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Patent Searching and Data


Matches 901 - 950 out of 2,878

Document Document Title
JP2005057093A
To provide a radio wave absorber allowed to be manufactured at low cost as compared with a method using silicon carbide fibers and having a high radio wave absorbing characteristic in a 76 GHz band (frequency band of 75-77 GHz).In the ra...  
JP2005051623A
To provide a radio wave transmitting device and a signal transmission system of a mobile body which transmit a video signal by communication performed by a feeble radio wave, and do not bring about a time lag.This mobile body is provided...  
JP3620044B2  
JP3641796B2
To provide a composite magnetic unit and an electromagnetic interference suppressor which do not use any of halide binders, such as resins, elastomers, etc., or any of halogenous materials such as halogen-containing bromic flame retarder...  
JP3641797B2
To provide a composite magnetic unit and an electromagnetic interference suppressor, which specifies the specific surface area of a soft magnetic powder, to express its surface condition and ensures the self-extinguishing property which ...  
JP2005033413A
To provide a loop antenna and a noncontact IC card reader/writer which attenuates the far field with suppressing the attenuation of the near flux of electromagnetic waves.The loop antenna 10 has an electromagnetic shield 1 provided at le...  
JP2005030932A
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...  
JP3640006B2
To realize improvement in the magnetic efficiency, by joining a pair of half split cores having biaxial anisotropy in which particles of soft magnetic powder are oriented and arrayed in the longitudinal direction and the cross-sectional ...  
JP3613069B2  
JP2005017241A
To enable measurement of the transmitting power of a radiocommunication apparatus whose flat antenna has been integrated with a transmitting and receiving circuit and a signal processing circuit and can not be detached, and enable a comm...  
JP2005501191A  
JP3608063B2  
JP3631778B2
PURPOSE: To obtain an antenna system which can be assembled easily and can be housed in an enclosure with high mechanical stability by forming a sandwich structure of members constituting the enclosure and a shield plate and providing a ...  
JP3628548B2
To install a relay antenna at a position accurately opposite hereto and to install the antenna while avoiding an obstacle distorting radio wave transmission by providing a means that detects the strength of a radio wave received by an an...  
JP3629385B2
To provide a radar device for underground prospecting that can expand a detection range by using a small number of antennas. The radar device for underground prospecting is installed along with an underground excavator with an excavation...  
JP2004356929A
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 wav...  
JP2004341895A
To provide an excellent IC card adapted so as not to cause deterioration of receiving sensitivity of wireless communication function of a cellular phone or PHS.The IC card is shielded with a radio absorber or a ferrite sheet to prevent t...  
JP2004336303A
To provide a sleeve antenna which can stably obtain the predetermined frequency characteristic even if disturbance is generated at the base end of the sleeve.The sleeve antenna 20 constituted is provided with a radiating part 22 in the l...  
JP2004328610A
To promote thinning, to facilitate assembly, and to improve productivity while suppressing characteristic deterioration of an antenna device which can be mounted on a mobile apparatus and is used for non-contact communications.In an ante...  
JP2004328330A
To adequately control directivity to obtain the maximum gain of a radio wave radiated from an antenna device in the desired direction.In the integrated mobile antenna device 1, an antenna element 5 for VICS is mounted in a location devia...  
JP2004312696A
To overcome the problem that an unwanted object is also detected since a side lobe of a transmitting radio wave is reflected on an ambient object and its reflected wave is received in a millimeter wave-radar to be used for automatically ...  
JP2004310329A
To provide a non-contact IC card and a housing for non-contact IC cards, which can limit or suppress a function of the non-contact IC cards based on the intention of users and also can prevent from a state of hindered normal communicatio...  
JP2004303824A
To provide a laminated soft magnet member exhibiting high SAR countermeasure effect, and to provide an electronic apparatus incorporating the laminated soft magnet member.Magnetic body layer 7 of the laminated soft magnet member 5 is for...  
JP2004297763A
To provide a shield structure which allows radio waves to pass through over a specific frequency band and exhibits high shielding characteristics in other bands.An aperture with a specific form and a peripheral length is formed on a cond...  
JP2004282678A
To reduce or eliminate an effect of a coaxial cable connected to an antenna on an emission characteristic when measuring a characteristic of a small sized antenna.Ferrite elements 11a to 11f are attached to the coaxial cable 3 connected ...  
JP2004250998A
To provide an electomagnetic wave absorbing panel and an electromagnetic wave absorbing panel unit provided with a single polarized wave or both horizontally and vertically polarized wave absorbing function and a lightweight, inexpensive...  
JP2004253760A
To provide a sheet material for wave absorbers that is light and has an excellent shape retention property and a field assembling constructing property and to provide a wave absorber consisting of the sheet material for wave absorbers.Th...  
JP3562476B2  
JP2004527026A  
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...  
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...  
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...  
JP2004516699A  
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...  
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...  
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 ...  
JP2004515950A  
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...  
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...  
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...  

Matches 901 - 950 out of 2,878