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. 09, 2013
Filed:
Jun. 04, 2010
Yasushi Takagi, Gunma, JP;
Yasushi Takagi, Gunma, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
Provided is a key switch structure wherein a membrane sheet () having a movable contact point () and a stationary contact point () is provided between a housing (), which supports a key top () so as to allow the key top to be pushed downward and a base plate (). The movable contact point () is brought into contact with the stationary contact point () by a downward push to the key top (), so that a switch is closed. In the key switch structure, the inside of a device's main body is completely shielded from outside air, and water is completely prevented from entering the inside of the device's main body. A plate () provided with a plurality of attachment holes () corresponding to fixing pins () of the housing () is provided on the membrane sheet (), so that the fixing pins () are secured in the attachment holes () of the plate ().