Abstract: A blower apparatus for a vehicle for blowing air into a cabin. The blower apparatus including a case member, various units and airflow passages. The units include an air cleaning unit for cleaning the air, and a component-adding unit for adding air components such as ions to the air. The units have compatible external shapes and sizes for selective installation in almost the same positions in the airflow passages, thereby meeting user needs of changing the function of the blower apparatus simply by arranging the units to the desired positions.

Abstract: A semiconductor device improves the gate withstand voltage of vertical MOSFETs and raises their operation speed. The gate electrode is formed in the trench of the second semiconductor layer. The interlayer dielectric layer has the contact hole that exposes the connection portion of the gate electrode, where the connection portion is located in the trench. The conductive plug is filled in the contact hole of the interlayer dielectric layer in such a way as to contact the connection portion of the gate electrode. The wiring layer is formed on the interlayer dielectric layer in such a way as to contact the plug, resulting in the wiring layer electrically connected to the connection portion by way of the plug. There is no need to form a connection portion for the gate electrode outside of the trench, which means that the gate dielectric does not include a weak or thinner portion where dielectric breakdown is likely to occur.

Abstract: In a semiconductor device, an active region is formed on a semiconductor substrate. An electrode layer is directly formed on the active region and serves as a bonding pad. The electrode layer is mainly formed by an Al alloy layer containing Cu.

Abstract: A warning device for warning change time of a filter for cleaning air includes an indication lamp which indicates a warning of the change time of the filter, and a control unit for controlling operation of the indication lamp. The control unit sets a next timer setting value for the next filter change to a filter-using time until a change of the filter, and operates the indication lamp when the filter-using time passes the next timer setting value after the change of the filter. Thus, the warning of the change time of the filter is performed at a suitable moment reflecting a variation of a clogging degree of the filter. As a result, the warning device accurately performs the warning of the change time of the filer without using a sensor for detecting the clogging degree of the filter.

Abstract: A filter corrugated in wave shape along a first axis has an end filter material piece positioning at an end of the first axis and adjacent filter material piece positioning adjoining to said end filter material piece. The end filter material piece and said adjacent end filter material piece are adhered to each other by an adhesive. In another embodiment, a filter element has a cushion material disposed between the end filter material piece and the adjacent end filter material piece. A filter material has convex and concave crease portions alternately disposed along a first axis thereof and extending along a second axis thereof. The convex and concave crease portions define alternating convex and concave spaces therein. An elastic material fills at least a portion of at least one of said concave and convex spaces.

Abstract: A deodorizing air filter is capable of improving the strength and deodorizing ability while suppressing an increase of ventilation resistance and pressure loss. A filter body has a series of filter pieces which are formed into a zigzagged shape by folding along multiple folds of parallel lines of the filter element. The filter body is made of the deodorizing section and the filtering section formed alternatively, the filtering section of the air serves as a filter and deodorizer for the air, and the deodorizing section serves as a deodorizer for the air. As the deodorizing section does not serve as a filter, it is not necessary to make the pitch of each piece of the filtering section smaller. As a result, it is possible to suppress the increase of ventilation resistance and pressure loss.