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Patent # Description
US-6,439,030 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...
US-6,438,993 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...
US-6,438,946 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...
US-6,438,227 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...
US-6,435,960 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...
US-6,434,457 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...
US-6,434,407 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...
US-6,434,006 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...
US-6,433,716 Data conversion device having mediator for determining data conversion order
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...
US-6,433,644 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...
US-6,433,636 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...
US-6,433,519 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...
US-6,433,457 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...
US-6,432,341 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...
US-6,432,289 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...
US-6,431,842 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...
US-6,431,264 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...
US-6,431,154 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...
US-6,431,001 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...
US-6,430,999 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...
US-6,430,951 Automotive airconditioner having condenser and evaporator provided within air duct
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...
US-6,430,949 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...
US-6,430,484 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...
US-6,430,364 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...
US-6,430,063 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...
US-6,429,951 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...
US-6,429,556 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...
US-6,429,506 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...
US-6,428,732 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...
US-6,428,409 Inside/outside air switching device having first and second inside air introduction ports
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...
US-6,427,924 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...
US-6,427,771 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...
US-6,427,769 Heat exchanger having tube joined to core plate and method of manufacturing the same
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...
US-6,427,768 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...
US-6,427,480 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...
US-6,426,609 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...
US-6,426,575 AC generator for an automotive vehicle with enhanced cooling of internal elements
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...
US-6,426,032 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...
US-6,425,819 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...
US-6,425,371 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...
US-6,425,175 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...
US-6,424,798 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...
US-6,423,563 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...
US-6,422,088 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...
US-6,422,078 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...
US-6,421,147 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...
US-6,420,855 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...
US-6,420,281 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...
US-6,419,770 Cold-warm working and heat treatment method of high carbon-high alloy group steel
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...
US-6,419,206 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...
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