Abstract: The present invention relates to a UHF RFID tag, and provides a set of UHF RFID tag comprising a loop-patterned sheet on which a RFID chip is mounted so as to form a closed loop and a dipole-patterned sheet that is separate from the other. According to the present invention, loop-patterned sheets having simple form and small size can be mass-produced in a few simple types. A mounting process for a RFID chip on the loop-patterned sheets which require precise work can be simplified. In addition, a set of RFID tag according to the present invention can be applied in various environments by combining a few types of the loop-patterned sheet and various types of dipole-patterned sheets.

Abstract: The present invention relates to an extension hose for a vacuum cleaner, which includes a female connector mounted at one end thereof and a male connector mounted at other end thereof so that a flexible hose of the vacuum cleaner can be extended, thereby improving a convenience in use.

Abstract: The present invention relates to a vacuum cleaner hose manufactured by continuously spirally winding one row or two rows of band-shaped materials extruded with an electric wire inserted therein. The vacuum cleaner hose is formed by spirally winding and sticking a band-shaped material having protrusions connected to each other in a line. In one embodiment, the vacuum cleaner hose is formed from one row of the band-shaped material 2 having a plurality of the hollow protrusions 4 inserted with the electric wire 5 and at least one hollow protrusion 4a inserted with no electric wire 5 is formed into the hose 1. In another embodiment, the vacuum cleaner hose is formed from two rows of the band-shaped materials 2 in which the protrusions of only one row of the band-shaped materials 2 are inserted with the electric wire 5.

Abstract: Disclosed is a hose (1) for a vacuum cleaner comprising synthetic resin strips (10), each of which comprises a flat portion (11), a reversed U-shaped protrusion (20) formed at an end (11a) of the flat portion (11) and having an electrical conductive wire (40) inserted therein, and a hook-shaped cover (30) integrally formed at the other end (11b) of the flat portion (11) with a predetermined space from the reversed U-shaped protrusion (20) so that the space between the protrusion (20) and the cover (30) allows smooth bending and stretching of the hose (1), wherein two adjoining strips (10, 10′) are helically wound so that the reversed U-shaped protrusion (20) of one strip is overlapped with the hook-shaped cover (30) of the other strip, thereby contacting a side wall (20a) of the reversed U-shaped protrusion (20) of one strip with an inner surface (30a) of the hook-shaped cover (30), and wherein the side wall (20a) of the reversed U-shaped protrusion (20) of one strip and the inner surface (30a) of the h