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:
Feb. 18, 2003
Filed:
Sep. 24, 2001
Applicant:
Inventors:
Kenichi Kano, Miyagi, JP;
Kimitaka Nishimura, Miyagi, JP;
Kyoko Obata, Miyagi, JP;
Takao Kudo, Miyagi, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 1/00 ; G06K 1/9067 ; B32B 3/114 ;
U.S. Cl.
CPC ...
H05K 1/00 ; G06K 1/9067 ; B32B 3/114 ;
Abstract
The swelling in the surface of an IC card due to occluded pneumatic foams is eliminated by providing a novel IC card, which is comprised of a substrate mounting an IC chip and an antenna circuit, and wherein the substrate is sandwiched at least between a pair of films, and the pair of the films are provided with an uneven pattern made of small grooves formed at least on one surface thereof opposing the substrate.