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. 12, 2004
Filed:
Oct. 22, 2002
Mitsuo Ohizumi, Fukushima-ken, JP;
Takuro Sugiura, Fukushima-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
A front light includes a light guide panel, a light guide bar placed along an end face of the light guide panel, and light-emitting elements placed at both ends of the light guide bar. A cover member including a reflecting-surface covering portion for covering an end on the reflecting-surface side of the light guide panel, a light-guide covering portion for covering the light guide bar, and an emergent-surface covering portion for covering an end on the emergent-surface side of the light guide panel is mounted so as to cover at least the light guide bar and the ends of the light guide panel. The reflecting-surface covering portion protrudes longer in the light guide direction than the emergent-surface covering portion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile