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. 06, 2007
Filed:
Aug. 25, 2003
Masami Makino, Mizuho, JP;
Kazuhito Fukumasu, Settsu, JP;
Masami Makino, Mizuho, JP;
Kazuhito Fukumasu, Settsu, JP;
Sanyo Electric Co. Ltd., Moriguchi, JP;
Sanyo Telecommunications Co. Ltd., Daito, JP;
Abstract
The invention provides a key input device comprising a plurality of key topsarranged on a surface of a main body case, each of the key topshaving a bodyof transparent resin, the key bodybeing provided with a light blocking filmformed over a front surface thereof, the light blocking filmbeing partly cut out to form a light transmitting patternrepresenting a character. LEDsare arranged below the key topsEach of the key topshas a semitransparent screenformed on a rear surface thereof in an area to be illuminated with LEDsand extending only over a region opposed to the light transmitting pattern