Abstract:
A speaker diaphragm contains a material obtained by adding a cycloolefin polymer resin to a carbon fiber-reinforced liquid crystal polymer. The speaker diaphragm having high sound velocity, a speaker, and a production method of the speaker diaphragm can thereby be obtained.
Abstract:
An RFID tag is characterized in that it includes: a dielectric substrate; a ground conductor portion disposed on one main surface of this dielectric substrate; a patch conductor portion disposed on another main surface of the above-mentioned dielectric substrate and forming a slot; electrical connecting portions internally extending from opposing sides of the above-mentioned slot, respectively; and an IC chip placed in the above-mentioned slot and connected to the above-mentioned electrical connecting portions.
Abstract:
A code disk for a high-resolution encoder that can detect an absolute position and a method for manufacturing a mold to produce the code disk are provided. The code disk is formed by using transparent substrate. The code disk includes a plurality of tracks provided on the transparent substrate and an area provided between the plurality of tracks. Each surface of the plurality of tracks has a different pattern. A level of the area is different from that of the each surface of the plurality of tracks. The method for manufacturing the mold includes steps of processing a plurality of tracks with a flat surface on material; processing an area with a level different from that of each surface, between the plurality of tracks; forming different patterns on the each surface; plating the first material; and peeling plating from the first material to obtain a mold.
Abstract:
A code disk for a high-resolution encoder that can detect an absolute position and a method for manufacturing a mold to produce the code disk are provided. The code disk is formed by using transparent substrate. The code disk includes a plurality of tracks provided on the transparent substrate and an area provided between the plurality of tracks. Each surface of the plurality of tracks has a different pattern. A level of the area is different from that of the each surface of the plurality of tracks. The method for manufacturing the mold includes steps of processing a plurality of tracks with a flat surface on material; processing an area with a level different from that of each surface, between the plurality of tracks; forming different patterns on the each surface; plating the first material; and peeling plating from the first material to obtain a mold.
Abstract:
An oil level sensor for detecting an oil level is arranged in an engine oil pan. The oil level sensor includes a mounting section and a sensing section. An air hole is formed at an upper end of a cover member of the sensing section. The air hole is surrounded by a tubular portion of a shield member attached to a baffle plate of the oil pan. Therefore, any splashed engine oil in the oil pan is restricted from entering the cover member of the sensing section through the air hole. Also, a clearance (α) for venting air is formed between the tubular portion and the baffle plate.
Abstract:
A diesel engine having cylinders disposed in a V shape is constructed as compact as possible so that it can be adapted to either vertical and horizontal use without changing many parts. To this end, intake and exhaust cams and a fuel injection pump driving cam are disposed on a single camshaft to thereby obviate the necessity of a plurality of camshafts. In addition, a fuel pump, which has conventionally been disposed in a separate fuel injection pump case outside a cylinder block, is disposed inside the cylinder block. Furthermore, a fuel injection nozzle is disposed on an inner side of a pushrod and the pushrod and fuel injection nozzle are disposed between the cylinders, whereby a compact construction is obtained. Moreover, a governor device and a fuel injection pump are disposed on a side opposite to a crankshaft of the camshaft.
Abstract:
An IC card production method includes the steps of mounting a card board (12) having a through opening onto a lower mold (16) of molding dies (15), mounting a semiconductor module (2) onto the opening of said card board (12), tightening an upper die (17) of the molding dies (15) having a gate (19) onto a lower die (16), and molding by injecting resin (13) into the opening from the gate (19) in a state in which only an electrode terminal face (7) for external connection of the semiconductor module (2) is exposed. The IC card includes a card board (12) having a through opening, a semiconductor module (2) mounted onto this opening, and a molded resin (13) injected into said opening so that the resin moding is formed under such condition that only an electrode terminal face for external connection (7) of said semiconductor module (2) is made to expose.
Abstract:
An information collecting system comprises an access terminal connectable to a data base through a network and a host computer, an IC memory card adapted for removable insertion into the access terminal, and a portable personal terminal. Requests for an item of information, from a customer, are inputted and recorded in the IC memory card using the personal terminal and the IC memory card is inserted into the access terminal. The request for information is transmitted through the access terminal to the data base and the requested information, transmitted from the data base, is stored in the IC memory card. Thereafter, the IC memory card, storing the information, is inserted into the personal terminal whereby the requested information is displayed on a display formed in the personal terminal.
Abstract:
An electronic apparatus comprising a case housing a printer unit. The case includes an upper case portion and a lower case portion. The upper case portion has a first recording medium insertion port, and the lower case portion has a second recording medium insertion port. The angle between the direction in which a recording medium is inserted into the first recording medium insertion port and the direction in which the inserted recording medium is carried in the apparatus is larger than the angle between the direction in which a recording medium is inserted into the second medium insertion port and the direction in which the last-mentioned inserted medium is carried in the apparatus.
Abstract:
Connection structure for connecting electrically and mechanically electronic components or devices, such as a printed circuit board, an LSI, an IC, a display device, a switch, a printer unit or a battery, by using a noise shield plate which is made from an electrically conductive resilient thin plate for shielding electrically the electronic components from external electrical noise and which is contained in the case. The connection structure greatly reduces the number of parts required for the structure and the number of assembly steps when assembling the structure, and thus the connection structure is provided at a lower cost.