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. 15, 2014
Filed:
Oct. 25, 2012
Applicant:
M-system Co., Ltd., Osaka, JP;
Inventor:
Saburo Miyamichi, Osaka, JP;
Assignee:
M-System Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/02 (2006.01);
U.S. Cl.
CPC ...
H05B 37/02 (2013.01);
Abstract
An LED lampaccording to one embodiment of the present invention includes a pair of input terminal parts, a rectifier circuit unit, and an LED unit. And the LED lamphas variable inductance units L, Lfor causing an AC to flow from one of the pair of input terminal partsto the other input terminal part through the rectifier circuit unit, a current detection unitfor detecting a magnitude of a DC flowing through the LED unit, and an inductance variable control unitfor making inductance values of the variable inductance units L, Lvariable according to the magnitude of the DC detected by the current detection unit