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:
Jun. 22, 2004
Filed:
Jul. 05, 2001
Applicant:
Inventor:
Shohei Takeda, Ibaraki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 9/00 ;
U.S. Cl.
CPC ...
H05K 9/00 ;
Abstract
An emitted-radio-wave shield capable of preventing the leakage of emitted radio waves from a circuit board includes a shield box, which houses the circuit board, and a shield plate that is easy to attach and remove in order to access the circuit board. A shield member, which is disposed at a joint between the shield box and the shield plate and is electrically connected with the shield box, shields emitted radio waves from the circuit board in a state in which the shield plate is secured to the shield box. The shield plate is formed to have a plurality of protrusions, which project toward the shield member, at a part thereof that contacts the shield member.