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. 06, 2004
Filed:
Mar. 20, 2002
Applicant:
Inventors:
Hideo Kikuchi, Tokyo, JP;
Toshiyuki Kaneko, Tokyo, JP;
Hideki Kikuchi, Tokyo, JP;
Kazuhiro Kinoshita, Tokyo, JP;
Kiyohiko Kaiya, Tokyo, JP;
Yutaka Akimoto, Tokyo, JP;
Assignee:
NEC Toppan Circuit Solutions, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01P 3/06 ; H01P 3/08 ;
U.S. Cl.
CPC ...
H01P 3/06 ; H01P 3/08 ;
Abstract
Occurrence of EMI is reduced without a sharp increase of the manufacturing cost by suppressing a common mode current stably. There is provided a disclosed printed-circuit board being adapted such that a width of an outer edge section of a T-shaped pattern is widened so as to surround a recessed section with a frame-shaped additional electric conductor by electrically connecting the frame-shaped additional electric conductor with the T-shaped pattern making up a ground pattern so as to close the recessed section.