Abstract: In a humidifier, its humidifier body is formed as follows: A plurality of ribs 3 made of a flexible material are fixedly adhered to the inner surface 1a of a tubular film structure 1 made of a moisture permeable film 2 in such a manner that the ribs are extended in parallel with the longitudinal axis of the tubular film structure, and the tubular film structures 1 and spacer boards 4 adapted to form spaces outside the tubular film structures into which air is supplied, are alternately laid one on another. Whereby, it is provided a humidifier which is excellent in water supply characteristic, high in humidification, and low in air resistance.

Abstract: The invention relates to an improvement of the gas sealing at the periphery of the electrode base and separator which constitute the fuel cell. Provided herein is a method for sealing the gas of a phosphoric acid-type fuel cell which comprises filling the pores in the porous material periphery of the cell constituents with fine particles of at least one of silicon carbide and silicon nitride which have undergone surface oxidation treatment, and causing particles to expand in volume through the reaction of the surface oxide of the particles with hot phosphoric acid that yields phosphate compounds, thereby clogging the pores.

Abstract: A heat exchanger of a construction having a plurality of plates disposed in mutual confrontation at a predetermined spaced interval among them to separate two fluids to be subjected to heat-exchange; a fin disposed in the space interval among the mutually opposed plates to form a plurality of parallel flow paths for controlling flow of the two fluids in the spaced interval, the spaced interval formed by the plates being in a plurality of stacked layers, and the portion where the fin is present and the empty space where no fin is present being so disposed in the plurality of space intervals in layer form that they may be staggered in the direction of stacking the plates; and a control member provided in each of the space intervals in layer form to separate and alternately lead into each space interval the primary fluid and the secondary fluid so as to effect the heat exchanging operation between the primary fluid and the secondary fluid in the course of their passage through the spaced interval in layer, while

Abstract: In addition to the telephone signal input and output terminals, a unit circuit is provided with novel input and output interfaces, and m echo canceller unit circuits are connected to each other in cascade with data buses in order to cancel the echoes of an m-times echo path delay.

Abstract: An electric recording system is a novel recording system using an electric heat recording sheet comprising an electric conductive layer and an electric resistant layer, and heating the electric resistant layer by feeding a signal current to the recording sheet by contacting an electrode needle with the recording sheet and recording symbols or figures on the recording medium (e.g., commercial thermo-sensitive paper) through the electric conductive layer.In the other embodiment of the electric heat recording sheet, an electric resistant layer is formed on one surface of an electric conductive layer and an ink layer is formed on the rear surface of the electric conductive layer whereby heat is transferred from the electric resistant layer to print shape image by printing a part of the ink layer on the recording medium, such as a regular paper.

Abstract: A film or sheet material having antibacterial and antifungal activities is obtained by mixing a thermoplastic resin with 2-(4'-thiazolyl)-benzimidazole and N-(fluorodichloromethylthio)-phthalimide, and shaping the resulting mixture, or, alternatively, by coating a base film or sheet material on one side or both sides with a coating material containing a mixture of 2-(4'-thiazolyl)-benzimidazole and N-(fluorodichloromethylthio)-phthalimide, a mixture of 2-(4'-thiazolyl)-benzimidazole and N-dimethyl-N'-phenyl-N'-(fluorodichloromethylthio)-sulfamide, or a mixture of N-(fluorodichloromethylthio)-phthalimide and N-dimethyl-N'-phenyl-N'-(fluorodichloromethylthio)-sulfamide.