Patent US5854480A successfully refreshed from Google Patents.
US5854480A
Expired / Lapsed
US
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Tag with IC capacitively coupled to antenna
Assignee: Oki Electric Industry Co Ltd
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Filing: 1996-07-11
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Granted: 1998-12-29
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Expires: 2016-07-11
Abstract
Abstract A tag has an integrated circuit (IC), electrode plates included in the IC, an electrically insulating film covering the electrode plates, antenna terminals each facing one of the electrode plates with the insulating film sandwiched between, antennas each being connected to one of the antenna terminals, and packings.
Inventors
- 👤 Hiroyuki Noto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:56
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/2208; H01Q1/2225; G; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/077; G06K19/07737; G06K19/07739; G06K19/07749; G06K19/07758; G06K19/07773; G06K19/07786; G06K19/07788; H01Q23/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
73 words
A tag device having a generally flat IC (Integrated Circuit) device including a response circuit for storing information and for outputting a signal based on said information, and an antenna, said tag device comprising: a generally flat electrode plate positioned on a major surface of said IC device and connected to said response circuit; and a generally flat antenna terminal connected to said antenna and facing said electrode plate at a preselected distance.
Claim 2
Dependent Claim
73 words
A tag device having a generally flat IC (Integrated Circuit) device including a response circuit for storing information and for outputting a signal based on said information, and an antenna, said tag device comprising: a generally flat electrode plate positioned on a major surface of said IC device and connected to said response circuit; and a generally flat antenna terminal connected to said antenna and facing said electrode plate at a preselected distance.
Claim 3
Dependent Claim
24 words
A tag device in accordance with claim 1, wherein said electrode plate comprises one of an electrically conductive semiconductor layer and an aluminum layer.
Claim 4
Dependent Claim
24 words
A tag device in accordance with claim 1, wherein said antenna terminal is formed of a same material as and integrally with said antenna.
Claim 5
Dependent Claim
21 words
A tag device in accordance with claim 1, wherein said antenna terminal is formed of one of aluminum, copper, and tungsten.
Claim 6
Dependent Claim
28 words
A tag device in accordance with claim 1, further comprising an electrically insulating film intervening between said electrode plate and said antenna terminal and covering said electrode plate.
Claim 7
Dependent Claim
28 words
A tag device in accordance with claim 5, wherein said insulting film is formed of at least one of a silicon oxide film and a silicon nitride film.
Claim 8
Dependent Claim
22 words
A tag device in accordance with claim 1, further comprising a dielectric layer intervening between said electrode plate and said antenna terminal.
Claim 9
Dependent Claim
54 words
A tag device in accordance with claim 1, wherein said electrode plate is used to input a signal to said response circuit while said antenna is used to receive an electromagnetic wave, and wherein the signal received by said antenna is routed through said antenna terminal and said electrode plate to said response circuit.
Claim 10
Dependent Claim
55 words
A tag device in accordance with claim 1, wherein said electrode plate is used to output a signal fed from said response circuit while said antenna is used to transmit an electromagnetic wave, and wherein the signal output from said response circuit via said electrode plate is routed through said antenna terminal to said antenna.
Claim 11
Dependent Claim
88 words
A tag device in accordance with claim 1, wherein said electrode plate is used to selectively input a signal to said response circuit or output a signal fed from said response circuit while said antenna is used to selectively transmit or receive an electromagnetic wave, wherein a signal received by said antenna is routed through said antenna terminal and said electrode plate to said response circuit, and wherein a signal output from said response circuit via said electrode plate is routed through said antenna terminal to said antenna.
Claim 12
Dependent Claim
65 words
A tag device in accordance with claim 1, wherein said electrode plate comprises a first and a second electrode plate respectively formed on opposite major surfaces of a substrate of said IC device, and wherein said antenna terminal comprises a first antenna terminal facing said first electrode plate at a preselected distance, and a second antenna terminal facing said second terminal at a preselected distance.
Claim 13
Dependent Claim
37 words
A tag device in accordance with claim 1, wherein said response circuit transmits, in response to an electromagnetic wave received from an interrogator, the signal based on the information stored in said response circuit via said antenna.
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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) | 2001-12-28 | 2002-06-29 | 2002-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-12-28 | 2006-06-29 | 2006-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-12-28 | 2010-06-29 | 2010-12-29 | $7700.00 | Window Closed / Lapsed |