At Patents you can conduct a Patent Search, File a Patent Application, find a Patent Attorney, or search available technology through our Patent Exchange. Patents are available using simple keyword or date criteria. If you are looking to hire a patent attorney, you've come to the right place. Protect your idea and hire a patent lawyer.
Moisture sensor device and self-diagnosing method therefor
A moisture sensor device includes a sensor portion having a capacitance that is varied in accordance with surrounding humidity, a signal processor for processing...
Short circuit detecting circuit and abnormality monitoring signal
In order to drive an L load, FETs are disposed so as to be mirror-paired with FETs disposed at the power source side and the ground side respectively, and...
Switching regulator with frequency modulation to vary frequency based on a
load condition, and control method...
In a frequency modulation type switching regulator for producing an output voltage to a load, an error amplifier produces an error voltage indicative of a...
Motor control apparatus
An object of the present invention is to provide a motor control apparatus having excellent harmonic current control performance, that can simplify circuit...
Motor control apparatus
Before an amount of play in a rotation transmitting system is learned, for selecting a gear range, an overshooting control process is performed to cause the...
A spark plug is disclosed as including a metal shell 10 formed with first and second bores 10c, 10d and a stepped section 10e between the first and second bores,...
A pressure sensor chip includes a diaphragm and pads. A flexible printed circuit board (FPC) includes a resin sheet having a through-hole and wiring patterns...
Base material having thereon polyaniline-containing film surface, and
process for forming film surface on base...
In a heat exchanger having tubes and fins, a polyaniline film made of polyaniline and/or a derivative thereof is formed on the surfaces of the tubes and the...
A vehicular air-conditioner wherein when a detected temperature of an inverter temperature sensor (22g) exceeds a predetermined value, an inverter (6) driving an...
Exhaust emission control system for internal combustion engine
An exhaust emission control system for an internal combustion engine is located on a vehicle and provided with a particulate filter to accumulate particulate...
Receiver having a built-in antenna and method of impedance-matching for
A receiver includes an antenna, an impedance-matching circuit, a receive circuit, a control circuit, a digital-to-analog (D/A) converter, a mode switch, and an...
Optical device having optical waveguide and method for manufacturing the
An optical device includes: a silicon substrate; a plurality of silicon oxide columns having a rectangular plan shape; and a cavity disposed between the columns....
Printed board and meter unit provided therewith
A printed board has a board, an electrically insulative membrane, formed on the board, and an electrically conductive membrane, formed on the electrically...
Integrated antenna and method of manufacturing the same
In an integrated antenna, an antenna characteristic of a first antenna element is obtained when the first antenna element and a second antenna element are...
Map display device
When a control circuit extracts data of an entity corresponding to a phone number, the control circuit retrieves phone numbers that accord, with respect to lower...
Vehicle security system
When transmitting an instruction for activating an immobilizer function to a subject vehicle, a base station also transmits a given ID code for releasing the...
Rotation detection apparatus utilizing array of magnetoresistive element
bridges and method of designing the...
A rotation detection apparatus utilizes a bias magnet and an array of four or more sets of magnetoresistive elements, with each set producing an output potential...
Switching controller and method for controlling switching position
A second member and a first member are applied with bias force to mechanically engage with each other at one of detent positions defining relative positions...
Load drive control apparatus having minimized power consumption when
functioning in waiting status
In a load drive control system containing a control apparatus and a drive apparatus which drives a load in accordance with a drive control signal supplied from...
Method and apparatus for driving and controlling on-vehicle loads
In an apparatus for driving and controlling plural on-vehicle electrical loads, an on-vehicle power supply generates power to be supplied the loads each having a...
Silicon carbide semiconductor device and manufacturing method
A silicon carbide semiconductor device that includes J-FETs has a drift layer of epitaxially grown silicon carbide having a lower impurity concentration level...
Apparatus for optically reading target
In an apparatus for optically reading a target based on a light reflected from the target, a light source has a first optical axis and operates to emit light. An...
Laser welding method, laser welding structure, and throttle valve device
A throttle valve and a throttle shaft are welded to each other. Here, the throttle valve is made of resin material having a transmission property for a laser...
Occupant crush protection system
An occupant crush protection system for a vehicle includes an occupant protection device, such as a seatbelt retraction device, powered by a vehicle battery, a...
Vehicle air-conditioning system
A vehicle air-conditioning system improves a passenger's sensation of cooling by preventing air blown from a foot opening when a cooling load is low, creating a...
Fuel vapor adsorbing devices
A fuel vapor adsorbing device (10, 60, 70, 70', 80) for adsorbing residual fuel vapors that remain in an intake conduit (1, 2, 3, 4) of an induction system of an...
Ignition timing controller for internal combustion engine
A crank angle sensor outputs a crank angle signal pulse every when a crankshaft rotates a predetermined crank angle. A time period sufficient for rotating a...
Electrical shield structure for pressure sensor
A pressure sensor includes a case having a concave portion, a sensing portion disposed in the concave portion to output an electrical signal proportional to an...
Exhaust gas purification system of internal combustion engine
An electronic control unit (ECU) calculates a pressure loss in an exhaust passage downstream of a diesel particulate filter (DPF) fluctuating in accordance with...
Navigation system incorporating antenna
A navigation system incorporating an antenna includes a cabinet constructed of electroplated case and cover. An antenna element is integrated to the cabinet and...
Obstacle monitoring device using one-dimensional signal
Luminous values of pixels of coordinates previously set as an obstacle presence line are inputted to a memory as a one-dimensional signal converted from a...
Hysteresis comparator circuit
An input voltage is applied to an inverting input terminal of a comparator having no hysteresis. A first constant voltage is divided by resistors to create a...
Rotation detecting device
In a rotation detecting device attached to an end face of a hub bearing for an automobile, a sensor body (a resin molded member) having a holder member and a...
Method and apparatus for controlling on-vehicle generator
An apparatus for controlling an on-vehicle generator is provided. The apparatus comprises a switching element, current detecting unit, setting unit and driving...
Method of control of magnetic sound of alternating current rotating
A method for greatly reducing magnetic sound of an alternating current rotating machine compared with the past comprising superimposing an n-1-th order frequency...
Spark plug with multiple ground electrodes
A spark plug according to the present invention includes a metal shell, an insulator, a cylindrical center electrode, a first ground electrode, and a second...
Vertical type semiconductor device
In a vertical type MOSFET device having a super junction structure, in which a N conductive type column region and a P conductive type column region are...
Nonaqueous electrolytic solution and nonaqueous secondary battery using
A nonaqueous electrolytic solution comprising an electrolyte salt dissolved in an organic solvent is disclosed. The nonaqueous electrolytic solution contains a...
Driving condition control method and system
In a driving condition control system, a sensing unit senses a first physical quantity indicative of a rotation of the first rotatable axle assembly and a second...
Passenger protecting system for automotive vehicle having safeguard
A plurality of passenger protecting devices, such as airbags or seatbelt pretensioners, are actuated by a controller upon detection of a collision. According to...
Emission gas recycling equipment having butterfly valve
Emission gas recycling equipment includes a passage for recycling a part of an emission gas and a control valve for controlling an amount of the part of the...
Fuel injection valve having small sized structure
A fuel injection valve includes a valve member, a movable core, a fixed core, and a coil. The valve member opens and closes a nozzle hole. The movable core...
Multi-point grounding plate for fuel pump module
A fuel pump module has a flange located proximate to the top of the fuel tank, a first strut rod, a second strut rod, a fuel inlet tube and a fuel outlet tube,...
Controller for direct injection internal combustion engine
A direct injection engine is provided with valve timing controllers in an intake side and an exhaust side. While the engine is running in a homogeneous...
Abnormality diagnosis apparatus and engine cooling system having the same
A coolant temperature of coolant in a circulation line system is measured through a coolant temperature sensor and is controlled by controlling a flow rate...
Compact pressure sensor with high corrosion resistance and high accuracy
A pressure sensor mainly includes a sensor chip, a circuit chip, and a substrate. The sensor chip is configured to generate an electrical signal representative...
Gas pressure sensor
A gas pressure sensor 100 is disclosed as including a housing 10 to which a pressure is adapted to be introduced, a stem 20 communicating with the housing to...
Method and unit for sensing physical quantity using capacitive sensor
A physical quantity (e.g., acceleration) sensing unit is provided. In this unit, a capacitive sensor has first and second fixed electrodes and a ...
Tire air pressure detection system
A tire air pressure detection system having a transmitter provided at each of a plurality of wheels provided with tires and sending out a detection signal...
A gas sensor has a sensor element inserted in a cylindrical housing. A measured gas cover, provided at a distal end side of the housing, forms a measured gas...