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Matches 901 - 950 out of 2,847

Document Document Title
JP2004247603A
To provide an MnZn-based ferrite wave absorber that has excellent wave absorbing characteristics and, in addition, can also absorb electromagnetic waves in a high frequency range.This wave absorber is composed of a spinel main phase cont...  
JP2004247602A
To provide an MnZn-based ferrite wave absorber that has excellent wave absorbing characteristics and, in addition, can also absorb electromagnetic waves in a high frequency range.This wave absorber is composed of a spinel main phase cont...  
JP2004527026A  
JP2004247851A
To provide a built-in antenna for mobile communication for reducing the SAR (Specific Absorption Rate) without deteriorating the antenna characteristics.Since a magnetic member 5 is provided to a side face of the built-in antenna 1 for m...  
JP2004238195A
To surely discriminate an IC tag T inside a work W on a conveyor line L.A gate-shape frame body 10 is provided with a shielding wire net 15 and a shielding magnetic shield plate 17 in a front surface side and a rear surface side thereof,...  
JP2004239745A
To solve the problem that angle of arrival can not be estimated with superior precision since a blind part exists in response of an antenna element even if the angle of arrival changes.This antenna for detecting angle of arrival is provi...  
JP3556618B2  
JP2004220141A
To provide a method for precisely inspecting whether an IC inlet to be inspected is good in quality under the condition that many IC inlets are formed on an insulating film.The inspection of the IC inlet 1 formed on the insulating film 2...  
JP2004213217A
To provide a reader/writer for a data carrier which is thin in thickness without being affected by surrounding metal and without being restricted in its installation place.This reader/writer 100 for identifying and controlling the data c...  
JP2004207506A
To provide a radiowave absorber which is easily designed and demonstrates a high absorbing performance for the radiowave incident in the range of wide angle.The radiowave absorber comprises a reflection layer 1 and an absorption layer 2 ...  
JP2004193531A
To provide an electric wave reflection suppressor having a wide band matching property and its constitution method by introducing the concept of a high frequency integrated circuit to the constitution of an electric wave reflection suppr...  
JP2004179354A
To develop an electromagnetic wave absorption panel that can prevent degrading of absorption performance in case when the incident angle of an electromagnetic wave becomes large, and to improve its sound absorption performance so as to u...  
JP2004159341A
To provide an antenna unit capable of insulating between antennas at a high level of insulation, being compact, and obtaining a high level gain at low cost.The antenna unit formed to be a hollow box shape is provided with (1) a substrate...  
JP2004516699A  
JP2004516087A  
JP2004153807A
To reduce the influence of electromagnetic waves to human body and increase antenna efficiency while maintaining lightweight and compactness of a portable telephone.A dielectric sheet 15 is installed in the chassis internal wall of a por...  
JP2004515950A  
JP2004153463A
To provide a mobile communication terminal which makes a non-contact coil antenna improved in communication performance small in size and thin in thickness compatibly as a whole.The mobile communication terminal 1 such as a mobile phone ...  
JP2004146978A
To provide an unbalanced antenna wherein a ground conductor is reduced while maintaining the antenna characteristic.The ground conductor is reduced by leaving at least part of the ground conductor confronted with a radiation conductor in...  
JP2004146801A
To provide a porous magnet having porosity, a low dielectric constant, a low water absorption rate and high reliability, and also to provide a manufacturing method thereof, and an electric-wave absorber and a magnet lens therewith.The ma...  
JP2004140194A
To provide a radio wave absorber which has a simple and thin structure, and can be effective to a multifrequency band.The radio wave absorber 11 comprises conductor foil 13, a resistance film 15 which is arranged so as to be set opposite...  
JP2004140560A
To suppress unwanted radiation (radiation in the direction toward a scattering body), regardless of the position of an antenna and the attaching position of a shielding member for suppressing the influence of a peripheral body on the ant...  
JP2004127980A
To provide a non-halogen flame-retardant electromagnetic wave absorber not requiring vulcanization, low in cost, high in electromagnetic wave absorption, light in weight and excellent in processability, excellent in mechanical strength, ...  
JP2004129016A
To provide a radio attenuator for antenna which can easily and effectively reduce a transmission/reception power of a radio transmitter/receiver.An electromagnetic wave absorber 21 having a property of absorbing an electromagnetic wave, ...  
JP2004117288A
To provide an antenna characteristic measuring device for actualizing accurate measurement.A rotary stage device 130 for rotatably supporting a receiving antenna 500 to be measured has a first rotary table 131, a supporting rod 133 and a...  
JP2004119894A
To provide an electromagnetic-wave absorber and a manufacturing method thereof whereby an electromagnetic-wave absorbing performance is maintained over a long term, and a uniform electromagnetic-wave absorbing performance having no varia...  
JP3542429B2
To provide a radio wave absorbing structure body of a comparatively large ferrite tile of easy installation, and provide civil engineering construction part member having radio wave absorbing function capable of construction together wit...  
JP2004104063A
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-hole...  
JP2004077399A
To solve the problem of milliwave radar which is used for the automatic driving of a vehicle or for preventing the collision of the vehicle that the radar detects unnecessary objects by receiving the reflected waves of the side lobe of a...  
JP3528427B2
To make it possible to take a sufficient measure for a noise found after necessary devices are mounted without taking some measures beforehand and eliminate an installation space for the devices for settling the noise problem by coating ...  
JP2004506530A  
JP2004062879A
To provide an automatic toll collection system which prevents multipath at a toll gate by devising configuration and structure of the toll gate.In the automatic toll collection system which performs automatic collection of tolls by perfo...  
JP2004056643A
To provide a high performance and compact antenna device by which a high antenna gain can be obtained, which is hard to be influenced by wind, etc., and can be suitably used by being mounted on a vehicle, etc.The antenna device is provid...  
JP2004039877A
To provide a television wave absorber which can absorb television waves of VHF and UHF and be worked arbitrarily from a plate-like object having a large area to an object having a complex shape, and is lightweight and easy for constituti...  
JP2004040403A
To provide an antenna device, in which the problem of performance degradation of direct waves is solved.The antenna device has a plurality of radiation fins 1 provided to a heat pipe 2, which conducts heat of a high frequency module 4 co...  
JP2004502978A  
JP3500596B2
To protect an electromagnetic interference suppressor or the like, comprising a composite magnetic body containing a soft magnetic powder and an organic binder by covering the suppressor with a protective cover made of identical kind of ...  
JP2003347787A
To provide an electromagnetic wave absorbing composition of a high electromagnetic wave absorbing performance, heat conductivity, and a dielectric breakdown voltage. The magnetic powder coated with electrically insulating inorganic fine ...  
JP3500317B2
To prevent antenna characteristics of a ground wave mobile terminal from being fluctuated and also maintain excellent antenna sensitivity regardless the presence/absence of an adapter type satellite communication terminal in a ground rad...  
JP2003332785A
To provide a radio wave propagation space, e.g. a microwave darkroom, having an inexpensive and simple structure as compared with prior art, and to provide a stable radio communication environment capable of preventing multiplex reflecti...  
JP2003321811A
To provide a structure provided with radio-wave absorptivity and acoustic-wave absorptivity.In a radio-wave acoustic-wave absorbing panel, which has a laminated structure arranged in order of a radio-wave absorbing layer and a sound abso...  
JP2003324300A
To provide a method for suppressing an unnecessary radio wave which performs a radio wave absorbing function balanced between a low incident angle and a high incident angle relative to the radio wave of circular polarization in a 5.8 GHz...  
JP3488758B2
PURPOSE: To provide a pressure transmitter, having a high airtightness of an inner section housing an electric circuit against the outside, capable of being not influenced by an intense radio wave even when using it being exposed thereto...  
JP3482942B2
To provide an electric wave absorber showing high electric wave absorption performance and a method for applying an interior trimming material. The electric wave absorber 10 has at least a first layer 14 and a second layer 16 which conta...  
JP2003298281A
To provide an electromagnetic wave attenuation control method for satisfactorily performing radio communication by appropriately controlling attenuation quantity of electromagnetic wave intensity.Radio LAN equipment 12A and 12B is arrang...  
JP2003289220A
To provide an electromagnetic wave absorbing partitioning wall set with no feeling of oppression or anxiety for a driver, without disturbing the field of view to the adjoining traffic lane.In a separation wall 10, a translucent electroma...  
JP2003287506A
To provide a free-space electromagnetic wave measuring system that can measure the constants of the material of a specimen to electromagnetic waves with high accuracy and can be miniaturized advantageously, and to provide a method by whi...  
JP3475386B2
To obtain an electromagnetic interference suppressor with indicating functionability where unwanted electromagnetic waves are suppressed effectively by composing the suppressor of a soft magnetic powder and an organic binder, wherein a c...  
JP2003264425A
To realize a television wave transmission steel tower with radio wave absorption plate, capable of efficiently absorbing radio waves by mounting the radio wave absorption plate.The radio wave absorption plate 1 having structure by lamina...  
JP2003258543A
To provide an electromagnetic shield film for reducing a transmissivity of an electromagnetic wave with a particular frequency.The electromagnetic shield film 1 is configured with a thin metallic or plastic film 2 having conductivity to ...  

Matches 901 - 950 out of 2,847