Abstract:
PURPOSE:To prevent the generation of a crystalline grain boundary at the central section of a beltlike semiconductor thin-film by interposing a thermal radiation preventive layer between the beltlike semiconductor thin-film and a heater along approximately the central section of the strip-like semiconductor thin-film and executing recrystallization. CONSTITUTION:A plurality of beltlike polycrystalline silicon thin-films 5 in 0.5mum thickness and 400-600mum width are formed on a quartz board 4 at intervals of 50mum, and an SiO2 layer 6 in 1-2mum thickness and an Si3N4 layer 7 in 500nm thickness are laminated on the thin-films 5 in succession, thus preparing a substrate 1. Mo thermal radiation preventive layers 8 in 100mum width and 200nm thickness are formed on the surface of the Si3N4 layer at approximately the central sections of the silicon thin-films 5. W, Ta, Pt, Ti, etc. may be used as a material for the thermal radiation preventive layer 8. The width of the thermal radiation preventive layer 8 must be made narrower than that of the thin-film 5.
Abstract:
PROBLEM TO BE SOLVED: To provide a biological signal detection electrode and a biological signal detection apparatus which are suitable for long-term mounting.SOLUTION: The biological signal detection electrode 100 includes a water-containing member and an absorbent sheet 103. The water-containing member is impregnated with conductive fluid and has flexibility. The absorbent sheet covers the water-containing member and the conductive fluid is capable of permeating therethrough. The water-containing member is stored in a container 101 including a conductive electrode terminal on bottom surface thereof. The absorbent sheet covers the container along with the water-containing member comprising a plurality of beads 102.
Abstract:
PROBLEM TO BE SOLVED: To achieve a high current density in a fuel battery while utilizing biological metabolism.SOLUTION: There is provided a fuel battery capable of achieving a higher current density while utilizing biological metabolism. In the fuel battery, fuel is decomposed in a step-by-step manner by a plurality of enzymes and electrons produced by oxidation are transferred to an electrode. In the plurality of enzymes decomposing the fuel, the enzyme activity of the enzyme performing decomposition in a pre-stage is equal to or less than the enzyme activity of an enzyme group performing decomposition in a later stage. In a case where a coenzyme is involved, the enzyme activity of an oxidase that oxidizes the coenzyme is equal to or more than the sum of the enzyme activities of an enzyme group involved in the formation of the reductant of the coenzyme, out of the plurality of enzymes decomposing the fuel in a step-by-step manner.
Abstract:
PROBLEM TO BE SOLVED: To provide a muscle-activity diagnosis apparatus that is capable of efficiently obtaining a change in myoelectric potential without much trouble in daily life, and is capable of identifying activity states of human muscles that are changing every moment.SOLUTION: A signal output from an input-signal processing section 41 is subjected to Hilbert transformation by a Hilbert transformation section 43 after processed by an AD converter 42. An inverse-Fourier-transformation section 44 performs inverse Fourier transformation with respect to the result of the Hilbert transformation, and generates signals having waveforms with their phase shifted by 90°. A phase-diagram generation section 45 generates a phase diagram based on an original signal and the transformed signal, and a phase-velocity calculation section 46 calculates a phase velocity based on the phase diagram. A state detection section 47 identifies facial motion and expression, etc. of the user 20 based on the signal output from the AD converter 42 and that output from the phase-velocity calculation section 46.
Abstract:
PROBLEM TO BE SOLVED: To provide a power source system equipped with a fuel cell as an energy source, not only having large energy density but also having large output density, and capable of corresponding to intense variations of power consumption with a simple means. SOLUTION: In the power source system 10, a fuel cell 1 is connected to an input terminal of a DC/DC converter 2, and a lithium ion secondary battery 3 and a load 4 are connected in parallel with an output terminal. A voltage measuring means 6 for measuring terminal voltage of the secondary battery 3, and a control computer 5 for setting a target output voltage of the converter 2, are provided, and the target output voltage is set slightly higher than the terminal voltage. The fuel cell 1 is operated in a power generation condition with the best fuel conversion efficiency. By doing this, a system made of the fuel cell 1 and the converter 2, functions like a constant voltage/current source outputting the power generated by the fuel cell 1 at a voltage equal with the terminal voltage of the secondary battery 3. Excess and deficiency between the output current and current for driving the load 5, is automatically adjusted by charge and discharge of the secondary battery 3. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a fuel cell capable of drastically raising an output in case enzyme is fixed as catalyst at least at either a cathode or an anode. SOLUTION: The fuel cell is constituted by laminating in turn a spacer 11 of a structure capable of permeating air, a cathode collector 12, a cathode 13, a proton conductor 1, an anode 15, an anode collector 16, a spacer 17 of a structure capable of permeating fuel, an anode collector 18, an anode 19, a proton conductor 20, a cathode 21, a cathode collector 22, and a spacer 23 of a structure capable of permeating air. The anodes 15, 19 have the catalyst fixed. A fuel retainer 28 in bag shape is provided so as to wrap up the anode 15, the anode collector 16, the spacer 17, the anode collector 18, and the anode 19. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an acceleration detecting apparatus capable of improving the detection accuracy. SOLUTION: A weight 3 has a reflecting surface 3a, constituted of a three-dimensional curved surface and is supported at the position of an origin by coil springs 4. A laser device 5 irradiates a light toward the reflecting surface 3a of the weight 3. A two-dimensional optical sensor 6 is arranged at a position, to which light reflected at the reflecting surface 3a of the weight 3 is made incident. The weight 3 is displaced according to the direction and size of acceleration, when acceleration is added. The position of reception of the light irradiated from the laser device 5 by the two-dimensional optical sensor 6 is thereby displaced. A signal processing circuit 9 detects the position of light reception, on the basis of output of the two-dimensional optical sensor 6 and outputs an acceleration detecting signal. A controller 10 computes acceleration from the acceleration detection signal. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To fabricate a fuel cell capable of realizing large current density while utilizing biological metabolism. SOLUTION: The fuel cell 10 is provided in which a pair of electrodes composed of a positive electrode 11 and a negative electrode 12 are opposed via a proton conductor 13, and in which in the negative electrode 12, a fuel decomposing enzyme group, NAD (P) (nicotine amide adenine dinucleotide) and its reductant, NADH dehydrogenase, and an electron mediator are electrostatically immobilized by polyanion and/or polycation. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To achieve a large current density, while making use of biometabolism. SOLUTION: A fuel cell achieves a large current density, while making use of biometabolism. While a fuel is decomposed stepwise by a plurality of enzymes, electrons generated with oxidation are transferred to an electrode. In the plurality of enzymes decomposing the fuel, the enzyme activity of decomposing enzymes in a former step is equal to or below that in a latter step. In the case of coenzyme being involved therein, the enzyme activity of oxidizing enzymes, which oxidize the coenzymes, is equal to or higher than the sum of the enzyme activities of an enzyme group taking part in yielding the reduced forms of the coenzymes among the plurality of enzymes stepwisely decomposing the fuel. COPYRIGHT: (C)2004,JPO