Abstract: A method for producing a group III nitride semiconductor includes a loading step (S1), a decompression step (S2), a heating step (S3), an excitation gas supply step (S5), and an organometallic gas supply step (S6). In the loading step (Si), a substrate is loaded into a chamber. In the decompression step (S2), a suction part reduces a pressure inside the chamber. In the heating step (S3), a heater provided inside the chamber heats the substrate. In the excitation gas supply step (S5), a first gas that contains nitrogen without containing hydrogen is supplied to a plasma generator, and an excitation gas obtained by turning the first gas into plasma by the plasma generator is supplied to the substrate inside the chamber. In the organometallic gas supply step (S6), a second gas that is an organometallic gas that contains a group III element is supplied to the substrate inside the chamber.

Abstract: Provided is a vacuum pump in which the flexing of a rotating cylinder made of a fiber-reinforced resin can be reduced as much as possible to sufficiently reduce the gap between the rotating cylinder and a fixed cylinder, and exhaust performance can thereby be improved to great effect. A vacuum pump comprising a thread groove pump portion equipped with a fixed cylinder portion (2) having a spiraling thread groove portion (1) provided in an internal peripheral surface, and a rotating cylinder portion (3) placed inside the fixed cylinder portion (2), the thread groove pump portion exhausting through a spiraling exhaust flow channel due to the rotating cylinder portion (3) being caused to rotate, and the exhaust flow channel being formed from the thread groove portion (1) and an external peripheral surface of the rotating cylinder portion (3).

Abstract: In a visible light communication system including a transmission device and a receiving device arranged separately in a vertical direction and provided so as to relatively move in a horizontal direction, which transmits data from the transmission device to the receiving device by optical space transmission using visible light, the transmission device includes a first light emitting part outputting visible light, and the first light emitting part has a light source emitting visible light and a correction part correcting the light radiated from the light source so as to uniform a light intensity distribution on a horizontal plane. Even when the transmission device and the receiving device arranged separately in the vertical direction relatively move in a horizontal direction, data can be stably transmitted and received by the optical space transmission using visible light.

Abstract: In a visible light communication system including a transmission device and a receiving device arranged separately in a vertical direction and provided so as to relatively move in a horizontal direction, which transmits data from the transmission device to the receiving device by optical space transmission using visible light, the transmission device includes a first light emitting part outputting visible light, and the first light emitting part has a light source emitting visible light and a correction part correcting the light radiated from the light source so as to uniform a light intensity distribution on a horizontal plane. Even when the transmission device and the receiving device arranged separately in the vertical direction relatively move in a horizontal direction, data can be stably transmitted and received by the optical space transmission using visible light.

Abstract: Provided is a vacuum pump in which the flexing of a rotating cylinder made of a fiber-reinforced resin can be reduced as much as possible to sufficiently reduce the gap between the rotating cylinder and a fixed cylinder, and exhaust performance can thereby be improved to great effect. A vacuum pump comprising a thread groove pump portion equipped with a fixed cylinder portion (2) having a spiraling thread groove portion (1) provided in an internal peripheral surface, and a rotating cylinder portion (3) placed inside the fixed cylinder portion (2), the thread groove pump portion exhausting through a spiraling exhaust flow channel due to the rotating cylinder portion (3) being caused to rotate, and the exhaust flow channel being formed from the thread groove portion (1) and an external peripheral surface of the rotating cylinder portion (3).

Abstract: The present invention relates to a technique for moving a mobile component such as a sample and a reagent, in an analyzing article. A method of analyzing a sample according to the present invention includes a first movement step of moving a mobile component from a fluid entrance port (61) to a first goal (511) in a passage (51), and a second movement step of moving the mobile component from the first goal (511) to a second goal (512) in the passage (51), in an analyzing article (Y1). The analyzing article (Y1) further includes a branch passage which branches from the first goal (511), and a first opening for releasing gas from within the branch passage. The first movement step is carried out by establishing communication between inside and outside of the branch passage via the first opening.

Abstract: Laser light generated from laser light generating means (10) is fed through laser light transfer means (11) including a demagnification optical system (23) so as to be condensed in a part Ex where an object gas of analysis exists. The laser light is imparted with energy for causing a multiple photon excitation phenomenon or a multiple photon ionization phenomenon of gas in the condensed part Ex. The energy of the laser light is large enough for 17 eV or higher energy to be injected into a hydrogen molecule when the object gas of analysis is hydrogen and for 23 eV or higher energy to be injected into a helium atom when the object gas of analysis is helium. For example, the intensity of the laser light in the condensed part Ex is 1014 W/cm2 or higher. This provides a laser analytical instrument capable of observing various types of gas through an inexpensive and simple arrangement.

Abstract: Laser light generated from laser light generating means (10) is fed through laser light transfer means (11) including a demagnification optical system (23) so as to be condensed in a part Ex where an object gas of analysis exists. The laser light is imparted with energy for causing a multiple photon excitation phenomenon or a multiple photon ionization phenomenon of gas in the condensed part Ex. The energy of the laser light is large enough for 17 eV or higher energy to be injected into a hydrogen molecule when the object gas of analysis is hydrogen and for 23 eV or higher energy to be injected into a helium atom when the object gas of analysis is helium. For example, the intensity of the laser light in the condensed part Ex is 1014 W/cm2 or higher. This provides a laser analytical instrument capable of observing various types of gas through an inexpensive and simple arrangement.

Abstract: A wing door opening/closing apparatus including a link mechanism and a spring for swinging up a wing door 1. This wing door opening/closing apparatus is made up by plural wing door opening/closing devices A and B. The disparity of the moments generated by one wing door opening/closing device A in the plural wing door opening/closing devices A and B is compensated by a moment generated by the other wing door opening/closing device B.

Abstract: The present invention relates to a technique for determining the position of each of reaction vessels (56) for retaining reaction liquid of a sample and a reagent in analytical instrument (Y) provided with a plurality of reaction vessels (56). The analytical instrument (Y) includes a reference portion (66) for enabling the determination of the position of a particular portion of the analytical instrument (Y). The reference portion (66) is optically detected and utilized as the basis for determining the position of each reaction vessel (56).

Abstract: An aid device is provided to an inspection device for judging whether a target object of inspection is normal or not normal based on results obtained by calculating a characteristic quantity of waveform data obtained from the target object of inspection. The aid device provides data for determining an effective characteristic quantity and effective parameters for calculating the effective characteristic quantity for the judging. Given waveform data are divided into frames and a frame profile with a matrix-form data structure is obtained for each frame. A plurality of such frame profiles for same waveform data are obtained, and a profile describing characteristic quantities related to these waveform data is obtained from them. A plurality of such profiles are stored in a memory for different waveform data. A histogram of values at specified common position in the memory is calculated and displayed.

Abstract: An aid device is set to an inspection system for obtaining waveform data from an inspection object, calculating a value of a characteristic quantity that characterizes the inspection object and making a judgment whether the inspection object is normal or abnormal. The aid device selects one or more characteristic quantities and one or more parameters, calculates a value by using specified combinations of the selected characteristic quantities and parameters to obtain calculation results, and displays a graph based on each of the calculation results for the specified combinations. The graph has at least two axes, each representing a characteristic quantity set or a parameter set and makes a display by varying density, color, height or size corresponding to the results of the calculation.

Abstract: The invention is directed to a system that can easily generate determination conditions and determine a plurality of similar junk electronic mail pieces based on one determination condition.

Abstract: A springing up apparatus for the door (especially the rear door of a cargo box) of a van-type truck is constructed by pivotally attaching the second end of an arm A having a first end pivotally attached to a cargo box body and a second end of an arm B having a first end pivotally attached to the door of the cargo box, and loading a tension spring between a prescribed point on the arm B and a prescribed point on the cargo box body or on the door of the cargo box. This makes it easy to open and close the door of the cargo box by human power. Further, use is made of a compression spring, which is provided on the roof of the cargo box, and there are additionally provided a spring cover mounting structure, which is capable of rotating about a horizontal shaft fixed to the roof, as well as a door-opening adjustment mechanism, which comprises a bracket and an adjustment disk, for adjusting initial amount of compression of the compression spring. This makes it easy to bring the door to rest at a desired position.

Abstract: A vibration damper for a vibrational mechanical body, such as a chain saw or motorcycle, which is a source of vibration, comprises a support, such as an arm of the vibrational body for manipulation, a cylindrical grip mounted on the support, and a vibration-damping means consisting of a pair of coiled springs having a row of small and large coiled portions and disposed between the support and the rigid grip, with each of the small coiled portions being engaged with and supported by the support and each large coiled portion by the inner surface of the grip, whereby the vibration transmitted from the vibrational body to the support is absorbed by the vibration-damping coiled spring to control or lessen the vibration transmission to the grip.

Abstract: A vibration-damped power transmission device adapted to transmit power from a prime mover such as motor, internal combustion engine and the like, which causes a vibratory motion, to a driven body, said power transmission device being supported on a support frame which is to be prevented from vibration, characterized in that at least two vibration dampers are disposed between the housing of said power transmission device and said support frame, said vibration damper comprises a mandrel, a mass member having a cylindrical inner surface enclosing said mandrel, and at least one damping coil spring inserted between said mandrel and said cylindrical inner surface, each of said springs consisting of at least one small coiled portion engaged with or fixed to said mandrel, at least one large coiled portion engaged with or fixed to said cylindrical inner surface and at least one conically and spirally coiled portions integrally connecting said small coiled portion and said large coiled portion.

Abstract: In a device for opening and closing a side plate of a loading box on a motor truck under no-load condition wherein the side plate is outwardly openably hinged at its bottom edge to the outer side edge of the floor plate of the loading box, an actuating or interlocking mechanism is provided which comprises an upper actuating connecting rod and a lower actuating connecting rod. The upper actuating connecting rod has the upper end thereof articulated to the outer surface of the side plate and the lower end thereof articulated to the upper end of the lower actuating connecting rod, the lower end of which is articulated to a lower portion of a support member downwardly projected from the underside of the floor plate. Thus, the mechanism is twice-foldable. The actuating or interlocking mechanism may be resiliently pulled by a spring having the base thereof connected to the underside of the floor plate.

Abstract: In a device for opening and closing a side plate of a loading box on a motor truck under no-load condition wherein the side plate is outwardly openably hinged at its bottom edge to the outer side edge of the floor plate of the loading box, an actuating or interlocking mechanism is provided which comprises an upper actuating connecting rod and a lower actuating connecting rod. The upper actuating connecting rod has the upper end thereof articulated to the outer surface of the side plate and the lower end thereof articulated to the upper end of the lower actuating connecting rod, the lower end of which is articulated to a lower portion of a support member downwardly projected from the underside of the floor plate. Thus, the mechanism is twice-foldable. The actuating or interlocking mechanism may be resiliently pulled by a spring having the base thereof connected to the underside of the floor plate.