US6927738B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for a communication device
Assignee: Hanex Co Ltd
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Filing: 2002-01-10
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Granted: 2005-08-09
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Expires: 2022-01-10
Abstract
Abstract This invention aims to provide a communication device, installation structure for the communication device, a method of manufacturing the communication device, and a method of communication with the communication device in which the communication device is able to exceedingly restain a conductive material from attenuating magnetic flux and to expand communication distance even when the communication device is attached to a conductive member e.g., metal, in a closely contacting manner. This invention has a sheet-like amorphous magnetic material being arranged in a manner extending from a magnetic flux generating portion of a concentric disk-shaped antenna coil of an RFID tag serving as the communication device to an outer area of the antenna coil.
Inventors
- 👤 Fujio Senba
- 👤 Nakamaro Hyodo
- 👤 Tetsushi Sakane
- 👤 Jun Fujii
- 👤 Tomoki Uchiyama
- 👤 Shigeru Kida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:43
CPC Classifications
H; H01; H01Q; H01Q7/00; H01Q7/06; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/2208; H01Q1/2225; G; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/0723; G06K19/077; G06K19/07749; G06K19/07771; H01Q7/08
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
131 words
A communication device attached to a conductive installing object comprising: an antenna coil formed into a flat concentric disk shape; a sender/receiver circuit; a memory circuit; and a control circuit for non-contact electromagnetic wave communication with an exterior of the communication device by using the antenna coil, wherein a single sheet-like magnetic material with a high specific magnetic permeability is arranged on only one side of the antenna coil, the side of the antenna coil mounted on the conductive installing object so that one end of the sheet-like magnetic material is located at an intermediary portion between a diametral center of the antenna coil and an inner peripheral face of the antenna coil and the other end of the sheet-like magnetic material is located at an exterior of said antenna coil.
Claim 2
Dependent Claim
131 words
A communication device attached to a conductive installing object comprising: an antenna coil formed into a flat concentric disk shape; a sender/receiver circuit; a memory circuit; and a control circuit for non-contact electromagnetic wave communication with an exterior of the communication device by using the antenna coil, wherein a single sheet-like magnetic material with a high specific magnetic permeability is arranged on only one side of the antenna coil, the side of the antenna coil mounted on the conductive installing object so that one end of the sheet-like magnetic material is located at an intermediary portion between a diametral center of the antenna coil and an inner peripheral face of the antenna coil and the other end of the sheet-like magnetic material is located at an exterior of said antenna coil.
Claim 3
Dependent Claim
27 words
The communication device according to claim 1 , wherein the sheet-like magnetic material is a sheet of an amorphous magnetic material with a high specific magnetic permeability.
Claim 4
Dependent Claim
21 words
The communication device according to claim 1 , wherein the communication device is an RFID tag or a read/write device thereof.
Claim 5
Dependent Claim
42 words
An installation structure for the communication device according to claim 1 , wherein the communication device is installed on a surface of a conductive installing object or installed inside an installment groove portion arranged at the surface of the conductive installing object.
Claim 6
Dependent Claim
65 words
The communication device according to claim 1 , wherein the communication device is housed in a conductive container that is divided into at least two parts, and a flux leak path for leaking electromagnetic wave between the antenna coil and an exterior of the container is formed between a face of one divided part of the container and a face of another divided part thereof.
Claim 7
Dependent Claim
40 words
The communication device according to claim 5 , the container being separable into two portions and having a hinge mechanism arranged on one end portion of the container for allowing the two portions to be openable relative to each other.
Claim 8
Dependent Claim
20 words
The communication device according to claim 5 , wherein the container is formed by overlapping and joining two sheet-like members.
Claim 9
Dependent Claim
20 words
The communication device according to claim 5 , wherein the communication device is a metal nameplate capable of non-contact communication.
Claim 10
Dependent Claim
59 words
The communication device according to claim 1 , wherein the sheet-like magnetic material extends from the one end of the sheet-like magnetic material away from the diametral center of the antenna coil towards the other end of the sheet-like magnetic material located at the exterior of the antenna coil without passing through the diametral center of the antenna coil.
Claim 11
Dependent Claim
136 words
A communication device comprising an antenna coil, a sender/receiver circuit, a memory circuit, and a control circuit for non-contact electromagnetic wave communication with an exterior of the communication device by using the antenna coil, wherein the antenna coil is formed into a flat concentric disk shape, wherein the antenna coil is arranged between a primary sheet-like magnetic material with a high specific magnetic permeability and a secondary sheet-like magnetic material with a high specific magnetic permeability, and wherein the primary sheet-like magnetic material and the secondary sheet-like magnetic material are extended along the antenna coil from a center portion of the antenna coil to an outer area in opposite directions relative to each other, and wherein the primary sheet-like maanetic material and the secondary sheet-like magnetic material overlap at a center portion of the antenna coil.
Claim 12
Dependent Claim
136 words
A communication device comprising an antenna coil, a sender/receiver circuit, a memory circuit, and a control circuit for non-contact electromagnetic wave communication with an exterior of the communication device by using the antenna coil, wherein the antenna coil is formed into a flat concentric disk shape, wherein the antenna coil is arranged between a primary sheet-like magnetic material with a high specific magnetic permeability and a secondary sheet-like magnetic material with a high specific magnetic permeability, and wherein the primary sheet-like magnetic material and the secondary sheet-like magnetic material are extended along the antenna coil from a center portion of the antenna coil to an outer area in opposite directions relative to each other, and wherein the primary sheet-like maanetic material and the secondary sheet-like magnetic material overlap at a center portion of the antenna coil.
Claim 13
Dependent Claim
27 words
The communication device according to claim 10 , wherein the sheet-like magnetic material is a sheet of an amorphous magnetic material with a high specific magnetic permeability.
Claim 14
Dependent Claim
49 words
The communication device according to claim 10 , wherein the antenna coil, the sender/receiver circuit, the memory circuit, and the control circuit are housed inside a non-conductive sealed container, and wherein the primary sheet-like magnetic material and the secondary sheet-like magnetic material are arranged having the sealed container therebetween.
Claim 15
Dependent Claim
92 words
The communication device according to claim 10 , wherein the communication device is housed in a conductive container that can be divided to at least two parts, wherein a flux leak path for leaking electromagnetic wave between the antenna coil and an exterior of the communication device is formed at the divided portion of the container, and wherein the first sheet-like magnetic material and second sheet-like magnetic material are extended along the antenna coil from the center portion thereof in respective directions opposite to each other to the flux leak path portion.
Claim 16
Dependent Claim
47 words
The communication device according to claim 13 , wherein the antenna coil, the sender/receiver circuit, the memory circuit, and the control circuit are contained in a non-conductive sealing container, and wherein the first sheet-like magnetic material and second sheet-like magnetic material are arranged via the sealing container.
Claim 17
Independent Claim
230 words
A method of manufacturing a communication device comprising an antenna coil, a sender/receiver circuit, a memory circuit, and a control circuit for non-contact electromagnetic wave communication with an interior of the communication device by using the antenna coil, the method comprising: forming the antenna coil into a flat concentric disk shape, housing the antenna coil, the sender/receiver circuit, the memory circuit, and the control circuit inside a non-conductive sealed container, plurally arranging the sealed container in a prescribed interval along a longitudinal direction of a thin long primary sheet material, and plurally arranging a sheet-like magnetic material with a high magnetic permeability in a prescribed interval along a longitudinal direction of a thin long secondary sheet material, wherein each container body and each sheet-like magnetic material are postionally adjusted relative to each other, in which the sheet-like magnetic materials is positionally adjusted to be arranged on one side of the antenna coil extending along the antenna coil from an intermediary portion between a diametral center of the antenna coil and an inner peripheral side to an outer area of one of the sides of the antenna coil in a case where the antenna coil has a concentric disk shape wherein the primary sheet material and the secondary sheet material are joined to each other, and wherein each combined body of the container body and the sheet-like magnetic material is divided.
Claim 18
Independent Claim
230 words
A method of manufacturing a communication device comprising an antenna coil, a sender/receiver circuit, a memory circuit, and a control circuit for non-contact electromagnetic wave communication with an interior of the communication device by using the antenna coil, the method comprising: forming the antenna coil into a flat concentric disk shape, housing the antenna coil, the sender/receiver circuit, the memory circuit, and the control circuit inside a non-conductive sealed container, plurally arranging the sealed container in a prescribed interval along a longitudinal direction of a thin long primary sheet material, and plurally arranging a sheet-like magnetic material with a high magnetic permeability in a prescribed interval along a longitudinal direction of a thin long secondary sheet material, wherein each container body and each sheet-like magnetic material are postionally adjusted relative to each other, in which the sheet-like magnetic materials is positionally adjusted to be arranged on one side of the antenna coil extending along the antenna coil from an intermediary portion between a diametral center of the antenna coil and an inner peripheral side to an outer area of one of the sides of the antenna coil in a case where the antenna coil has a concentric disk shape wherein the primary sheet material and the secondary sheet material are joined to each other, and wherein each combined body of the container body and the sheet-like magnetic material is divided.
Claim 19
Dependent Claim
66 words
The method of manufacturing a communication device according to claim 15 , wherein the primary sheet material and the secondary sheet material are both conductive materials, wherein the sheet materials have a magnetic flux leakage path between the external and the internal formed at a bonding rim portion thereof, and wherein the sheet-like magnetic material is extended to a portion of the magnetic flux leakage path.
Claim 20
Dependent Claim
41 words
The method of manufacturing a communication device according to claim 15 , the sheet-like magnetic material is formed upon the secondary sheet material by mixing a powder of an amorphous alloy into a resin binder with a high density, and printing.
Claim 21
Independent Claim
138 words
A method of communication with a communication device attached to a conductive installing object comprising an antenna coil, a sender/receiver circuit, a memory circuit, and a control circuit for non-contact electromagnetic wave communication with an interior of the communication device by using the antenna coil, the method comprising: forming the antenna coil into a flat concentric disk, and arranging a single sheet-like magnetic material with a high specific magnetic permeability on only one side of the antenna coil; mounting the side of the antenna coil on the conductive installing object so that one end of the sheet-like magnetic material is located at an intermediary portion between a diametral center of the antenna coil and an inner peripheral face of the antenna coil and the other end of the sheet-like magnetic material extends to a flux leak path portion.
Claim 22
Independent Claim
138 words
A method of communication with a communication device attached to a conductive installing object comprising an antenna coil, a sender/receiver circuit, a memory circuit, and a control circuit for non-contact electromagnetic wave communication with an interior of the communication device by using the antenna coil, the method comprising: forming the antenna coil into a flat concentric disk, and arranging a single sheet-like magnetic material with a high specific magnetic permeability on only one side of the antenna coil; mounting the side of the antenna coil on the conductive installing object so that one end of the sheet-like magnetic material is located at an intermediary portion between a diametral center of the antenna coil and an inner peripheral face of the antenna coil and the other end of the sheet-like magnetic material extends to a flux leak path portion.
Claim 23
Dependent Claim
59 words
The method of communication with a communication device according to claim 18 , wherein arranging the sheet-like magnetic material comprises: extending the sheet-like magnetic material from the one end of the sheet-like magnetic material away from the diametral center of the antenna coil to the flux leak path portion without passing through the diametral center of the antenna coil.
Claim 24
Independent Claim
170 words
A method of communication with a communication device comprising an antenna coil, a sender/receiver circuit, a memory circuit, and a control circuit for non-contact electromagnetic wave communication with an exterior of the communication device by using the antenna coil, the method comprising: forming the antenna coil into a flat concentric disk shape; and arranging the antenna coil between a primary sheet-like magnetic material with a high specific magnetic permeability and a secondary sheet-like magnetic material with a high specific magnetic permeability, wherein the primary sheet-like magnetic material and the secondary sheet-like magnetic material are extended along the antenna coil from a center portion of the antenna coil to an outer area in opposite directions relative to each other, wherein the primary sheet-like magnetic material and the secondary sheet-like magnetic material are arranged overlapping each other at a center portion of the antenna coil, and wherein non-contact electromagnetic wave communication with the external is performed in a state where directivity of the antenna coil is heightened by the sheet-like magnetic material.
Claim 25
Independent Claim
170 words
A method of communication with a communication device comprising an antenna coil, a sender/receiver circuit, a memory circuit, and a control circuit for non-contact electromagnetic wave communication with an exterior of the communication device by using the antenna coil, the method comprising: forming the antenna coil into a flat concentric disk shape; and arranging the antenna coil between a primary sheet-like magnetic material with a high specific magnetic permeability and a secondary sheet-like magnetic material with a high specific magnetic permeability, wherein the primary sheet-like magnetic material and the secondary sheet-like magnetic material are extended along the antenna coil from a center portion of the antenna coil to an outer area in opposite directions relative to each other, wherein the primary sheet-like magnetic material and the secondary sheet-like magnetic material are arranged overlapping each other at a center portion of the antenna coil, and wherein non-contact electromagnetic wave communication with the external is performed in a state where directivity of the antenna coil is heightened by the sheet-like magnetic material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-08-08 | 2009-02-07 | 2009-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-08-08 | 2013-02-07 | 2013-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-08-08 | 2017-02-07 | 2017-08-09 | $7700.00 | Window Closed / Lapsed |