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:
Mar. 11, 2008
Filed:
Sep. 15, 2005
Applicants:
Satoru Kato, Aichi, JP;
Tetsu Kachi, Aichi, JP;
Kazuyoshi Tomita, Aichi, JP;
Hiroshi Ito, Aichi, JP;
Masanori Kojima, Aichi, JP;
Inventors:
Satoru Kato, Aichi, JP;
Tetsu Kachi, Aichi, JP;
Kazuyoshi Tomita, Aichi, JP;
Hiroshi Ito, Aichi, JP;
Masanori Kojima, Aichi, JP;
Assignee:
Toyoda Gosei Co., Ltd., Nishikasugai-gun, Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light source comprising a light emitting diode comprising a GaN-based compound and having a single quantum well structure, and a driving voltage source for applying a pulse voltage to the light emitting diode, wherein a voltage at a low level of the pulse voltage is set to a voltage lower than a voltage at which a fall time of the light emitting diode is made the longest.