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. 15, 1999
Filed:
Sep. 11, 1997
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Alpha Giken, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428448 ; 4273935 ; 4274121 ; 428451 ;
Abstract
A keypad is disclosed, comprising a structure in which a protective layer made of a 2-cyanoacrylate cured product is provided in a protuberant state on a display pattern formed on a touch base of a silicone rubber-made keypad preferably via a primer coated layer. A process for producing the keypad being also disclosed wherein the protective layer having a high adhesion, hardly generating cracks even by keying operations in a number of times and hardly causing yellowing with a lapse of time can be provided in the display pattern of the keypad made of silicon rubber.