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Signal processing device for piezoelectric sensor
A signal processing device is provided which is designed to process an output of a piezoelectric sensor to produce a signal which indicates a load applied to the...
Ejector cycle system
In an ejector cycle system, a mixing portion of an ejector has a length in a refrigerant flow direction and an equivalent diameter, and a ratio of the length to...
Exhaust gas purification device for engines
A plurality of catalysts are installed in an exhaust pipe, air-fuel ratio sensors or oxygen sensors are installed upstream and downstream of each catalyst, and...
Mechanical acoustic filter with adjustable high-frequency cut-off
A mechanically adjustable acoustic filter for a telephone handset earpiece can be adjusted for users with normal hearing or for hearing-impaired users. The...
Inside/outside air switching device with rotary door
In an inside/outside air switching device, a seal member is provided at a position around a rotation center axial line of a rotary door, for sealing an...
Apparatus for detecting abnormality of a vehicle sensor and method
An apparatus for detecting abnormality of a vehicle sensor and a method are provided. The apparatus is capable of preventing erroneous detection of abnormalities...
Speakerphone feature for a wireless handset
A wireless speakerphone is designed to prevent damage to a user's ear when the phone is placed against the user's ear during speakerphone operation. The phone...
Semiconductor device having heat radiating member
A semiconductor device has a case, a printed circuit board, a fin, and a ceramic substrate mounting a semiconductor element thereon. The case contains the...
Data conversion device having mediator for determining data conversion
A data conversion device for converting analog data to digital data, or digital data to analog data, is composed of a data converter. and a mediator. Plural data...
Adjusting untrimmed VCO during operation of the oscillator
A frequency oscillator tuning process at the manufacturing stage is replaced with an adjustment of a resonant circuit in the frequency oscillator during an...
Operational amplifier designed to have increased output range
An operational amplifier is provided which includes a first and a second output transistor which are selectively activated as a function of a potential...
Voltage control unit for vehicular AC generator
In an apparatus for detecting a rotation by utilizing a residual magnetism remaining in a core, when a field current attenuates gradually through a current...
Brushless AC generator
A brushless AC generator includes a stator having a an armature coil, a rotor, a frame for supporting the stator and the rotor, a pulley driven by a belt, a...
Production method of ceramic moldings
A method of producing a ceramic molding having a desired shape involves extruding a ceramic material that has been pressure-fed into a resistance pipe. By using...
Oxygen concentration detector
An oxygen concentration detector comprises a solid electrolyte 21, a sensing element 2 which consists of the solid electrolyte 21 coated on the surface with an...
Fuel injection pump
A fuel injection pump is provided which stops fuel discharge when a movable member for pressurizing the fuel is lifted beyond top dead center, thereby leaving a...
Heat exchanger with fluid-phase change
In a refrigerant heat exchanger, a flow direction of refrigerant flowing through tubes in each of first and second units is opposite to that flowing through...
Control system for variable displacement engines
An engine can be operated in different modes by varying the number of operating cylinders. In a reduced operating cylinder mode, the intake valve of the...
Obstacle detecting system having snow detecting function
An obstacle detecting system for vehicles has an ultrasonic vibrator having a vibration plate and mounted on a vehicle to transmit and receive an ultrasonic...
Semiconductor physical quantity sensor including frame-shaped beam
surrounded by groove
A semiconductor physical quantity sensor has a beam connecting a movable portion and a support substrate for displacing the movable portion in a displacement...
Automotive airconditioner having condenser and evaporator provided within
The evaporator and the condenser are disposed in a duct. First bypass passage is disposed at the side of the condenser and first air mixing damper rotates to...
Heat-pump water heater
In a heat-pump water heater, an ECU sets a target temperature difference between water flowing into a water heat exchanger and refrigerant flowing out from the...
Vehicle wheel information supply device which supplies smaller data set
earlier than larger data set
A vehicle wheel information supply device disposed on a wheel of a vehicle and supplying wheel information representative of a state of the wheel, to a receiver...
Cooling system for cooling interior of substantially airtight housing
A heater protective device of a cooling system includes a couple of thermostats and one thermal fuse. The thermostats are secured to opposing sides of one metal...
Control switch for synchronous rectification circuit of DC-DC converter
A primary side of a transformer has a switching transistor to on-off control the current flowing in a primary winding on a primary side. A secondary side of the...
Apparatus and method for producing print data of a two-dimensional code and
related recording media
Regular-size white cells are expanded in advance to adjust a boundary between black cells and the white cells before a printing operation is performed. Shrinkage...
AC generator for vehicle
An AC generator for a vehicle includes a plurality of output lead wires having a generally rectangular cross-section with longer sides being parallel to a radial...
Semiconductor device produced by dicing
A protective sheet is fixed to a jig, and regions of the protective sheet corresponding to regions where dicing-cut is to be performed are removed to form...
Insert-molding method for obtaining a resin-molded product
A method of producing an insert-molding product in which an insert product is covered with a synthetic resin by arranging the insert product in a cavity of a...
Inside/outside air switching device having first and second inside air
An inside/outside air switching box has first and second inside air introduction ports, and an outside air introduction port. An inside/outside air switching...
Combustion type heater
A combustion type heater of this invention includes fuel distribution means 11 for distributing a fuel to the whole surface of a wick 10, disposed upstream of...
Vehicle air conditioner and manufacturing method thereof
A vehicle air conditioner has a blower unit and an air conditioning unit having a case and a heater core disposed in a substantially horizontal direction in the...
Heat exchanger having tube joined to core plate and method of manufacturing
A heat exchanger has a tank for accommodating a heat medium therein and a tube connected to the tank through a core plate. Specifically, an end portion of the...
Heat exchanger and brazing method
An assembly (oil cooler unit), under the state where first and second plates (130, 140) prevent a heat exchange core (110) from falling from a casing (120), is...
Refrigerant cycle system
A condenser of a refrigerant cycle system includes a first heat exchange unit into which refrigerant discharged from a compressor flows, a second heat exchange...
Control device for vehicular AC generator, and connector
A control voltage is set to an acceleration control voltage which is higher than a battery voltage V by a predetermined voltage difference .DELTA.V1 within a...
AC generator for an automotive vehicle with enhanced cooling of internal
A cooling fin is fixed to a frame and mounts a plurality of rectifying elements. The cooling fin is configured into a circular ring shape separated at a cutout...
Method of injection-molding coil spool of ignition coil device
A gate to mold a primary spool of an ignition coil device is placed at a part which does not oppose a main part of a secondary coil in the primary spool, that...
Air conditioner with rotary door and filter
In an air conditioner, filter deformation strings are disposed on an outer surface side of a bent portion of a filter, so that the bent portion of the filter is...
Controller for internal combustion engine
A controller for an internal combustion engine is disclosed that improves drivability by always stabilizing combustion. A combustion state is detected based on...
Method of manufacturing a stator
In a twisting formation method having an inside jig provided in a ring shape with inside holding portions for folding one of the straight portions of a near...
Device for controlling sensorless brushless-DC-motor
A sensorless brushless-DC-motor mounted on an electric or hybrid vehicle is powered by an on-board battery through an inverter supplying a three-phase pulse...
Method for manufacturing semiconductor dynamic quantity sensor
A semiconductor dynamic quantity sensor includes a semiconductor support substrate having a specific resistance equal to or less than 3.OMEGA. cm. An insulation...
Sensor failure or abnormality detecting system incorporated in a physical
or dynamic quantity detecting apparatus
A reference voltage generating circuit is constituted by resistors RE and RF each having a resistance not influenced by an application of pressure. The reference...
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...
Hologram screen and a method of producing the same
In a hologram screen for reproducing an image based on an output light obtained by scattering and diffusing an image light from an image projector, when a white...
Vehicular ac generator having voltage control unit
A vehicular AC generator comprises a resistor for ground one-phase output terminal in an armature coil, a switch for connecting and disconnecting at least...
Method of forming oxidized film on SOI substrate
One or more capacitors are formed using thermally oxidized films formed on a silicon layer of an SOI substrate. The capacitors may be formed alone or together...
Cold-warm working and heat treatment method of high carbon-high alloy group
The high carbon stainless steel containing more than 0.5 mass % carbon and more than 8 mass % chromium, or the tool steel containing more than 0.5 mass % carbon...
Door attachment structure
In an attachment structure for attaching a door to a case, plural first ribs and plural second ribs are provided in an inner wall surface defining an attachment...