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. 13, 2004
Filed:
Mar. 27, 2001
Applicant:
Inventor:
Masao Yoshida, Saitama, JP;
Assignee:
Pioneer Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 3/300 ;
U.S. Cl.
CPC ...
F21V 3/300 ;
Abstract
In a button for an electronic device, a red numeral pattern , a green kana pattern and a black English character pattern are printed on a key top as plural kinds of patterns. By selectively causing a red LED and a green LED that function as a light source of a backlight to emit a light, red, green and orange lighting colors of the backlight are obtained. According to the color of the pattern used according to a mode, the lighting color of the backlight is switched.