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 IC card includes: a circuit board on which functional components are mounted; and a frame covered with a thin plate, the circuit board being disposed in the frame, the inside of the frame being filled with a foamed resin. As a result of the above arrangement, an IC card having a strong resistance to various external forces is produced. Furthermore, because it is possible to incorporate a surface material with a design in an integrally molded device, thus it is also possible to produce an IC card device having an excellent appearance.

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: A novel electrophotographic photoreceptor and a method of preparation therof are disclosed. The photoreceptor is characterized in that the photosensitive layer contain a specific carbonate resin binder resin having a weight average molecular weight on not less than 200,000. The resin is preferably a polycarbonate resin which contains repeating units represented by the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are respectively and independently a hydrogen atom, a lower alkyl group, a halogen atom or an unsubstituted or substituted aromatic group; and R.sup.9 and R.sup.10 are respectively and independently a hydrogen atom, a lower alkyl group, an unsubstituted or substituted aromatic group, or form a ring or a carbonyl group together with the linking carbon atom.

Abstract: An IC card comprises a card board having first and second major surfaces and a semiconductor module having an electrode terminal face. The semiconductor module is mounted in the card board, so that the electrode terminal face is exposed onto the first major surface of the card board. The card board comprises a board frame and a resin which is molded inside the board frame. Part of the semiconductor module surface which is opposite to the electrode terminal face, is covered with the resin.

Abstract: Optical recording media include substrates of a larger diameter formed by injection molding a copolymer of ethylene with a cyclic olefin. The media are adapted for high speed rotation with the benefits of a high output, high C/N, and low noise level. When a protective substrate of glass is attached to the polyolefin substrate such that the recording layer is inside, there is obtained a light-weight rigid disk which experiences minimal axial runouts and hence, minimal focusing errors during high rotational speed operation.

Abstract: An optical recording disk is constructed using an injection molded substrate of a cyclic polyolefin having a recurring structural unit of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are independently selected from hydrocarbon groups. The disk has a diameter of at least 200 mm, and is rotated at 1,800 rpm or higher during recording/reproducing operation. Despite a larger diameter, the disk experiences minimized occurrence of double refraction during high speed rotation, ensuring high outputs with a high C/N and a low noise level.

Abstract: A manufacturing method for a thin semiconductor device assembly includes forming an internal frame for positioning an IC module within an external frame that forms the periphery of the thin semiconductor device assembly, positioning the IC module in the internal frame so that an electrode terminal surface of the IC module is exposed, and fixing the IC module in place by filling the external and internal frames with resin.

Abstract: An IC card includes a thin plate forming an external surface of the card, a circuit board formed on an internal surface of the thin plate, and a frame surrounding peripheries of the thin plate and the circuit board. A space defined by the frame and the surface plate is filled with molded resin. A portion of an inner peripheral surface of the frame projects into the resin. The molded resin completely covers a surface of the circuit board and integrates the frame and the thin plate.

Abstract: An optical disk in a cartridge can be identified when loaded in a disk drive system, by changing the openness of a hole in the cartridge to impart at least four types of identifying information, and detecting the openness of the hole by a sensor in the drive system. To establish four different states, two small and large apertures are formed in major walls of the cartridge to define a through window and a shield member is fixedly or slidably mounted between the walls so as to clear or shield a portion or the entirety of the through window.

Abstract: In an air-cooled type cooling system for an engine working machine assembly in which a working machine such as a generator, a compressor and the like is adapted to be driven by an internal combustion engine, there are provided an air-cooled engine, a working machine and an exhaust muffler in a machine area as well as a centrifugal cooling fan in a fan room within a casing. An exhaust air outlet passage and an exhaust air conduction passage are provided in such a manner as to come out in parallel from the periphery of the fan area. Part of the cooling air sucked into the fan area after cooling the engine and the working machine in the machine area is adapted to be discharged directly outside the casing through the exhaust air outlet passage, and the remaining part thereof is adapted to be discharged outside the casing through the exhaust air conduction passage after cooling the exhaust muffler.

Abstract: A bore hole scanner includes a light projecting device for projecting a light beam toward a bore hole wall surface. A conical mirror is arranged coaxially with respect to a sonde for condensing light reflected from the bore hole wall surface. An image forming device is arranged in front of the conical mirror. A photoelectric transducing device converts a light signal into an electric signal. Optical fibers introduce an image, which is formed on concentric circles by the image forming device to the photoelectric transducing device. A data processing device scans and extracts signals from the photoelectric transducing device and generates and processes image data indicative of the bore hole wall surface. A sonde position detecting device detects the orientation and position of the sonde. Rotating portions are dispensed with by using the conical mirror and optical fibers, and a linear CCD array can be used as the photoelectric transducing device.

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: In an engine generator having a work generator arranged at the upper side of an engine of a vertical crank shaft type, the output shaft of the engine projects upwards from the engine crank case so as to be connected to the rotor of the work generator. And the stator is arranged so as to encircle the rotor and to be encircled by an air induction casing. A cooling fan of a centrifugal blower type is located at the upper end of the rotor shaft with the blades thereof directed to the side of the generator so as to supply a cooling air flowing upwards to both the interior and the exterior of the stator during operation.

Abstract: An external memory pack has a circuit board having an electrical contact, a case for covering the circuit board, an opening formed in the case to expose the electrical contact of the circuit board, a slidable shutter for opening and closing the opening and an actuator for actuating the shutter for sliding.