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. 20, 2009
Filed:
Feb. 20, 2008
Applicants:
Chikara Nishio, Kawasaki, JP;
Toshikazu Takahashi, Yokohama, JP;
Inventors:
Chikara Nishio, Kawasaki, JP;
Toshikazu Takahashi, Yokohama, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light-guiding plate, an optical source device and an electronic device. The light-guiding plate including an incident surface, and an emission surface substantially perpendicular to the incident surface. The incident surface has a surface substantially perpendicular to the incident surface, and has projections or depressions extending substantially parallel to the emission surface. The incident surface has flat planes among the projections or depressions.