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:
Mar. 12, 2002
Filed:
Jan. 26, 2000
Applicant:
Inventor:
Mitsuru Kuroda, Shizuoka, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 1/370 ;
U.S. Cl.
CPC ...
H01H 1/370 ;
Abstract
A button structure for an electronic apparatus includes buttons each facing a particular switch device arranged on a printed circuit board with the intermediary of a respective Belleville spring that snaps through when pressed. The button structure reduces an annoying click sound and minimizes a stroke required of each key top member to thereby promote easy operation. Key top members and a flat base with button bodies formed thereon are separable from each other in order to obviate wastes on a production line as far as possible while reducing cost. In addition, the button structure is easy to recycle.