Abstract: An antenna device is provided that includes a ground and an element including a first element component part and a second element component part. The first element component part has a first end facing a side of the ground and serving as a connection point, and extends from the first end in a direction, away from the ground. The second element component part is connected to a second end of the first element component part so as to extend substantially parallel to the side of the ground part.

Abstract: A disclosed information providing system includes a communication device; an information providing apparatus; and a mobile terminal device carried by a shopper and configured to communicate by wireless communication with the communication device and to communicate via a network with the information providing apparatus. The information providing apparatus is configured to supply information to the mobile terminal device via the network or via the communication device and the wireless communication.

Abstract: A product management system is disclosed. The product management system comprises a product detection device disposed on a product display rack and configured to detect presence/absence of a product on the product display rack, a wireless communication device disposed on the product display rack and configured to wirelessly transmit information about the presence/absence of the product detected by the product detection device, a relay device to relay communications between the wireless communication device and a network, a product management device to store and display the information transmitted from the wireless communication device via the relay device and the network, and a terminal device capable of wireless communications with the wireless communication device and configured to travel with a shopper.

Abstract: A communication apparatus is provided that includes an apparatus main frame, an antenna, and a connecting element that connects the antenna to the apparatus main frame and positions the antenna away from the apparatus main frame.

Abstract: An entry detecting system includes a terminal device; a point-to-point communication device; an entry detecting device; and a guard device. The point-to-point communication device includes a transmitting-receiving antenna having directivity in a specific direction. The point-to-point communication device communicates by radio with the terminal device via the transmitting-receiving antenna so as to detect a response time from the terminal device and report detected response time to the entry detecting device. The entry detecting device detects a distance from the point-to-point communication device to the terminal device based on the response time reported by the point-to-point communication device, generates entry detecting information based on the detected distance, and transmits the entry detecting information to the point-to-point communication device and the guard device. The point-to-point communication device transmits the received entry detecting information to the terminal device.

Abstract: An antenna apparatus is disclosed. The antenna apparatus includes a dielectric substrate; an antenna element pattern formed on the dielectric substrate; a grounding pattern connected to the element pattern; a feed line formed on the dielectric substrate, and connected to the element pattern; and a filter connected to the feed line.

Abstract: A signal transmission and reception device is disclosed that can be made compact and has wide-band band-pass characteristics. The signal transmission and reception device includes a first filtering unit that is composed of a distributed constant circuit and is capable of eliminating a first frequency component or a second frequency component. The second frequency is higher than the first frequency, and a second filtering unit that attenuates components of frequencies lower than the first frequency or components of frequencies higher than the second frequency.

Abstract: A shopping path tracking system is disclosed that comprises a terminal device, a fixed communication device, and a path management device. The fixed communication device wirelessly communicates with the terminal device, calculates a response time of the terminal device, and reports the calculated response time to the path management device. The path management device detects a position of the terminal device based on the response time reported from the fixed communication device, stores the detected position, and detects a travel path of the terminal device by tracking the stored positions.

Abstract: A disclosed antenna apparatus includes a base made of a dielectric material; an antenna element pattern formed on a surface of the base; a ground pattern formed in a position adjacent to and opposite to the antenna element pattern on the same surface of the base; and a surface-mounted coaxial connector mounted on the ground pattern in a position close to a feeding point of the antenna element pattern.

Abstract: A fuel cell device is disclosed that is capable of being made compact when being transported and in storage. The fuel cell device includes a fuel cell unit including a number of fuel cells arranged sequentially in a case. The case includes a holder frame for holding the fuel cells, a first hemi-case, and a second hemi-case. The width of the case is adjustable in the direction in which the fuel cells are arranged in a line. When the fuel cell device is being transported or in storage, the first hemi-case and the second hemi-case are pushed to approach each other, making the size of the case small. When the fuel cell device is used to generate electrical power, the first hemi-case and the second hemi-case are pulled apart from each other and, accordingly, the fuel cells are separated from each other by a springy plate.

Abstract: A disclosed optical window member includes a transparent synthetic resin plate comprising a surface with a protruding/recessed pattern of a predetermined fineness that causes light diffusion; and an optical thin film formed on the surface of the transparent synthetic resin plate with the protruding/recessed pattern. The optical thin film determines a component of light transmitted through the optical thin film and light reflected from the optical thin film.

Abstract: A disclosed antenna apparatus includes a base made of a dielectric material; an antenna element pattern formed on a surface of the base; a ground pattern formed in a position adjacent to and opposite to the antenna element pattern on the same surface of the base; and a surface-mounted coaxial connector mounted on the ground pattern in a position close to a feeding point of the antenna element pattern.

Abstract: An antenna device is disclosed that includes: an element member; a ground member; and an adhesive through which the element member and the ground member are held in a predetermined positional relationship and affixed to a mounting object.

Abstract: A communication apparatus is provided that includes an apparatus main frame, an antenna, and a connecting element that connects the antenna to the apparatus main frame and positions the antenna away from the apparatus main frame.

Abstract: A disclosed keyboard includes a housing with a base member, a top plane member, and a membrane switch installed inside the housing. The membrane switch has a first resin sheet, a second resin sheet, and a spacer resin sheet arranged between the first and second resin sheets. The membrane switch includes a UWB flat antenna that has an antenna element pattern formed on the first resin sheet, a microwave transmission line extending from the antenna element pattern, and a ground pattern arranged in a position facing the antenna element pattern.

Abstract: The present invention relates to a decoration technique for providing iridescent color effects or glittering luster effects to a resin casing by attaching a polarizing film in contact with a resin casing, and for finishing a cut-off edge portion of the polarizing film smooth. After forming the polarizing film on a mold having a prescribed shape, a thermoplastic resin is injected into the mold to produce a thermoplastic resin casing to which the polarizing film is firmly attached. When cutting off an excess portion of the polarizing film by using a cutting die, a heater built into the cutting die is energized, and the cut-off edge portion of the polarizing film is fused by the heating of the cutting die, thus fixing the edge portion to the thermoplastic resin.

Abstract: An antenna device includes an antenna part and a dielectric formed on the antenna part. The dielectric is formed to be thicker in a direction of directivity that the antenna part is to be made to have, than in another direction.

Abstract: The present invention discloses an antenna apparatus including a dielectric substrate on which an element including a conductive material pattern is formed. The dielectric substrate is a film.