Abstract: A medical device includes an extracorporeal unit including a power transmitting unit that transmits electric power from outside of a living body into the living body in a non-contact manner, and a medical instrument embedded in the living body. The medical instrument includes a power receiving unit that receives the electric power transmitted from the power transmitting unit, a soft portion through which an injection needle is inserted, and a plurality of light emitting units that are provided along an outer edge of the soft portion and are each configured to emit light using the electric power received by the power receiving unit. A light amount adjusting unit that adjusts a light amount of a light-irradiated region including one or more light-irradiated portions to be projected on a body surface from the plurality of light emitting units.

Abstract: Provided is a uni-axial multi-stage radial gas expander which has a high degree of reliability and which can sufficiently cope with the conditions of a high pressure and a high pressure ratio. Two or more radial gas expander sections (11A, 11B) formed of two-or-more-stage impeller vanes (14a to 14h) arranged between bearings (21a, 21b) on a rotor shaft (13) consisting of a single shaft are housed in a signal casing (10).

Abstract: An object of the present invention is to provide a reforming apparatus and the like capable of uniformly mixing water (steam) and a raw material together, of preventing the precipitation of carbon without using a temperature controller, and of efficiently heating the water and the mixture by heating gas. Accordingly, the reforming apparatus has the following configuration. The reforming apparatus includes: a first vaporizer (05) that is cylindrically shaped and includes a first flow passage; a second vaporizer (06) that is cylindrically shaped and includes a second flow passage; a duct (027) that connects an outlet of the first flow passage to an inlet of the second flow passage; a raw-material mixing portion (028) formed at a certain point of the duct. The first vaporizer and the second vaporizer are concentrically disposed. An interstice between the first vaporizer and the second vaporizer serves as a heating-gas flow passage (024).

Abstract: A tapered coupling structure allows a tapered shaft to be coupled to and decoupled from a hub without the use of an 0-ring. The tapered shaft is provided with a taper part on the side that is coupled to the hub, and the hub is provided with a high-rigidity part having a thickness in the radial direction larger than that of other regions and having a high rigidity in the radial direction. An oil groove formed in the outer peripheral surface of the taper part to feed oil to the coupling surfaces of the taper part and the hub is provided in a region corresponding to the high-rigidity part in the axial direction.

Abstract: A multi-stage radial turbine that is capable of reducing the number of bearings and of improving the conversion efficiency is provided.

Abstract: Provided is a uni-axial multi-stage radial gas expander which has a high degree of reliability and which can sufficiently cope with the conditions of a high pressure and a high pressure ratio. Two or more radial gas expander sections (11A, 11B) formed of two-or-more-stage impeller vanes (14a to 14h) arranged between bearings (21a, 21b) on a rotor shaft (13) consisting of a single shaft are housed in a signal casing (10).

Abstract: There is provided a tapered coupling structure in which a tapered shaft can be coupled to and decoupled from a hub without the use of an O-ring. In a tapered coupling structure 10 in which a tapered shaft 20 and a hub 30 are coupled to each other, the tapered shaft 20 is provided with a taper part 21 on the side of being coupled to the hub 30, and the hub 30 is provided with a high-rigidity part 32 having a thickness in the radial direction larger than that of other regions and having a high rigidity in the radial direction. An oil groove 24 formed in the outer peripheral surface of the taper part 21 to feed oil to the coupling surfaces of the taper part 21 and the hub 3 is provided in a region corresponding to the high-rigidity part 32 in the axial direction.

Abstract: An object of the present invention is to provide a reforming apparatus and the like capable of uniformly mixing water (steam) and a raw material together, of preventing the precipitation of carbon without using a temperature controller, and of efficiently heating the water and the mixture by heating gas. Accordingly, the reforming apparatus has the following configuration. The reforming apparatus includes: a first vaporizer (05) that is cylindrically shaped and includes a first flow passage; a second vaporizer (06) that is cylindrically shaped and includes a second flow passage; a duct (027) that connects an outlet of the first flow passage to an inlet of the second flow passage; a raw-material mixing portion (028) formed at a certain point of the duct. The first vaporizer and the second vaporizer are concentrically disposed. An interstice between the first vaporizer and the second vaporizer serves as a heating-gas flow passage (024).

Abstract: An object of the present invention is to provide a two-fluid spray burner in which liquid fuel can be stably supplied without causing large fluctuation in flow rate of supplied liquid fuel even when the flow rate of supplied liquid fuel is low. In a two-fluid spray burner (11) which atomizes liquid fuel (24) with atomizing air and burns the same, the burner includes: a liquid fuel tank (19) including a cylindrical side portion (20) and a bottom portion (21) provided at a lower end of the side portion (20), the liquid fuel tank (19) storing liquid fuel (24) supplied from a liquid fuel supply tube (25) and discharging the stored liquid fuel (24) from a liquid fuel discharge hole (22) opened in the bottom portion (21) below a liquid level (23) of the stored liquid fuel (24). The liquid fuel (24) discharged from the liquid fuel discharge hole (22) of the liquid fuel tank (19) is atomized with atomizing gas (46) and is burned.

Abstract: An object of the present invention is to provide a burner such as a two-fluid spray burner which can produce a large amount of combustion exhaust gas with a simple structure, does not cause unburned gas and accidental fire, and furthermore can provide shortened flame and a uniform distribution of the flow rate of the combustion exhaust gas. Accordingly, the burner includes: a cylindrical combustion air passage (15) formed between a two-fluid sprayer (12) and a burner outer cylinder (48) surrounding a periphery of the two-fluid sprayer; a plate (shield plate) (18) separating the combustion air passage and a combustion space portion (13); and a combustion air passage hole (52) provided in the outer periphery of the plate. Combustion air (50) flowing down the combustion air passage is blocked by the plate and introduced to the outer periphery of the plate to be kept away from the two-fluid spray nozzle (38). The combustion air then flows through the combustion air passage hole into the combustion space portion.

Abstract: A gas supplying system for fuel cell includes a reformer generating a reformed gas by reforming a mixed raw material including a fuel and a first water, a piping network distributing the reformed gas to fuel cell systems each of which is installed in different rooms or buildings, a drain recovery unit recovering a water condensed from the reformed gas in the piping network. The piping network has a circulating route. By the circulation route, the reformed gas does not stay in the piping network so that the water condensation in the piping is suppressed. The water in the piping is removed by the drain recovery unit. According to this configuration, the clogging and corrosion of the piping caused by the condensed water is avoided.

Abstract: A gas supplying system for fuel cell includes a reformer generating a reformed gas by reforming a mixed raw material including a fuel and a first water, a piping network distributing the reformed gas to fuel cell systems each of which is installed in different rooms or buildings, a drain recovery unit recovering a water condensed from the reformed gas in the piping network. The piping network has a circulating route. By the circulation route, the reformed gas does not stay in the piping network so that the water condensation in the piping is suppressed. The water in the piping is removed by the drain recovery unit. According to this configuration, the clogging and corrosion of the piping caused by the condensed water is avoided.