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Patent Searching and Data


Matches 501 - 550 out of 1,636

Document Document Title
JP3894688
To provide communication equipment improved in the quality of communication which is for executing power supply to a communication party and communication with the communication party by electromagnetic induction in a non-contact state. ...  
JP3892154
To provide a plane antenna device more hardly being affected by multipath by sufficiently suppressing sensitivity to incident waves from the rear face side of a ground plane. A ground plane 5 is provided around the plane antenna 10 and a...  
JP2006335537
To provide a conveyed object control device preventing surrounding radio waves from interfering with a scanner reading information on an electronic tag attached to a conveyed object.This conveyed object control device is provided with th...  
JP2006339592
To provide a low-cost electromagnetic wave absorbing building material in which electromagnetic wave absorbing performance for preventing communication failure is exhibited in a plurality of specified frequency bands by using an existing...  
JP2006340394
To provide a mobile communication terminal in which communication performance can be improved between a non-contact coil antenna for IC card interface and a non-contact coil antenna for reader/writer, and entire small-sizing of the whole...  
JP2006336416
To provide an electromagnetic wave absorbing building material made of a conventional plaster building material, displaying stable electromagnetic wave absorption performance in a plurality of frequency bands, and manufactured at lower c...  
JP2006333026
To provide an antenna assembly in which an RFID tag can irradiate fully operable radio waves, while enhancing success probability of communication with the RFID tag, without affecting the surrounding system.As shown on Fig. 2(A), a cargo...  
JP2006319468
To prevent a measurement error from occurring by suppressing the reflection phenomenon of an electromagnetic wave.A radio wave absorber 110 covers the pipe portion 42 and the box portion 43 of a probe main body 40. The electromagnetic wa...  
JP2006314016
To provide a radio wave absorbing structural body, having a simple structure and capable of adjusting the range of radio waves that are radiated from an antenna.The radio wave absorbing structural body is provided with the antenna 1 for ...  
JP3877196
To provide an antenna which is attached onto a wall surface, a window, etc., of a building, a vehicle, etc., and has a function to shield or enhance an electromagnetic wave of a specific frequency regardless of the polarized surface of t...  
JP2006310353
To provide a durable radio wave absorber where the surface resistivity of a resistive film is nearly fixed for a long term, and initially satisfactory radio wave absorption performance can be maintained for a long term.In the radio wave ...  
JP2006303555
To provide a radio wave absorber which can be fixed to a concrete wall face in order to absorb unnecessary radio waves generated around an electronic toll collection system (ETC) on a highway with high attenuation even at a narrow incide...  
JP2006304080
To provide an electronic circuit capable of improving an antenna Q value by magnetically separating an antenna and a metal case body for the purpose of installing the antenna inside the metal case body, and to provide an electronic circu...  
JP2006294718
To provide a radio wave absorber which shows a superior absorption property with respect to both TE waves and TM waves even if they are incident aslant, and also to provide a radio frequency anechoic chamber using the same.The radio wave...  
JP3869985
To develop an absorber capable of enhancing uniformity of adherence of carbon and upgrading radio wave absorbing characteristics by utilizing a silica alumina fiber and a method for manufacturing it. The method for manufacturing a radio ...  
JP3869147
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...  
JP2006270350
To enable a reader to accurately specify the target ID transmitted from an ID transmission means provided to an inspection target.The shield device is provided with a shield material 5a and a device ID transmission means 6 formed to the ...  
JP2006257762
To provide a radio wave and sound absorbing panel with high performance by making compatible sound absorbing performance with radio wave absorbing performance.This radio wave and sound absorbing panel is formed in a laminated structure c...  
JP2006246034
To provide an antenna hoisting/lowering device capable of alleviating reflection to the attaching side of an antenna for measuring an electromagnetic wave from a unit under test at the side of a support, and stabilizing the attaching pos...  
JP2006245472
To provide an electromagnetic wave absorber which is excellent in an electromagnetic absorption property, is light in weight, and is good in productivity.The electromagnetic wave absorber contains a boron solid-solution carbon black and ...  
JP2006245166
To provide a radio wave absorber used for shielding or absorbing electromagnetic waves, especially at a frequency band of around 5.8 GHz.Flat magnetic metal powder of 70-100 pts.wt. is blended with respect to resin binder of 100 pts.wt. ...  
JP3849786
To provide an electromagnetic wave absorber having excellent electromagnetic wave absorption characteristics. The electromagnetic wave absorber comprises boron carbide powder whose conductivity is not less than 5×10-6(S/cm). The electro...  
JP2006233457
To provide a radio shielding body which can selectively shield two kinds of radio waves with different frequencies by a high shield factor.A plurality of first antennas 4 for each reflecting the radio wave with first frequencies, and a p...  
JP2006237345
To provide a radio wave absorber which has a reflection attenuation capability enough to prevent a communication fault caused by electromagnetic wave reflection or the like, can be made thin and lightweight, and has a wide-band attenuati...  
JP3844317
To realize improvement in the magnetic efficiency, by joining a pair of half split cores made of soft magnetic powder and a specified organic binder, and causing the joined pair of cores to surround the outer peripheral portion of a cabl...  
JP3839971
To prevent mechanical properties from being thermally affected greatly and to improve heat resistance, aging resistance, and oil resistance properties by including a soft magnetic material powder and a bonding agent and further including...  
JP2006211004
To provide an incombustible and translucent radio wave absorber exhibiting radio wave absorption characteristics of 15 dB or above (more preferably 20 dB or above) for radio waves having frequencies of 2.45 GHz and 5.2 GHz for indoor wir...  
JP2006210703
To provide a device for reducing a disturbance electromagnetic wave wherein reduction effect of jamming electromagnetic wave can be obtained in a wide range.The device is constituted of a conductive plate 1 constituted of a conductive ma...  
JP2006192875
To provide an electric wave absorber which can be manufactured without positive addition of a carbon source and to provide its manufacturing method.The electric wave absorber is obtained by laminating a dielectric layer made of a ceramic...  
JP2006186725
To provide a transparent electromagnetic wave absorbing board with respect to electromagnetic wave within the frequency range of 1 to 10 GHz, which can be used for a partition for a room or road, etc., or for the window of a building, et...  
JP2006184130
To prevent multiple reflections from occurring, when using an in-car radar device which has the need to detect an object in a short-distance area ranging from several tens of centimeters to several tens of meters, wherein the refected wa...  
JP3823942
To obtain a compact antenna assembly which prevents reflection from the end of a helical antenna element to provide a desired radiation pattern. The antenna assembly comprises a helical antenna for radiating circularly polarized radio wa...  
JP3823293
To provide a broadband antenna, having a tapered slot antenna structure capable of easily changing the polarized wave faces and making the body small, when it is formed in an array form. Each tapered part 6 of a plurality of tapered slot...  
JP2006179901
To provide an electromagnetic wave absorbing sheet having excellent permeability at high frequencies.An electromagnetic wave absorbing sheet 1 comprises a soft magnetic layer 10 having an insulating film on its surface and formed so as t...  
JP2006179671
To provide a radio wave absorber which has enough reflection damping ability for preventing communication jamming such as by reflection of an electromagnetic wave, can be made thin and lightweight, and has a damping characteristic in a w...  
JP2006174230
To provide portable electronic equipment in which electromagnetic waves for transmitting and receiving information have a less effect on a human body.There is provided the portable electronic equipment for transmitting and receiving info...  
JP2006157705
To provide an electromagnetic wave absorbing member which can be mounted simply to a cellular phone set and which will not hinder the operability of the cellular phone set, even after being mounted.The electromagnetic wave absorbing memb...  
JP2006156543
To provide a method for manufacturing nano complex powder for efficiently absorbing electromagnetic waves at a GHz band in which a utilization range tends to expand following the development of communication equipment by a magnetic mediu...  
JP3814183
To obtain an electromagnetic wave absorbing slope that can produce an electromagnetic wave reflection prevention function. In an electromagnetic wave absorbing and heat generating slope 10, a three-dimensional net 12 in a predetermined t...  
JP3812977
To provide a thin inhibitor for electromagnetic interference which can effectively inhibit electromagnetic interference in the microwave band. As the material of an inhibitor for electromagnetic interference, powder 2 of a semi-hard magn...  
JP2006140352
To provide an electromagnetic wave absorber capable of absorbing the electromagnetic waves of a more extensive wavelength, having little reflection of incident electromagnetic waves and low dependability on the wavelength of electromagne...  
JP2006140298
To provide an electric wave absorber which shows better electric wave absorbing characteristics than a conventional resonant single layer sheet in broader bands, and is remarkably thinner than a conventional pyramidal electric wave absor...  
JP2006134907
To provide a radio wave absorber material which can deal with various GHz band frequencies only by changing the thickness of a sheet without changing a magnetic powder to be used, and to provide a radio wave absorber in which its materia...  
JP2006135031
To provide a transparent electromagnetic wave absorbing plate for the electromagnetic waves in the frequency range of 1-10 GHz used for portable telephones, wireless LANs, ETCs, etc.The electromagnetic wave absorbing plate is composed of...  
JP2006128664
To provide an electromagnetic wave absorber exhibiting a high peak value of electromagnetic wave absorption and a small shift of the frequency at which the absorption attains a peak value according to the polarization direction of the el...  
JP2006128312
To provide a thin, large and inexpensive electromagnetic wave absorber that is effective at an arbitrary incident angle.The electromagnetic wave absorber comprises a reflector layer 10 which is the aggregation of conductive materials, a ...  
JP2006115330
To stably read information even when a plurality of readers are adjacently arranged, when an RF-ID is introduced and a unique ID is managed.An antenna installation tool 40 has a casing 43 for housing a flat antenna 35 having a radio wave...  
JP2006097304
To provide an excellent radio wave absorbing panel which exerts excellent performance of absorbing radio waves from TV radio waves to radio waves for communication systems, is free from degradation of radio wave absorbency, lightweight, ...  
JP2006093416
To provide an electromagnetic wave noise suppression sheet which has two electromagnetic wave noise suppressing functions including a conduction noise suppressing function and a radiation noise suppressing function and can be made thin a...  
JP2006093413
To provide an EMC countermeasure member having both a conduction noise suppressing function and a radiation noise suppressing function, and also to provide an EMC countermeasure method using the same.The EMC countermeasure member 1 conta...  

Matches 501 - 550 out of 1,636