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Patent Searching and Data


Matches 851 - 900 out of 3,122

Document Document Title
JP4291779B2  
JP2009137455A
To provide a window for a riding movable body, high in visibility, in electromagnetic wave shielding performance, and in breakage resistance.The window is provided with a mesh layer 12 in which an arcuate conductive wire material 15 with...  
JP4284267B2  
JP2009135587A
To provide an electronic device which can be downsized.The electronic device is provided with a housing 20 having a bottom wall 19A and a side wall 19B rising from an circumference of the bottom wall 19A, an antenna 17 formed on inner su...  
JP4279393B2  
JP4281162B2  
JP2009111954A
To prevent influence between a plurality of antennas when a loop coil antenna for a noncontact type IC card function is arranged close to another antenna such as an antenna for radio communication such as a portable telephone or a whip a...  
JP2009109333A
To provide an antenna apparatus for reducing a radar reflection area so as to prevent its location from being sensed by the other apparatus if a to-be-tracked target exists at a remote location.The antenna apparatus (113) includes an ant...  
JP4265009B2  
JP4257951B2  
JP2009094502A
To provide an electromagnetic wave absorber that has high electromagnetic wave absorbing characteristics with respect to a broadband electromagnetic wave including a low-frequency electromagnetic wave, and has achieved a thinner film and...  
JP2009076802A
To provide a radio wave absorber which can be thinned, while the thickness of a 1/4-wavelength radio-wave absorber has conventionally been regarded as capable of being determined uniquely.The radio wave absorber has a reflecting film 1, ...  
JP2009071604A
To make the whole antenna module thinner and prevent unevenness of transmission performance.An antenna module 10 includes a loop-shaped antenna coil 14 formed on an insulating substrate 12, a ferrite core 18 formed on an upper face side ...  
JP2009063427A
To provide a radio wave anechoic box capable of measuring the characteristics of an object to be measured for radiating electromagnetic waves at a plurality of frequency bands.A cylindrical member 7 capable of moving axially is provided ...  
JP2009059972A
To provide a radio wave absorber for absorbing an electromagnetic wave in a frequency band of 400 to 1,000 MHz, which is lightweight and thin; a radio wave absorbing panel structure using the same; and a radio communication improvement s...  
JP4241524B2  
JP2009055613A
To provide a compound element for a radio relay device antenna and a dipole array circular polarized antenna using it.The compound element for the radio relay device antenna includes: a pair of parallel parts vertically arranged apart in...  
JP2009049263A
To provide a noise suppression film high in noise suppression effect, thin, light weighted, and excellent in flexibility, and also to provide a method for manufacturing the same.A filler is made by blending a conductive filler and an ins...  
JP2009038785A
To provide a noise suppression element which is efficiently coupled with a magnetic field to absorb and attenuate an induced current, for a nearby field and to provide an electromagnetic field absorbing and attenuating element which enha...  
JP4224703B2  
JP2009027450A
To provide a high impedance substrate which has a large ratio band in a low frequency band, and at the same time, is thin enough to be mountable on an electronic device.The high impedance substrate has: a metal plate (1) as a ground plan...  
JP2009027126A
To provide a transparent electromagnetic shielding panel for shielding any unnecessary electromagnetic wave from the outside of a building bringing about any adverse effect due to malfunction or electromagnetic interference, and for abso...  
JPWO2009016923A
Wave absorber 3 is provided in the inside of metal case 2, and electric wave anechoic box 1 is formed. It estranges in the direction of an axis and forms device under test 5 and antenna 6 for measurement in the inside of electric wave an...  
JP2009021856A
To suppress interference with other internal antenna, when a rod-type antenna of a radio device is stored in a case.An antenna system 10 is equipped with the rod type antenna 13 which is formed into a rod shape and stored in the case of ...  
JP2009017142A
To provide a noise suppression resin composite material of light weight having less dependence on thickness noise suppression effects.The noise suppression resin composite material uses dielectric characteristics and satisfies the formul...  
JP4206612B2  
JP4208979B2  
JP2008310572A
To provide an antenna for radio tag communication which is excellent in heat dissipation property and does not occur any radio interference.This antenna for radio tag communication is provided with a heat dissipation case formed of an el...  
JP4201635B2  
JPWO2006112468A1
電磁波対策部品18は、それが付設される電 子機器10の送信帯周波数における透磁率の 実数成分μ′が10以上、tanδ(=μ″/ μ′)が0.1以下で、かつ強磁性共鳴...  
JP2008300964A
To obtain an antenna system capable of preventing a current distribution on a rear mirror plane from being disordered and suppressing deformation of a radiation pattern and a decrease in gain without spoiling the strength of a ring-shape...  
JP2008293509A
To limit erroneous communication between adjacent lanes in a communication system between a road and a vehicle.This radio wave leakage limiting wall 11 is arranged between a first lane 1a provided with a road side antenna 2 for communica...  
JP2008544518A
The present invention more about a multilayer thin electromagnetic-wave-absorption film in details, It is the structure where lamination arrangement of the conductive macromolecule layer and the magnetic metal complex layer which have fi...  
JP3146497U
[Subject] A mobile phone is put into a packaging bag, an electric wave is intercepted completely, and a packaging bag aiming at preventing communication with the exterior is provided. [Means for Solution] A mobile phone is put into a pac...  
JP2008282862A
To provide a composition for absorbing radio wave absorber suitable for absorbing radio waves in the vicinity of 1 GHz and in the higher GHz bands which can reduce the weight and thickness, to provide the radio wave absorber produced by ...  
JP4181172B2
A system includes a device for focusing electromagnetic waves, and a multiple-beam antenna. The antenna includes: a photonic bandgap material ( 20 ) having at least one band gap, at least one periodicity defect ( 36 ) of the photonic ban...  
JP2008270938A
To provide a watertight antenna system which has such directivity that while watertightness is held, gravel flowing on a riverbed can be detected, and is easy to handle.The watertight antenna system comprises a nonmetallic pipe which has...  
JP2008252046A
To provide a frequency-selective type electromagnetic wave shielding layer which is set on a window of a house, is used for a transparent partition in a room, excels in viewability, can be made thin, and has a broad resonance frequency.T...  
JP2008243906A
To easily improve shielding performance when shielding an electromagnetic wave of a specified frequency.On one flat surface of a basic material 11, a plurality of conductive loop forms 1 are formed. The conductive loop forms 1 are regula...  
JP2008245132A
To enhance isolation between antenna elements when one radio device includes two or more antenna elements.A radio device 1 includes a circuit board 11 built in a case 10. A first feeding point 13 and a second feeding point 14 are provide...  
JP4162859B2
A structure which exhibits magnetic properties when it receives electromagnetic radiation is formed from an array of capacitive elements each of which is smaller, and preferably much smaller, than the wavelength of the radiation. Each ca...  
JP2008232791A
To provide a positioning device reduced in size and cost, while enhancing positioning precision of a position.This positioning device 20 receives a radio wave from a GPS satellite by an antenna part 30, and positions a position by a GPS ...  
JP2008211422A
To provide a noise suppression sheet evaluation device and a noise suppression sheet evaluation method capable of evaluating a conducted noise suppression effect and radiated noise suppression effect in an identical device and evaluating...  
JPWO2006103761A1
信号処理回路基板2は、レーダー1で受信し た電波を閾値を用いて検出処理する信号処理 回路を搭載する。筐体3は、レーダー1に対 応する位置に電気的開口33を有し、レ...  
JP2008205447A
To provide a radio wave absorber which has high radio wave absorbing performance regardless of the incident direction of radio wave, so that it can preferably applied to radio communication system having high flexibility in a service are...  
JP4144754B2  
JP2008199309A
To improve the radiation efficiency of a built-in antenna which may have a complex shape in a small wireless installation.The wireless installation 2 has a substrate 27 built in a casing which is comprised by engaging a first member 25 a...  
JP2008530937A
Mobile communications apparatus (1, 10) is equipped with the cover element which gives electromagnetic cover or attenuation between the first domain (A) in the inside and/or the exterior of a communication facility (1, 10), and the secon...  
JP2008177242A
To provide an electric wave absorber whose strength is improved sufficiently.The electric wave absorber 10 has an absorbing characteristic larger than 18 dB and a matching thickness smaller than 8 mm in a frequency band of 30 to 400 MHz,...  
JPWO2005105398A1
塗布型磁性木材、含浸型磁性木材、粉体型磁 性木材、積層型磁性木材のいずれかからなり 、木質材の表面構造又は内部構造を変えるこ とによって磁気吸着機能と電波吸収機能...  

Matches 851 - 900 out of 3,122