Abstract: Provided are a microbial power generation device, an electrode for the microbial power generation device, preparing methods of the same, an electric power producing method using microbes and a selective culture method of the microbes used for the electric power producing method capable of improving electric power production capacity and of suppressing power generation cost. In a microbial power generation device (1), microbes (reducing microbes) that reduce graphene oxide are enriched among microbes inhabiting wastewater, slurry, activated sludge and the like. Therefore, the graphene oxide is reduced by the reducing microbes, so the graphene is produced. Electrons produced by the microbes can be transmitted to a negative electrode (14) via the produced graphene. As a result, the electric power production capacity can be improved and the power generation can be performed at a low cost.

Abstract: The invention relates to a semiconductive resin composition containing at least two kinds of conductive fillers, wherein the difference in threshold values of percolation between at least two kinds of the conductive fillers is within a range of 10 to 50 mass %. The semiconductive resin composition of the present invention can be used widely in various form of molded products, such as component used for transport in a clean room, spin chuck, IC test socket, various rollers installed in copier, seamless belt, bearing, antistatic fiber, member for electrostatic coating, fuel tube, part around fuel or chemical tube.

Abstract: The invention relates to a heat-resistant sliding resin composition, comprising a vapor carbon fiber having a specific surface area of 10 to 50 m2/g, a mean aspect ratio of 20 to 500 and a mean fiber diameter of 50 to 200 nm and a synthetic resin, wherein a heat deflection temperature under high load (ASTM D648) is 160° C. or higher and a thermal conductivity is 0.8 W/mK or higher. The resin composition has heat resistance, heat-radiation property and sliding property. Particularly, the resin composition, which neither wears away nor abrades a soft metal member which is a counter member under high temperature and heat generative conditions, can be employed for various sliding members such as bearings.

Abstract: The invention relates to a semiconductive resin composition containing at least two kinds of conductive fillers, wherein the difference in threshold values of percolation between at least two kinds of the conductive fillers is within a range of 10 to 50 mass %. The semiconductive resin composition of the present invention can be used widely in various form of molded products, such as component used for transport in a clean room, spin chuck, IC test socket, various rollers installed in copier, seamless belt, bearing, antistatic fiber, member for electrostatic coating, fuel tube, part around fuel or chemical tube.

Abstract: The invention provides a production method of a conductive polymer, comprising a step of blending a polymer in a state of a melt viscosity of 600 Pa·s or less at a shear rate of 100 s?1 with a vapor grown carbon fiber in 1 to 15 mass at a mixing energy of 1,000 mJ/m3 or less, and a conductive polymer obtained thereby. Preferably, a vapor grown carbon fiber used has an outer fiber diameter of 80 to 500 nm, an aspect ratio of 40 to 1,000, a BET specific surface area of 4: to 30 m2/g, a do02 of 0.345 nm or less according to an X-ray diffraction method, and a ratio (Id/Ig) of 0.1 to 2 wherein Id and Ig each represent peak heights of a band ranging from 1,341 to 1,349 cm?1 and a band ranging from 1,570 to 1,578 cm?1 respectively, according to a Raman scattering spectrum. According to the invention, an excellent conductivity can be attained by compounding vapor grown carbon fiber in a smaller amount than in a conventional method.

Abstract: The electroconductive resin composition comprising 1 to 30 mass % of carbon fiber having a hollow structure, an average filament diameter of 50 to 500 nm and an average aspect ratio of 50 to 1000 and 99 to 70 mass % of resin, wherein the volume ratio of carbon fiber agglomerate to one carbon fiber filament constituting the agglomerate in the resin composition (volume of carbon fiber agglomerate/volume of a carbon fiber filament) is 1500 or less according to the invention can be uniformly dispersed in resin without agglomeration and therefore, a good electroconductivity can be achieved by addition of small amount of the composition.

Abstract: Conductive composites with resin, produced by mixing a vapor grown carbon fiber having a fiber diameter of 2 to 500 nm with a matrix resin in a molten state while suppressing breakage of the fiber 20% or less, exhibit conductivity higher than that of a conventional conductive composites with resin through incorporation of vapor grown carbon fiber in an amount equivalent to a conventional amount, or exhibit conductivity equal to or higher than that of a conventional conductive composites with resin through incorporation of vapor grown carbon fiber in an amount smaller than a conventional amount. In the case where the melt-mixing of the fiber with resin is performed using a co-rotating twin-screw extruder, the vapor grown carbon fiber is preferably fed to the extruder by way of side feeding. In the case where the melt-mixing is performed using a pressure kneader, resin is sufficiently melted in the kneader in advance, and vapor grown carbon fiber is fed to the molten resin.

Abstract: The invention relates to a heat-resistant sliding resin composition, comprising a vapor carbon fiber having a specific surface area of 10 to 50 m2/g, a mean aspect ratio of 20 to 500 and a mean fiber diameter of 50 to 200 nm and a synthetic resin, wherein a heat deflection temperature under high load (ASTM D648) is 160° C. or higher and a thermal conductivity is 0.8 W/mK or higher. The resin composition has heat resistance, heat-radiation property and sliding property. Particularly, the resin composition, which neither wears away nor abrades a soft metal member which is a counter member under high temperature and heat generative conditions, can be employed for various sliding members such as bearings.

Abstract: A loop track for racing objects is disposed at the center of a race game device, for example for a simulated horse race. A plurality of racing objects, such as race horses, run on the track. The X- and Y-directional positions of the race horses are detected by a separable position detecting means underlying the track. The separable position detecting means allows for easier maintenance, transport, assembly, and disassembly of the device. Information regarding the positions of the horses is displayed on a game screen. Players can write memos to themselves on individual game screens by pressing a trace over the game information on the game screen. A control unit provides game information corresponding to other races other than a current race, including future races, and players may select information corresponding to future races on the individual game screen.

Abstract: The present invention relates to an electrically conductive resin composition comprising a vapor grown carbon fiber (A1) having an outer fiber diameter of 80 to 500 nm and a resin (B), characterized in that: (1) the vapor grown carbon fiber (A1) has an interlayer spacing (d002) of 0.345 nm or less and an aspect ratio of 40 to 1,000, (2) the ratio by volume of the vapor grown carbon fiber (A1) to the resin (B) (i.e., A1/B) is 0.5/99.5 to 12/88, (3) the electrically conductive resin composition has a volume resistivity value of 105 ?cm or less, and (4) when the resin composition is heated at 80° C. for 30 minutes, the total amount of gases generated therefrom is 5 ppm or less. The present invention also relates to a resin molded product comprising the electrically conductive composition. The electrically conductive resin composition suppresses deposition of a molecular contaminant generated from a resin material onto the surface of a packaged device product.

Abstract: A conductive composition comprising a vapor grown carbon fiber having an aspect ratio of 40 to 1,000, preferably 65 to 1,000, and a specific surface area or fiber diameter of the fiber within a predetermined range, and a preferable peak intensity ratio (I0=I1360/I1580) of 0.1 to 1, wherein I1580 represents a peak height at 1,580 cm?1 and I1360 represents a peak height at 1,360 cm?1 in a Raman scattering spectrum; and a resin composition containing the composition; and a production method thereof.

Abstract: The invention provides a production method of a conductive polymer, comprising a step of blending a polymer in a state of a melt viscosity of 600 Pa·s or less at a shear rate of 100 s?1 with a vapor grown carbon fiber in 1 to 15 mass at a mixing energy of 1,000 mJ/m3 or less, and a conductive polymer obtained thereby. Preferably, a vapor grown carbon fiber used has an outer fiber diameter of 80 to 500 nm, an aspect ratio of 40 to 1,000, a BET specific surface area of 4: to 30 m2/g, a do02 of 0.345 nm or less according to an X-ray diffraction method, and a ratio (Id/Ig) of 0.1 to 2 wherein Id and Ig each represent peak heights of a band ranging from 1,341 to 1,349 cm?1 and a band ranging from 1,570 to 1,578 cm?1 respectively, according to a Raman scattering spectrum. According to the invention, an excellent conductivity can be attained by compounding vapor grown carbon fiber in a smaller amount than in a conventional method.

Abstract: A loop track 12 for race horses is disposed at the center of a horse race game device 10. Twelve race horses 14 run on the track 12. A gate 18 is disposed in a paddock 20 in the track 12. The gate 18 is advanced to a start point of the track 12 from the paddock 20. Twelve satellites 12 are disposed on three sides of the track 12. A large projector 24 for displaying images of developments, ect. of a race is disposed on one of the short sides of the track 12. Speakers 25 for live broadcasting, fanfares, BGM, etc. are disposed on both sides of the large projector. The horse race game device enables a larger number of running objects to be raced at once, whereby race developments are made more amusing.

Abstract: A loop track for race horses is disposed at the center of a horse race game device. Twelve race horses run on the track. A gate is disposed in a paddock in the track. The gate is advanced to a start point of the track from the paddock. Twelve satellites are disposed on three sides of the track. A large projector for displaying images of developments, etc. of a race is disposed on one of the short sides of the track. Speakers for live broadcasting, fanfares, BGM, etc. are disposed on both sides of the large projector. The horse race game device enables a larger number of running objects to be raced at once, whereby race developments are made more amusing.

Abstract: A progressive gaming system pays out a progressively increasing bonus to a player who wins a game with a predetermined winning combination. The progressive gaming system includes a plurality of gaming controllers which detect when a player gets one of a plurality of predetermined winning combinations and pays out a predetermined number of coins or tokens according to the winning combination. Each of the gaming controllers counts coins or tokens bet by the player before the game is started and outputs an indication signal of the amount of the bet coins or tokens.

Abstract: This invention relates a game machine in which a combination of characters stopped along a winning line is judged based on a winning table showing winning combinations of characters to determine the presence of a win and a payment of coins. In this game machine, a substitutable character can be used as another character, and when its substitution makes a combination of characters a winning combination, a payment of coins for the combination is increased or decreased to determine a new payment of coins.

Abstract: The present invention provides a slot machine for determining winning or losing by selecting predetermined symbols from symbol trains arranged on X reels, in accordance with a random number, in which the X reels have symbol trains of different numbers of symbols arranged thereon.

Abstract: This invention relates to a slot machine which comprises random number generating unit and X reels each having a plurality of symbols. All the combinations of the symbols among the reels made when one symbol of each reel is selected are identified by respective numbers, and one random number is generated by the random number generating unit, so that a combination of the symbols bearing an identification number corresponding to the random number is selected.