The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 1992
Filed:
Dec. 27, 1990
Hideaki Imaichi, Chigasaki, JP;
Takeshi Matsumoto, Chigasaki, JP;
Yuji Suzuki, Chigasaki, JP;
Koichi Himura, Chigasaki, JP;
Tadayoshi Haneda, Chigasaki, JP;
Tokai Electronics Co., Ltd., , JP;
Abstract
A resonant tag is manufactured in the manner described below: a conductive thin film is formed to a predetermined thickness on two surfaces of an insulating thin film. Thereafter, a conductive pattern, composed of an inductor element and a capacitor element corresponding to a resonant frequency of a resonant circuit, is printed on a surface of one of the conductive thin films, and a conductive pattern, composed of a capacitor element corresponding to the resonant frequency of the resonant circuit, is printed on a surface of the other insulating thin film at a position which faces the capacitor element formed on one of the conductive thin films using an ink which resists etching. A non-printed portion of the conductive thin films is removed by etching to form a resonant circuit pattern. Thereafter, a portion of the insulating thin film, which corresonds to the capacitor element pattern, is thinned to a desired thickness by pressing a heating/pressing member heated to a predetermined temperature against that portion under a predetermined pressure for a predetermined period of time.