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:
May. 26, 2009
Filed:
Jul. 02, 2007
Toshikazu Yoshioka, Tokyo, JP;
Toshikazu Yoshioka, Tokyo, JP;
Polymatech Co., Ltd., Tokyo, JP;
Abstract
Provided is a key sheet in which fixation members such as key tops can be firmly fixed to a base sheet. The back surfaces of the key tops are fixed to a film sheet without involving any gaps by means of adhesion layersstacked on the entire back surfaces of the key tops. Thus, fingernails or the like are not easily allowed to get between the key tops and the film sheet, making it possible to prevent the key tops from being unstuck from the film sheet. Further, in the key sheet, the film sheet and a base sheet are integrated with each other, so the key tops can be firmly fixed to the base sheet through an intermediation of the film sheet, making it possible to prevent the key tops from being detached by fingernails or the like at the time of depressing operation.