Abstract: A polyurethane resin includes a reaction product of a raw material component containing a polyisocyanate, a macropolyol, a hydrophilic group-containing polyol, and a chain extender. The polyisocyanate is an alicyclic polyisocyanate. The macropolyol contains a plant-derived macropolyol. A biomass degree of the reaction product is 30% or more.

Abstract: A substrate for surface acoustic wave element includes: a magnesium/lithium niobate single crystal in which an atomic ratio between Li and Nb satisfies 0.9048?(Li/Nb)?0.9685, and whose Mg content proportion is from 1% by mole or more to 9% by mole or less; or a magnesium/lithium tantalate single crystal in which an atomic ratio between Li and Ta satisfies 0.9048?(Li/Ta)?0.9685, and whose Mg content proportion is from 1% by mole or more to 9% by mole or less.

Abstract: A control device has: an external terminal receiving a control signal; an output setting circuit changing an output state every time a predetermined edge appears in the control signal; an oscillator generating a clock signal; a period detector counting the number of pulses in the clock signal to detect whether or not the control signal has been kept at a predetermined logic level for a predetermined period; an initializing circuit initializing, based on the output of the period detector, the output state specified by the output setting circuit when the control signal is found to have been kept at the predetermined logic level for the predetermined period; and an oscillation control circuit permitting the operation of the oscillator only when the control signal is at the predetermined logic level and inhibiting the operation of the oscillator otherwise.

Abstract: A light emission control device has a drive current feeder supplying a drive current to a light-emitting element, a drive current controller controlling the current level of the drive current based on the number of pulses in an enable signal, and a resetter resetting the controlling of the current level of the drive current when the enable signal has remained in a predetermined logic state for a predetermined period. Thus configured, the light emission control device allows its turning-on and -off and drive current level to be controlled with a single-line interface.

Abstract: The present invention provides a lithium tantalate (LT) single crystal or a lithium niobate (LN) single crystal, which has strong resistance to stress shock or thermal shock, and a surface acoustic wave filter comprising a piezoelectric substrate produced from the single crystal. The lithium tantalate single crystal or lithium niobate single crystal of the invention contains at least one additional element selected from the group consisting of iron, copper, manganese, molybdenum, cobalt, nickel, zinc, carbon, magnesium, titanium, tungsten, indium, tin, rhenium, scandium, rhodium, ruthenium, palladium, silver, platinum, gold, yttrium, neodymium, iridium, germanium, barium, cesium, strontium, gallium, cerium and other transition elements at a ratio of from 0.002 wt % or more to 0.1 wt % or less, and has excellent stress shock characteristics and thermal shock characteristics.

Abstract: A control device has: an external terminal receiving a control signal; an output setting circuit changing an output state every time a predetermined edge appears in the control signal; an oscillator generating a clock signal; a period detector counting the number of pulses in the clock signal to detect whether or not the control signal has been kept at a predetermined logic level for a predetermined period; an initializing circuit initializing, based on the output of the period detector, the output state specified by the output setting circuit when the control signal is found to have been kept at the predetermined logic level for the predetermined period; and an oscillation control circuit permitting the operation of the oscillator only when the control signal is at the predetermined logic level and inhibiting the operation of the oscillator otherwise.

Abstract: A visual restoration aiding device for restoring vision of a patient comprises: a plurality of substrates which are placed on or under a retina of a patient's eye; a plurality of electrodes which are mounted on each substrate to apply an electrical stimulation pulse signal to cells constituting the retina; and a connecting unit which has flexibility and connects the substrates.

Abstract: A light emission control device has a drive current feeder supplying a drive current to a light-emitting element, a drive current controller controlling the current level of the drive current based on the number of pulses in an enable signal, and a resetter resetting the controlling of the current level of the drive current when the enable signal has remained in a predetermined logic state for a predetermined period. Thus configured, the light emission control device allows its turning-on and -off and drive current level to be controlled with a single-line interface.

Abstract: An artificial eye system may include an extracorporeal unit mounted outside a user's body and an intracorporeal unit 3 mounted inside a user's eye. The extracorporeal unit 2 may include a visor and a power supply unit. The visor may include a primary coil, an image receiving element that receives a picture image, a light emitting element that transmits an electric stimulus signal produced based on an image signal from the image receiving element, and an eye-gaze point recognizing unit. The intracorporeal unit may include a secondary coil that is electro-magnetically induced by the primary coil, a light receiving element that receives the electric stimulus signal from the light emitting element, a signal processing circuit that processes the electric stimulus signal received by the light receiving element, and a plurality of electrodes that transmits the electric stimulus signal processed by the signal processing circuit to the retina.

Abstract: A visual restoration aiding device including an electrode array having a plurality of electrodes placed on or under a retina of an eye of the patient for applying an electrical stimulation pulse signal to cells constituting the retina; a photographing unit which photographs an object to be recognized by the patient; a converting unit which converts photographic data transmitted from the photographing unit to data for electrical stimulation pulse signals; and a control unit which outputs an electrical stimulation pulse signal through each electrode based on the data for electrical stimulation pulse signals so as not to simultaneously output the electrical stimulation pulse signals through electrodes arranged within a distance that electrical stimulation pulse signals outputted through the electrodes will interfere with each other and which switches between the electrodes used for outputting the electrical stimulation pulse signals and the electrodes unused for outputting the electrical stimulation pulse signal

Abstract: A visual restoration aiding device for restoring vision of a patient comprises: a plurality of substrates which are placed on or under a retina of a patient's eye; a plurality of electrodes which are mounted on each substrate to apply an electrical stimulation pulse signal to cells constituting the retina; and a connecting unit which has flexibility and connects the substrates.

Abstract: A visual restoration aiding device for restoring vision of a patient comprises: an electrode array having a plurality of electrodes placed on or under a retina of an eye of the patient for applying an electrical stimulation pulse signal to cells constituting the retina; a photographing unit which photographs an object to be recognized by the patient; a converting unit which converts photographic data transmitted from the photographing unit to data for electrical stimulation pulse signals; and a control unit which outputs an electrical stimulation pulse signal through each electrode based on the data for electrical stimulation pulse signals, the control unit controlling the signal output so as not to simultaneously output the electrical stimulation pulse signals through electrodes arranged within a distance that electrical stimulation pulse signals outputted through the electrodes will interfere with each other and the control unit switching between the electrodes used for outputting the electrical stimulation

Abstract: The object of the invention is to provide an artificial eye system which has excellent usability and is practically feasible. In the present invention, an artificial eye system 1 is structured of an extracorporeal unit 2 which is mounted outside a user's body and an intracorporeal unit 3 which is mounted inside a user's eye. The extracorporeal unit 2 is provided with a visor 4 and a power supply unit 5. The visor 4 includes a primary coil 10, an image receiving element 6 which receives a picture image of an outside world, a light emitting element 7 which transmits an electric stimulus signal produced based on an image signal from the image receiving element 6, and an eye-gaze point recognizing unit 13.

Abstract: A method of realizing a series of process using one client application, from when a publisher prepares an electronic book file until when this book file is sold to a client via a network. A publisher terminal (2), a client terminal (3), and an electronic publication service site (4) are connected each other via a network (5). A publisher prepares an electronic book file comprising a copyright protection function by using an electronic book preparation/reading application (9), and uploads this book file to the electronic publication service site (4) by using this application (9). The electronic publication service site registers and stores the uploaded book file so that the book file can be immediately sold to a client.

Abstract: A torque sensor comprising a magnetic amorphous film whose magnetostrictive characteristics vary with the amount of torque applied thereto and coils for detecting magnetostrictive variation disposed opposite the magnetic member. The torque sensor is constituted as an independent unit separate from the shaft whose torque is to be measured. The independent unit comprises a tubular or a shaft member having the magnetic amorphous film attached thereto and a housing with the coils at its inner wall. The housing covers the tubular or shaft member and is rotatable about the same axis as the member. The tubular member is easily mounted on the shaft through spline fittings in one embodiment and the short shaft member of the other embodiment is easily mounted between the two shaft ends via spline fittings and flange couplings.

Abstract: A valve operation control system for an internal combustion engine having an engine valve supported in an engine body for opening and closing. A phase control means is interposed between a crankshaft and the valve operating cam shaft to control the rotating phase of the crankshaft relative to the valve operating cam shaft. A valve drive means is interposed between the valve operating cam and the engine valve to transmit the valve opening force by the valve operating cam to the engine valve. The valve drive means includes a resilient valve opening means for generating resilient force in the valve opening direction and a holding means for holding the engine valve in a closed position while springs accumulate the valve opening force. The holding means is selectively operable to switch between a valve holding state and a valve releasing state to control the valve opening timing of the engine valve in response to operating conditions of said engine.

Abstract: A valve operation control system in an internal combustion engine, comprising an engine valve openably and closably supported on an engine body, a valve spring for biasing the engine valve in a valve closing direction, and valve driving means interposed between a valve-operating cam and the engine valve to transmit a force in the valve-opening direction provided by the valve-operating cam to the engine valve. The valve driving means includes a valve-opening resilient member for exhibiting a repulsive force in a direction to open the engine valve, and closed-position retaining means is interposed between the engine valve and the valve operating cam for retaining the engine valve at its closed position, with a valve-opening force provided by the valve-operating cam being accumulated by the valve-opening resilient member.

Abstract: A torque sensor comprising a magnetic member whose magnetostrictive characteristics vary with the amount of torque applied thereto and coils for detecting magnetostrictive variation disposed opposite the magnetic member, and a method of manufacturing the same. The torque sensor is constituted as an independent unit separate from the shaft whose torque is to be measured. The independent unit consists of a cylindrical member having the magnetic member attached thereto and an enclosure member which is provided with the coils and is mounted so as to cover the cylindrical member and be rotatable about the same axis as the cylindrical member.

Abstract: A torque sensor comprising a magnetic amorphous film whose magnetostrictive characteristics vary with the amount of torque applied thereto and coils for detecting magnetostrictive variation disposed opposite the magnetic member. The torque sensor is constituted as an independent unit separate from the shaft whose torque is to be measured. The independent unit comprises a tubular or a shaft member having the magnetic amorphous film attached thereto and a housing with the coils at its inner wall. The housing covers the tubular or shaft member and is rotatable about the same axis as the member. The tubular member is easily mounted on the shaft through spline fittings in one embodiment and the short shaft member via spline fittings and flange couplings.

Abstract: A valve operating device for an internal combustion engine that includes a valve piston having one end facing into a damper chamber and the other end operatively coupled to an intake or exhaust valve which is spring-biased in a closing direction. A cam piston has one end operatively coupled to a cam drivable by a crankshaft and the other end disposed in a working oil chamber. A restriction mechanism uniformly restricts oil flow during final valve closing operation of the intake or exhaust valve until the valve is fully closed. The working oil chamber and damper chamber are held in communication with each other through the restriction mechanism. A bypass passage interconnects the damper chamber and the working oil chamber in bypassing relation to the restriction mechanism. A variable restriction mechanism is provided in the bypass passage capable of varying the area for oil flow according to valve closing characteristics required by the viscosity of working oil and operating conditions of the engine.