Abstract: The microorganism culture system includes: flat carriers to which microorganisms are to be attached; a culture solution supply unit that supplies a culture solution to the carriers from above the carriers; and an effluent tank that stores a culture solution containing the microorganisms flowing out of the carriers. The plurality of carriers are arranged so that surfaces of the carriers are directly opposed to each other or obliquely face each other at an angle. Light irradiation units are installed between the carriers and in at least a part of an outside of the carriers in a horizontal direction and an outside thereof in a vertical direction when viewed in an arrangement direction of the carriers.

Abstract: In an antenna unit including a dome-shaped top cover, an antenna module disposed in the top cover and adapted to receive radio waves, a bracket covering an under surface of the top cover, and a gasket disposed between the top cover and the bracket to thereby ensure hermeticity in the top cover, the bracket includes a bottom portion pressure welding the gasket between the bottom portion and the top cover to make inside of the top cover an enclosed space, and a mounting portion integrated to the bottom portion to enable the antenna unit to mount in a narrow-mounting-space cabinet.

Abstract: A tubular flow reactor which comprises a plurality of inflow channels for introducing at least two kinds of fluids to cause a reaction; a reaction tube having an internal space for merging the fluids and causing the merged fluids to flow through to cause a reaction; an outflow channel for discharging the reaction product from the reaction tube; and a rod-shaped ultrasonic emitter placed at the flow-merging portion of the internal space of the reaction tube; wherein the inflow channels and the outflow channel are connected to the reaction tube such that their respective internal spaces communicate with the internal space of the reaction tube; and an ultrasonic wave can be emitted from the rod-shaped ultrasonic emitter to the fluid passing through the reaction tube.

Abstract: An antenna apparatus includes: a circuit board that has a main surface and a rear surface opposite to each other; an antenna element that is formed of a metal plate and is arranged at a predetermined distance from the main surface of the circuit board; a plurality of legs that extend from the antenna element toward the circuit board; a ground conductor that is formed on the main surface or the rear surface of the circuit board; a feeding pin that supplies power from the circuit board to the antenna element; and a plurality of comb-shaped capacitor patterns that are formed on one of or both the main surface and the rear surface of the circuit board and are electrically connected between the plurality of legs and the ground conductor.

Abstract: In an antenna unit including a dome-shaped top cover, an antenna module disposed in the top cover and adapted to receive radio waves, a bracket covering an under surface of the top cover, and a gasket disposed between the top cover and the bracket to thereby ensure hermeticity in the top cover, the bracket includes a bottom portion pressure welding the gasket between the bottom portion and the top cover to make inside of the top cover an enclosed space, and a mounting portion integrated to the bottom portion to enable the antenna unit to mount in a narrow-mounting-space cabinet.

Abstract: A GPS receiving antenna device that can suitably be provided on the exterior of a vehicle is provided with low cost. An antenna case includes a top cover and a bottom plate joined with each other. The top cover stores an antenna module that receives a signal and a packing member provided at the joining part between the top cover and the bottom plate to keep the antenna case tightly sealed. The top cover and the bottom plate are provided with engagement parts and claw parts, respectively, and the top cover and the bottom plate are joined with each other as the packing member is pressed.

Abstract: An antenna apparatus includes: a circuit board that has a main surface and a rear surface opposite to each other; an antenna element that is formed of a metal plate and is arranged at a predetermined distance from the main surface of the circuit board; a plurality of legs that extend from the antenna element toward the circuit board; a ground conductor that is formed on the main surface or the rear surface of the circuit board; a feeding pin that supplies power from the circuit board to the antenna element; and a plurality of comb-shaped capacitor patterns that are formed on one of or both the main surface and the rear surface of the circuit board and are electrically connected between the plurality of legs and the ground conductor.

Abstract: An antenna unit according to the present invention comprises an antenna case composed of a top cover and a bottom plate that are joined together. An antenna module is disposed in the top cover. A packing member is disposed at a joining portion between the top cover and the bottom plate to thereby ensure sealing of the antenna module. The packing member has a plurality of anti-slip projecting portions, while the bottom plate has a plurality of through holes receiving the plurality of projecting portions so as to pass therethrough. A diameter of the through hole is made greater than that of the projecting portion to thereby provide a clearance between the through hole and the projecting portion.

Abstract: Mounted on a back surface (21b) of a circuit board (21), a shield cover (24) has a substantially rectangular ceiling portion (241) with four corners which are chamfered, four side wall portions (242-245), and four corner portions (457). The shield cover (24) is mounted on the back surface (21b) of the circuit board by soldering at the four corner portions (247). There is no gap between the four side wall portions (242-245) and the four corner portions (247). The shield cover (24) is formed by bending working of a metal plate (40) and has extension portions (248) at both ends of the four corner portions (247) so as to interpose with the side wall portions (242-245).

Abstract: An antenna device that can surely prevent water from coming into the part where the transmission table is introduced and allows the number of parts to be reduced so that the cost can be reduced. The antenna device includes an antenna module that receives radio waves transmitted from a satellite, a cover member having a sufficient internal space to store the antenna module and its bottom opened, and a bottom plate to close the open bottom of the cover member. The transmission cable is connected to the antenna module. The transmission cable is inserted from the hole provided at the cover member and sealed by a seal material including silicon resin in the hole. The bottom plate is made of a metal plate and a magnet plate and the magnet plate has projections to position the magnet. After the bottom plate is attached, a composite resin material is filled and the cover member has its bottom side sealed.

Abstract: Mounted on a back surface (21b) of a circuit board (21), a shield cover (24) has a substantially rectangular ceiling portion (241) with four corners which are chamfered, four side wall portions (242-245), and four corner portions (457). The shield cover (24) is mounted on the back surface (21b) of the circuit board by soldering at the four corner portions (247). There is no gap between the four side wall portions (242-245) and the four corner portions (247). The shield cover (24) is formed by bending working of a metal plate (40) and has extension portions (248) at both ends of the four corner portions (247) so as to interpose with the side wall portions (242-245).

Abstract: An antenna device that can suitably be provided on the exterior of a vehicle is provided with low cost. An antenna case includes a top cover and a bottom plate joined with each other. The top cover stores an antenna module that receives a signal and a packing member provided at the joining part between the top cover and the bottom plate to keep the antenna case tightly sealed. The antenna case has a notch positioned at the joining part through which a signal line is externally extended, and the packing member integrally forms a base part that covers the entire surface of the antenna module and a gasket part that covers the outer periphery of the signal line connected to the antenna module in the position of the notch.

Abstract: A GPS receiving antenna device that can suitably be provided on the exterior of a vehicle is provided with low cost. An antenna case includes a top cover and a bottom plate joined with each other. The top cover stores an antenna module that receives a signal and a packing member provided at the joining part between the top cover and the bottom plate to keep the antenna case tightly sealed. The top cover and the bottom plate are provided with engagement parts and claw parts, respectively, and the top cover and the bottom plate are joined with each other as the packing member is pressed.

Abstract: An antenna unit according to the present invention comprises an antenna case composed of a top cover and a bottom plate that are joined together. An antenna module is disposed in the top cover. A packing member is disposed at a joining portion between the top cover and the bottom plate to thereby ensure sealing of the antenna module. The packing member has a plurality of anti-slip projecting portions, while the bottom plate has a plurality of through holes receiving the plurality of projecting portions so as to pass therethrough. A diameter of the through hole is made greater than that of the projecting portion to thereby provide a clearance between the through hole and the projecting portion.

Abstract: A GPS receiving antenna device that can suitably be provided on the exterior of a vehicle is provided with low cost. An antenna case includes a top cover and a bottom plate joined with each other. The top cover stores an antenna module that receives a signal and a packing member provided at the joining part between the top cover and the bottom plate to keep the antenna case tightly sealed. The top cover and the bottom plate are provided with engagement parts and claw parts, respectively, and the top cover and the bottom plate are joined with each other as the packing member is pressed.

Abstract: A GPS receiving antenna device that can suitably be provided on the exterior of a vehicle is provided with low cost. An antenna case includes a top cover and a bottom plate joined with each other. The top cover stores an antenna module that receives a signal and a packing member provided at the joining part between the top cover and the bottom plate to keep the antenna case tightly sealed. The top cover and the bottom plate are provided with engagement parts and claw parts, respectively, and the top cover and the bottom plate are joined with each other as the packing member is pressed.

Abstract: An antenna device that can suitably be provided on the exterior of a vehicle is provided with low cost. An antenna case includes a top cover and a bottom plate joined with each other. The top cover stores an antenna module that receives a signal and a packing member provided at the joining part between the top cover and the bottom plate to keep the antenna case tightly sealed. The antenna case has a notch positioned at the joining part through which a signal line is externally extended, and the packing member integrally forms a base part that covers the entire surface of the antenna module and a gasket part that covers the outer periphery of the signal line connected to the antenna module in the position of the notch.

Abstract: An antenna device that can surely prevent water from coming into the part where the transmission table is introduced and allows the number of parts to be reduced so that the cost can be reduced. The antenna device includes an antenna module that receives radio waves transmitted from a satellite, a cover member having a sufficient internal space to store the antenna module and its bottom opened, and a bottom plate to close the open bottom of the cover member. The transmission cable is connected to the antenna module. The transmission cable is inserted from the hole provided at the cover member and sealed by a seal material including silicon resin in the hole. The bottom plate is made or a metal plate and a magnet plate and the magnet plate has projections to position the magnet. After the bottom plate is attached, a composite resin material is filled and the cover member has its bottom side sealed.

Abstract: An etching method and an etching apparatus for applying an etchant containing nitric acid and hydrofluoric acid to silicon to etch the silicon. The etchant used in etching is recovered, and brought into contact with a gas inert to the etchant, whereby the etchant is regenerated. At least a part of the regenerated etchant is reused in etching.

Abstract: A method for purifying an etching solution consisting of an aqueous phosphoric acid solution which has been used in etching of a silicon nitride film. In the process, hydrogen fluoride is added to an etching solution consisting of an aqueous phosphoric acid solution which has been used for etching of a silicon nitride film, and the resulting solution is heated to remove fluorides of silicon as reaction products of hydrogen fluoride with silicon compounds which have been contained in the etching solution together with vaporized water.