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Patent Searching and Data


Matches 801 - 850 out of 2,847

Document Document Title
JP2006135031A
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...  
JP2006128664A
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...  
JP2006128312A
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 ...  
JP2006513795A  
JP2006115330A
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...  
JP2006097304A
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, ...  
JP2006093416A
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...  
JP2006093413A
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...  
JP3786497B2
To arbitrarily set the directivity of a radio wave in accordance with a purpose by providing a non-conductive radio radiation window becoming a lens for an area facing the antenna element of an air-tight sealing means. The antenna elemen...  
JP3783728B2
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 w...  
JP2006081041A
To provide the joining structure of a radio wave reflector in which the number of parts is small, assembling workability is satisfactory, rigidity against wind pressure and anti-earthquake performance are excellent, side lobe suppression...  
JP2006080414A
To obtain a radio wave absorber having improved radio wave absorption characteristics at a 30 MHz to 50 GHz band.The radio wave absorber is formed by mixing a magnetic body powder 4, a mixture mainly composed of conductive fiber-like pow...  
JP2006073924A
To provide a wave absorber which has reflective attenuation capability enough to prevent communication failure caused by a reflection of electromagnetic wave or the like, is reduced in thickness and weight, and has wideband damping chara...  
JP3772187B2
To provide a reliable, thin and lightweight electromagnetic wave absorber exhibiting improved absorbing performance capable of absorbing electromagnetic waves over an extremely wide range. A porous substrate 3 has a number of through-hol...  
JP3772577B2
To widen the band of the microstrip spiral antenna and to prevent its characteristics from degrading by providing a radio wave absorber at the opening of a cavity bottom part that a microstrip tapered balun penetrates. The radio wave abs...  
JP2006054753A
To provide a cellular phone electronic wave removing apparatus capable of minimizing electronic waves generated from a cellular phone.When a cellular phone is provided with an external antenna, the external antenna is covered with a U-sh...  
JP2006049354A
To solve the matter of a conventional electromagnetic wave absorber that production is serious because different linear antenna elements must be formed on an insulating sheet, i.e. a different antenna pattern must be formed or an insulat...  
JP2006041051A
To provide a small-sized radio wave absorber having superior radio wave absorbing function in a higher frequency range, while maintaining radio wave absorption characteristics in a low frequency range, and to provide a composite radio wa...  
JP3744296B2  
JP2006032929A
To provide an electromagnetic interference inhibitor and a method of reducing electromagnetic interference with the beneficial effect of reducing electromagnetic interference over a wide frequency band.An electromagnetic interference inh...  
JP2006504373A  
JP3764358B2
To provide a method of evaluating an electromagnetic wave transmission structure which enables the analysis of the electromagnetic condition in a scale of the body of an aircraft, taking electromagnetic wave characteristics of a heteroge...  
JP3764885B2
To provide a mobile type positioning system receiver which enhances an S/N ratio of a radio wave from a positioning system satellite, and keeps high positioning operation performance by a positioning system, in a positioning system recei...  
JP2006013901A
To provide an antenna with directivity, and at the same time, improve shield effect.An antenna 106 for external radio communication is installed in a circuit board 104 which is mounted in a 1st cabinet part 101, and at the same time, cir...  
JP3756791B2
To easily and adequately realize a circular polarization radio reflective attenuator for suppressing the reflection of circular polarization radio waves. The method of designing a circular polarization radio reflective attenuator (radio ...  
JP2006005365A
To provide a magnetic shielding sheet for a tag that can concentrate a magnetic field and make a try pass without causing the loss of magnetic energy, and to provide a tag that uses it.A magnetic shield sheet 10 is composed of a shieldin...  
JP2006005765A
To provide a means capable of avoiding the problem caising when a radio wave obstacle exists in a straight line path for transmission and reception of radio wave signals and suppressing or preventing the occurrence of interference.This r...  
JP2005538629A  
JP2005347524A
To reduce the influence on the evaluation of temperature characteristics caused by an electromagnetic wave radiated or received from an object to be tested, by making it possible to constantly hold the ambient temperature of the object t...  
JP2005340730A
To provide a radio-wave absorbing body wherein it has a light weight and a low cost, and its good radio-wave absorbing characteristic beginning from a low frequency is obtained in spite of its short length, and further, it has no charact...  
JP2005340318A
To provide an electromagnetic wave absorber which has a high electromagnetic wave absorbing property with respect to unwanted electromagnetic waves in a microwave band and can be easily given a three-dimensional profile and has excellent...  
JP2005331512A
To easily and appropriately evaluate a circular-polarized radio wave reflection attenuator for reducing radio wave reflection of a circular-polarized wave.This evaluation method for a circular-polarized radio wave reflection attenuator i...  
JP2005333125A
To provide a radio wave absorber and its manufacturing method, which can absorb radio wave in a wide band, and which is lightweight, has flame retardance, and is durable in outdoor use.A radio wave absorbing layer 3 is comprised of a com...  
JP2005323380A
To provide a simple configuration which restrains unwanted electric waves, without major changes in the characteristics caused by the incident direction or the polarization status of the electric waves.Electric wave attenuating object 40...  
JP2005317825A
To provide an electromagnetic wave absorber having an excellent electromagnetic wave absorbing characteristic.The electromagnetic wave absorber comprises a boron carbide powder having an electrical conductivity of not less than 5×10-6 (...  
JP2005317945A
To provide an electromagnetic wave absorber which efficiently absorbs electromagnetic waves over a broad band.A first conductive element 12 in a first conductive element layer 5 has cross-shaped holes 30 and square holes 31. Square holes...  
JP2005311330A
To provide a radio wave absorber good in weather resistance, bending workability, productivity, etc.The transparent radio wave absorber comprises a transparent dielectric layer 1 between a transparent resistance film 3 containing very th...  
JP3736668B2
To efficiency mass-produce a radio wave absorber with excellent waterproofness only by simply fixing radio wave absorbing sticks to a frame body by continuously producing the radio wave absorbing stick through drawing molding. A glass fi...  
JP2005312049A
To provide a horn antenna which presents superior performance, by indicating a superior radiation pattern over wider operating frequency bands.There are provided ridges 210 arranged symmetrically with each other with a longitudinal axis ...  
JP2005286195A
To provide an extrudable crosslinked grease-like electromagnetic wave absorber that is excellent in electromagnetic wave absorbability, thermal conductivity, and flame retardant, is reduced in temperature dependency, and can be applied t...  
JP2005277373A
To provide a radio wave absorber which has a reflection attenuating ability capable of preventing a communication trouble due to reflection of a electromagnetic wave etc., can be thinned and lightened, and has a wide band attenuation cha...  
JP2005259776A
To provide a transmission type double-sided radio wave absorbing device that passes and absorbs radio waves from both directions.The transmission type double-sided radio wave absorbing device is constituted of a left radio wave absorber ...  
JP3722391B2
To obtain a composite magnetic body and an electromagnetic interference suppresser effective for suppressing electromagnetic interference in high-frequency electronic apparatuses such as movable communication apparatuses. A composite mag...  
JP3720581B2
To obtain the sensitivity of a horizontally polarized wave component of a circularly polarized wave at a low elevation angel by arranging plural planar radiating elements under the ground conductor plate of a microstrip planar antenna (M...  
JP2005252080A
To provide a compact, thin wave absorber that does not employ heavy metal for materials of the wave absorber layer and makes effective use of carbon nanotube structure properties to absorb a wide band of radiowaves, and to provide a meth...  
JP2005249659A
To reduce leak-in and turn-in of transmission electric power from a transmission antenna into a reception antenna.A sheetlike electromagnetic wave absorbing body 8 with one face coated with a metal layer 7 is provided to partition an are...  
JP2005251918A
To provide a compact and lightweight electromagnetic wave noise suppressor which facilitates an incorporated application into an electronic apparatus or an electronic part, and has a good electromagnetic wave noise suppression performanc...  
JP3716940B2
PURPOSE: To obtain a measuring apparatus for an electromagnetic wave absorption characteristic which can be constructed to be small in size. CONSTITUTION: A measuring apparatus for an electromagnetic wave absorption characteristic design...  
JP2005244043A
To provide a radio wave absorber having reflection attenuating capability for preventing any communication failure due to the reflection of an electromagnetic wave or the like, which can be made small in thickness and light in weight.Thi...  
JP2005526437A  

Matches 801 - 850 out of 2,847