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| Number | Title | Issue Date |
| 8188933 | Antenna unit and mobile terminal therewith An antenna unit includes an antenna formed on a magnetic sheet. A transmission circuit includes an inductor, a matching capacitor, and the antenna connected in series, and a reception circuit includes the antenna, the matching capacitor, a resistor, and a capacitor ... | 05/29/2012 |
| 8179332 | Antenna coil and antenna device An antenna device is constructed such that an antenna coil including a magnetic core and a flexible substrate is mounted to a circuit board. A first coil portion having a coil axis parallel or substantially parallel with a main surface of the magnetic core includes ... | 05/15/2012 |
| 8159405 | Magnetic antenna and board mounted with the same A magnetic antenna, suitable for use in an RFID tag and an RFID tag reader/writer, which operates stable even if brought close to a metallic object and suitable for mass-production, and a board mounted with the magnetic antenna. The magnetic antenna has a coil with ... | 04/17/2012 |
| 8154465 | Portal antenna A portal antenna (10) particularly suited for enabling low frequency RFID devices carried by animals to be read when animals are proceeding through a stock race or the like. The portal antenna includes a portal structure (11) through which an animal ca... | 04/10/2012 |
| 8125401 | Antenna device An antenna device having a magnetic core to be surface-mounted on a circuit substrate includes a pair of coil portions spaced apart from each other at a predetermined interval. The coil portions are connected by a connecting conductor. An end of the magnetic core in... | 02/28/2012 |
| 8111205 | Mast clamp current probe (MCCP) insertion loss determining methods and systems Methods and systems for determining insertion loss for a mast clamp current probe (MCCP) coupled to a monopole antenna are disclosed. An exemplary method includes determining a first power radiated by the monopole antenna across a first range of frequencies while dr... | 02/07/2012 |
| 8106845 | Omnidirectional flat antenna and method of production The inventive antenna comprises a planar substrate carrying as first winding whose axis is arranged in a parallel position to the plane of the substrate. Said antenna also comprises at least one second winding, whose axis is arranged in a parallel position to the pl... | 01/31/2012 |
| 8094083 | Multi-band tree antenna A multi-band antenna comprising a tree and a plurality of current probes coupled around the tree. Each current probe is designed to receive and transmit in a substantially different frequency band than the other current probes. The current probes are positioned on t... | 01/10/2012 |
| 8077105 | Directive bar-type antenna Disclosed is a directional bar-type antenna which comprising a plurality of bar-shaped antenna elements including a core and a coil wound around the core. The first bar-shaped antenna element is disposed at a position of a mirror image of the second bar-shaped anten... | 12/13/2011 |
| 8077106 | Receiving antenna coil The present invention provides a receiving antenna coil capable of realizing both improvement in the reception characteristic and miniaturization. In a receiving antenna coil, at least one of an X-axis winding core part and a Y-axis winding core part is formed in a ... | 12/13/2011 |
| 8072387 | Magnetic antenna and board mounted with the same There is provided a magnetic antenna, suitable for use in an RFID tag and an RFID tag reader/writer, which operates stable even if brought close to a metallic object and suitable for mass-production, and a board mounted with the magnetic antenna. The magnetic antenn... | 12/06/2011 |
| 8063844 | Omnidirectional antenna system An omnidirectional antenna system. Implementations may include an antenna having a wire loop and a single ferrite rod loop. The single ferrite rod loop may be oriented substantially parallel to a plane formed by the wire loop. The single ferrite rod loop may include... | 11/22/2011 |
| 8059053 | Antenna and radio-wave receiving device provided with antenna An antenna that can ensure a sufficient radio receiving level and a radio-wave receiving device on which the antenna is equipped are provided. The antenna includes a columnar magnetic core formed by a ferromagnetic body, a coil portion wound around the magnetic core... | 11/15/2011 |
| 8054235 | Active magnetic antenna with ferrite core An active magnetic antenna with a ferrite core having a winding is provided, forming a frame magnetic antenna which is connected with a low-noise transistor, to amplify a signal of the frame magnetic antenna. A base of the transistor is connected directly to one con... | 11/08/2011 |
| 8044875 | Coil parts A coil part used in a antenna coil has a cross shape core that includes: a first winding frame part extending a first direction and being provided with a coil, and a second winding frame part extending a direction crossing the first direction and being provided with... | 10/25/2011 |
| 8031127 | Semiconductor memory module incorporating antenna The semiconductor memory module incorporating antenna includes a wiring board (11) having a connection terminal (17) connected with a control semiconductor element (16) and arranged at a position exposed to the surface of an outer case (15 | 10/04/2011 |
| 7999751 | Magnetically coupling near-field RFID antenna An improved magnetically coupling near-field RFID antenna is embodied as a magnetic H-field coupler, and the near-field RFID antenna is embodied as a looped and/or frame-shaped antenna. The looped and/or frame-shaped antenna comprises a looped or frame-shaped strip ... | 08/16/2011 |
| 7990331 | Antenna coil to be mounted on a circuit board and antenna device In an antenna coil including a first magnetic core, a second magnetic core, and a flexible board, coil conductors are provided on a surface of the flexible board. By winding the flexible board around the first magnetic core and the second magnetic core, a first coil... | 08/02/2011 |
| 7903041 | Magnetic antenna apparatus and method for generating a magnetic field The present invention relates to a magnetic transmit antenna apparatus comprising: a toroidal core transformer having a primary winding inductively coupled to a secondary winding supplying a low voltage and high current to a magnetic transmit antenna wherein the mag... | 03/08/2011 |
| 7876281 | Magnetic material, magnetic sheet, and portable electronic apparatus A magnetic material used for an antenna module of an RFID (radio frequency identification) system that uses a communication frequency of 13.56 MHz, includes an Fe alloy magnetic material containing Fe as a primary component, and Si and Al added thereto, and phosphor... | 01/25/2011 |
| 7830324 | Electronic entity having a magnetic antenna An electronic entity includes an electronic circuit (21) having at least one first terminal (22) and a second terminal (24) to which an antenna is connected. The antenna includes a conducting element (26) electrically connected to the fir... | 11/09/2010 |
| 7825869 | Miniature transponders Systems and methods are disclosed for miniature transponders having capsule enclosure housings including a magnetic antenna core, such as a ferrite core, with a shaped form to provide space for an integrated circuit also included within the capsule enclosure housing... | 11/02/2010 |
| 7812777 | Antenna coil to be mounted on a circuit board and antenna device In an antenna coil including a first magnetic core, a second magnetic core, and a flexible board, coil conductors are provided on a surface of the flexible board. By winding the flexible board around the first magnetic core and the second magnetic core, a first coil... | 10/12/2010 |
| 7796091 | Three-axis antenna, antenna unit and receiving device To attain 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 pair of... | 09/14/2010 |
| 7755558 | Antenna coil The size of an antenna coil is reduced, and it is possible to prevent a lowering of the reception sensitivity due to a difference of the arrangement position of the antenna coil. On a winding frame of a ferrite core, a first coil and a second coil are wound in such ... | 07/13/2010 |
| 7742008 | Multipole antennae for logging-while-drilling resistivity measurements A multipole antenna for conducting logging-while-drilling (LWD), includes a wire for one of producing and receiving an electromagnetic field, the wire having at least one winding for providing a magnetic moment in a first portion of the antenna that is opposite to t... | 06/22/2010 |
| 7737905 | Broadband ferrite loaded loop antenna A ferrite-loaded broadband loop antenna having nearly comparable transmit/receive characteristics is disclosed. The antenna contains a low loss ferrite core having a width-to-height ratio of approximately 24 and a depth-to-height ratio of approximately 6, and an ant... | 06/15/2010 |
| 7733283 | Antenna Device An antenna device includes: a winding component having an approximately cylindrical shaped winding shaft portion and a flange portion disposed to project outside the winding shaft portion in at least one end portion of both end portions in an axial direction of the ... | 06/08/2010 |
| 7724199 | Antenna device and radio wave controlled timepiece An antenna device includes an antenna for receiving a time information radio wave, and an antenna support member. In the antenna, a coil is wound around a center portion of a core. In the support member, a non-magnetic portion supports two magnetic portions independ... | 05/25/2010 |
| 7710341 | Portable electronic device A portable electronic device includes a circuit board and an antenna coil installed on the circuit board. The antenna coil includes a magnetic core and a coil wound at either side of an unwound portion. The winding direction of the coil is changed at either side of ... | 05/04/2010 |
| 7688270 | Near field communication antenna and mobile device An NFC antenna (“NFC” stands for “near field communication”) includes a ferrite antenna including a primary antenna coil wound on a ferrite core of the ferrite antenna; a loop coil provided in a position where components of a magnetic flux on a non-communica... | 03/30/2010 |
| 7642983 | High efficiency ferrite antenna system An automatic tuning procedure can be used to allow a small, high efficiency ferrite antenna assembly to be used in various FM frequency based devices. The ferrite antenna can take the form of a rod or flat disk, for example, which can use a pick-up coil and tuning c... | 01/05/2010 |
| 7592964 | Shielded coil for inductive wireless applications The present invention relates to a surface mounted coil (200) for wireless communication. The coil (200) comprises a wire (202) wounded about a core (204) thereby establishing a plurality of windings and having its ends terminated on moun... | 09/22/2009 |
| 7573431 | Broadband polarized antenna including magnetodielectric material, isoimpedance loading, and associated methods The broadband small antenna has equal magnetic electric proportions, circular polarization, and an isoimpedance magnetodielectric (μr≡∈r) shell for controlled wave expansion. The shell is a radome without bandwidth limitation, with reflect... | 08/11/2009 |
| 7557766 | Portable remote controller for tire status detector A portable remote controller for a tire status detector, includes a portable casing, a transmission circuit disposed in the casing, a low-pass filter disposed at an output side of the transmission circuit for permitting a signal with a frequency of not more than the... | 07/07/2009 |
| 7548213 | Game chip The present invention relates to the technology of recognizing and reading each game chip although game chips are stacked. The present invention is a game chip storing data readable by a reader/writer having an antenna which emits an electromagnetic wave and availab... | 06/16/2009 |
| 7545336 | Card type wireless device, antenna coil, and method for manufacturing communication module An antenna coil includes: an air-core type flat coil body; and a coil support member disposed between the coil body and a substrate so that the coil body is supported on a surface of the substrate. The thickness of the coil body is smaller than a radius of a circle,... | 06/09/2009 |
| 7545337 | Antenna arrangement for inductive power transmission and use of the antenna arrangement An antenna arrangement for the inductive transmission of energy has magnetic cores made of a composite material with amorphous or nanocrystalline flakes and a moulded plastic material, so that the magnetic properties suitable for effective energy transmission can be... | 06/09/2009 |
| 7515112 | Antenna device and radio wave controlled timepiece An antenna device includes an antenna for receiving a time information radio wave, and an antenna support member. In the antenna, a coil is wound around a center portion of a core. In the support member, a non-magnetic portion supports two magnetic portions independ... | 04/07/2009 |
| 7511679 | Antenna, and radio timepiece using the same, keyless entry system, and RFID system A magnetic sensor-type antenna comprising a magnetic core and a coil wound around the magnetic core for receiving electromagnetic waves, which is disposed in a housing such that the end portion of the magnetic core is bent away from the housing or a metal portion of... | 03/31/2009 |