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:
Oct. 10, 2006
Filed:
Sep. 08, 2005
Dean-kuo Liu, Taoyuan, TW;
Lu-chin Wu, Taipei, TW;
Dean-Kuo Liu, Taoyuan, TW;
Lu-Chin Wu, Taipei, TW;
Speed Tech Corp., Taoyuan Hsien, TW;
Abstract
A manufacturing method for a keypad is provided. First, a patterned thin plastic sheet, which includes a first surface and a second surface, is provided. A plurality of touch buttons which can be operated independently are included. The touch buttons have a plurality of hollow patterned structures on them. Later, a metal layer is formed on the first surface of the patterned thin plastic sheet and on the sidewalls of the hollow patterned structures. Thereafter, an adhesion enhancing layer is added onto to the second surface of the patterned thin plastic sheet. Later, a colored layer is formed on the adhesion enhancing layer. Finally, a protruding point layer is formed on the adhesion enhancing layer, and is covering the colored layer. The protruding point layer has a plurality of protruding points with positions corresponding to the touch buttons respectively.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile