphor of the invention containing Mn as an activator is one with Mn serving as a major emission, wherein a ratio of an activator concentration in a superficial portion of a phosphor particle to an activator concentration inside the phosphor particle is 0.3-0.7.

Abstract: A phosphor comprising phosphor particles containing a phosphor base material dispersed with an activator and a co-activator, wherein a concentration of the co-activator is lower at a surface than in an interior of each particle.

Abstract: In the automatic sound field correcting device, a plurality of audio signals to be reproduced by a plurality of speakers are input, and the signal processing is applied on the corresponding signal transmission paths. The measurement signal is supplied for the respective signal transmission paths, and output by the corresponding speakers. The sound of the output measurement signal is collected and the detection signal of the collected sound is generated. The equalizer gain values are determined based on the detection signals. By determining the identical equalizer gain values for the plural signal transmission paths for which the phases of the audio signals are to be matched, the phases of the signals on those signal transmission paths are matched, and the strange auditory feeling due to the phase mismatch can be reduced.