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Patent Searching and Data


Matches 401 - 450 out of 3,101

Document Document Title
WO/1999/025166A1
A radio wave absorber which has both inflammability and flexibility and is advantageous from the viewpoints of lightweightness, heat insulation, soundproofness and soundshielding, and the freedom of shaping owing to the easiness of proce...  
WO/1999/016090A1
A radio wave absorbent comprising, as a main component, a magnesium-zinc base ferrite material containing 45 to 50 mol % of iron oxide, 7 to 19.7 mol % of magnesium oxide, 24 to 28.5 mol % of zinc oxide, 4 to 16 mol % of copper oxide and...  
WO/1999/013697A1
A field erectable nonflammable radio wave absorber which comprises a main radio wave absorbing member fixed to a wall surface, a ceiling surface or a floor surface of a radio wave darkroom, and a cap put on the main radio wave absorbing ...  
WO/1999/005752A2
An absorber includes a plurality of shredded foam particles and a plurality of fiber whiskers. The fiber whiskers are interspersed among, and attach to the shredded foam particles to create a foam-fiber mixture. A curable adhesive is add...  
WO/1999/003167A1
A hand-portable telephone including a casing (1), an antenna device (7) with at least one radiating element (7a, 7b) located in said casing, and a protective device for absorbing a substantial part of the electromagnetic energy being rad...  
WO/1998/058423A1
An antenna applied to satellite communications wherein a plurality of planar radiating elements are arranged below an earthing conductor of a microstrip planar antenna, and connected to the earth conductor by electrical connecting means....  
WO/1998/044772A1
A radio wave absorbing panel is made up of a first insulating substrate and a second insulating substrate disposed in parallel a predetermined distance apart and a middle insulating substrate disposed between and parallel with the first ...  
WO/1998/038518A1
A plastic body, in particular flat element, limits the reflection of high-frequency radiation in HF-shielded areas, such as computer installation sites, HF-shielded rooms or the like, especially for carrying out measurement on high-frequ...  
WO/1998/038697A1
The invention relates to a housing (1) with radar-absorbent qualities, specially for a radar sensor in a motor vehicle, comprising electrically conducting particles whose dimensions are in keeping with the frequency of the radar beams to...  
WO/1998/035403A1
Disclosed is a microwave antenna array, consisting of a focusing means (11) and at least one supply element (10), in which at least one component support (14) comprising electronic or electrical components (16, 17) is arranged in an area...  
WO/1998/031072A1
An electromagnetic wave absorption panel (100) for use in building construction includes an absorber layer (106) that utilizes novel materials such as layered superlattice materials, garnets, magnetoresistive materials, conducting oxides...  
WO1998020577A3  
WO/1998/020577A2
A radio telephone, preferably intended for cellular telecommunication, has an apparatus housing (20) and at least one antenna (21), which is mounted to or in connection with the apparatus housing for performing the wireless communication...  
WO/1998/014962A1
A thin electromagnetic interference depressor effective in suppressing electromagnetic interferences of microwave band. As an electromagnetic interference suppressing material, there is provided a compound magnetic material which is prep...  
WO/1998/010440A1
Flat soft magnetic powder is dispersed in organic binder to prepare a composite magnetic material. By employing biodegradable plastic as the organic binder, the composite magnetic material can be dumped without causing pollution. The bio...  
WO/1998/010439A1
A composite magnetic material which is used as an electromagnetic interference suppressing material over a wide band in a high-frequency region is substantially made of powder of a soft magnetic material and an organic binder. In order t...  
WO/1998/008234A1
An EMI preventive part which has a sufficiently large shielding effect against the transmission of electromagnetic waves radiated outside from an active device without deteriorating the circuit function of the device and prevents malfunc...  
WO/1997/044857A1
RFI interference has for a long time posed problems to electronic engineers, for instance, and demands a serious approach to ensure the protection of apparatus against such interference and also to avoid interference radiation by such ap...  
WO/1997/042844A1
An energy conversion composition having the functions of absorbing and converting energy, such as mechanical energy, thermal energy, optical energy or electric energy, having an excellent performance and capable of reducing the thickness...  
WO/1997/016058A1
A radio communication device, such as a portable telephone set, or a beeper, and a cover into which such a communication device is inserted. The cover ensures the safety of the user of the radio communication device by blocking a signifi...  
WO/1997/008713A1
The invention is a radar absorbing material and a process for making same. In detail, the invention includes a binder material containing a mixture of two groups of spheres made of a magnetic material. The first group of spheres (30B, 30...  
WO/1996/040505A1
An infrared radiation-interactive article (10) comprising an oxidizable metal body (18) of a radiation-interactive size and shape, with an oxidation-promoting salt (20) in contact with the metal body (18), arranged so that in exposure to...  
WO/1996/021254A1
An improved antenna for a portable radio communication device including a first elongate electrically conductive member (10) having opposed first and second ends, the first end adapted to be mounted in electrical communication to a radio...  
WO/1996/010278A1
The proposed material comprises a non-metal base and applied thereto an electrically conducting covering including a layer of moderate electrical conductivity made of a composite of non-metal compounds and metals and situated immediately...  
WO/1996/008863A1
Arrangements essentially in the form of an antenna element (mpa) are located near a radiating conductor of the equipment (mp), so as to absorb electromagnetic energy reaching it by being coupled to the radiating conductor.  
WO1996001912A3  
WO/1996/002954A1
The present invention is applicable to the art of identification, interrogation and communication equipment. The present invention has particular application to equipment used in conjunction with smart cards, tags and like apparatus and ...  
WO/1996/001912A2
An article (130) comprising a non-conductive substrate (136), preferably of an environmentally degradable character, having a thickness of an oxidizable metal coating (138) thereon, and optionally an oxidation enhancingly effective amoun...  
WO/1996/000992A1
An energy absorbing arrangement suitable for use in anechoic chambers comprises an assembly of elongate planar strips arranged in two sets of parallel strips in a crossing relationship. The strips carry energy absorbing material and in o...  
WO/1996/000454A1
A panel of microwave absorbent material comprises at least one layer of a ferrite substrate, a backing reflector capable of reflecting incident radiation, and means for applying a magnetic field to the substrate. The applied field change...  
WO/1995/033515A1
In order to provide a device for the control of oscillating electromagnetic fields, in particular those from mobile radio transmitters, so that detrimental frequency-intensity spectra are converted into largely innocuous spectra, the inv...  
WO/1995/033699A1
A magnetodielectric ceramic composite material comprising a first disperse phase which contains one or more magnetic ferrites, and a second, essentially continuous phase which contains electrically insulating oxides, characterized in tha...  
WO/1995/030229A1
A protective device is disclosed for shielding people from high-frequency electromagnetic fields and/or to provide camouflage against heat-imaging systems. The proposed device is designed as a suit which surrounds an individual and is ma...  
WO/1995/028014A1
The invention relates to a panel (1) for use in building, and to a method of making such a panel. The panel comprises a moulded body (2) and an absorber (3) for absorbing incidient electromagnetic energy in the radar range frequencies, i...  
WO/1995/007603A1
A form in place conductive gasket is disclosed. The gasket, foamed, gelled or unfoamed is made of one or more elastomer resins, such as silicone urethane and/or thermoplastic block copolymers and is either filled with a conductive filler...  
WO/1995/005128A1
The embodiments of the inventions disclosed in this application develop a "protection" electric, magnetic or electromagnetic field or fields which are either superimposed upon an ambient field which is detrimental to the health of living...  
WO/1995/005013A1
An absorber (2) and a method for constructing such absorber is provided for use, for example, in an anechoic chamber. The absorber includes one or more backing layers (8) and at least one tapered section (4) extending therefrom. The tota...  
WO/1995/000983A1
In order to absorb electromagnetic waves in a measurement chamber, the sidewalls and the ceiling of the chamber are lined with contiguous pyramids (20). The pyramid vertices point into the chamber. The structure element (20) has a frame ...  
WO/1994/027109A1
Anti-radar nets consisting of a fabric and a coating layer on both sides of the fabric, in which the weft threads of the fabric are provided with metal fibres and at least one of the coating layers is provided with carbon fibers, and pro...  
WO/1994/024724A1
A radar absorbing material comprising multiple layers integrated to form a thin, flexible, and lightweight structure. The material includes a substrate (12) having disposed thereon absorber elements that are resistively loaded to enable ...  
WO/1994/018817A1
A device for radio communication (PH), such as for example radiophone, which includes a shielding layer (RFS) which under operating conditions is between the antenna means and the user. Said shielding layer (RFS) reduces electromagnetica...  
WO/1994/013878A1
Textile materials having radar attenuating properties comprise a polymer enclosed scrim characterised in that the material further comprises hollows which are at least partially filled with radar attenuating material. Preferred embodimen...  
WO/1993/025270A1
The disclosed device comprises a container (1) intended to be placed in the vicinity of the source of said radiation and containing a medium (6) which has been subjected to prior irradiation and a metal salt or a combination of metal sal...  
WO/1993/024307A1
A method for making a material with an artificial dielectric constant is carried out by choosing the desired dielectric constant for a particular electromagnetic field, selecting a substantially non-electrically conductive sheet material...  
WO/1993/023892A1
Device for the reduction of the electromagnetic energy reflected by any given structure, at the lowest radar frequencies, consisting of relatively thin panels, spaced regularly and symmetrically (Figure 1) on the structure to be protecte...  
WO/1993/023222A1
A fabric having both a high degree of user comfort and a high degree of Ultraviolet Radiation protection is provided. The preferred yarn is at least 40 Denier by 40 Denier, preferably 70 Denier by 2 \ 70 Denier Nylon Yarn. The yarn is wo...  
WO/1993/023893A1
An electromagnetic energy absorbing structure (20) provides a base structure (22) having an electrically conductive ground plane (38) positioned thereover. At least one dielectric (36) and one impedance layer (32) are positioned over the...  
WO/1993/015530A1
Absorbers of electromagnetic waves in closed and shielded rooms consist of three-dimensional bodies made of foam material impregnated with finely dispersed conductive materials and arranged close to each other on the wall of the room to ...  
WO/1993/009944A1
A coating (14) comprising an inert base material (15) having dispersed therein particles of metals (16) capable of reflecting or absorbing electromagnetic radiation. The coating process may be applied to lightweight gray goods (12) which...  
WO/1993/008586A1
Described is a microwave-absorbing component comprising a substrate made of electrically insulating material and, applied on the substrate, a film 5 to 50 nm thick, the surface profile of the film being selected to give the required radi...  

Matches 401 - 450 out of 3,101