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Class 343/787 - Including magnetic material


Subclass of Class 343 - Communications: radio wave antennas
Definition: Subject matter including magnetic material which modifies
No. of patents: 225
Last issue date: 04/24/2012


1            
NumberTitleIssue Date
8164534Conversion of an antenna to multiband using current probes
A multi-band antenna comprising a conductive structure and a plurality of current probes coupled around the conductive structure is disclosed. An existing antenna capable of generating H fields having a first signal line is converted into a multi-signal line antenna...
04/24/2012
8154464Magnetic material antenna and ferrite sintered body
A magnetic material antenna using a ferrite sintered body comprising one or more conductors disposed at least on a surface or in internal portion of the ferrite sintered body, wherein the ferrite sintered body is a sintered body of Y-type ferrite containing BaO, CoO...
04/10/2012
8106844Antenna apparatus
A magnetic member is interposed and arranged between an antenna element and a printed circuit board, and an air member or a dielectric member is interposed between the antenna element and the magnetic member. The magnetic member is constituted of a nanogranular stru...
01/31/2012
8063843Antenna structures made of bulk-solidifying amorphous alloys
Antenna structures made of bulk-solidifying amorphous alloys and methods of making antenna structures from such bulk-solidifying amorphous alloys are described. The bulk-solidifying amorphous alloys providing form and shape durability, excellent resistance to chemic...
11/22/2011
8040287Radio wave receiving device with magnetic drive unit and antenna structure and electronic apparatus using the radio wave receiving device
A radio wave receiving device includes at least one magnetic drive unit and an antenna structure having a narrow core formed of magnetic material and a coil wound around the central part of the core. The device further includes two external magnetic members, each ha...
10/18/2011
8035569Antenna core and antenna
An antenna core produced by shaping a soft magnetic metal powder with the use of a resin as a binder, wherein the soft magnetic metal powder is an amorphous soft magnetic metal powder or a nanocrystal-containing amorphous soft magnetic metal powder, of the general f...
10/11/2011
7936310High-impedance substrate
A high-impedance substrate is provided, which includes a metallic plate employed as a ground plane, a resonance circuit layer spaced away from the metallic plate by a distance “t”, the resonance circuit layer being provided with at least two resonance circuits h...
05/03/2011
7932869Antenna with volume of material
An antenna includes one or more antenna elements and a volume of material contained at least partly within a volume of the one or more antenna elements. The volume of material has at least one electromagnetic property that is different from free space. The volume of...
04/26/2011
7924235Antenna apparatus employing a ceramic member mounted on a flexible sheet
An antenna apparatus used in a wireless communication medium or a wireless communication medium processing apparatus constructed by a constitution of including a magnetic member in which a magnetic ceramic powder is used as a major component thereof and which is pro...
04/12/2011
7903040Tunable arrangements
The present invention relates to a tunable microwave/millimeter-wave arrangement comprising a tunable impedance surface. It comprises an Electromagnetic Bandgap Structure (EBG) (Photonic Bandgap Structure) comprising at least one tunable ferroelectric layer (3
03/08/2011
7847750Antenna device adapted for portable radio apparatus
An antenna device includes a printed circuit board and an antenna element. The printed circuit board has a face a portion of which is formed by a conductive layer overlaid with a magnetic material layer made of anisotropic magnetic material. The magnetic material la...
12/07/2010
7830323Antenna device and wireless mobile terminal provided with magnetic material
An antenna device is provided. The antenna device includes an antenna element including a first portion and a second portion formed almost parallel to each other, and a plane-shaped piece of magnetic material provided between the first portion and the second portion...
11/09/2010
7821468Chip antenna, an antenna device, and a communication equipment
The linear conductor 2 penetrates the magnetic base 1 along with the longitudinal direction of the magnetic base 1. The linear conductor 2 has a straight shape. The straight shape conductor 2 is installed so that it is surrounded b...
10/26/2010
7786947Broadband antenna
There is provided a broadband antenna including: an insulating block having opposing first and second main surfaces and a side surface between the first and second main surfaces; a first radiator pattern formed on the first main surface and having a tapered slot wit...
08/31/2010
7782267Antenna coil antenna device
A flexible substrate is wound around a magnetic core to define an antenna coil. A receiver coil including a first receiver coil portion and a second receiver coil portion which have opposite winding directions, and a transmitter coil including a first transmitter co...
08/24/2010
7773044Method for enhancing an antenna performance, antenna, and apparatus
The invention relates to a method for enhancing an antenna performance, wherein the property of the antenna substrate is modified by using an ultrasonic field. The invention also relates to an antenna comprising the modified antenna substrate, and to an apparatus co...
08/10/2010
7714793High-frequency magnetic material and antenna system using thereof
A superior high-frequency magnetic material having a smaller ratio (μ″/μ′) of a real part μ′ of permeability and an imaginary part μ″ of permeability in a high-frequency region and an antenna system using thereof are provided. The high-frequency magnetic...
05/11/2010
7671816Low frequency antenna
An antenna includes a core formed of a high-permeability material and a coil wire wrapped around at least a part of the core. In one embodiment, the high-permeability material includes ferrite material. ...
03/02/2010
7616167Semiconductor device and method of producing the same
A semiconductor device includes a semiconductor substrate having a first surface and a second surface opposite to the first surface; a first through wiring penetrating through the semiconductor substrate from the first surface to the second surface; an antenna forme...
11/10/2009
7616166Three-axis antenna, antenna unit, and receiving device
To achieve sensitivity not deviating in any of XYZ directions. A three-axis antenna with a cross-shaped core (2) having a pair of X-axis arms (22a, 22b) projecting in the X-axis direction in an orthogonal coordinate system and a pa...
11/10/2009
7583232Chip antenna body and method of manufacturing the same
There is provided a chip antenna body and a method of manufacturing the same. The chip antenna body including: a plurality of minute segments formed of one of a dielectric material, a magnetic material and a mixture thereof, the minute segments arranged to be spaced...
09/01/2009
7570223Antenna core and method for production of an antenna core
An antenna core comprises a flexible stack of a plurality of oblong soft-magnetic strips consisting of an amorphous or nanocrystalline alloy. The strips of said antenna core are separated from one another by an electrically insulating film each. The amorphous or nan...
08/04/2009
7522117Antenna structure and radio-controlled timepiece
An antenna structure capable of receiving an external radio signal has a structure that enables reception of magnetic flux caused by an external radio signal, but has a magnetic path that makes it difficult for magnetic flux generated by resonance to leak to said ou...
04/21/2009
7515111Antenna apparatus
A magnetic member is interposed and arranged between an antenna element and a printed circuit board, and an air member or a dielectric member is interposed between the antenna element and the magnetic member. The magnetic member is constituted of a nanogranular stru...
04/07/2009
7508350Antenna core
A highly bendable antenna core (8) which is highly bendable for high-frequency identification systems substantially retains its soft-magnetic properties when bending occurs. The antenna core is produced by using specific amorphous or nanocrystalline alloys ha...
03/24/2009
7495624Apparatus for detection of the gradient of a magnetic field, and a method for production of the apparatus
An apparatus for detection of the gradient of a magnetic field includes at least four antenna elements (11, 12, 13, 14) composed of a ferromagnetic material, which are arranged in pairs, and a bridge circuit having at least four resistance elements (1, 2, ...
02/24/2009
7463208Antenna, and radio-controlled timepiece, keyless entry system and RFID system
An antenna comprising a magnetic main-path member comprising a coil wound around a magnetic core, and a magnetic sub-path member magnetically connected to the magnetic core for constituting a substantially closed magnetic path with the magnetic main-path member, the...
12/09/2008
7453412Nanostructured, magnetic tunable antennas for communication devices
A communication device (310) is provided that includes a nano-sized RF antenna (100) having low power consumption and wide-range frequency spectrum based on bottom-up nanotechnology. The antenna (100) includes an insulator layer (110) pos...
11/18/2008
7436372Antenna device and electronic equipment comprising the antenna device
An antenna device, housed in a space of a case of an electronic equipment, the case having a surface in which an aperture is formed, includes a magnetic substance and a coil wound around the substance. The substance includes a coil winding portion and a pair of coil...
10/14/2008
7425929Coil antenna
A coil antenna includes a magnetic core and a coil wound around a bobbin which are accommodated within a case. The magnetic core and an end of the bobbin are connected to a cap. The magnetic core and an end portion of the bobbin are covered with a foamed component, ...
09/16/2008
7423608High impedance electromagnetic surface and method
A high impedance surface (300) has a printed circuit board (302) with a first surface (314) and a second surface (316), and a continuous electrically conductive plate (319) disposed on the second surface (316) of the printed...
09/09/2008
7388500Enhanced mechanism for radio frequency identification reader
The invention relates to an enhanced mechanism for RFID reader which includes: an antenna for receiving a RFID signal transmitted from an object under test and outputting the RFID signal to the RFID reader; a metal plate disposed on an entrance of a building. The me...
06/17/2008
7372421Antenna device and communication system using it
An antenna device has a core made of a magnetic material, a coil formed by winding a conducting wire on a predetermined range including the core and the outer region of the core, and a sub-core that adjusts the resonance frequency by moving in the inner peripheral r...
05/13/2008
7362371Camera using conductive camera element as radio antenna
To provide a camera capable of performing radio communication with other unit by jointly using a conductive component previously provided for the camera as a radio antenna without using an independent radio antenna. Because a conductive component (e.g. a reflector o...
04/22/2008
7358912Coverage antenna apparatus with selectable horizontal and vertical polarization elements
An antenna apparatus comprises selectable antenna elements including a plurality of dipoles and/or a plurality of slot antennas (“slot”). Each dipole and/or each slot provides gain with respect to isotropic. The dipoles may generate vertically polarized radiatio...
04/15/2008
7358901Antenna system and apparatus
An antenna design is provided. In one embodiment, the antenna is a planar element with a radiating element containing an elliptical curved portion connected to two curved regions, the curved regions meeting at a geometric construct. Another embodiment provides an an...
04/15/2008
7348781Apparatus for electromagnetic logging of a formation
A tool for electromagnetic logging of a formation includes a tool body configured to move in a borehole penetrating the formation; an antenna array disposed on the tool body; and an electronic unit configured to control operation of the antenna array, wherein the an...
03/25/2008
7339450Inductive miniature component, especially antenna
Disclosed is an inductive miniature structural element, particularly an antenna. Said structural element comprises a winding member (1) which is embodied as a flat component and on which three coil windings (2X, 2Y, 2Z) are mounted in suc...
03/04/2008
7328989Water base ink set for ink-jet recording
An ink set for ink-jet recording comprises a pigment ink and a dye ink containing a pigment and a dye as coloring agent, respectively. The pigment ink contains water, a water-soluble organic solvent, and a negatively charged pigment wherein potassium ion and sodium ...
02/12/2008
7327266Non-contact communication system information carrier
A contactless communication system information carrier which is high in handleability and yield but low in cost is provided. It includes a core piece 11 in which an IC chip 1 with an antenna coil 3 integrally formed on one surface is fitted insi...
02/05/2008
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