Abstract: A device and a system for humor component detection are capable of continuously carrying out measurement with accuracy for a long time and are excellent from the aspect of good hygiene. The humor component detection system comprises the humor component detection device and an extra-corporeal sensing device. The humor component detection device comprises a biosensor, a microbe containing portion, and an outer shell. Here, the biosensor comprises a sensing element and an electronic device. The microbe containing portion includes a pouched microtube blanketing film into which the electrodes of the sensing element are inserted, a plurality of acinous polymer-filmed porous microcapsules contained inside the film, and GOD genetically-modified bacteria contained in the microcapsules.

Abstract: An enzyme activity measuring apparatus comprises a reagent/sample disposing unit 5 which disposed a sample and a reagent containing member 13 including an enzyme activity measuring reagent at a distance from each other, a sample transcription unit 7 which brings the disposed reagent containing member 13 and the sample into contact with each other to transcribe a predetermined volume of sample to the reagent containing member 13, a color depth measuring unit 9 configured to measure color depth of a reagent included in the reagent containing member 13 when predetermined time is elapsed after the sample is transcribed, and CPU 101 configured to detect an activity of enzyme included in the sample based on the measured color depth.

Abstract: An organic electrolytic cell having a positive electrode, a negative electrode, and an electrolyte comprising a solution of a lithium salt in an aprotic organic solvent, wherein a positive electrode collector and a negative electrode collector have pores that penetrate from the front surface to the back surface, a positive electrode active material and a negative electrode active material can reversibly carry lithium, and, when the lithium derived from the negative electrode or the positive electrode is in electrochemical contact with the lithium disposed opposite the negative electrode or the positive electrode, the whole or part of the lithium passes through at least one layer of the positive electrode or the negative electrode and is carried. The opposing area of the lithium is not larger than 40 % of the area of the negative electrode and the porosity of each current collector is not less than 1 % and not more than 30 %.

Abstract: An object of the present invention is to provide a means for measuring amylase activity existing in biological samples such as saliva in a more convenient manner and is particularly to provide a means (reagent for measurement, method for measurement and apparatus) by which a sample containing high concentrations of amylase is measured. There has been found a means (reagent for measurement, method for measurement and apparatus), whereby amylase activity in an amylase sample having a high activity value can be quite conveniently measured by making an oligosaccharide substrate carry on a support in an enzymatic method for measuring amylase activity using a modified oligosacharide substrate, whereupon the present invention has been achieved.

Abstract: An object of the present invention is to provide a means for the measurement of amylase activity that exists in a biological sample such as saliva in a more convenient manner and particularly to provide a means (method and reagent) where a sample containing amylase in high concentration is directly measured without dilution. In the present invention, there has been found a method, which is an enzymatic method using a modified oligosaccharide substrate, comprising adding saccharide such as oligosaccharide that is competitive to the oligosaccharide substrate whereupon amylase activity in an amylase sample having a high activity value can be directly measured without dilution, and a result, the present invention has been achieved.

Abstract: Disclosed is an organic electrolytic cell comprising a positive electrode, a negative electrode and a solution of lithium salt in an aprotic organic solvent as an electrolytic solution. A current collector of positive electrode and a current collector of negative are respectively provided with pores piercing from the front surface to the back surface, an active material of negative electrode is capable of reversibly carrying lithium, and lithium originating in the negative electrode is carried by electrochemical contact with lithium arranged to face the negative or positive electrode. An opposed area of said lithium is not more than 40% of an area of the negative electrode.

Abstract: A vibrator comprising an elastic member and two exciting members such as piezoelectric members, and an ultrasonic linear or rotary motor having the vibrator. One exciting member excites a longitudinal vibration in the elastic member in the length direction thereof and the other exciting member excites a flexural vibration in the elastic member in the thickness thereof, thereby providing substantially elliptical motion to the elastic member.

Abstract: An ultrasonic wave motor includes an elastic member, a movable member, a first electrical/mechanical energy converting member for applying to the elastic member a vibration in a moving direction of the movable member, a second electrical/mechanical energy converting member interposed between the elastic member and the movable member for applying to the movable member a vibration in a floating direction of the movable member, and a driving source for applying a rectangular wave excitation signal to the second electrical/mechanical energy converting member. With this construction, slippage between the movable member and the second electrical/mechanical energy converting member can be eliminated to thereby achieve efficient transmission of energy.

Abstract: This is an ultrasonic motor having a drive unit of low elastic modulus disposed between an ultrasonic vibrator and a mover so as to prevent noise or unnecessary vibration originating from friction on a sliding surface. Moreover, providing a drive unit of plastic and of a particular thermal conductivity enables highly efficient and stabilized motion for long hours and stable driving characteristics.

Abstract: A linear ultrasonic motor which presses a rail against an ultrasonic vibrator, which is substantially elliptically vibrating and conducts relative movement, wherein a protrusion or a groove is provided such that the sectional form of the rail is concave, convex, trapezoidal or triangular. Furthermore, the above vibrator is provided with a groove or a protrusion which uniformly abuts the groove or protrusion of the rail. In the linear ultrasonic motor according to the invention, there is no deterioration of responsiveness due to a support mechanism and no unnecessary vibration, so generated noise is small.

Abstract: This invention relates to a piezoelectric transducer comprising an elastic member resonating with substantially the same frequency in a first and a second directions intersecting therewith, a first exciter exciting the vibration of substantially the same frequency in both directions of the elastic member, and a second exciter exciting the vibration of the above frequency in the first direction of the elastic member and exciting the vibration of substantially the same frequency and of the negative phase in the second direction.

Abstract: In the piezoelectric transducer, the elastic member vibrates, being excited by the first electromechanical transducing element. The impedance element on the second electromechanical transducing element is adjusted so that the vibration frequency and the resonance frequency of the elastic member should be almost the same. In the ultrasonic motor using the piezoelectric transducer, the vibration having the same frequency as that of the vibration of the elastic member is applied to the elastic member. This applied vibration has a direction differnt from that of the viration of the elastic member. The applied vibration and the vibration of the elastic member form approximate elliptical vibration, thereby rotating the rotor. The piezoelectric transducer of variable structure can control the resonance frequency in a wide range without electric power.

Abstract: An ultrasonic motor includes an anisotropic layer disposed between an ultrasonic vibrator and a movable member. The anisotropic layer is made of a composite material including plural components. The ratio of the modulus of transverse elasticity of the layer to the modulus of longitudinal elasticity of the layer in the pressing direction of the movable member is smaller than the corresponding ratio of moduli for each of the components.

Abstract: A vibrator for exciting substantially elliptical motion and an ultrasonic motor employing such a vibrator. A vibrator includes a resonant member having a central hole defined therein and a circumferential portion, a first piezoelectric member for exciting circumferential shearing vibration in the resonant member such that the circumferential portion and the hole are positioned at antinodes of the circumferential shearing vibration about the hole, and a second piezoelectric member for exciting vertical vibration or flexural vibration in the resonant member in a direction different from the direction in which the circumferential shearing vibration is excited by the first piezoelectric member. An ultrasonic vibrator has a moving element held against the resonant member in the vibrator.