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Patent Searching and Data


Matches 801 - 850 out of 2,786

Document Document Title
JP2005142298A
To obtain a desired resonance effect.An element pattern 2 constitutes a conductive pattern of a frequency selecting board which reflects or penetrates only a radio wave of specific frequency. The shape of this element pattern 2 is config...  
JP2005142578A
To provide a method of absorbing an electromagnetic wave employing a solar battery capable of vanishing reflection of the electromagnetic waves from a solar battery without interfering with a solar photovoltaic power generation.Each of t...  
JP2005142748A
To reuse a manufactured frequency selection board.Provided is a stage of adding, to respective element patterns 11, new conduction parts 11a which is electrically connected to the element patterns 11 of a frequency selection board 10 to ...  
JP2005124043A
To reduce local electromagnetic wave ratio absorption ratio (SAR) in a portable radio communication terminal.The portable communication terminal is provided with a conductive member 22 arranged around a display 20 and grounded by a groun...  
JP2005122595A
To reduce the effect of a metal plate or the like up to a degree on which a proximate non-contact communication distance is not shortened.The proximate non-contact communication apparatus having a proximate non-contact communication func...  
JP2005117033A
To provide a simply structured radio absorbing material capable of changing a matching frequency characteristics and concurrently improving the matching characteristics.The radio absorbing material is composed by arranging holes 3 in a c...  
JP2005109596A
To solve a problem that at least one arrival angle detection antenna is required to be installed, a plurality of antennas including a communication antenna must be installed with high precision for the purpose of communication and positi...  
JP2005094537A
To suppress the radiation of leakage radio waves in an antenna device used to a radar or radio communication by solving the problem that a conventional antenna device is disabled to sufficiently suppress leakage radio waves that are radi...  
JP2005086115A
To provide an electromagnetic wave absorber having excellent electromagnetic wave absorption characteristics.The electromagnetic wave absorber comprises boron carbide powder whose conductivity is not less than 5×10-6(S/cm). The electrom...  
JP2005086528A
To obtain an interference wave shielding structure for a radio wave receiving antenna for preventing an interference between a reception desired radio wave and an undesired electromagnetic interference wave by preventing the undesired el...  
JP2005086507A
To dispense with a radio access point for each building and distance adjustment between terminals and to surely prevent positional deviations between radio antennas of radio access points and between terminals arranged facing the radio a...  
JP2005080023A
To provide a magnetic core member configured so as to be able to simultaneously satisfy the improvement of a communication characteristic of an antenna coil and sufficient electromagnetic shielding action from a shield plate, an antenna ...  
JP3654919B2
PURPOSE: To provide an electromagnetic shield, a shielding panel, a shielding inlet/outlet structure, a shield through structure, and a shielding room by avoiding the problems of magnetic saturation and stress of a ferromagnetic body to ...  
JP3627901B2  
JP2005057438A
To realize an excellent frequency characteristic and signal reproducibility by suppressing an influence of reflection at an element end of an antenna having a conical or triangular element.Slits 31 to 35 are formed in the periphery of th...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
JP3562476B2  
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  

Matches 801 - 850 out of 2,786