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Patent Searching and Data


Matches 901 - 950 out of 1,626

Document Document Title
JP2001044750
To provide a transparent radio wave absorbing body that realizes reduction in weight and cost and flexibly copes with a change in an absorbed frequency. The transparent radio wave absorbing body is provided with a layered body 16 consist...  
JP2001044747
To keep a communication distance constant without being affected presence/absence of a reflected wave from a metal placed close to an installed place of a loop antenna and to adjust the communication distance within a predetermined range...  
JP2001044748
To provide a radio wave object simulator where there is no error between an object echo radiation position obtained by calculation and an actual radio wave incoming direction when viewed from a test piece. The radio wave object simulator...  
JP2001044749
To provide a device for suppressing an electromagnetic wave noise that can easily and effectively suppress the electromagnetic wave noise and to provide a method for suppressing an electromagnetic wave noise. The electromagnetic wave noi...  
JP2001044687
To obtain a non-halogen, highly fire retardant, and highly flexible wave absorber which can effectively absorb submillimeter to millimeter radio waves. A wave absorber for submillimeter to millimeter radio waves uses the set-up material ...  
JP2001036318
To reduce electromagnetic radiation intensity of a portable telephone in a direction of a user head part and to reduce damages to the head part by having an electromagnetic wave absorption part absorb the electromagnetic wave in the dire...  
JP2001032150
To obtain a material for always wearable clothes excellent in touch feeling without causing dermatopathy (allergy) or the like, wearable as underwear and excellent in electromagnetic wave shielding performances. This electromagnetic wave...  
JP2001028493
To increase bending strength and the transverse rupture strength resistance of Young's modulus, and to improve electromagnetic wave absorption performance by composing an electromagnetic wave absorber by the matrix phase of calcium silic...  
JP2001028491
To provide an electromagnetic wave absorbing body comprising the powder of soft magnetic material dispersed in a polymer with high performance even at a high temperature for absorbing electromagnetic wave at 120-130°C being kept by at l...  
JP2001028492
To provide an electromagnetic wave absorbing material, together with its manufacturing method, which comprises an electromagnetic wave absorbing performance with less weight and high manufacturing efficiency.Water is added to the powder ...  
JP2001028494
To provide an electromagnetic wave absorber having essential performances therefor, the fire-resistance of V0 level for UL94 fire-resistance standard, excellent stability in dimension against temperature change, and no substantial shift ...  
JP2001024425
To surely operate the reading of an IC card within the detection range of a reading device, and also reduce the leakage of unnecessary electromagnetic waves to the outside of the detection range in a non-contact IC card system using a lo...  
JP2001024381
To provide an electronic wave absorbing body for improving electromagnetic wave absorbing performance and at the same time for reducing cost.A plurality of electronic wave absorbing plate bodies 1 in a triangular plate shape are mounted ...  
JP2001021663
To provide a radar device for underground prospecting that can expand a detection range by using a small number of antennas.The radar device for underground prospecting is installed along with an underground excavator with an excavation ...  
JP2001016020
To readily make the structure small-sized and low-priced, to transmit a high-frequency signal and to prevent unwanted radiation of the high-frequency signal, and to electrically connect an antenna and a printed board together.Signal patt...  
JP2001015980
To improve the absorption characteristic of an electromagnetic-wave absorber over a wide frequency band by forming the absorber, by laminating a plurality of electromagnetic-wave absorbing layers having different frequency absorption cha...  
JP2001015981
To obtain a method for manufacturing a cured wave absorber which is constituted by laminating a plurality of layers composed of alternately laminated ferrite-based magnetic layers and carbon-based dielectric layers upon a carbon layer, w...  
JP2001007634
To prevent a machine from becoming incapable of operation and abnormal in its control system due to radio wave interference by adhering a film sheet, having a radio wave absorbing characteristic or a radio wave reflection characteristic ...  
JP2001007623
To provide a built-in antenna system for a mobile phone that copes with a dual band with a wide frequency bandwidth and a wide directivity characteristic and has a small occupied capacity and stable characteristic and shape.The antenna o...  
JP2001007586
To enhance electromagnetic wave shielding effect with as higher electromagnetic wave shielding effect at broad frequency bands, provide an electromagnetic wave absorption effect and enhance near-net shape property by forming from a casti...  
JP2001006872
To provide a method for preventing the variation of the quality of a member by further improving a method for heating the member formed of a microwave absorptive plastic.This heating device is used for heating members 8, 8' formed of a m...  
JP2001007635
To provide a method and a device for correcting a radio wave absorbing body with which the radio wave absorbing performance in matching with a design frequency can be set with high accuracy.A radio wave, swept from a signal generator 2 w...  
JP2001003264
To obtain a magnetic wave-insulating three-dimensional structural body having a large degree of freedom in designing and applicable to a complicated steric shape by using a metal-coated yarn or an electroconductive fiber yarn in at least...  
JP2000357934
To provide an energy absorbing device for electromagnetic interference(EMI) in an electric circuit of the intake gas flow meter of an internal combustion engine, having at least one electric element showing an antenna characteristics in ...  
JP2000353610
To provide a method by which a radio wave absorber having a thin three-dimensional shape and nearly fixed magnetic permeability can be manufactured at a low cost.In a method for manufacturing a radio wave absorber, a molded body is forme...  
JP2000351170
To provide a transparent conductive laminate excellent in transparency and conductivity and hard to undergo deterioration in antistatic capacity, electromagnetic wave shielding capacity and electric heating capacity even under a high tem...  
JP2000349542
To obtain an electromagnetic filter that shields only an electromagnetic wave with a specific frequency received through a wall face and a window glass plate or the like of a building or a vehicle or the like.In the electromagnetic wave ...  
JP2000349539
To secure mechanical strength and to satisfy radio wave absorbing characteristic by forming a part of plural layers of the radio wave absorber of a flat plate type as a low ratio dielectric constant material layer and arranging this betw...  
JP2000349490
To obtain a material or body which has an excellent electromagnetic wave absorbing effect even in the high frequency band not lower than a specific frequency, by making the electromagnetic wave absorbing material include therein a waste ...  
JP2000349541
To provide an electromagnetic filter that shields an electromagnetic wave with a specific frequency received through a wall face and a window glass plate or the like of a building or a vehicle or the like independently of a plane of pola...  
JP2000340982
To practically suppress an electromagnetic wave resonance in an high electromagnetic wave shield chamber which is applicable even if a strong magnetic field is present, by providing a film or board wherein a material having a magnetic lo...  
JP2000341029
To provide a receiver that is suitably applied to a GPS receiver, effectively suppresses the effect of an electromagnetic wave noise with a simple configuration, attains miniaturization much more and relieves trouble and labor of manufac...  
JP2000341032
To make an electronic component thinner and shorter and to make wiring finer, and to lower the price, to save resources and to clear environmental problems at the same time by forming a conductive pattern on a base having many pores and ...  
JP2000341031
To provide a three-dimensional periodic structure that can easily be manufactured at a low cost and controls an electromagnetic wave with a desired wavelength and to provide its manufacturing method.A two-dimensional basic structure cons...  
JP2000341030
To reduce a grating lobe of a waveguide array antenna system.Placing many slot antenna elements in a waveguide forms a transmission or reception waveguide array antenna system. Radio wave reflectors 103 two of which have each antenna ele...  
JP2000332534
To provide the construction machine, equipped with an economical radio device which can securely transmit video signals from a construction machine moving frequently for operation and a construction machine operating in a slanting place ...  
JP2000323920
To obtain a radio wave shield body which reflects a radio wave of specific wavelength when it is made incident from one side, absorbs it when it is made incident from the other side, and transmits radio waves other than the radio wave of...  
JP2000315906
To provide an absorbing/losing/shielding body for an incoherent wave to exclude an electromagnetic wave that is harmful to human bodies and electric/ electronic circuits. The absorbing/losing/shielding body for an incoherent wave is form...  
JP2000311821
To obtain an electromagnetic wave attenuating sheet, which absorbs and attenuates electromagnetic waves generated from electromagnetic wave sources such as circuits in electronics and can be mounted, irrespective of the shape of circuits...  
JP2000307336
To improve mutual radio wave interference between fixed stations without devising a radar itself by installing a disc on a radio wave propagation path while adhering a radio wave absorber having a diameter almost corresponding to that of...  
JP2000307286
To reduce an irregularity in conductivity and obtain a stable value in a radio wave absorbing body by forming a carbon layer on the surface of a holder containing a substance having layer crystal structure by weight of a specified range....  
JP2000307496
To install a relay antenna at a position accurately opposite hereto and to install the antenna while avoiding an obstacle distorting radio wave transmission by providing a means that detects the strength of a radio wave received by an an...  
JP2000299587
To absorb radio wave over a wide band from sub-millimetric wave band to millimetric wave band by specifying the thickness of a dielectric layer and return loss. The radio wave absorber has a conductive layer and a dielectric layer wherei...  
JP2000299591
To provide a radio wave absorbing material, exhibiting high heat resistance and flame resistance which is lightweight and can be easily processed and formed. A cloth is manufactured by weaving 1% of carbon fibers in weight into a commerc...  
JP2000299590
To provide a radio wave absorbing material, exhibiting high heat resistance and flame resistance which is lightweight and can be easily processed and formed. A silica glass fiber cloth is manufactured by treating a commercially available...  
JP2000292470
To accurately measure antenna's reception capability of various communication devices with simple measuring equipment for a reduced measurement cost, and to accurately measure the reception performance of an antenna itself separately fro...  
JP2000293655
To surely identify an article by suppressing the absorption of radio waves transmitted from a transmission coil for making an operating distance relatively long, and preventing the deterioration of the L values of reception and transmiss...  
JP2000275289
To restrain the reduction of the ratio of signal to noise(S/N) due to the reflecting wave from the inner face of a vacuum vessel by covering the inner face of the vacuum vessel in which a microwave detecting element is arranged with a re...  
JP2000278035
To provide an antenna system that can suppress an undesired transmission wave included in an electromagnetic wave emitted from a primary horn or a received disturbing wave in a radio wave received via a main reflecting mirror. This anten...  
JP2000278032
To provide an electromagnetic wave absorbing sheet at a low cost with excellent electromagnetic wave absorbing capability of 10 dB (70% attenuation) or over at a frequency band including frequencies of mainly 3 GHz (desirably 1 GHz) or o...  

Matches 901 - 950 out of 1,626