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:
Jul. 04, 2006
Filed:
May. 27, 2003
Shuichi Ono, Tokyo, JP;
Shuichi Ono, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A waterproof structure for an electronic apparatus of the present invention includes keybuttons positioned such that their ends appear via holes formed in the casing of the apparatus. A circuit board is loaded with switches configured to selectively open or close when the keybuttons associated therewith are operated. A sheet member is formed of an elastic material and intervenes between the keybuttons and the circuit board. The sheet member includes, at least in its peripheral portion thereof, a seal portion for preventing water or similar liquid from entering the apparatus and reaching the surface of the circuit board. When the sheet member is pressed between the casing and the circuit board, the seal portion is at least partly pressed against the inside surface of the casing while being subject to a bending load.