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:
Sep. 01, 2015
Filed:
Aug. 05, 2011
Applicants:
Norikazu Tateishi, Tokyo, JP;
Takashi Ohsawa, Tokyo, JP;
Inventors:
Norikazu Tateishi, Tokyo, JP;
Takashi Ohsawa, Tokyo, JP;
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 41/00 (2006.01); H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0815 (2013.01); H05B 33/083 (2013.01); H05B 33/0809 (2013.01); H05B 33/0821 (2013.01); H05B 33/0827 (2013.01);
Abstract
An LED lighting devicelights LED blocksandwhich correspond to a plurality of functions of an illuminator such as headlights and are connected in series. The LED blocksandare connected in series with a current converting unit. While the LED blocksandare supplied with a current Ia from a single DC/DC converter unit, the LED blockis supplied with a current Ib that passes through conversion by the current converting unitand that differs from the current Ia the DC/DC converter unitoutputs. Thus, the LED blocksandare each lit with appropriate brightness.