Abstract: A signal processing circuit includes a production part configured to produce a first analog signal, an A/D conversion part configured to convert the first analog signal output from the production part to a first digital signal, a processing part configured to process the first digital signal output from the A/D conversion part into a second digital signal, and a D/A conversion part configured to convert the second digital signal to a second analog signal and output the second analog signal via an output terminal.

Abstract: A signal processing circuit includes an encoder configured to encode a digital signal inputted thereto and output an encode signal, and a memory electrically connected to a first input terminal and the encoder. The memory is configured to store information based on the encode signal outputted from the encoder therein, based on a first write signal inputted via the first input terminal.

Abstract: A camera device (1) includes an imaging unit (2) which outputs a long exposure signal and a short exposure signal in one field period. A face detection unit (8) detects a face area from an image captured by the imaging unit (2). The weighting processing unit (12) applies a weighting process to luminance data of the long exposure signal in the detected face area using a weighting constant for reducing the luminance level of the long exposure signal. If the luminance level of the weighting-processed long exposure signal rises to a predetermined saturation level or higher, an exposure control unit (15) performs exposure control using the long exposure signal and the short exposure signal. This can suppress occurrence of a noise due to a short exposure signal (flickering) in the face area, thereby improving visibility in the face area.

Abstract: A camera device with a rotary base has an automatic panning function of imaging a predetermined zone while reciprocating in a preset panning direction. The camera device includes: an imaging unit configured to image a subject and output a video signal; a rotary base configured to cause the imaging unit to rotate in a panning direction and a tilting direction; a motion and face detecting unit configured to detect the motion or face of the subject based on the video signal output from the imaging unit; and a tilt control instruction creating unit configured to create a tilt control instruction based on the detection result from the motion and face detecting unit and give the tilt control instruction to the rotary base to cause the imaging unit to rotate in the tilting direction.

Abstract: A variable focal lens which does not require a reduction of a zoom factor and eliminates an origin sensor is provided. A microcomputer 15 functions as a focus adjustment section which controls a stepper motor 13 to move a focusing ring 5 for a focus adjustment. The microcomputer 15 causes the focusing ring 5 to move by a first moving distance in a first moving direction toward one of a FAR side and a NEAR side, and then to move the focusing ring 5 by a second moving distance in a second moving direction opposite to the first moving direction, and set the point where the focusing ring reaches after the movement in the second moving direction as a reference point for adjustment, and the microcomputer 15 causes the focusing ring 5 to move from the reference point for adjustment in the first moving direction within a range equal to or less than the second moving distance to carry out the focus adjustment.

Abstract: The present invention provides a film composition effective for correcting irregularities on the skin surface, which has stretchability and flexibility as a result of crosslinkable protein microparticles in the film composition being crosslinked by transglutaminase, as well as superior air permeability and moisture evaporation properties as a result of forming a film with the crosslinkable protein microparticles.

Abstract: A novel process which can simply prepare a crosslinked hyaluronic acid gel having a small crosslinking agent content and exhibiting excellent viscoelasticity is provided. A process for preparing a crosslinked hyaluronic acid gel, comprising stirring and mixing a mixture containing 10 W/V % or more of hyaluronic acid, a crosslinking agent and water under acidic or alkaline condition.

Abstract: A load driving device including a semiconductor switch arranged in a current path extending from a power supply to a load. A control circuit controls activation and deactivation of the semiconductor switch. The control circuit deactivates the semiconductor switch when it is determined that overcurrent is flowing through the current path. A current detector detects current that is flowing through the current path. The control circuit determines that overcurrent is flowing when the current detector continuously detects current that is greater than a threshold value over a predetermined detection time. The detection time is set to be shorter than the time from when the current in the current path exceeds the threshold value to when an increase in resistance value of the semiconductor switch resulting from heat generated by the current lowers the current to the threshold value.

Abstract: A method of catalytic reaction uses a micro-reactor (1) with a metal catalyst (5) or a metal complex catalyst (5) as a solid phase supported on the inner wall (4c) of a channel (4), a solution (7) dissolving a reactant as a liquid phase and hydrogen (9) as a gas phase are flown through the channel (4) in pipe flow state, and the reaction of the solution (7) and the gas (9) accelerated by the metal catalyst (5) or the metal complex catalyst (5) is conducted by three phase catalytic reaction of solid-liquid-gas phases. The metal catalyst (5) or the metal complex catalyst (5) is incorporated in a polymer, and hydrogenation reaction by three phase catalytic reductive reaction of a substance to be reduced can be conducted in short time at good yield. For hydrogenation reaction of unsaturated organics, the rate of reaction and yield are high when palladium catalyst is used, and carbonylation reaction can be conducted if carbon monoxide is used instead of hydrogen.

Abstract: The invention provides a novel immobilized Lewis acid catalyst which exhibits high catalytic activity in an aqueous solution and which permits recovery and reuse or long-term continuous use. The invention relates to an immobilized Lewis acid catalyst comprising a solid substance and a Lewis acid supported on the surface of the solid substance by chemical bonding, wherein the surface of the solid substance and the peripheries of the Lewis acid are coated with an ionic liquid, more specifically, an immobilized Lewis acid catalyst comprising a solid substance such as silica gel or an organic polymer and a Lewis acid stable even in water which is supported on the surface of the solid substance by chemical bonding, wherein the surface of the solid substance and the peripheries of the Lewis acid are completely or partially coated with a hydrophobic ionic liquid; a process for the production of the catalyst; use thereof; and a process for the preparation of compounds with the catalyst.

Abstract: The present invention provides a cationic polymer which is much closer to the component of a human body, and capable of forming a polyion complex together with an anionic material such as hyaluronic acid. The cationized hyaluronic acid of the present invention is a hyaluronic acid wherein at least one part of hydroxylic hydrogen atoms of hyaluronic acid is replaced with a group having a quaternary ammonium cation group. The cationized hyaluronic acid can be synthesized by reacting hyaluronic acid with a cationizing agent such as glycidyltrialkyleammonium halide. The cationized hyaluronic acid of the present invention can form a polyion complex gel with hyaluronic acid or the like in the presence of water.

Abstract: A variable focal lens which does not require a reduction of a zoom factor and eliminates an origin sensor is provided. A microcomputer 15 functions as a focus adjustment section which controls a stepper motor 13 to move a focusing ring 5 for a focus adjustment. The microcomputer 15 causes the focusing ring 5 to move by a first moving distance in a first moving direction toward one of a FAR side and a NEAR side, and then to move the focusing ring 5 by a second moving distance in a second moving direction opposite to the first moving direction, and set the point where the focusing ring reaches after the movement in the second moving direction as a reference point for adjustment, and the microcomputer 15 causes the focusing ring 5 to move from the reference point for adjustment in the first moving direction within a range equal to or less than the second moving distance to carry out the focus adjustment.

Abstract: A method of catalytic reaction uses a micro-reactor (1) with a metal catalyst (5) or a metal complex catalyst (5) as a solid phase supported on the inner wall (4c) of a channel (4), a solution (7) dissolving a reactant as a liquid phase and hydrogen (9) as a gas phase are flown through the channel (4) in pipe flow state, and the reaction of the solution (7) and the gas (9) accelerated by the metal catalyst (5) or the metal complex catalyst (5) is conducted by three phase catalytic reaction of solid-liquid-gas phases. The metal catalyst (5) or the metal complex catalyst (5) is incorporated in a polymer, and hydrogenation reaction by three phase catalytic reductive reaction of a substance to be reduced can be conducted in short time at good yield. For hydrogenation reaction of unsaturated organics, the rate of reaction and yield are high when palladium catalyst is used, and carbonylation reaction can be conducted if carbon monoxide is used instead of hydrogen.

Abstract: The invention provides a color-developing composition without using a pigment or dye and capable of being colored sustainably and stably after mixing two liquid phases which are colorless before mixing. The composition consists of two discrete liquid phases, wherein the refractive index of each liquid phase is identical to each other at a point within the wavelength range from 400 nm to 800 nm, wherein a continuous layer and a dispersion layer are formed by mixing and dispersing said two phases whereby developing a color. Alternatively, the composition is a powder dispersion consisting of a liquid phase and a silica powder-containing solid phase, wherein said liquid phase has a refractive index n1 and said silica has a refractive index n2, which satisfy Equation (1): |n1?n2|<0.05??(1) whereby developing a color on the basis of the difference in the refractive index at the interface between the liquid phase and the solid phase.

Abstract: The present invention provides an improved elastic material which is free of roller abrasion when used in development rollers and overcomes disadvantages of the conventional silicone rollers of deterioration in the abrasion resistance, an elastic roller employing such elastic materials, and an electrophotographic apparatus and electrostatic recording apparatus incorporating such rollers. The elastic material satisfies a relationship represented by the following equation: log{(Tb·Eb)?1}??0.0011(Hd)2+0.1154(Hd)?5.6 where Tb is the tensile strength (N/mm2), Eb is the tension fracture elongation (%) and Hd is the Asker C hardness (°). Further, the present invention provides a novel developer carrier for use with an imaging apparatus and an imaging apparatus incorporating the developer carrier. The developer carrier includes an electrically conductive elastic layer and is arranged in contact with, or in the proximity of, an imaging body.

Abstract: [PROBLEMS] A novel process which can simply prepare a crosslinked hyaluronic acid gel having a small crosslinking agent content and exhibiting excellent viscoelasticity is provided. [MEANS TO SOLVE] A method of producing cross-linking hyaluronic acid gel, comprising stirring and mixing a mixture containing 20 W/V % or more of hyaluronic acid, a crosslinking agent and water under acidic or alkaline condition.

Abstract: In a conductive roller having a rotation shaft and a conductive elastic layer arranged around the rotation shaft, a resin coating layer including a particle having JIS A hardness of 10-99 and an average particle size of 2-30 ?m. An image forming apparatus utilizes the conductive roller mentioned above. Herewith, the image forming apparatus, which has excellent toner carrying property and toner charge property, provides a high quality image with no image unevenness and no image overlapping, and has an excellent durability, and the image forming apparatus installing the above conductive roller are provided.

Abstract: The invention provides a color-developing composition without using a pigment or dye and capable of being colored sustainably and stably after mixing two liquid phases which are colorless before mixing. The composition consists of two discrete liquid phases, wherein the refractive index of each liquid phase is identical to each other at a point within the wavelength range from 400 nm to 800 nm, wherein a continuous layer and a dispersion layer are formed by mixing and dispersing said two phases whereby developing a color.

Abstract: An electroconductive roller working stably in all environmental conditions without any large-capacity power supply and which is suitable for use in a system of which the power source is controlled for a constant current. The electroconductive roller has a resistance of 1.times.10.sup.3 to 1.times.10.sup.12 .OMEGA. when applied with a voltage of 500 V at a temperature of 25.degree. C. and relative humidity of 50% and has K.sub.HH .ltoreq.K.sub.NN .ltoreq.K.sub.LL, where K is a ratio of roller resistance at an application of 500 V to roller resistance at an application of 2,000 V, K.sub.HH is the ratio K at ambient conditions of 35.degree. C. and 85% relative humidity, K.sub.NN is the ratio K at ambient conditions of 25.degree. C. and 50% relative humidity, and K.sub.LL is the ratio K at ambient conditions of 10.degree. C. and 15% relative humidity.

Abstract: The electroconductive polyurethane foam according to the present invention is obtained by adding and dispersing, in the composition constituting polyurethane foam, a substance with electron conduction mechanism, and a substance with ionic conduction mechanism and mechanically agitating the resultant mixture in the presence of inert gas. The substance with ionic conduction mechanism is an antistatic agent selected from cationic surfactant, anionic surfactant, ampholytic surfactant, and non-ionic surfactant.