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Patent Searching and Data


Matches 901 - 950 out of 2,824

Document Document Title
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 ...  
JP2003258541A
To provide a pseudo plant for environment protection for eliminating adverse effect of a transmission radio wave from an antenna and an electromagnetic wave produced from overhead transmission and distribution lines and an electronic sta...  
JP3470657B2
To obtain a sector beam antenna device having a scattering body which obtain desired wide sector beams. This device has parallel flat plates 1 composed of the combination of two parallelly arranged conductor flat plates 1a and 1b of whic...  
JP2003258542A
To provide a circuit integration type molding with which a noise countermeasure component can be omitted or simplified, an electronic device can be small-sized furthermore, and the assembly performance can be enhanced, and to provide a m...  
JP2003258483A
To provide an electromagnetic wave shielding transfer material which shields only an electromagnetic wave having a specific frequency, which can be transferred to a member having a rugged and curved surface or the like and which has exce...  
JP2003526928A  
JP3467990B2
To reduce cross polarization, due to the electrical coupling with improvement of the characteristic and to secure a coplanar constitution for both strip antenna and strip line for facilitating the production and the cost reduction of a p...  
JP3467637B2
To provide an electromagnetic shielding window, by which an existing glass window can be improved and executed into the electromagnetic shielding window simply at low a cost. An electromagnetic shielding film 7 is stuck onto the whole ex...  
JP2003249787A
To provide a panel for radio wave absorption which can effectively exhibit absorbing performance of radio waves both in a VHF band and in a UHF band which a ferrite tile has.In the panel for radio wave absorption which is to be fixed to ...  
JP2003243920A
To provide a radome capable of reducing or eliminating ground clutter and unnecessary echo from a low-lying object or the like.The radome comprises a transmission radome part through which a radio wave sent/received by an antenna is tran...  
JP3466129B2
To provide an electronic toll collection system preventing a multipath in a tollgate by devising the configuration and structure of the tollgate. In the electronic toll collection system for automatically collecting tolls by performing r...  
JP3463189B2
To provide an electromagnetic interference suppressor which can be fixed to an electric device, etc., without deteriorating its characteristic and its fixing method, and to provide a device and a part which use the electromagnetic interf...  
JP2003227110A
To provide an ETC system electromagnetic wave absorbing soundproof wall capable of absorbing -10 dB or more of an electromagnetic wave at a wide angle such as an angle of incidence in a high frequency zone of 4 to 6 GHz used by the ETC s...  
JP2003229691A
To develop a radio wave absorbent which is excellent in radio wave absorbing properties, superior enough in shock resistance so as not to be chipped or damaged when it is manufactured or in use, and high in productivity.This radio wave a...  
JP3458150B2
To provide a noise absorption core wherein magnetic efficiency is raised by lighter weight and improved degree of freeness. A base part 1a and sandwiching parts 1b and 1c extending in a specified direction from one end and the other end ...  
JP3459630B2
To provide a radio wave absorbing panel, into which foreign substance such as water, dust or exhaust gas or the like is less likely to penetrate into, and which is lightweight and thin and has sufficient radio wave absorbing performance....  
JP3456512B2
To realize indoor radio communication with high quality by means of a simple antenna configuration by reducing multi-path fading. Let a height of a ceiling 4 in a room be H, a height from a floor 1 to an antenna 8 of a terminal station b...  
JP2003218630A
To provide an antenna system capable of suppressing decreasing the amount of diffracting scattering waves and reflected waves propagated along a radome.In the antenna system provided with a radiation element, a reflection mirror and the ...  
JP2003523118A  
JP2003198412A
To reduce the specific absorption rate (SAR) when using a miniaturized communication equipment such as a portable telephone terminal.In the area a near the magnetic field generated in a portable telephone terminal 10, anisotropic magneti...  
JP3448012B2
To provide an electromagnetic-wave absorbing material and its manufacturing method wherein its electromagnetic-wave absorbing ability is large and its absorbing performance for absorbing an electromagnetic wave projected on its incidence...  

Matches 901 - 950 out of 2,824