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:
Nov. 13, 2007
Filed:
Jul. 20, 2004
Applicants:
Hiroyuki Kimata, Tokyo, JP;
Yasuhiro Yamanaka, Tokyo, JP;
Inventors:
Hiroyuki Kimata, Tokyo, JP;
Yasuhiro Yamanaka, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Chiyoda-Ku, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 9/00 (2006.01); H05K 3/46 (2006.01);
U.S. Cl.
CPC ...
Abstract
A circuit board that requires electromagnetic shielding is enclosed in a cavity formed between a metal case and a base substrate. A ground plane, which is electrically conductive, is embedded in each of the base substrate and the circuit board. The metal case is electrically connected to the ground planes in both the base substrate and the circuit board.