Abstract: A vegetable freshness sensor production method and a freshness keeping device using the sensor are disclosed. The sensor senses gases generated by vegetables, thus to not only sense freshness of the vegetables but also sense decayed state of the vegetables. The vegetable freshness keeping device appropriately controls temperature, pressure, humidity, O.sub.2 /CO.sub.2 and quantity of anion in the vegetable store room in accordance with sensing result of the sensor, thus to keep freshness of the vegetables for a long time. In order to produce the gas sensor, a mixture of a metal catalyst and a sensing material is calcinated and mixed with an organic vehicle, thus to form a paste. The paste is coated on an electrode surface of an alumina substrate, thus to form a sensing layer on the substrate. The substrate, after being sintered, is subjected to a wire bonding and to a packaging, thus to form the gas sensor.

Abstract: A thin-film gas sensor and manufacturing method of the same is disclosed which includes a silicon substrate; an insulating layer formed on the surface of the silicon substrate; a heater formed in zigzag on the surface of said insulating layer; a temperature sensor formed in zigzag on the surface of the insulating layer in parallel with the heater; an interlayer insulating layer for electrically insulating the heater and temperature sensor formed on the insulating layer; a plurality of electrodes formed on the interlayer insulating layer placed between the heater and temperature sensor; a plurality of pairs of gas sensing layers disposed in an array on the electrodes and for reacting on detected gas; and a plurality of gas shielding layers formed on one gas sensing layer out of the pair of gas sensing layers and for shielding the detected gas so that the gas sensing layers do not react on the detected gas.

Abstract: This invention relates to a low power consumption type thin film gas sensor and method for fabricating the same. The gas sensor includes a silicon substrate having a window in the central part of one side thereof, masking material formed on the one side thereof except the window, a supporting film formed of an etch stop layer and a glass film on the other side of the substrate, heaters and temperature sensors arranged in parallel on the supporting film facing the window, an interlayer insulation film formed on the supporting film to cover the heaters and the temperature sensors, sensing film electrodes formed on the interlayer insulation film, and a sensing film formed on the interlayer insulation film so as to cover the sensing film electrodes for sensing a particular gas.

Abstract: A tub cover which is mounted on an upper opening of a tub of a washing machine, includes a case shoulder and an inner cover having a condenser with the inner cover hinged with the case shoulder. The condenser comprises a steam inflow opening for enabling the upward passing steam from the tub, a water container member having a plurality of heat-exchanger plates, for heat-exchanging with steam entering therein, and a steam outflow opening for passing outward steam heat-exchanged in the container water member. The heat-exchanger plate comprises a plurality of orifices provided in a plurality of convex portions, and a water container formed between the convex portions.

Abstract: A fully automatic clothes washing machine having thermal and sound insulating components mounted on the outer wall of a water container, in which the insulating wall portion includes a plurality of rib members spaced at predetermined intervals from one another, with the rib members arranged in the form of a lattice-work that forms recesses in which the insulating components are mounted.