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Silicon carbide semiconductor device having enhanced carrier mobility
The principal surface of a p-type SiC substrate (1) is formed of a face intersecting (0001) Si-face at 10 to 16.degree.. An n.sup.+ source region (2) and an...
Night vision system and control method thereof
A second circuit separately extracts a synchronization signal and brightness signal from an image signal output from a camera for capturing an image of a...
Foreign material removing method for capacitance type dynamic quantity
In a capacitance type acceleration sensor comprising a movable portion which is equipped with movable electrodes, a poise portion and spring portions formed on a...
Gas sensor element
A gas sensor element which may be employed in measuring the concentration of gas such O.sub.2, NOx, or CO. The gas sensor element consists of an electrochemical...
Method and apparatus for manufacturing single crystal
A method for manufacturing a single crystal includes the steps of: flowing a raw material gas toward a seed crystal in a reactive chamber so that the single...
Non-contact IC card having enhanced reliability
To increase the reliability of a non-contact IC card for use in such applications as a door key, etc., two separate combinations of an IC chip and an antenna...
Electrically driven power steering system for vehicle
It is an object of the present invention to provide an electrical power steering system for a vehicle, in which an abnormal condition of a motor current...
There is provides a heat exchanger comprising: a plurality of tubes (110) stacked on each other; and a pair of header tanks (140), each header tank (140) having...
Structure connecting heat exchanger to shroud improving workability in
assembling or disassembling them
A fan shroud 4 is assembled to a cooling module in such a way that the fan shroud 4 covers brackets 3 that have been assembled to the cooling module, that is, a...
Pressure sensor device having temperature sensor
A pressure sensor device having a temperature sensor includes a pressure sensor, a temperature sensor, a sensor casing for accommodating the pressure sensor and...
An airflow meter has a bypass passage disposed in an air passage and a sensing portion disposed in the bypass passage to detect an airflow amount. The bypass...
Refrigeration cycle system
A refrigeration cycle system is disclosed. Upon generation of a start signal for a hot gas heater cycle, the cooling mode is first started thereby to start the...
Method of manufacturing commutator of rotary electric machine
A method of manufacturing a commutator of a rotary electric machine includes a step of forming a first unitary material having nail portions, a step of forming a...
Manufacturing method for a spark plug
In a bond step, one end of ground electrode is bonded to a metallic housing. In a provisional bending step performed after the bonding step, an intermediate...
Knock determining apparatus and method for internal combustion engine
A plurality of variables representing the characteristics of a knock is obtained from an output signal of a sensor. The variables include a peak value of the...
Device for detecting object in front of vehicle
A device including a radar and a camera for detecting an object located in front of an automobile is mounted on the automobile. The radar detects a distance from...
Thin film electromagnet and switching device comprising it
The present invention provided a thin-film electromagnet including a magnetic yoke and a thin-film coil, characterized in that the magnetic yoke includes a first...
Apparatus and method for controlling drive of plural actuators
An apparatus for controlling drive of a plurality of actuators is provided. The apparatus comprises a plurality of drive circuits respectively driving the...
Power transmission device
A power transmission device which interrupts torque transmission when the torque exceeds a predetermined torque. A torque limiter includes projections formed on...
Compressor provided with torque limiter
A compressor provided with a torque limiter constructed such that, in view of possible occurrence of accidental locking of the compressor, in the case where a...
Fins such as corrugated fins or plate fins are formed with meandering projections. A fluid such as air strikes bent parts of the meandering projections or...
System for diagnosing degradation of air-fuel sensor
An air-fuel ratio detected by an air-fuel ratio sensor is periodically varied by executing a PI control. During the PI control, a time period in which the...
Drive shaft coupling device
An oil supply means is provided to supply the center portion of a rotating part of an Oldham coupling with oil. The oil spreads from the center of rotation to...
A starter capable of preventing the slippage of a clutch at engine starting and of transmitting a higher torque. In the starter, a power transmission device is...
Semiconductor mechanical sensor
A semiconductor mechanical sensor having a new structure in which a S/N ratio is improved. In the central portion of a silicon substrate 1, a recess portion 2 is...
Gas-liquid separator and ejector refrigerant cycle using the same
In an ejector refrigerant cycle, even if refrigerant is super-heated in an evaporator, super-heated gas refrigerant does not directly flow into a gas-liquid...
Vehicle occupant detection apparatus providing status information
concerning occupant of vehicle seat
A vehicle occupant detection apparatus having a plurality of load sensors located to produce analog signals indicative of the presence/absence of a seat occupant...
Electromagnetic switch for starter
In an electromagnetic switch of a starter, a bobbin has two terminal holders on a flange. Each of the terminal holders defines a slot on its end surface and a...
Oil deterioration detection apparatus
An oil deterioration detection apparatus includes a sensor, an evaluation circuit, and a malfunction detecting circuit. The evaluation circuit has a...
Power control circuit
A power control circuit includes a switching regulator for converting voltage of external electric power into a medium voltage, a series regulator for converting...
Electrical actuator system and vehicle air conditioner using the same
In a vehicle air conditioner with an electrical actuator system, a transmission mechanism transmits a rotation force of an electrical motor to an air mixing door...
Motor driving device
A temperature sensor (33) detects the temperature of a MOS transistor (7), and a current detecting circuit (35) detects current flowing in the MOS transistor...
Stator winding with coated insulation film arrangement for a rotary
A vehicle rotary electric machine includes a rotor, a stator having a stator core and a stator winding mounted in the stator core and a pair of frames for...
Bearing device and AC generator for vehicles using the same
An AC generator for a vehicle includes front and rear bearings held by a housing, a stator disposed in the housing, a rotor having a rotation shaft rotatably...
Stabilization of dopant concentration in semiconductor device having
A method for manufacturing a semiconductor device includes: forming a trench in a predetermined layer of a semiconductor substrate; heating the substrate having...
Manufacturing method of semiconductor device
By improving profile of impurity concentration in a channel portion of an FET or an IGBT of a trench gate type, variation of threshold value is lessened, and a...
Adsorbent for heat utilization system, adsorbent for regenerator system,
regenerator system comprising the...
An adsorbent for regenerator systems, to a heat utilization system and a regenerator system that comprise the adsorbent, and to a ferroaluminophosphate and a...
Through-in grinding method and through-in grinding apparatus
In centerless grinding there are the in-feed and the through-feed scheme, each having their respective advantages and disadvantages.When a work being machined by...
Pedestrian-vehicle collision detecting apparatus
A pedestrian collision detecting apparatus for motor vehicles is provided which works to distinguish between impacts with pedestrians and other sorts of impacts...
Heat exchanger having projecting fluid passage
A heat-exchanging plate member has a pair of heat-exchanging plates, each of which has projection ribs and fluid passage forming portions arranged alternately....
Heat exchanger for cooling air
In a heat exchanger for cooling air, tubes are disposed vertically and header tanks are connected to the ends of the tubes. The lower side header tank is formed...
Heat exchanger module
Brackets 3 made of resin are provided between the radiator 1 and the condenser 2, and the heat exchangers 1 and 2 are secured to the brackets 3, so that heat...
Pressure sensor and related method
A pressure sensor and related manufacturing method are disclosed wherein a connector case 10 is coupled to a housing 30 in a unitary structure. The connector...
A pressure sensor includes a semiconductor substrate having a diaphragm in which an electrical circuit including a gauge resistance is formed, an insulation film...
Pressure sensor having sensor chip and signal processing circuit mounted
on a common stem
A pressure sensor for detecting a pressure such as a brake oil pressure in an automobile is composed of a cylindrical stem, a sensor chip and a circuit board for...
Integrated drain tube plumbing tray
A mounting arrangement for an automobile heating core includes a dash panel defining a boundary between a passenger compartment and an engine compartment. The...
Manufacturing method of rigid-flexible printed circuit board and structure
In a manufacturing method of a rigid-flexible printed circuit board, slits for defining two sides of a removing portion are formed in a part of plural resin...
Image display system scrolling image at high speed using data compression
When a user pushes a scroll-direction key, an ECU obtains, from a memory, a division map corresponding to a division located in a direction designated by the...
Operational amplification circuit, overheat detecting circuit and
In a circuit according to the present invention, a multi-collector transistor is provided which includes first to third collectors so that, when a current does...
Rotational angle detecting device
In a rotational angle detecting device, an auxiliary magnet is disposed so as to surround a Hall element around the Z-axis, so that variation of offset magnetic...