Method of producing electrical resonant circuits, specifically resonance labels

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5170544
SERIAL NO

07688273

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In order to produce resonance labels a coil having the shape of a spiral and a first capacitor surface located adjacent the innermost winding of the spiral and, furthermore, a supplementary surface adjacent the outer end of the spiral are produced at one side only of a supporting foil by an etching method from an aluminum foil arranged on the supporting foil. An aluminum foil strip is sealed onto the other side of the supporting foil at a superimposed position relative to the first capacitor surface, a few windings of the spiral and the supplementary surface to form the second capacitor surface. After establishing an electrical connection between this strip and the supplementary surface at the other side an electrical resonant circuit is produced. Due to the sealed on aluminum foil strip the etching procedure is reduced to only one side with the advantage that considerably less poisonous etching sludge is thus produced.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
Kobe Properties, Ltd.ISLE OF MAN4

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pichl, Fritz Kilchberg, CH 6 140

Cited Art Landscape

Patent Info (Count) # Cites Year
 
I. D. ENGINEERING, INC., I. D. (1)
* 4369557 Process for fabricating resonant tag circuit constructions 141 1980
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
KABUSHIKI KAISHA MIYAKE (1)
* 6214444 Circuit-like metallic foil sheet and the like and processing for producing them 31 1997
 
AMEI Technologies, Inc. (2)
* 5351389 Method for fabricating a contoured triangular transducer system 32 1992
* 5401233 Contoured triangular transducer system for PEMF therapy 33 1994
 
CHECKPOINT SYSTEMS, INC. (3)
6988666 Security tag and process for making same 24 2002
* 2003/0051,806 Security tag and process for making same 5 2002
* 2006/0071,083 Security tag and process for making same 6 2005
 
NOVATRON ELECTRONICS (HANGZHOU) CO., LTD. (2)
* 7256738 Resonant circuits 12 2003
* 2004/0025,324 Process for producing resonant tag 0 2003
* Cited By Examiner