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Patent Searching and Data


Matches 701 - 750 out of 1,305

Document Document Title
JP11021834
To precisely judge the frozen state of a road surface even when a antifreezing agent is scattered by setting a temperature sensor for detecting the road surface temperature and a wet sensor for detecting the wet state of the road surface...  
JP11014484
To allow a plurality of pressure sensitivity of a semiconductor pressure sensor. On a differential diaphragm 65, a rigid body 58 is formed annularly along the outside periphery of its central region, while on the side of a p-type diffusi...  
JP11014483
To enable the improvement of ambient temperature characteristics by providing a compensation capillary tubes to compensate for errors in ambient temperature for each of the low-pressure side pressure side and the high-pressure side. A lo...  
JP2878592
PURPOSE: To obtain a draft gage enabling correct measurement of a differential pressure even in a strong wind. CONSTITUTION: A first takeout nozzle 12 of a draft gage 10 is installed outside a heating furnace so as to take out the atmosp...  
JP11002579
To enable accurate pressure detection without any influence of environmental conditions of a fluid in a cavity by disposing a silicon substrate opposite to a glass substrate to form a reference pressure chamber. Silicon substrates 11, 31...  
JP10332512
To obtain the differential pressure sensor which does not require a power source to detect differential pressure. The differential pressure sensor is equipped with a pressure sensitive film 7 which has its end part fixed and supported by...  
JP10328548
To enable surely agitating solution in a tank in a short time by installing upper part agitating air piping for agitating solution in the upper part in a storage tank and lower part agitating air piping for agitating solution in the bott...  
JP10325757
To provide an environmental-condition measuring apparatus, for an apparatus carried on an artificial satellite, by which, when a change in an environmental condition inside a sealed-up container carried on the artificial satellite is mea...  
JP10325775
To provide a pressure restrictor whose durability is excellent and by which a pressure can be regulated with good accuracy. A pressure restrictor 4 is constituted so as to be arranged and installed in the halfway part of a pressure-guide...  
JP10318867
To provide a pressure measurement device of a seal-structure wherein, being resistant against corrosion and low cost, no measurement fluid is leaked even at a low temperature. A detector main body 1 comprising a seal diaphragm 2 and a pr...  
JP2853370
PURPOSE: To obtain a fluid density detector which can control the fluid density with good accuracy and has high reliability and to obtain a pressure abnormality detector which can detect with good accuracy for the drastic abnormal rise o...  
JP10293051
To positively achieve a specific flowing water detection function without any risk of water leakage when using a device under a high internal pressure condition. In a flowing water detector 1, a flowing water detection path 10 with a lon...  
JP10274587
To prevent the damage of a capillary tube by composing a high pressure side or low pressure side pressure transmitting means of the coil-like capillary tube and an expandable, strong protective pipe covering the capillary tube. A differe...  
JP10253479
To provide a pressure or differential pressure transmitter that has high output stability by relieving a heat sensitive element and a center diaphragm of the influence of tightening of pressure receiving flanges, etc. A sensor block 1, a...  
JP10208170
To provide an autonomous guard/home state of things information system which is constituted of a few sensors and which can securely and inexpensively detect the existence of a man, the opening/closing of a door or the movements of a man ...  
JP10206260
To discriminate the front and the rear of a work can be discriminated surely, easily and at low costs by a method wherein a suction pressure is detected when a suction pad in which a suction hole is opened and bored in the central part o...  
JP10185730
To provide a pressure sensor for eliminating the need for providing a seal diaphragm especially, and a differential pressure transmitter that has the pressure sensor and a simple structure, can be miniaturized, and has a low cost. A pres...  
JP10185729
To provide a capacitive pressure sensor for suppressing the intrusion of dust that is generated when the sensor is manufactured into the sensor. In a capacitive pressure sensor where a silicon substrate 1 with a diaphragm and a glass sub...  
JP10185728
To provide the structure of a differential pressure sensor that is suited for obtaining an accurate pressure signal and can be manufactured easily and a method for assembling the sensor. A semiconductor chip 1 with a pressure-sensitive p...  
JP10170378
To facilitate the work for leading in a cable by partitioning the inside of an explosion-proof container into first and second chambers with a partition wall, connecting the first chamber with the outside of a terminal box through a firs...  
JP2793796
PURPOSE: To facilitate assembling and disassembling by reducing the number of part items in a differential pressure sensor unit. CONSTITUTION: In a differential pressure sensor unit constituted so as to detect differential pressure betwe...  
JP10142251
To provide the certainty of a fire alarm by certainly prevent erroneous information at the time of momentary water passing in a flowing water control valve in a working valve type flowing water detecting device. The outside of a valve ma...  
JP10142091
To measure a differential pressure accurately by installing a strain gauge at both of a thin film and a retaining body for measurement and eliminating a measurement error due to a pressure applied to the retaining body. A block 2 is inst...  
JP10142090
To set the direction of a pressure port without being limited by the direction of a pressure introduction part and to miniaturize an entire pressure gauge by retaining a pressure sensor with the pressure introduction part with a pluralit...  
JP10132691
To make it possible to hold two kinds of corrosion resistances with one kind of diaphragm by arranging a hydrogen permeation preventing film in an intermediate layer, and connecting stainless to one face of the preventing film and a nick...  
JP10132668
To prevent a sensor from receiving physical damage easily when an excessive outer force is applied. A doughnut shaped groove is dug on the lower surface of a first substrate 100 and a flexible part is formed. An annular pedestal 220 is j...  
JP10132690
To provide a water and temperature sensor that eliminates trouble due to the abnormal heating of a heater being generated when a sensor for measuring water temperature or a heater is exposed to the air, that cannot be corroded easily, do...  
JP10132685
To improve durability against expansion and shrinkage of a component in a pressure sensor where a semiconductor pressure sensor body is mounted to a circuit substrate in a body case. A connection terminal 11 that projects from a package ...  
JP2784117
PURPOSE: To prevent the formation of a thin part in a coating material so as to improve the hydrogen gas transmission preventing effect of the coating material by making the protruded dimension of a sealed diaphragm fixing section smalle...  
JP10132689
To reduce a temperature difference on both sides and measure high precision by integrally forming respective diaphragm replacers on the high pressure side and low pressure side. A high pressure side seal diaphragm 4 and a low pressure si...  
JP10122998
To prevent a bed material from being penetrated into the differential pressure detecting hole of a fluidized bed differential pressure detecting device by providing a separation box for separating the particle of the bed material from a ...  
JP10122994
To improve the corrosion resistance, weldability and output characteristic by providing a ring-like thick wall part to be welded and fixed to a body on the peripheral part of a metal seal diaphragm. Ring-like thick wall parts 31, 32 are ...  
JP10122995
To prevent the hydrogen permeation and storage of a seal diaphragm and improve the corrosion resistance, adhesion and wear resistance by providing, on the surface of a seal diaphragm, a coating film body of a specified material for prote...  
JP10114581
To improve strength and corrosion resistance by disposing a joining material consisting of specified α-aluminum oxide powder, inorg. oxide powder as a sintering aid and an org. vehicle between two members and heating them. A pasty, shee...  
JP10090099
To provide a highly reliable and accurate pressure sensor in which a sensor chip is protected against damage and whose characteristics are prevented from deteriorating. When the upper and lower cases 11, 12 of the sensor 10 are jointed a...  
JP10090098
To provide an evaluation unit for differential pressure sensor producing an output signal corresponding to a pressure difference corrected for rated pressure error. Inner temperature Ti corresponds to the sum of reciprocal-of capacitance...  
JP2765333
PURPOSE: To prevent permeation of hydrogen from a measurement fluid side to a seal diaphragm in a pressure measuring device with a seal diaphragm. CONSTITUTION: A hydrogen permeation prevention metal layer 1, an intermediate metal layer ...  
JP10068666
To provide a differential pressure detector capable of overcoming many errors accompanying the conventional rear surface etching process to be easily regulated and a method for manufacturing the same. In a pressure detecting chip 14 havi...  
JP10062286
To stabilize the characteristic of a sensor by providing a protruded part either at an electrode drawing part on a first substrate or on a second substrate to make the width of a gap near the electrode drawing part less than that of the ...  
JP2749774
PURPOSE: To provide a liquid pressure measuring sensor with its minimized pressure error, high reliability, high rigidity, high durability, and excellent air tightness. CONSTITUTION: A liquid pressure measuring sensor comprises a diaphra...  
JP10048085
To stabilize differential pressure measurement in a high temperature plant. A cavity 7 is formed inside the boss of a flange 5, in which a bellows 8 and a coil spring 9 are provided. The spring 9 made of shape memory alloy with expansion...  
JP10038726
To obtain a semiconductor differential pressure detector excellent in the linearity of pressure and output even in low pressure region with high productivity by forming a reinforcing layer covering a region where a strain gauge is formed...  
JP10019708
To improve static pressure span characteristics by reducing an area of a conductive film coated to a surface opposite to a diaphragm in a fixed electrode facing close to the diaphragm. A fixed electrode comprises an insulating plate 1 ha...  
JP10019707
To improve manipulation safety by providing a projecting part project ing from a pressure-receiving flange and narrowing a central part of a recess, and reducing a difference of sectional areas between a central part of a flange chamber ...  
JP10019709
To correctly detect a pressure by sealing the interior of a cavity part by a film and transmitting the pressure via the film without allowing an atmospheric pressure to enter the cavity part directly. The sensor has a first substrate 12 ...  
JP10009986
To provide a capacitance-type pressure sensor which prevents a characteristic from being degraded due to a warpage generated at a silicon substrate and an insulating substrate by a method in which the silicon substrate, for warpage offse...  
JP10009987
To provide an electrostatic capacity type pressure.difference pressure transmitter having a structure capable of reducing the asymmetry of temp. characteristics without complicating a sensor structure and capable of keeping resolving pow...  
JP10002770
To realize an integrated pressure-difference flowmeter, having simple structure in which the measurement accuracy can be enhanced by suppressing the effect of pulsating component of a fluid to be measured. A fluid to be measured flows fr...  
JP10002823
To reduce the load on a host device by determining the variation of a detected differential pressure signal from the differential pressure signal of one sampling period before, performing a primary delay operation to the variation, and o...  
JP09318481
To enable measurement with high accuracy even by a diaphragm with small pore size. Each of reference static pressure, reference differential pressure, and reference temperature is impressed on the main body of detection by a few points i...  

Matches 701 - 750 out of 1,305