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. 06, 2010
Filed:
Nov. 28, 2006
Applicants:
Mitsuhiro Moriyasu, Suzuka, JP;
Hideyuki Chikazawa, Tsu, JP;
Inventors:
Mitsuhiro Moriyasu, Suzuka, JP;
Hideyuki Chikazawa, Tsu, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
When the temperature value detected by a temperature detecting circuit is lower than a previously designated set temperature value, cathode fluorescent lamps (CFLs) are operated to illuminate with a duty ratio of 100% so as to enhance the brightness. When the detected temperature value has become equal to or higher than the previously designated set temperature value, CFLs are operated to illuminate by changing the duty ratio into a user set value.