Abstract: A semiconductor device includes two semiconductor chips that are interposed between a pair of radiation members, and thermally and electrically connected to the radiation members. One of the radiation members has two protruding portions and front ends of the protruding portions are connected to principal electrodes of the semiconductor chips. The radiation members are made of a metallic material containing Cu or Al as a main component. The semiconductor chips and the radiation members are sealed with resin with externally exposed radiation surfaces.

Abstract: A plastic pipe 10 is a pipe utilized in a cooling water systems, and the bonding strength of each layer is heightened, and resistance capabilities of the antifreeze solution are enhanced. The plastic pipe 10 comprises an inner layer 22 formed from either a polyphenylene sulfide or an aromatic polysulfide, which is a denatured substance thereof, an intermediate layer 24, which is a mixture of PPS resin and a polyamide resin, and an outer layer 26 including a polyamide resin. The inner layer 22 is formed such that permeation of an antifreeze, which has mainly ethylene glycol, is less than 3.0 g/m2 per day. The resistance capabilities of the antifreeze solution can be achieved by making the thickness of the inner layer 22 0.2 mm or greater.

Abstract: An inventive frequency modulated continuous wave (FMCW) radar system realizes both a quick detection of a higher relative speed provisional target and a sure detection of a smaller relative speed provisional target. The number of detection cycles used for a paring validity check, used to see if a detected target or a pair of frequencies is an actual target or a pair for an actual target, is set in response to the relative velocity enabling the target information for a target of higher relative velocity to be output more quickly.

Abstract: A button battery is installed in a electronic device such as a signal transmitter and electrically connected by a terminal contacting a flat electrode terminal of the button battery. The terminal has a circular spring-contact member surrounding a terminal base, and the spring-contact member is connected to the terminal base by a pair of connecting portions. The terminal base is fixed to a substrate by soldering. Since the spring-contact member is formed in a circular shape, its length can be made sufficiently long to make its spring modulus low and to reduce spring-load imposed thereon, thereby avoiding plastic deformation of the spring-contact member. The terminal base soldered to the substrate is prevented from being peeled off by eliminating twisting force applied to the spring-contact member.

Abstract: An EL device includes a control unit that controls a driving circuit so that a plurality of EL elements emits light several times per driving cycle. Specifically, when a driving voltage is applied to the plurality of EL elements, the plurality of EL elements emits several times per driving cycle. As a result, since the amount of light integrated per time increases, the plurality of EL elements obtains high luminous power even if a plurality of El elements having a very short emission decay time is used.

Abstract: A pressure sensor includes a sensing element in a sensing chamber defined by two cases, one of which is crimped to the other. An internal pressure of the chamber is affected by a crimping force. In the manufacturing process of the pressure sensor, the internal pressure is monitored during crimping the cases. To monitor the internal pressure, the sensing element of the pressure sensor is used. An output signal of the sensing element is sent to a crimping machine. The crimping machine controls a crimping force based on the output signal.

Abstract: A power measurement element (106) measures (302) the wide-band received signal power of a receiver (102), and a wide-band AGC system (108) transfers (306) receiver gain control from an on-channel AGC system (110) to the wide-band AGC system, when the wide-band received signal power exceeds a pre-programmed threshold for longer than a pre-programmed delay time. The wide-band AGC system is arranged and programmed to decrease (308) a front-end gain of the receiver through a plurality of gain steps of a pre-programmed size (208) applied at a pre-programmed rate until the received wide-band signal power falls below the pre-programmed threshold.

Abstract: In a process of manufacturing a semiconductor device, after a gate oxide film is formed, the thickness of the gate oxide film is measured by measuring an exposure period defined from a time at which the oxide film is formed to a time at which the thickness of the oxide film is measured. In addition, if necessary, the measurement of the oxide film is corrected to determine the real thickness based on the exposure period. Accordingly, the thickness of the gate oxide film can be measured accurately.

Abstract: A torque sensor has a torsion bar coaxially in alignment with input and output shafts, a ring shaped magnet fixed to an axial end of the input shaft, a pair of magnetic yokes fixed to an axial end of the output shaft, and a magnetic sensor for detecting magnetic flux density generated between the pair of magnetic yokes. Each of the magnetic yokes is provided with claws, which are circumferentially spaced at constant intervals, and whose number is equal to that of each of N and S poles alternately arranged circumferentially in the magnet. Each center of the claws coincides with a boundary between immediately adjacent N and S poles of the magnet, when the torsion bar is not twisted. The magnetic sensor is inserted into an axial gap between the pair of magnetic yokes without contacting the magnetic yokes.

Abstract: A lower metal block of a stator includes a plurality of securing projections, which engage with an external member and are arranged in an outer peripheral surface of the lower metal block at generally equal angular intervals. Each securing projection is circumferentially located between corresponding two of slits of the lower metal block and has first and second axial ends, which are opposed to one another in a direction generally parallel to the axial direction of the stator and are oriented toward first and second axial ends, respectively, of the stator. The first axial end of each securing projection is axially positioned within an axial extent of the slits, which is measured in the axial direction of the stator.

Abstract: An anti-theft device monitors an object or person approaching a vehicle from the surrounding area of the vehicle by using a surrounding area sensing sensor when an authorized vehicle user moves away from the vehicle which causes the anti-theft device to be activated. If the anti-theft device detects the object or person, the anti-theft device activates an alarm. The anti-theft device transmits images and surrounding area details of the vehicle to the information center. If the vehicle is illegally accessed, the occurrence of any illegal activity is detected by a break-in sensor that issues a break-in alarm, simultaneously with the transmission of vehicle information to the information center, indicating the current disposition of the vehicle. Then, the information center determines that the vehicle is being illegally operated and transmits the vehicle information accumulated at that moment to a manager terminal.

Abstract: The hybrid compressor apparatus is composed of a compressor in which fluid is compressed by varying a volumetric capacity of a compression space provided between a first compression member and a second compression member, which are movable independently of each other, according to rotation of the first compression member relative to the second compression member, a motor rotatable upon receipt of power of an external electric source, and a driven member rotatably driven by motive force transmitted from an external driving source. The first compression member is connected with the driven member and the second compressor is connected with the motor. If maximum discharge amount is required for the compressor, the motor is driven separately by a control device when the driven member drives the first compression member so that the second compression member is rotated in a direction opposite to that of the first compression member.

Abstract: A map data production system includes a workstation, a keyboard, a mouse, a data storage and a display. The data storage stores road map data. A section of a road on a map read from the data storage and displayed on a display. An access road, grade data of which will be added or altered, is specified by clicking its start and end points on the map with the mouse. An elevation value of the road in the specified section is entered at a data entry screen display on the display by a user via the keyboard. A grade value of the road in the specified section is calculated from the entered elevation value and map data stored in the data storage. The calculated grade value is added to the road map data and stored in the data storage.

Abstract: An electronic control unit (ECU) includes onboard type electronic components and non-onboard type electronic components inside an aluminum case. The ECU has a circuit board for mounting the onboard type electronic component in a first portion of a bottom surface, and a concavity for installing the non-onboard type electronic components in a second portion of the bottom surface. A resinous frame is provided in the concavity to house and hold the non-onboard type electronic components.

Abstract: A capacitance type dynamic quantity sensor device includes a sensor chip having movable electrodes and sensor-chip side fixed electrodes disposed to confront the movable electrodes in a substrate surface horizontal direction X and a circuit chip disposed to confront the sensor chip. The movable electrodes are joined to the substrate through spring portions having degrees of freedom in the substrate surface horizontal direction X and the substrate surface vertical direction Z, so that the movable electrodes are displaceable in both the directions X and Z. A circuit-chip side fixed electrode is equipped at the site corresponding to the movable electrodes. The sensor chip and the circuit chip are electrically connected to each other through bump electrodes.

Abstract: In a hybrid compressor for a vehicle where a vehicle engine is stopped when the vehicle is temporally stopped, a pulley, a motor and a compressor can be driven in independent from each other, and are connected to a sun gear, planetary carriers and a ring gear of a planetary gear. A rotational speed of the motor is adjusted by a controller, so that a rotational speed of the compressor is changed with respect to a rotational speed of the pulley. Accordingly, production cost of the hybrid compressor and the size thereof can be reduced, while a cooling function can be ensured even when the vehicle engine is stopped.

Abstract: A resinous tube has opposite ends into one of which a mating member is fitted and with which the mating member is connected, and includes a sealing ring, a fastening cap, and a clamp. The sealing ring is disposed on an inner peripheral surface of the opposite end, and contacts elastically with an outer peripheral surface of the mating member. The fastening cap is disposed on the inner peripheral surface of the opposite end on an outer end side thereof with respect to the sealing ring, and contacts elastically with the outer peripheral surface of the mating member. The clamp is disposed on an outer peripheral surface of the opposite end, which is provided with the fastening cap on the inner peripheral surface, and tightens the fastening cap. The resinous tube exhibits good sealing and fastening abilities, requires less component parts, and can be connected with any mating members.

Abstract: An actuator housing located between an external plate and internal plate of a door is electrically and mechanically connected with an ECU housing via water-proof elastic members, which are provided in an opening section of the internal plate and in an outer circumference of the opening section, by the first and the second connector. Further, a box nut provided in the actuator housing and a bracket provided in the ECU housing are connected with each other by a bolt while interposing the internal plate and the water-proof elastic sheet. Due to the foregoing, the mechanical strength of mounting the entire function control unit on the door can be enhanced. Accordingly, even when vibration or shock is given to the inside-door-function control unit while the door is being opened and closed or the vehicle is running, it is possible to prevent the inside-door-function control unit from being incompletely mounted on the door.

Abstract: In an ultrasonic transceiver, an inner housing has a bottom portion, a first tubular side wall extending from one end surface of the bottom portion and a first flange portion formed on an outer peripheral portion of the first tubular side wall. The bottom portion and first tubular side wall provide a tubular cavity formed therebetween, and the piezoelectric member is mounted on the one end surface of the bottom portion in the tubular cavity. An outer housing has a second tubular side wall coaxially arranged around the outer peripheral portion of the first tubular side wall with a predetermined gap therebetween. The second tubular side wall is provided with one end portion which is opposite to one end surface of the first flange portion and contacted thereto. A first absorption member is inserted in the gap between the first tubular side wall and the second tubular side wall.

Abstract: In an integrated pressure sensor including a semiconductor substrate having a p type single crystal silicon substrate and an n type epitaxial layer of which a portion is etched by electrochemical etching to have a diaphragm, an impurity diffusion layer piercing the n type epitaxial layer at least defining the diaphragm is formed for isolation. An etching wire is formed on the surface of the n type epitaxial layer with insulation and the first end of the etching wire extends to the inside of the surface and connected to the n type epitaxial layer. The second opposite end extends to an edge of the semiconductor substrate. The etching wire does not cross the impurity layer inside the surface of the semiconductor substrate to prevent the etching wire from short-circuiting with the impurity diffusion layer during the electrochemical etching.