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JP2001060819 |
To provide a spiral antenna capable of suppressing interconnection between a plurality of spiral elements in the spiral antenna having the plurality of spiral elements on a dielectric substrate. A plurality of spiral elements 1 and 2 whi...
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JP2001057496 |
To improve electromagnetic wave absorption characteristics, and to improve heat resistance at low costs while providing sufficient mechanical strength by providing heat-resistant resin at one or entire part of the surface of a composite ...
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JP2001053487 |
To improve the radio wave absorbing ability of a wave absorber by making the absorber have high magnetic permeability in a high-frequency band by constituting the absorber of a mixed body of magnetic particles containing iron nitride and...
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JP2001053486 |
To provide an electromagnetic wave absorption method for further improving electromagnetic wave absorption efficiency, by using a method for covering an electromagnetic wave generating body with a ferromagnetic material. A ferromagnetic ...
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JP2001053538 |
To improve a radiation pattern using a soft boundary wall both of the electric field reflection coefficient and the magnetic field reflection coefficient of which are a specific value as a reflection board so as to reduce current flowing...
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JP2001053532 |
To realize the ideal shape of a radiating pattern by arranging a shield plate obtained by laminating a radio wave absorbing layer on the upper surface of a metallic plate between a four-wire fractional turn helical antenna element and a ...
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JP2001053484 |
To prevent the fluctuation of pictures and malfunctions caused by the reflection of radio waves on the internal wall surface of an office and radio waves intruded into the office from the outside by sequentially providing dielectrics hav...
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JP2001053485 |
To enable an electromagnetic wave absorbing sheet to exhibit a sufficient noise reducing effect even when the thickness of the sheet is reduced by constituting the sheet by alternately laminating pluralities of magnetic material layers o...
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JP2001047549 |
To provide a transparent conductive film of superior durability and electromagnetic wave shielding properties. A transparent conductive film is formed of a high reflectance transparent thin layer B composed of a metal oxide or a metal su...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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 ...
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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 ...
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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...
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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 ...
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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 ...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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 ...
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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...
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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 ...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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....
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